Alert archive / California / Winter Storm Warnings in 2012
Winter Storm Warning 9, NWS San Diego, CA
NWS San Diego, CA issued this winter storm warning at Dec 11, 2012, 1:13 PM PST for San Bernardino County, California. It took effect at Dec 12, 2012, 4:00 PM PST. It was in force for . No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 11, 2012, 1:13 PM PST (21:13 UTC)
- In effect from
- Dec 12, 2012, 4:00 PM PST
- Expired
- Dec 12, 2012, 3:25 AM PST
- In force
- Issued by
- NWS San Diego, CA
County San Bernardino County, CA
The nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 9.2 hours before the alert went out and 180 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
- 2200 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 132 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
650 WWUS46 KSGX 112113 WSWSGX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 113 PM PST TUE DEC 11 2012 ...COLD LOW PRESSURE SYSTEM TO PRODUCE WINTRY WEATHER ALONG THE MOUNTAINS WEDNESDAY EVENING THROUGH MOST OF THURSDAY... .A COLD LOW PRESSURE SYSTEM WILL DIG DOWN OVER CALIFORNIA LATE WEDNESDAY AND MOVE THROUGH SOUTHERN CALIFORNIA EARLY THURSDAY THROUGH FRIDAY MORNING. ALTHOUGH SOME LIGHT SNOW SHOWERS MAY LINGER OVER THE MOUNTAINS THROUGH EARLY FRIDAY MORNING...THE MAJORITY OF SNOW WILL OCCUR WEDNESDAY EVENING THROUGH THURSDAY EVENING AS THE COLD FRONT MOVES THROUGH THE AREA. SNOW LEVELS WILL INITIALLY BE AT 7000-7500 FEET WEDNESDAY AFTERNOON...AND THEN FALLING TO 4500-5000 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000-4500 FEET BY LATE THURSDAY. SNOW LEVELS MAY LOCALLY DROP TO 3500 FEET. THE SAN BERNARDINO MOUNTAINS ARE LIKELY TO SEE THE MOST SNOWFALL...WITH TOTAL SNOW AMOUNTS REACHING UP TO A FOOT OVER THE MOUNTAIN PEAKS. MEANWHILE...THE RIVERSIDE AND SAN DIEGO COUNTY MOUNTAINS WILL LIKELY SEE TOTAL SNOWFALL OF AROUND 2 TO 6 INCHES OVER THE HIGHEST ELEVATIONS. CAZ055-120515- /O.NEW.KSGX.WS.W.0009.121213T0000Z-121214T0000Z/ SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE... BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE... FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...LAKE ARROWHEAD... MOUNT BALDY...MOUNTAIN HOME VILLAGE...OAK GLEN... RUNNING SPRINGS...TWIN PEAKS...WRIGHTWOOD 113 PM PST TUE DEC 11 2012 ...WINTER STORM WARNING IN EFFECT FROM 4 PM WEDNESDAY TO 4 PM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 4 PM WEDNESDAY TO 4 PM PST THURSDAY. * SNOW LEVELS...6500 FEET WEDNESDAY AFTERNOON...DROPPING TO 4500 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...MAINLY WEDNESDAY EVENING THROUGH EARLY THURSDAY EVENING. * SNOW ACCUMULATIONS...A DUSTING TO 1 INCH AROUND 4000 FEET ELEVATION...TO 2 TO 6 INCHES OF SNOW FROM 4500 TO 6000 FEET ELEVATION...TO 6 TO 12 INCHES OF SNOW ABOVE 6000 FEET ELEVATION. * WINDS...SOUTH AT 10 TO 20 MPH WITH GUSTS OF 25 TO 35 MPH...BECOMING SOUTH TO SOUTHWEST 5 TO 15 MPH THURSDAY AFTERNOON. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN BLOWING SNOW. * IMPACTS...RESIDENTS AND TRAVELERS INTO HIGHER ELEVATIONS IN THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS AND POSSIBLE ROAD CLOSURES. IF POSSIBLE...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING. THIS WEATHER COULD BE DEADLY FOR UNPREPARED CAMPERS OR HIKERS. SNOW LEVELS MAY LOWER ENOUGH TO IMPACT TRAVEL ALONG THE CAJON PASS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO FRIDAY MORNING BEFORE DISSIPATING COMPLETELY BY FRIDAY AFTERNOON. THERE IS THE POTENTIAL FOR SOME ADDITIONAL SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ058-120515- /O.NEW.KSGX.WW.Y.0013.121213T0600Z-121214T1200Z/ SAN DIEGO COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...CUYAMACA...JULIAN... MOUNT LAGUNA 113 PM PST TUE DEC 11 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM WEDNESDAY TO 4 AM PST FRIDAY... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 10 PM WEDNESDAY TO 4 AM PST FRIDAY. * SNOW LEVELS...7000 FEET...DROPPING TO 5000 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...LATE WEDNESDAY EVENING THROUGH LATE THURSDAY NIGHT. * SNOW ACCUMULATIONS...A DUSTING TO 2 INCHES BETWEEN 4000 AND 5000 FEET ELEVATION...TO 2 TO 6 INCHES OF SNOW ABOVE 5000 FEET. * WINDS...WEST TO SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS OF 35 TO 40 MPH...BECOMING WEST 10 TO 15 MPH WITH GUSTS OF 25 TO 30 MPH THURSDAY AFTERNOON. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN BLOWING SNOW. * IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO LATE FRIDAY MORNING. THERE IS THE POTENTIAL FOR SOME ADDITIONAL LIGHT SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ CAZ056-120515- /O.NEW.KSGX.WW.Y.0013.121213T0600Z-121214T0000Z/ RIVERSIDE COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...IDYLLWILD...PINE COVE... VISTA GRANDE 113 PM PST TUE DEC 11 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM WEDNESDAY TO 4 PM PST THURSDAY... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 10 PM WEDNESDAY TO 4 PM PST THURSDAY. * SNOW LEVELS...7000 FEET...DROPPING TO 5000 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...LATE WEDNESDAY EVENING THROUGH EARLY THURSDAY EVENING. * SNOW ACCUMULATIONS...A DUSTING TO 1 INCH FROM 4000 TO 5000 FEET...TO 2 TO 4 INCHES BETWEEN 5000 AND 6000 FEET...TO 4 TO 8 INCHES WITH LOCALLY HIGHER AMOUNTS ABOUT 6000 FEET. * WINDS...WEST TO SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS OF 35 TO 40 MPH...BECOMING WEST 10 TO 15 MPH WITH GUSTS OF 25 MPH THURSDAY AFTERNOON. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN BLOWING SNOW. * IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO LATE FRIDAY MORNING. THERE IS THE POTENTIAL FOR SOME ADDITIONAL LIGHT SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ HARRISON
2 follow-up statements
128 WWUS46 KSGX 120455 WSWSGX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 855 PM PST TUE DEC 11 2012 ...COLD PACIFIC STORM TO PRODUCE WINTRY WEATHER ALONG THE MOUNTAINS LATE WEDNESDAY AFTERNOON THROUGH MOST OF THURSDAY... .A COLD PACIFIC SYSTEM WILL DIG SOUTH ALONG THE CALIFORNIA COAST ON WEDNESDAY...BEFORE MOVING INLAND ACROSS SOUTHERN CALIFORNIA THURSDAY EVENING AND DURING THE OVERNIGHT HOURS. ALTHOUGH SOME LIGHT SNOW SHOWERS MAY LINGER OVER THE MOUNTAINS THROUGH EARLY FRIDAY MORNING...THE MAJORITY OF SNOW WILL OCCUR WEDNESDAY EVENING THROUGH THURSDAY EVENING...AS THE COLD FRONT MOVES THROUGH THE AREA. SNOW LEVELS WILL INITIALLY BE AT AND ABOVE 6500-7500 FEET WEDNESDAY AFTERNOON...THEN GRADUALLY FALL TO BETWEEN 4000-4500 FEET AND HIGHER LATE THURSDAY. SNOW LEVELS MAY LOCALLY LOWER DOWN TO 3500 FEET IN HEAVIER SHOWERS. THE SAN BERNARDINO MOUNTAINS ARE LIKELY TO SEE THE MOST SNOWFALL...WITH TOTAL SNOW AMOUNTS REACHING UP TO A FOOT OVER THE MOUNTAIN PEAKS. MEANWHILE...THE RIVERSIDE AND SAN DIEGO COUNTY MOUNTAINS WILL LIKELY SEE TOTAL SNOWFALL OF AROUND 2 TO 6 INCHES OVER THE HIGHEST ELEVATIONS. CAZ055-121330- /O.CON.KSGX.WS.W.0009.121213T0000Z-121214T0000Z/ SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE... BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE... FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...LAKE ARROWHEAD... MOUNT BALDY...MOUNTAIN HOME VILLAGE...OAK GLEN... RUNNING SPRINGS...TWIN PEAKS...WRIGHTWOOD 855 PM PST TUE DEC 11 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM WEDNESDAY TO 4 PM PST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM WEDNESDAY TO 4 PM PST THURSDAY. * SNOW LEVELS...6500 FEET WEDNESDAY AFTERNOON...DROPPING TO 4500 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...MAINLY WEDNESDAY NIGHT THROUGH EARLY THURSDAY EVENING. * SNOW ACCUMULATIONS...6 TO 12 INCHES ABOVE 6000 FEET...2 TO 6 INCHES BETWEEN 4500 AND 6000 FEET...AND A DUSTING TO 1 INCH AROUND 4000 FEET. * WINDS...SOUTH AT 20 TO 30 MPH...WITH GUSTS UP TO 45 MPH THROUGH WEDNESDAY EVENING...THEN BECOMING SOUTH TO SOUTHWEST 5 TO 15 MPH. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN BLOWING SNOW. * IMPACTS...RESIDENTS AND TRAVELERS INTO HIGHER ELEVATIONS IN THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS AND POSSIBLE ROAD CLOSURES. IF POSSIBLE...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING. THIS WEATHER COULD BE DEADLY FOR UNPREPARED CAMPERS OR HIKERS. SNOW LEVELS MAY LOWER ENOUGH TO IMPACT TRAVEL ALONG THE CAJON PASS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO FRIDAY MORNING BEFORE DISSIPATING COMPLETELY BY FRIDAY AFTERNOON. THERE IS THE POTENTIAL FOR SOME ADDITIONAL SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ058-121330- /O.CON.KSGX.WW.Y.0013.121213T0600Z-121214T1200Z/ SAN DIEGO COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...CUYAMACA...JULIAN... MOUNT LAGUNA 855 PM PST TUE DEC 11 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM WEDNESDAY TO 4 AM PST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM WEDNESDAY TO 4 AM PST FRIDAY. * SNOW LEVELS...7000 FEET...DROPPING TO 5000 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...LATE WEDNESDAY EVENING THROUGH LATE THURSDAY NIGHT. * SNOW ACCUMULATIONS...2 TO 6 INCHES ABOVE 5000 FEET...AND A DUSTING TO 2 INCHES BETWEEN 4000 AND 5000 FEET. * WINDS...WEST TO SOUTHWEST WINDS 15 TO 25 MPH...WITH GUSTS UP TO 40 MPH...BECOMING WEST 10 TO 15 MPH...WITH GUSTS UP TO 30 MPH THURSDAY AFTERNOON. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN BLOWING SNOW. * IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO LATE FRIDAY MORNING. THERE IS THE POTENTIAL FOR SOME ADDITIONAL LIGHT SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ CAZ056-121330- /O.CON.KSGX.WW.Y.0013.121213T0600Z-121214T0000Z/ RIVERSIDE COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...IDYLLWILD...PINE COVE... VISTA GRANDE 855 PM PST TUE DEC 11 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM WEDNESDAY TO 4 PM PST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM WEDNESDAY TO 4 PM PST THURSDAY. * SNOW LEVELS...7000 FEET...DROPPING TO 5000 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...LATE WEDNESDAY EVENING THROUGH EARLY THURSDAY EVENING. * SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 6000 FEET...2 TO 4 INCHES BETWEEN 5000 AND 6000 FEET...AND A DUSTING TO 1 INCH DOWN TO 4000 FEET. LOCALLY HIGHER AMOUNTS POSSIBLE ABOVE 6000 FEET. * WINDS...WEST TO SOUTHWEST WINDS 15 TO 25 MPH...WITH GUSTS UP TO 40 MPH...BECOMING WEST 10 TO 15 MPH...WITH GUSTS OF 25 MPH THURSDAY AFTERNOON. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN BLOWING SNOW. * IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO LATE FRIDAY MORNING. THERE IS THE POTENTIAL FOR SOME ADDITIONAL LIGHT SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ PALMER
063 WWUS46 KSGX 121125 WSWSGX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SAN DIEGO CA 325 AM PST WED DEC 12 2012 ...COLD PACIFIC STORM TO PRODUCE WINTRY WEATHER IN THE MOUNTAINS LATE WEDNESDAY AFTERNOON THROUGH MOST OF THURSDAY... .A COLD PACIFIC SYSTEM WILL DIG SOUTH ALONG THE CALIFORNIA COAST TODAY...BEFORE MOVING INLAND ACROSS SOUTHERN CALIFORNIA THURSDAY EVENING AND THURSDAY NIGHT. ALTHOUGH SOME LIGHT SNOW SHOWERS MAY LINGER OVER THE MOUNTAINS THROUGH EARLY FRIDAY MORNING...THE MAJORITY OF SNOW WILL OCCUR WEDNESDAY EVENING THROUGH THURSDAY EVENING AS THE COLD FRONT MOVES THROUGH THE AREA. SNOW LEVELS WILL INITIALLY BE AROUND 6500-7500 FEET WEDNESDAY AFTERNOON...THEN GRADUALLY FALL TO BETWEEN 4000-4500 FEET LATE THURSDAY. SNOW LEVELS MAY LOCALLY LOWER DOWN TO 3500 FEET IN HEAVIER SHOWERS. THE SAN BERNARDINO MOUNTAINS ARE LIKELY TO SEE THE MOST SNOWFALL...WITH TOTAL SNOW AMOUNTS OF 6 TO 8 INCHES...LOCALLY UP TO 10 INCHES ON THE HIGHEST PEAKS. THE RIVERSIDE AND SAN DIEGO COUNTY MOUNTAINS WILL LIKELY SEE TOTAL SNOWFALL OF AROUND 2 TO 6 INCHES OVER THE HIGHEST ELEVATIONS. CAZ055-122200- /O.CAN.KSGX.WS.W.0009.121213T0000Z-121214T0000Z/ /O.EXB.KSGX.WW.Y.0013.121213T0000Z-121214T0000Z/ SAN BERNARDINO COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE... BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE... FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT... I-15 AT 3500 FEET...LAKE ARROWHEAD...MOUNT BALDY... MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...RUNNING SPRINGS... TWIN PEAKS...WRIGHTWOOD 325 AM PST WED DEC 12 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST THURSDAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * SNOW LEVELS...7000 FEET...DROPPING TO 5000 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...THIS AFTERNOON THROUGH LATE THURSDAY NIGHT. * SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 6000 FEET...AND A DUSTING TO 4 INCHES BETWEEN 4000 AND 6000 FEET. ISOLATED AMOUNTS TO AROUND 10 INCHES AT THE HIGHEST PEAKS. * WINDS...WEST TO SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 40 MPH THROUGH THIS EVENING...BECOMING SOUTH 10 MPH WITH GUSTS TO 20 MPH OVERNIGHT. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN SNOW...BLOWING SNOW...AND FOG. * IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO LATE FRIDAY MORNING. THERE IS THE POTENTIAL FOR SOME ADDITIONAL LIGHT SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ CAZ058-122200- /O.CON.KSGX.WW.Y.0013.121213T0600Z-121214T1200Z/ SAN DIEGO COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...CUYAMACA...JULIAN... MOUNT LAGUNA 325 AM PST WED DEC 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 AM PST FRIDAY... * SNOW LEVELS...7000 FEET...DROPPING TO 5000 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...LATE WEDNESDAY EVENING THROUGH LATE THURSDAY NIGHT. * SNOW ACCUMULATIONS...2 TO 6 INCHES ABOVE 5000 FEET...AND A DUSTING TO 2 INCHES BETWEEN 4000 AND 5000 FEET. * WINDS...WEST TO SOUTHWEST WINDS 15 TO 25 MPH...WITH GUSTS UP TO 40 MPH THIS EVENING...BECOMING WEST 10 TO 15 MPH...WITH GUSTS UP TO 30 MPH TONIGHT. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN SNOW...BLOWING SNOW...AND FOG. * IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO LATE FRIDAY MORNING. THERE IS THE POTENTIAL FOR SOME ADDITIONAL LIGHT SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ CAZ056-122200- /O.CON.KSGX.WW.Y.0013.121213T0600Z-121214T0000Z/ RIVERSIDE COUNTY MOUNTAINS- INCLUDING THE FOLLOWING LOCATIONS...IDYLLWILD...PINE COVE... VISTA GRANDE 325 AM PST WED DEC 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST THURSDAY... * SNOW LEVELS...7000 FEET...DROPPING TO 5000 FEET BY EARLY THURSDAY MORNING...THEN DOWN TO 4000 FEET BY THURSDAY EVENING. * TIMING...LATE WEDNESDAY EVENING THROUGH EARLY THURSDAY AFTERNOON. * SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 6000 FEET...2 TO 4 INCHES BETWEEN 5000 AND 6000 FEET...AND A DUSTING TO 1 INCH DOWN TO 4000 FEET. LOCALLY HIGHER AMOUNTS POSSIBLE ABOVE 6000 FEET. * WINDS...WEST TO SOUTHWEST WINDS 15 TO 25 MPH...WITH GUSTS UP TO 40 MPH THIS EVENING...BECOMING WEST 10 TO 15 MPH...WITH GUSTS OF 25 MPH TONIGHT. * VISIBILITY...LOCALLY DOWN TO A MILE OR LESS IN SNOW...BLOWING SNOW...AND FOG. * IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS. * OUTLOOK...SOME LINGERING LIGHT SNOW SHOWERS MAY CONTINUE INTO LATE FRIDAY MORNING. THERE IS THE POTENTIAL FOR SOME ADDITIONAL LIGHT SNOW FRIDAY NIGHT AND SUNDAY DUE TO SOME DISTURBANCES THAT MAY MOVE THROUGH THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ SS
The office that day
Everything else NWS San Diego, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 11, 1:13 PM PST | Wind Advisory | SGX | San Bernardino | 33 hr |
| Dec 11, 1:13 PM PST | Winter Weather Advisory | SGX | Riverside, San Bernardino, San Diego | 56 hr |
Nearby
Winter Storm Warnings in California, 2012Every winter storm warning in 2012
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.