Alert archive / California / Fire Weather Watches in 2011
Fire Weather Watch 2, NWS San Diego, CA
NWS San Diego, CA issued this fire weather watch at Nov 29, 2011, 1:35 PM PST for 4 counties in California. It took effect at Nov 30, 2011, 10:00 PM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Nov 29, 2011, 1:35 PM PST (21:35 UTC)
- In effect from
- Nov 30, 2011, 10:00 PM PST
- Expired
- Nov 30, 2011, 1:30 PM PST
- In force
- Issued by
- NWS San Diego, CA
Counties Orange County, CA, Riverside County, CA, San Bernardino County, CA, San Diego County, CA
The radar
The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 21:38 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
San Diego, CA (KNKX), launched 12:00Z, 9.6 hours before the alert went out and 124 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 4651 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 46 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this fire weather watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Diego, CA wrote its last area forecast discussion before this fire weather watch went out at Nov 29, 9:35 AM PST, 4 hours earlier.
Area forecast discussion, Nov 29, 9:35 AM PST, 4 hours before
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</html>Hazardous weather outlook, Nov 29, 3:13 AM PST, 10 hours 22 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SAN DIEGO CA 313 AM PST TUE NOV 29 2011 CAZ042-043-048-050-055>058-060>062-PZZ750-775-301115- ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS- RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS- SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS- COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS- COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT 30 NM- WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO 60 NM OUT INCLUDING SAN CLEMENTE ISLAND- 313 AM PST TUE NOV 29 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EXTREME SOUTHWESTERN CALIFORNIA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. THURSDAY THROUGH SATURDAY...A COLD STORM SYSTEM WILL MOVE INTO THE REGION FROM THE NORTH WITH GUSTY NORTHEAST WINDS...SHOWERS...AND RAPIDLY LOWERING SNOW LEVELS. PRECIPITATION COULD BEGIN AS EARLY AS THURSDAY MORNING. NO HEAVY AMOUNTS OF RAINFALL ARE EXPECTED...BUT ISOLATED THUNDERSTORMS WILL BE POSSIBLE. SNOWFALL MAY ACCUMULATE ABOVE 4000 FEET IN THE MOUNTAINS AND ADJACENT HIGH DESERT SLOPES BY SATURDAY MORNING...POSSIBLY MAKING TRAVEL DIFFICULT IN SOME AREAS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.
In the hours before
Special weather statement, Nov 29, 10:05 AM PST, 3 hours 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 1005 AM PST TUE NOV 29 2011 CAZ042-043-048-050-055>058-060>062-301400- ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS- SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE- SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS- RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS- SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS- COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS- 1005 AM PST TUE NOV 29 2011 ...VERY STRONG AND GUSTY WINDS...COLDER TEMPERATURES...AND THE POTENTIAL FOR UNSETTLED WEATHER RETURNING WEDNESDAY NIGHT THROUGH FRIDAY... A VERY STRONG AND UNSEASONABLY COLD TROUGH OF LOW PRESSURE WILL DIG OVER THE GREAT BASIN AND LOWER COLORADO RIVER BASIN WEDNESDAY INTO THURSDAY...BRINGING SIGNIFICANTLY COLDER WEATHER TO THE REGION AS WELL AS VERY STRONG AND GUSTY WINDS. THERE IS EVEN THE POTENTIAL FOR SOME SHOWERS AND THUNDERSTORMS TO DEVELOP ON THURSDAY AND FRIDAY...WITH SNOW LEVELS POSSIBLY FALLING INTO THE FOOTHILLS WITH SOME OF THE STRONGER SHOWERS. WINDS... STRONG AND GUSTY NORTH TO NORTHEAST WINDS WILL DEVELOP WEDNESDAY EVENING AND CONTINUE THROUGH FRIDAY...AS STRONG OFFSHORE FLOW DEVELOPS AROUND THE NORTHWEST SIDE OF THE SYSTEM. STRONGEST WINDS WILL MOST LIKELY BE IN ORANGE COUNTY...THE INLAND EMPIRE AND THE SAN BERNARDINO COUNTY MOUNTAINS...WHERE WIND GUSTS COULD EXCEED 70 MPH AT TIMES...ESPECIALLY THROUGH AND BELOW PASSES AND CANYONS. STRONG WINDS ARE ALSO LIKELY IN THE APPLE AND LUCERNE VALLEYS. DUE TO THE UNCERTAINTY OF THE POSITION OF THE UPPER LOW...STRONG WINDS ARE LESS CERTAIN IN SAN DIEGO COUNTY...BUT ARE STILL POSSIBLE. STRONGEST WINDS ARE EXPECTED LATE WEDNESDAY NIGHT AND THURSDAY...WHEN DAMAGE TO TREES AND POWER LINES MAY OCCUR. TRAVEL WILL BE DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. TEMPERATURES... MUCH COLDER AIR WILL FILTER INTO SOUTHERN CALIFORNIA ON THURSDAY...ESPECIALLY IN THE MOUNTAINS AND HIGH DESERTS. HIGHS WILL MOSTLY BE IN THE 30S AND 40S IN THE MOUNTAINS...WHICH WILL BE 15 TO 20 DEGREES BELOW NORMAL. IN THE APPLE AND LUCERNE VALLEYS...HIGHS WILL STRUGGLE TO REACH 50. WIND CHILL READINGS MAY ALSO BE IN THE TEENS IN COLDEST PARTS OF THE SAN BERNARDINO MOUNTAINS THURSDAY. MOST VALLEY AND COASTAL AREAS WILL STRUGGLE TO WARM INTO THE LOWER TO MID 60S. LITTLE OR NO WARMING IS EXPECTED FRIDAY...THOUGH WIND SPEEDS WILL DECREASE SOMEWHAT. SHOWERS AND THUNDERSTORMS... THERE IS A SMALL CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY THROUGH FRIDAY...ESPECIALLY OVER HIGHER TERRAIN. PRECIPITATION AMOUNTS ARE STILL HIGHLY UNCERTAIN...AND WILL DEPEND ON THE TRACK OF THE UPPER LOW...WITH MOST AREAS SEEING LIGHT AMOUNTS. SNOW LEVELS WILL LIKELY BE LOW...FALLING TO 3500 TO 4000 FEET. HOWEVER...LOCALLY LOWER SNOW LEVELS WILL BE POSSIBLE ON THE NORTH SLOPES OF THE SAN BERNARDINO MOUNTAINS...AND WITH THE HEAVIER SHOWERS. A FEW INCHES OF SNOW COULD FALL IN THE MOUNTAINS. OUTLOOK... THE PRECIPITATION WILL END BY FRIDAY NIGHT. HOWEVER...OFFSHORE FLOW WILL CONTINUE TO BRING LOCALLY GUSTY WINDS THROUGH THE WEEKEND...BUT AT LOWER SPEEDS THAN ON THURSDAY AND FRIDAY. PEOPLE WITH OUTDOOR INTERESTS SHOULD MAINLY BE PREPARED FOR THE STRONG GUSTY WINDS AND COLDER WEATHER WEDNESDAY NIGHT THROUGH FRIDAY. STAY TUNED TO NOAA WEATHER RADIO...THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/SANDIEGO...OR LOCAL MEDIA FOR UPDATES. PALMER
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 29, 2:00 PM PST | High Wind Watch | SGX | Riverside, San Bernardino, San Diego | 8 hr |
| Nov 29, 2:00 PM PST | High Wind Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 61 hr |
Nearby
Fire Weather Watches in California, 2011Every fire weather watch in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.