CBI Fire Danger and Forecast Discussion

Chandler Burning Index Description
| LOW <50 |
MODERATE 50-75 |
HIGH 75-90 |
VERY HIGH 90-97.5 |
EXTREME <97.5 |
The monthly fire potential is represented by a modified version of the Chandler Burning Index (CBI). CBI provides a measure of the effects of average monthly temperature and humidity on fire intensity and rate of spread (not the same as NFDRS rate of spread). Both the intensity and spread components of the Index are linearly related to temperature (an increase in temperature results in a proportionately higher Index), but are exponentially related to humidity (a small decrease in humidity results in a large increase in the Index). The modified version of the Chandler Burning Index is computed from:
CBI = (((110 - 1.373*RH) - 0.54 * (10.20 - T)) * (124 * 10**(-0.0142*RH)))/60
where:
RH = forecast monthly mean afternoon relative humidity (percent)
T = forecast monthly mean afternoon temperature (degrees Celsius)
The Chandler Burning Index has been shown to be highly correlated with monthly fire activity.
*The Hourly Map values may be utilized as a guide to fire danger conditions but should not be used solely by themselves for decision processes. |
|
| Fire Danger Rating and Color Code | Description |
| Low (L) (Green) | Fuels do not ignite readily from small firebrands although a more intense heat source, such as lightning, may start fires in duff or punky wood. Fires in open cured grasslands may burn freely a few hours after rain, but woods fires spread slowly by creeping or smoldering, and burn in irregular fingers. There is little danger of spotting. |
| Moderate (M) (Blue) | Fires can start from most accidental causes but, with the exception of lightning fires in some areas, the number of starts is generally low. Fires in open cured grasslands will burn briskly and spread rapidly on windy days. Timber fires spread slowly to moderately fast. The average fire is of moderate intensity, although heavy concentrations of fuel, especially draped fuel, may burn hot. Short-distance spotting may occur, but is not persistent. Fires are not likely to become serious and control is relatively easy. |
| High (H) (Yellow) | All fine dead fuels ignite readily and fires start easily from most causes. Unattended brush and campfires are likely to escape. Fires spread rapidly and short-distance spotting is common. High-intensity burning may develop on slopes or in concentrations of fine fuels. Fires may become serious and their control difficult unless they are attacked successfully while small. |
| Very High (VH) (Orange) | Fires start easily from all causes and, immediately after ignition, spread rapidly and increase quickly in intensity. Spot fires are a constant danger. Fires burning in light fuels may quickly develop high intensity characteristics such as long-distance spotting and fire whirlwinds when they burn into heavier fuels. |
| Extreme (E) (Red) | Fires start quickly, spread furiously, and burn intensely. All fires are potentially serious. Development into high intensity burning will usually be faster and occur from smaller fires than in the very high fire danger class. Direct attack is rarely possible and may be dangerous except immediately after ignition. Fires that develop headway in heavy slash or in conifer stands may be unmanageable while the extreme burning condition lasts. Under these conditions the only effective and safe control action is on the flanks until the weather changes or the fuel supply lessens. |
National Interagency Fire Center Current Large Incidents Map
Note:The Current Large Incidents Map will return next fire season or as situations warrant.
Large Incident: A wildfire of 100 acres or more occuring in timber, or a wildfire of 300 acres or more occuring in grass/sage.
Wildland Fire: Any nonstructure fire, other than prescribed fire, that occurs in the wildland.
Wildland Fire - IMT1: Wildland fire; Type 1 Incident Management Team Assigned.
Wildland Fire - IMT2: Wildland fire; Type 2 Incident Management Team Assigned.
Wildland Fire - Other: Wildland fire; Other Incident Management Team Assigned besides a Type 1 or Type 2 team (e.g. Type 3).
Information based on data provided by the National Interagency Fire Center and is subject to change.
CAL FIRE Warns Residents of Carbon Monoxide Danger
You can't see or smell carbon monoxide, but at high levels it can kill a person in minutes. By following a few simple steps, you can help protect yourself and your family from this silent killer.
January 13, 2012 - The Fire Situation Report
The lack of rain across the state has lead to one of the driest winters on record. Watch this video for more on what this dry weather means for California's fire danger.
National Fire Links
- InciWeb
- National Situation Report
- National Interagency Coordination Center
- National Geographic Area Coordination Centers
- Predictive Services Program-Lower 48 Links
- National Fire Weather Page
- Storm Prediction Center National Fire Weather Outlook
- The Experimental Wildfire ABBA Fire Product Maps
Northern California Fire Links
- Northern California Daily Outlook
- Northern California 7 Day Significant Fire Potential
- Northern California (ONCC) Weather
- Northern California (ONCC) Intelligence
- Northern California (ONCC) Fuels/Fire Danger
- Northern California (ONCC) Outlooks
- Northern California (ONCC) Logistics/Dispatch
- Northern California Geographic Area Coordination Center
- California Department of Forestry and Fire Protection (CAL FIRE)
- CDF Statewide Fire Map (PDF)
- CDF CalFire TV on YouTube
- Western Region Fire Weather
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More About Fire And What You Need To Know
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Fire Weather Forecast Discussion

000
FNUS56 KSTO 042233
FWFSTO
FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
233 PM PST SAT FEB 4 2012
.DISCUSSION...
HIGH PRESSURE WILL MAINTAIN DRY WEATHER OVER INTERIOR NORTHERN
CALIFORNIA THROUGH THE WEEKEND. MODERATE GUSTS POSSIBLE IN HIGHER
TERRAIN. THE NEXT STORM SYSTEM WILL MOVE INTO NORCAL LATE MONDAY
THROUGH TUESDAY BRINGING SOME LIGHT PRECIPITATION TO THE DISTRICTS
AND A CHANCE OF WETTING RAIN ALONG THE COASTAL RANGE. HIGH PRESSURE
RETURNS ON WEDNESDAY WITH ABOVE NORMAL TEMPERATURES AND DRIER RH
VALUES THROUGH FRIDAY MORNING.
CAZ213-052245-
EASTERN PORTION OF SHASTA/TRINITY NF-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........35-40 LOWER ELEVATIONS...EXCEPT 25-34
HIGHER ELEVATIONS.
MAX HUMIDITY.............61-70 PERCENT LOWER ELEVATIONS...EXCEPT
69-84 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH BECOMING NORTH 2
TO 6 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH BECOMING
NORTHEAST 1 TO 6 MPH AFTER MIDNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........61-66 LOWER ELEVATIONS...EXCEPT 51-59
HIGHER ELEVATIONS.
MIN HUMIDITY.............21-31 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTHEAST WINDS 1 TO 6 MPH.
RIDGES/UPR SLOPES....NORTHEAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........36-41 LOWER ELEVATIONS...EXCEPT 27-35
HIGHER ELEVATIONS.
MAX HUMIDITY.............63-78 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....NORTHEAST WINDS 1 TO 5 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
MAX TEMPERATURE..........60-65 LOWER ELEVATIONS...EXCEPT 49-55
HIGHER ELEVATIONS.
MIN HUMIDITY.............18-33 PERCENT LOWER ELEVATIONS...EXCEPT
32-47 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTH WINDS 2 TO 5 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....EAST WINDS 1 TO 6 MPH.
CWR......................0 PERCENT.
$$
CAZ214-052245-
BURNEY BASIN AND NORTHEAST PLATEAU IN SHASTA COUNTY INCLUDING
NORTHWEST LASSEN NF NORTH OF LASSEN NP-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........22-28.
MAX HUMIDITY.............75-84 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....SOUTHEAST WINDS 1 TO 6 MPH.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........51-56 LOWER ELEVATIONS...EXCEPT 46-51
HIGHER ELEVATIONS.
MIN HUMIDITY.............28-33 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH BECOMING EAST 2
TO 7 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........22-27.
MAX HUMIDITY.............76-91 PERCENT LOWER ELEVATIONS...EXCEPT
65-80 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 2 TO 6 MPH IN THE EVENING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....SOUTHEAST WINDS 3 TO 8 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
MAX TEMPERATURE..........51-56 LOWER ELEVATIONS...EXCEPT 46-51
HIGHER ELEVATIONS.
MIN HUMIDITY.............24-39 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 2 TO 5 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
$$
CAZ215-052245-
NORTHERN SACRAMENTO VALLEY TO SOUTHERN TEHAMA COUNTY LINE BELOW
1000 FT-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........37-42.
MAX HUMIDITY.............63-78 PERCENT.
20-FOOT WINDS............VARIABLE LESS THAN 5 MPH BECOMING NORTH 1
TO 5 MPH AFTER MIDNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........63-69.
MIN HUMIDITY.............19-24 PERCENT.
20-FOOT WINDS............NORTH WINDS 1 TO 5 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........36-42.
MAX HUMIDITY.............62-77 PERCENT.
20-FOOT WINDS............VARIABLE LESS THAN 5 MPH BECOMING NORTH 1
TO 5 MPH AFTER MIDNIGHT.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY.
MAX TEMPERATURE..........61-66.
MIN HUMIDITY.............22-36 PERCENT.
20-FOOT WINDS............NORTH WINDS 1 TO 5 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
$$
CAZ216-052245-
CENTRAL SACRAMENTO VALLEY IN GLENN, COLUSA, YUBA, NORTHERN
SUTTER, AND BUTTE COUNTY BELOW 1000 FT-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........36-41.
MAX HUMIDITY.............72-87 PERCENT.
20-FOOT WINDS............VARIABLE LESS THAN 5 MPH BECOMING NORTH 2
TO 7 MPH AFTER MIDNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........62-67.
MIN HUMIDITY.............20-35 PERCENT.
20-FOOT WINDS............NORTH WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............PARTLY CLOUDY.
MIN TEMPERATURE..........38-43.
MAX HUMIDITY.............67-82 PERCENT.
20-FOOT WINDS............NORTH WINDS 1 TO 6 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY.
MAX TEMPERATURE..........61-66.
MIN HUMIDITY.............24-39 PERCENT.
20-FOOT WINDS............NORTH WINDS 2 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
$$
CAZ217-052245-
SOUTHERN SACRAMENTO VALLEY IN YOLO-
SACRAMENTO FAR WESTERN PLACER, SOUTHERN SUTTER AND SOLANO COUNTY
BELOW 1000 FT-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........35-40.
MAX HUMIDITY.............78-93 PERCENT.
20-FOOT WINDS............VARIABLE LESS THAN 5 MPH BECOMING NORTH 1
TO 6 MPH IN THE LATE EVENING AND
OVERNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........62-67.
MIN HUMIDITY.............29-41 PERCENT.
20-FOOT WINDS............NORTH WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............PARTLY CLOUDY.
MIN TEMPERATURE..........38-43.
MAX HUMIDITY.............72-87 PERCENT.
20-FOOT WINDS............VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY.
MAX TEMPERATURE..........62-67.
MIN HUMIDITY.............30-45 PERCENT.
20-FOOT WINDS............NORTH WINDS 1 TO 5 MPH SHIFTING TO THE
SOUTHEAST IN THE AFTERNOON.
CWR......................0 PERCENT.
$$
CAZ218-052245-
CARQUINEZ STRAIT AND DELTA-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........35-40.
MAX HUMIDITY.............84-97 PERCENT.
20-FOOT WINDS............NORTH WINDS 1 TO 5 MPH.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........63-68.
MIN HUMIDITY.............35-41 PERCENT.
20-FOOT WINDS............NORTHEAST WINDS 1 TO 6 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............PARTLY CLOUDY.
MIN TEMPERATURE..........37-42.
MAX HUMIDITY.............72-87 PERCENT.
20-FOOT WINDS............NORTH WINDS 1 TO 5 MPH IN THE EVENING
BECOMING VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY.
MAX TEMPERATURE..........63-68.
MIN HUMIDITY.............39-54 PERCENT.
20-FOOT WINDS............NORTHEAST WINDS 1 TO 6 MPH SHIFTING TO THE
SOUTHEAST 2 TO 6 MPH IN THE AFTERNOON.
CWR......................0 PERCENT.
$$
CAZ219-052245-
NORTHERN SAN JOAQUIN VALLEY IN SAN JOAQUIN AND STANISLAUS
COUNTIES BELOW 1000 FT-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........36-41.
MAX HUMIDITY.............79-94 PERCENT.
20-FOOT WINDS............VARIABLE LESS THAN 5 MPH BECOMING NORTH UP
TO 5 MPH AFTER MIDNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........63-68.
MIN HUMIDITY.............32-46 PERCENT.
20-FOOT WINDS............NORTH WINDS UP TO 5 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............PARTLY CLOUDY.
MIN TEMPERATURE..........39-44.
MAX HUMIDITY.............70-85 PERCENT.
20-FOOT WINDS............VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY.
MAX TEMPERATURE..........62-67.
MIN HUMIDITY.............32-47 PERCENT.
20-FOOT WINDS............SOUTHEAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
$$
CAZ263-279-052245-
SOUTHEAST EDGE SHASTA-TRINITY NF AND WESTERN PORTIONS OF TEHAMA-
GLENN UNIT-EASTERN MENDOCINO NF-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........34-43.
MAX HUMIDITY.............52-62 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........62-67 LOWER ELEVATIONS...EXCEPT 51-61
HIGHER ELEVATIONS.
MIN HUMIDITY.............17-25 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............PARTLY CLOUDY.
MIN TEMPERATURE..........34-43.
MAX HUMIDITY.............62-77 PERCENT LOWER ELEVATIONS...EXCEPT
49-64 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY.
MAX TEMPERATURE..........59-64 LOWER ELEVATIONS...EXCEPT 48-54
HIGHER ELEVATIONS.
MIN HUMIDITY.............23-38 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH BECOMING EAST 1
TO 5 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH BECOMING
SOUTHEAST 4 TO 9 MPH IN THE AFTERNOON.
CWR......................0 PERCENT.
$$
CAZ264-052245-
LAKE COUNTY PORTION OF LAKE-NAPA-SONOMA UNIT-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........33-38 LOWER ELEVATIONS...EXCEPT 39-44
HIGHER ELEVATIONS.
MAX HUMIDITY.............67-82 PERCENT LOWER ELEVATIONS...EXCEPT
48-63 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 1 TO 5 MPH EARLY IN THE EVENING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....EAST WINDS 2 TO 5 MPH EARLY IN THE EVENING
BECOMING VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........65-70 LOWER ELEVATIONS...EXCEPT 59-64
HIGHER ELEVATIONS.
MIN HUMIDITY.............22-31 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............PARTLY CLOUDY.
MIN TEMPERATURE..........35-40 LOWER ELEVATIONS...EXCEPT 41-46
HIGHER ELEVATIONS.
MAX HUMIDITY.............70-85 PERCENT LOWER ELEVATIONS...EXCEPT
58-73 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
MAX TEMPERATURE..........61-66 LOWER ELEVATIONS...EXCEPT 54-59
HIGHER ELEVATIONS.
MIN HUMIDITY.............28-43 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH BECOMING EAST 2
TO 7 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....EAST WINDS 3 TO 8 MPH.
CWR......................0 PERCENT.
$$
CAZ266-052245-
NORTHERN SIERRA FOOTHILLS FROM 1000 TO 3000 FT. INCLUDES PORTIONS
OF SHASTA-TRINITY AND BUTTE UNITS-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........35-42.
MAX HUMIDITY.............59-70 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH BECOMING
NORTHEAST 3 TO 8 MPH IN THE LATE EVENING
AND OVERNIGHT.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH BECOMING
NORTHEAST 3 TO 8 MPH IN THE LATE EVENING
AND OVERNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........57-66.
MIN HUMIDITY.............22-27 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTH WINDS 3 TO 8 MPH UNTIL LATE
AFTERNOON BECOMING VARIABLE LESS THAN 5
MPH.
RIDGES/UPR SLOPES....NORTH WINDS 3 TO 8 MPH UNTIL LATE
AFTERNOON BECOMING VARIABLE LESS THAN 5
MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........35-42.
MAX HUMIDITY.............58-73 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTHEAST WINDS 2 TO 7 MPH.
RIDGES/UPR SLOPES....NORTHEAST WINDS 3 TO 8 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY.
MAX TEMPERATURE..........55-63.
MIN HUMIDITY.............22-37 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTHEAST WINDS 3 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....EAST WINDS 3 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
$$
CAZ220-267-052245-
SOUTHERN MOTHERLODE FROM 1000 TO 3000 FT. INCLUDES PORTIONS OF
CALAVERAS-TUOLUMNE UNIT-
NORTHERN MOTHERLODE FROM 1000 TO 3000 FT. INCLUDES PORTIONS OF
NEVADA-YUBA-PLACER-AMADOR AND ELDORADO UNITS-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........33-40.
MAX HUMIDITY.............75-88 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH BECOMING
NORTHEAST 2 TO 7 MPH IN THE LATE EVENING
AND OVERNIGHT.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH BECOMING EAST 2
TO 7 MPH IN THE LATE EVENING AND
OVERNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........57-65.
MIN HUMIDITY.............31-40 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 2 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....EAST WINDS 2 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........34-42.
MAX HUMIDITY.............67-82 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 1 TO 6 MPH.
RIDGES/UPR SLOPES....NORTHEAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............PARTLY CLOUDY.
MAX TEMPERATURE..........56-65.
MIN HUMIDITY.............26-41 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 3 TO 7 MPH SHIFTING TO THE
SOUTH 2 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....EAST WINDS 3 TO 7 MPH SHIFTING TO THE
SOUTH 2 TO 6 MPH IN THE AFTERNOON.
CWR......................0 PERCENT.
$$
CAZ268-052245-
NORTHERN SIERRA INCLUDING LASSEN NP AND PLUMAS AND LASSEN NF/S
WEST OF THE SIERRA CREST (WEST OF EVANS PEAK-GRIZZLY PEAK-
BECKWORTH PEAK)-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........21-32.
MAX HUMIDITY.............65-80 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH BECOMING
NORTHEAST 3 TO 8 MPH IN THE LATE EVENING
AND OVERNIGHT.
RIDGES/UPR SLOPES....EAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........44-54.
MIN HUMIDITY.............23-31 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 2 TO 7 MPH. LOCAL GUSTS UP TO
20 MPH IN THE MORNING.
RIDGES/UPR SLOPES....EAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........23-32.
MAX HUMIDITY.............67-82 PERCENT LOWER ELEVATIONS...EXCEPT
55-70 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 3 TO 8 MPH.
RIDGES/UPR SLOPES....EAST WINDS 3 TO 8 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
MAX TEMPERATURE..........43-52.
MIN HUMIDITY.............24-39 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...SOUTHEAST WINDS 1 TO 6 MPH.
RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
$$
CAZ269-052245-
NORTHERN SIERRA INCLUDING THE TAHOE AND ELDORADO NF/S WEST OF THE
SIERRA CREST-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........30-37 LOWER ELEVATIONS...EXCEPT 21-31
HIGHER ELEVATIONS.
MAX HUMIDITY.............70-85 PERCENT LOWER ELEVATIONS...EXCEPT
55-70 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...VARIABLE LESS THAN 5 MPH BECOMING EAST 2
TO 7 MPH IN THE LATE EVENING AND
OVERNIGHT.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH BECOMING EAST 2
TO 7 MPH WITH LOCAL GUSTS UP TO 20 MPH IN
THE LATE EVENING AND OVERNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........53-58 LOWER ELEVATIONS...EXCEPT 42-52
HIGHER ELEVATIONS.
MIN HUMIDITY.............28-36 PERCENT LOWER ELEVATIONS...EXCEPT
14-29 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 2 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....EAST WINDS 1 TO 6 MPH. LOCAL GUSTS UP TO
20 MPH IN THE MORNING.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........31-37 LOWER ELEVATIONS...EXCEPT 24-32
HIGHER ELEVATIONS.
MAX HUMIDITY.............66-81 PERCENT LOWER ELEVATIONS...EXCEPT
49-64 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 2 TO 7 MPH.
RIDGES/UPR SLOPES....EAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
MAX TEMPERATURE..........53-58 LOWER ELEVATIONS...EXCEPT 40-50
HIGHER ELEVATIONS.
MIN HUMIDITY.............16-31 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...EAST WINDS 3 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....SOUTHEAST WINDS 2 TO 7 MPH.
CWR......................0 PERCENT.
$$
CAZ221-052245-
STANISLAUS NF WEST OF THE SIERRA CREST-
233 PM PST SAT FEB 4 2012
.TONIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........30-35 LOWER ELEVATIONS...EXCEPT 18-28
HIGHER ELEVATIONS.
MAX HUMIDITY.............67-82 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTHEAST WINDS 2 TO 7 MPH.
RIDGES/UPR SLOPES....VARIABLE LESS THAN 5 MPH BECOMING EAST 2
TO 7 MPH IN THE LATE EVENING AND
OVERNIGHT.
CWR......................0 PERCENT.
.SUNDAY...
SKY/WEATHER..............MOSTLY SUNNY.
MAX TEMPERATURE..........54-59 LOWER ELEVATIONS...EXCEPT 41-51
HIGHER ELEVATIONS.
MIN HUMIDITY.............27-34 PERCENT LOWER ELEVATIONS...EXCEPT
14-28 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTHEAST WINDS 3 TO 7 MPH SHIFTING TO THE
SOUTHWEST 2 TO 7 MPH LATE IN THE
MORNING...THEN BECOMING VARIABLE LESS THAN
5 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....NORTHEAST WINDS 2 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
CWR......................0 PERCENT.
.SUNDAY NIGHT...
SKY/WEATHER..............MOSTLY CLEAR.
MIN TEMPERATURE..........35-40 LOWER ELEVATIONS...EXCEPT 22-32
HIGHER ELEVATIONS.
MAX HUMIDITY.............70-85 PERCENT LOWER ELEVATIONS...EXCEPT
57-72 PERCENT HIGH ELEVATIONS.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTHEAST WINDS 1 TO 6 MPH.
RIDGES/UPR SLOPES....EAST WINDS 1 TO 6 MPH.
CWR......................0 PERCENT.
.MONDAY...
SKY/WEATHER..............MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
MAX TEMPERATURE..........54-59 LOWER ELEVATIONS...EXCEPT 38-48
HIGHER ELEVATIONS.
MIN HUMIDITY.............15-30 PERCENT.
20-FOOT WINDS............
VALLEYS/LWR SLOPES...NORTHEAST WINDS 3 TO 7 MPH IN THE MORNING
BECOMING VARIABLE LESS THAN 5 MPH.
RIDGES/UPR SLOPES....SOUTH WINDS 1 TO 6 MPH.
CWR......................0 PERCENT.
$$
.EXTENDED...
...SHASTA COUNTY MOUNTAINS AND COASTAL RANGE
.MONDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW.
LOWS 31 TO 38. SOUTHEAST WINDS 4 TO 9 MPH.
.TUESDAY...SHOWERS LIKELY AND A CHANCE OF SNOW SHOWERS. HIGHS
42 TO 49. SOUTHEAST WINDS 5 TO 11 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AND SNOW SHOWERS. LOWS 26 TO 36. NORTHEAST WINDS 1 TO 6 MPH.
.WEDNESDAY...NOT AS COOL. MOSTLY SUNNY. HIGHS 49 TO 57. NORTH
WINDS 2 TO 5 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS 30 TO 40. NORTHEAST WINDS
2 TO 5 MPH.
.THURSDAY...MOSTLY SUNNY. HIGHS 52 TO 60. NORTHEAST WINDS 1 TO
6 MPH.
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS 30 TO 40. VARIABLE LESS THAN
5 MPH.
...NORTHERN SIERRA AND LASSEN PARK
.MONDAY NIGHT...MOSTLY CLOUDY. LOWS 30 TO 40. SOUTHEAST WINDS
2 TO 7 MPH.
.TUESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND SNOW
SHOWERS. HIGHS 43 TO 50. SOUTHEAST WINDS 4 TO 9 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF SNOW SHOWERS. LOWS 26 TO 36. NORTHEAST WINDS
2 TO 7 MPH.
.WEDNESDAY...PARTLY CLOUDY. HIGHS 49 TO 56. NORTHEAST WINDS 1 TO
5 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS 28 TO 38. NORTHEAST WINDS
3 TO 8 MPH.
.THURSDAY...SUNNY. HIGHS 51 TO 60. EAST WINDS 2 TO 7 MPH.
.THURSDAY NIGHT...MOSTLY CLEAR. LOWS 28 TO 38. EAST WINDS 1 TO
6 MPH.
...SIERRA NEVADA FOOTHILLS
.MONDAY NIGHT...MOSTLY CLOUDY. LOWS 40 TO 45. SOUTHEAST WINDS
2 TO 7 MPH.
.TUESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS 51 TO
57. SOUTHEAST WINDS 4 TO 9 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
35 TO 41. NORTH WINDS 2 TO 7 MPH.
.WEDNESDAY...PARTLY CLOUDY. HIGHS 56 TO 61. VARIABLE LESS THAN
5 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS 36 TO 41. NORTHEAST WINDS
2 TO 7 MPH.
.THURSDAY...SUNNY. HIGHS 60 TO 65. EAST WINDS 2 TO 7 MPH.
.THURSDAY NIGHT...CLEAR. LOWS 36 TO 42. NORTHEAST WINDS 1 TO
5 MPH.
...CENTRAL VALLEY AND DELTA
.MONDAY NIGHT...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
43 TO 48. SOUTHEAST WINDS 2 TO 7 MPH.
.TUESDAY...MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS 56 TO
61. SOUTHEAST WINDS 4 TO 9 MPH.
.TUESDAY NIGHT...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.
LOWS 38 TO 43. NORTH WINDS 3 TO 8 MPH.
.WEDNESDAY...MOSTLY SUNNY. HIGHS 61 TO 66. NORTHWEST WINDS 2 TO
6 MPH.
.WEDNESDAY NIGHT...MOSTLY CLEAR. LOWS 38 TO 43. NORTHWEST WINDS
2 TO 7 MPH.
.THURSDAY...SUNNY. HIGHS 64 TO 69. VARIABLE LESS THAN 5 MPH.
.THURSDAY NIGHT...CLEAR. LOWS 38 TO 43. VARIABLE LESS THAN 5 MPH.
$$
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