Alert archive / California / Winter Storm Warnings in 2012
Winter Storm Warning 4, NWS Los Angeles, CA
NWS Los Angeles, CA issued this winter storm warning at Apr 12, 2012, 4:43 AM PDT. It took effect at Apr 13, 2012, 12:00 AM PDT. It was in force for 27 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 12, 2012, 4:43 AM PDT (11:43 UTC)
- In effect from
- Apr 13, 2012, 12:00 AM PDT
- Expired
- Apr 14, 2012, 3:00 AM PDT
- In force
- 27 hr
- Issued by
- NWS Los Angeles, CA
The text
As transmitted, in the capitals the NWS used until 2016.
279 WWUS46 KLOX 121143 WSWLOX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 443 AM PDT THU APR 12 2012 ...A LATE SEASON STORM WILL BRING SNOW AND STRONG WINDS TO THE MOUNTAINS TONIGHT THROUGH FRIDAY NIGHT... ...SNOW MAY CREATE TRAVEL DIFFICULTIES ACROSS THE INTERSTATE 5 CORRIDOR FOR FRIDAY EVENING COMMUTERS... .A COLD PACIFIC STORM SYSTEM WILL APPROACH THE WEST COAST TODAY AND TONIGHT...THEN PUSH ACROSS SOUTHERN CALIFORNIA FRIDAY AND FRIDAY NIGHT. THIS SYSTEM WILL BRING SNOW AND STRONG WINDS TO THE MOUNTAINS. RAIN AND SNOW WILL DEVELOP ACROSS THE MOUNTAINS OF SANTA BARBARA COUNTY THIS EVENING...WITH PRECIPITATION OVERSPREADING VENTURA AND LOS ANGELES COUNTIES TONIGHT. RAIN AND SNOW WILL LIKELY BE HEAVY AT TIMES...ESPECIALLY LATE TONIGHT AND FRIDAY. STEADY RAIN AND SNOW WILL TURN TO SHOWERS FRIDAY NIGHT. THERE IS A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY AND EARLY FRIDAY NIGHT. SNOW LEVELS WILL AVERAGE 4500 T0 5500 FEET TONIGHT AND EARLY FRIDAY...THEN LOWER TO BETWEEN 3500 AND 4500 FEET BY FRIDAY NIGHT. ACCUMULATING SNOW WILL LIKELY AFFECT INTERSTATE 5 OVER THE GRAPEVINE DURING THE BUSY FRIDAY EVENING COMMUTE. IN ADDITION TO THE SNOW...STRONG SOUTH TO SOUTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 55 MPH ARE EXPECTED TO DEVELOP LATE TONIGHT AND FRIDAY...THEN WINDS WILL SHIFT TO NORTHWEST FRIDAY NIGHT. THE GUSTY WINDS WILL CREATE BLOWING AND DRIFTING SNOW...WHICH WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN THE MOUNTAINS. DRIVING CONDITIONS MAY BECOME TREACHEROUS IN THE MOUNTAINS...AND IF YOU MUST TRAVEL INTO OR THROUGH THE MOUNTAINS TONIGHT THROUGH FRIDAY NIGHT...CHECK THE LATEST ROAD REPORTS. CAZ053-054-122130- /O.NEW.KLOX.WS.W.0004.120413T0700Z-120414T1000Z/ VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON... MOUNT WILSON...SANDBERG 443 AM PDT THU APR 12 2012 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 AM PDT SATURDAY... THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND STRONG WINDS...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 AM PDT SATURDAY. * TIMING...PRECIPITATION WILL OVERSPREAD THE MOUNTAINS TONIGHT...BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY...THEN TURN TO SHOWERS FRIDAY NIGHT. * SNOW LEVELS...SNOW LEVELS WILL AVERAGE 4500 TO 5500 FEET TONIGHT AND FRIDAY MORNING...THEN FALL TO BETWEEN 3500 AND 4500 FEET LATE FRIDAY AND FRIDAY NIGHT. * SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 8 TO 14 INCHES ARE EXPECTED ABOVE 5500 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 55 MPH LATE TONIGHT...THEN CONTINUE ON FRIDAY...BEFORE SHIFTING TO NORTHWEST LATE FRIDAY. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS LATE TONIGHT THROUGH FRIDAY NIGHT. SNOW WILL LIKELY IMPACT TRAVEL THROUGH THE INTERSTATE 5 CORRIDOR BY FRIDAY EVENING. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW .SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...CHECK THE LATEST ROAD REPORTS...AND KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ052-122130- /O.NEW.KLOX.WW.Y.0008.120413T0400Z-120414T0400Z/ SANTA BARBARA COUNTY MOUNTAINS- INCLUDING THE CITIES OF...SAN MARCOS PASS... SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA 443 AM PDT THU APR 12 2012 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 PM PDT FRIDAY... THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 9 PM PDT FRIDAY. * TIMING...PRECIPITATION WILL OVERSPREAD THE MOUNTAINS THIS EVENING...BECOME HEAVY AT TIMES LATE TONIGHT AND FRIDAY...THEN TURN TO SHOWERS FRIDAY EVENING. * SNOW LEVELS...SNOW LEVELS WILL AVERAGE 4500 TO 5500 FEET TONIGHT AND FRIDAY MORNING...THEN FALL TO BETWEEN 3500 AND 4500 FEET LATE FRIDAY. * SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED ABOVE 5000 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 50 MPH TONIGHT...THEN CONTINUE ON FRIDAY...BEFORE SHIFTING TO NORTHWEST FRIDAY AFTERNOON. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO IN SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. BE PREPARED FOR SNOW COVERED ROADS AND USE CAUTION WHILE DRIVING. && $$ DB/CAK
6 follow-up statements
864 WWUS46 KLOX 122107 WSWLOX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 207 PM PDT THU APR 12 2012 ...A LATE SEASON STORM WILL BRING SNOW AND STRONG WINDS TO THE MOUNTAINS TONIGHT THROUGH FRIDAY NIGHT... ...SNOW MAY CREATE TRAVEL HAZARDS ACROSS THE INTERSTATE 5 CORRIDOR FOR FRIDAY EVENING COMMUTERS... .A COLD PACIFIC STORM SYSTEM APPROACHING THE WEST COAST WILL BRING SNOW AND STRONG WINDS TO THE MOUNTAINS TONIGHT THROUGH FRIDAY NIGHT. RAIN AND SNOW WILL DEVELOP ACROSS THE MOUNTAINS OF SANTA BARBARA COUNTY THIS EVENING...WITH PRECIPITATION SPREADING OVER VENTURA AND LOS ANGELES COUNTIES TONIGHT. RAIN AND SNOW WILL LIKELY BE HEAVY AT TIMES...ESPECIALLY LATE TONIGHT AND FRIDAY. STEADY RAIN AND SNOW WILL TURN TO SHOWERS FRIDAY NIGHT. A SLIGHT CHANCE OF THUNDERSTORMS WILL AFFECT THE AREA FRIDAY AND FRIDAY NIGHT. SNOW LEVELS WILL FALL TO 5000 FEET BY EARLY FRIDAY...THEN LOWER TO NEAR 3500 FEET BY FRIDAY NIGHT. ACCUMULATING SNOW AND BLOWING SNOW WILL LIKELY AFFECT INTERSTATE 5 OVER THE GRAPEVINE DURING THE BUSY FRIDAY EVENING COMMUTE. IN ADDITION TO THE SNOW...STRONG SOUTH TO SOUTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 55 MPH ARE EXPECTED TO DEVELOP LATE TONIGHT AND FRIDAY. THE WINDS WILL SHIFT TO NORTHWEST FRIDAY NIGHT WITH GUSTS UP TO 45 MPH. THE GUSTY WINDS WILL CREATE BLOWING AND DRIFTING SNOW... WHICH WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN THE MOUNTAINS. DRIVING CONDITIONS MAY BECOME TREACHEROUS AND IF YOU MUST TRAVEL INTO OR THROUGH THE MOUNTAINS TONIGHT THROUGH FRIDAY NIGHT...CHECK THE LATEST ROAD REPORTS. CAZ053-054-131200- /O.CON.KLOX.WS.W.0004.120413T0700Z-120414T1000Z/ VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON... MOUNT WILSON...SANDBERG 207 PM PDT THU APR 12 2012 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 3 AM PDT SATURDAY... * TIMING...PRECIPITATION WILL OVERSPREAD THE MOUNTAINS TONIGHT...BECOMING HEAVY AT TIMES LATE TONIGHT AND FRIDAY. SNOW SHOWERS WILL CONTINUE FRIDAY NIGHT INTO EARLY SATURDAY. * SNOW LEVELS...SNOW LEVELS WILL AVERAGE 4500 TO 5000 FEET TONIGHT AND FRIDAY MORNING...THEN FALL TO BETWEEN 3500 TO 4000 FEET LATE FRIDAY AND FRIDAY NIGHT. * SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 8 TO 14 INCHES ARE EXPECTED ABOVE 5500 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 55 MPH LATE TONIGHT...THEN CONTINUE ON FRIDAY...BEFORE SHIFTING TO THE NORTHWEST WITH GUSTS TO 45 MPH LATE FRIDAY. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS LATE TONIGHT THROUGH FRIDAY NIGHT. SNOW WILL LIKELY IMPACT TRAVEL THROUGH THE INTERSTATE 5 CORRIDOR BY FRIDAY EVENING. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW .SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...CHECK THE LATEST ROAD REPORTS...AND KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ052-131200- /O.CON.KLOX.WW.Y.0008.120413T0400Z-120414T0400Z/ SANTA BARBARA COUNTY MOUNTAINS- INCLUDING THE CITIES OF...SAN MARCOS PASS... SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA 207 PM PDT THU APR 12 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 9 PM PDT FRIDAY... * TIMING...PRECIPITATION WILL OVERSPREAD THE MOUNTAINS THIS EVENING...BECOMING HEAVY AT TIMES LATE TONIGHT AND FRIDAY. SNOW SHOWERS WILL CONTINUE THROUGH FRIDAY EVENING. * SNOW LEVELS...SNOW LEVELS WILL AVERAGE 4500 TO 5000 FEET TONIGHT AND FRIDAY MORNING...THEN FALL TO BETWEEN 3500 TO 4000 FEET LATE FRIDAY. * SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED ABOVE 5000 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 50 MPH TONIGHT...THEN CONTINUE ON FRIDAY...BEFORE SHIFTING TO THE NORTHWEST WITH GUSTS TO 45 MPH FRIDAY EVENING. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO IN SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. BE PREPARED FOR SNOW COVERED ROADS AND USE CAUTION WHILE DRIVING. && $$
175 WWUS46 KLOX 130715 WSWLOX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 1215 AM PDT FRI APR 13 2012 ...A LATE SEASON STORM WILL BRING SNOW AND STRONG WINDS TO THE MOUNTAINS THROUGH TONIGHT... ...SNOW MAY CREATE TRAVEL HAZARDS ACROSS THE INTERSTATE 5 CORRIDOR FOR COMMUTERS THIS EVENING... .A COLD PACIFIC STORM SYSTEM WILL BRING SNOW AND STRONG WINDS TO THE MOUNTAINS THROUGH TONIGHT. RAIN AND SNOW HAS ALREADY BEGUN ACROSS THE MOUNTAINS OF SANTA BARBARA AND VENTURA COUNTIES EARLY THIS MORNING...AND WILL SOON DEVELOP ACROSS THE LOS ANGELES COUNTY MOUNTAINS. RAIN AND SNOW WILL LIKELY BE HEAVY AT TIMES...ESPECIALLY LATE THIS MORNING THROUGH THE AFTERNOON HOURS. STEADY RAIN AND SNOW WILL TURN TO SHOWERS TONIGHT. ISOLATED THUNDERSTORMS WILL AFFECT THE AREA THROUGH TONIGHT. SNOW LEVELS WILL FALL TO 5000 FEET EARLY THIS MORNING...THEN LOWER TO NEAR 3500 FEET BY TONIGHT. ACCUMULATING SNOW AND BLOWING SNOW WILL LIKELY AFFECT INTERSTATE 5 OVER THE GRAPEVINE DURING THE BUSY EVENING COMMUTE. IN ADDITION TO THE SNOW...STRONG SOUTH TO SOUTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 55 MPH ARE EXPECTED TO DEVELOP TODAY. THE WINDS WILL SHIFT TO NORTHWEST TONIGHT WITH GUSTS UP TO 45 MPH. THE GUSTY WINDS WILL CREATE BLOWING AND DRIFTING SNOW... WHICH WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN THE MOUNTAINS. DRIVING CONDITIONS MAY BECOME TREACHEROUS AND IF YOU MUST TRAVEL INTO OR THROUGH THE MOUNTAINS THIS MORNING THROUGH TONIGHT...CHECK THE LATEST ROAD REPORTS. CAZ053-054-131600- /O.CON.KLOX.WS.W.0004.000000T0000Z-120414T1000Z/ VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON... MOUNT WILSON...SANDBERG 1215 AM PDT FRI APR 13 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SATURDAY... * TIMING...PRECIPITATION WILL OVERSPREAD THE MOUNTAINS THIS MORNING...BECOMING HEAVY AT TIMES...THEN TURN TO SHOWERS THIS EVENING. SNOW SHOWERS WILL CONTINUE TONIGHT INTO EARLY SATURDAY. * SNOW LEVELS...SNOW LEVELS WILL AVERAGE 4500 TO 5000 FEET THIS MORNING...THEN FALL TO BETWEEN 3500 AND 4000 FEET THIS EVENING THROUGH THE TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 8 TO 14 INCHES ARE EXPECTED ABOVE 5500 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 55 MPH THIS MORNING...THEN CONTINUE THROUGH THIS EVENING...BEFORE SHIFTING TO THE NORTHWEST TONIGHT. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS THROUGH TONIGHT. SNOW WILL LIKELY IMPACT TRAVEL THROUGH THE INTERSTATE 5 CORRIDOR BY THIS EVENING. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW .SIGNIFICANT AMOUNTS OF SNOW WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...CHECK THE LATEST ROAD REPORTS...AND KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ052-131600- /O.CON.KLOX.WW.Y.0008.000000T0000Z-120414T0400Z/ SANTA BARBARA COUNTY MOUNTAINS- INCLUDING THE CITIES OF...SAN MARCOS PASS... SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA 1215 AM PDT FRI APR 13 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT FRIDAY... * TIMING...RAIN AND SNOW...HEAVY AT TIMES...WILL TURN TO SHOWERS THIS AFTERNOON. SNOW SHOWERS WILL CONTINUE THROUGH THIS EVENING. * SNOW LEVELS...SNOW LEVELS WILL AVERAGE 4500 TO 5000 FEET THIS MORNING...THEN FALL TO BETWEEN 3500 AND 4000 FEET TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED ABOVE 5000 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 50 MPH TODAY...BEFORE SHIFTING TO THE NORTHWEST WITH GUSTS TO 45 MPH THIS EVENING. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO IN SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. BE PREPARED FOR SNOW COVERED ROADS AND USE CAUTION WHILE DRIVING. && $$ KAPLAN/DB
036 WWUS46 KLOX 131555 WSWLOX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 855 AM PDT FRI APR 13 2012 ...A LATE SEASON STORM WILL BRING SNOW AND STRONG WINDS TO THE MOUNTAINS THROUGH TONIGHT... ...SNOW MAY CREATE TRAVEL HAZARDS ACROSS THE INTERSTATE 5 CORRIDOR FOR COMMUTERS THIS EVENING... .A COLD PACIFIC STORM SYSTEM WILL BRING SNOW AND STRONG WINDS TO THE MOUNTAINS THROUGH TONIGHT. RAIN AND SNOW WILL LIKELY BE HEAVY AT TIMES...ESPECIALLY LATE THIS MORNING THROUGH THE AFTERNOON HOURS. STEADY RAIN AND SNOW WILL TURN TO SHOWERS TONIGHT. ISOLATED THUNDERSTORMS WILL AFFECT THE AREA THROUGH TONIGHT. SNOW LEVELS WILL FALL TO 5000 FEET EARLY THIS MORNING...THEN LOWER TO NEAR 3500 FEET BY TONIGHT. ACCUMULATING SNOW AND BLOWING SNOW WILL LIKELY AFFECT INTERSTATE 5 OVER THE GRAPEVINE DURING THE BUSY EVENING COMMUTE. IN ADDITION TO THE SNOW...STRONG SOUTH TO SOUTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 55 MPH ARE EXPECTED TO DEVELOP TODAY. THE WINDS WILL SHIFT TO NORTHWEST TONIGHT WITH GUSTS UP TO 45 MPH. THE GUSTY WINDS WILL CREATE BLOWING AND DRIFTING SNOW... WHICH WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN THE MOUNTAINS. DRIVING CONDITIONS MAY BECOME TREACHEROUS AND IF YOU MUST TRAVEL INTO OR THROUGH THE MOUNTAINS THIS MORNING THROUGH TONIGHT...CHECK THE LATEST ROAD REPORTS. CAZ053-054-140000- /O.CON.KLOX.WS.W.0004.000000T0000Z-120414T1000Z/ VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON... MOUNT WILSON...SANDBERG 855 AM PDT FRI APR 13 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SATURDAY... * TIMING...PRECIPITATION HEAVY AT TIMES THIS MORNING...THEN TURN TO SHOWERS THIS EVENING. SNOW SHOWERS WILL CONTINUE TONIGHT INTO EARLY SATURDAY. * SNOW LEVELS...SNOW LEVELS WILL AVERAGE 4500 TO 5000 FEET THIS MORNING...THEN FALL TO BETWEEN 3500 AND 4000 FEET THIS EVENING THROUGH THE TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 8 TO 14 INCHES ARE EXPECTED ABOVE 5500 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 55 MPH THIS MORNING...THEN CONTINUE THROUGH THIS EVENING...BEFORE SHIFTING TO THE NORTHWEST TONIGHT. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS THROUGH TONIGHT. SNOW WILL LIKELY IMPACT TRAVEL THROUGH THE INTERSTATE 5 CORRIDOR BY THIS EVENING. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW && $$ CAZ052-140000- /O.CON.KLOX.WW.Y.0008.000000T0000Z-120414T0400Z/ SANTA BARBARA COUNTY MOUNTAINS- INCLUDING THE CITIES OF...SAN MARCOS PASS... SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA 855 AM PDT FRI APR 13 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * TIMING...RAIN AND SNOW...HEAVY AT TIMES...WILL TURN TO SHOWERS THIS AFTERNOON. SNOW SHOWERS WILL CONTINUE THROUGH THIS EVENING. * SNOW LEVELS...SNOW LEVELS WILL AVERAGE 4500 TO 5000 FEET THIS MORNING...THEN FALL TO BETWEEN 3500 AND 4000 FEET TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED ABOVE 5000 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS TO 50 MPH TODAY...BEFORE SHIFTING TO THE NORTHWEST WITH GUSTS TO 45 MPH THIS EVENING. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO IN SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. BE PREPARED FOR SNOW COVERED ROADS AND USE CAUTION WHILE DRIVING. && $$
275 WWUS46 KLOX 132359 WSWLOX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 459 PM PDT FRI APR 13 2012 ...SCATTERED SNOW SHOWERS AND GUSTY WINDS WILL CONTINUE OVER THE MOUNTAINS THROUGH TONIGHT... ...SNOW MAY CREATE TRAVEL HAZARDS ACROSS THE INTERSTATE 5 CORRIDOR FOR COMMUTERS THIS EVENING... .A COLD PACIFIC STORM SYSTEM WILL CONTINUE TO BRING SCATTERED RAIN AND SNOW SHOWERS ALONG WITH GUSTY WINDS TO THE MOUNTAINS THROUGH TONIGHT. ISOLATED THUNDERSTORMS WILL ALSO AFFECT THE AREA THROUGH TONIGHT. SNOW LEVELS WILL LOWER TO NEAR 3500 FEET BY TONIGHT. ACCUMULATING SNOW AND BLOWING SNOW WILL LIKELY AFFECT INTERSTATE 5 OVER THE GRAPEVINE DURING THE BUSY EVENING COMMUTE. IN ADDITION TO THE SNOW...SOUTH TO SOUTHWEST WINDS OF 25 TO 35 MPH ARE EXPECTED THROUGH EARLY EVENING...THEN SHIFT TO NORTHWEST TONIGHT WITH GUSTS UP TO 45 MPH. THE GUSTY WINDS WILL CREATE BLOWING AND DRIFTING SNOW... WHICH WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN THE MOUNTAINS. DRIVING CONDITIONS MAY BECOME TREACHEROUS AND IF YOU MUST TRAVEL INTO OR THROUGH THE MOUNTAINS THROUGH TONIGHT...CHECK THE LATEST ROAD REPORTS. CAZ053-054-140800- /O.CON.KLOX.WS.W.0004.000000T0000Z-120414T1000Z/ VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON... MOUNT WILSON...SANDBERG 459 PM PDT FRI APR 13 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SATURDAY... * TIMING...SCATTERED SHOWERS WILL CONTINUE TONIGHT INTO EARLY SATURDAY. * SNOW LEVELS...SNOW LEVELS WILL FALL TO BETWEEN 3500 AND 4000 FEET THIS EVENING THROUGH THE TONIGHT. * SNOW ACCUMULATIONS...TOTAL STORM ACCUMULATIONS OF 8 TO 14 INCHES ARE EXPECTED ABOVE 5500 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...SOUTH TO SOUTHWEST WINDS 25 TO 35 MPH WILL CONTINUE THROUGH EARLY THIS EVENING...BEFORE SHIFTING TO THE NORTHWEST TONIGHT WITH GUSTS UP TO 45 MPH. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS THROUGH TONIGHT. SNOW WILL LIKELY IMPACT TRAVEL THROUGH THE INTERSTATE 5 CORRIDOR BY THIS EVENING. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW && $$ CAZ052-140400- /O.CON.KLOX.WW.Y.0008.000000T0000Z-120414T0400Z/ SANTA BARBARA COUNTY MOUNTAINS- INCLUDING THE CITIES OF...SAN MARCOS PASS... SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA 459 PM PDT FRI APR 13 2012 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING... * TIMING...SCATTERED SHOWERS WILL CONTINUE THROUGH THIS EVENING. * SNOW LEVELS...SNOW LEVELS WILL FALL TO BETWEEN 3500 AND 4000 FEET BY EARLY TONIGHT. * SNOW ACCUMULATIONS...TOTAL STORM ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED ABOVE 5000 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...AREAS OF NORTHWEST WINDS 25 TO 35 MPH WITH LOCAL GUSTS TO 45 MPH CAN BE EXPECTED THROUGH THIS EVENING. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO IN SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. BE PREPARED FOR SNOW COVERED ROADS AND USE CAUTION WHILE DRIVING. && $$ SIRARD
374 WWUS46 KLOX 140341 WSWLOX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 841 PM PDT FRI APR 13 2012 ...SCATTERED SNOW SHOWERS AND GUSTY WINDS WILL CONTINUE OVER THE MOUNTAINS THROUGH TONIGHT... ...SNOW MAY CREATE TRAVEL HAZARDS ACROSS THE INTERSTATE 5 CORRIDOR FOR COMMUTERS OVERNIGHT... .A COLD PACIFIC STORM SYSTEM WILL CONTINUE TO BRING SCATTERED RAIN AND SNOW SHOWERS ALONG WITH GUSTY WINDS TO THE MOUNTAINS THROUGH TONIGHT. ISOLATED THUNDERSTORMS WILL ALSO AFFECT THE AREA THROUGH THIS EVENING. SNOW LEVELS WILL BE NEAR 3500 FEET TONIGHT. ACCUMULATING SNOW AND BLOWING SNOW WILL LIKELY AFFECT INTERSTATE 5 OVER THE GRAPEVINE. IN ADDITION TO THE SNOW...NORTHWEST WINDS OF 25 TO 35 MPH ARE EXPECTED TONIGHT WITH GUSTS UP TO 45 MPH. THE GUSTY WINDS WILL CREATE BLOWING AND DRIFTING SNOW... WHICH WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN THE MOUNTAINS. DRIVING CONDITIONS MAY BECOME TREACHEROUS AND IF YOU MUST TRAVEL INTO OR THROUGH THE MOUNTAINS THROUGH TONIGHT...CHECK THE LATEST ROAD REPORTS. CAZ053-054-141000- /O.CON.KLOX.WS.W.0004.000000T0000Z-120414T1000Z/ VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON... MOUNT WILSON...SANDBERG 841 PM PDT FRI APR 13 2012 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SATURDAY... * TIMING...SCATTERED SHOWERS WILL CONTINUE TONIGHT INTO EARLY SATURDAY. * SNOW LEVELS...SNOW LEVELS WILL FALL BE BETWEEN 3500 AND 4000 FEET THROUGH TONIGHT. * SNOW ACCUMULATIONS...TOTAL STORM ACCUMULATIONS OF 8 TO 14 INCHES ARE EXPECTED ABOVE 5500 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...NORTHWEST WINDS 25 TO 35 MPH WILL CONTINUE THROUGH TONIGHT WITH GUSTS UP TO 45 MPH. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS THROUGH TONIGHT. SNOW WILL LIKELY IMPACT TRAVEL THROUGH THE INTERSTATE 5 CORRIDOR BY THIS EVENING. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW && $$ CAZ052-141000- /O.EXT.KLOX.WW.Y.0008.000000T0000Z-120414T1000Z/ SANTA BARBARA COUNTY MOUNTAINS- INCLUDING THE CITIES OF...SAN MARCOS PASS... SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA 841 PM PDT FRI APR 13 2012 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 AM PDT SATURDAY... * TIMING...SCATTERED SHOWERS WILL CONTINUE THROUGH TONIGHT. * SNOW LEVELS...SNOW LEVELS WILL BE BETWEEN 3500 AND 4000 FEET THROUGH TONIGHT. * SNOW ACCUMULATIONS...TOTAL STORM ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED ABOVE 5000 FEET...WITH LIGHTER ACCUMULATIONS AT LOWER ELEVATIONS. * WINDS...AREAS OF NORTHWEST WINDS 25 TO 35 MPH WITH LOCAL GUSTS TO 45 MPH CAN BE EXPECTED. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO IN SNOW AND BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE TRAVEL DIFFICULTIES. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. BE PREPARED FOR SNOW COVERED ROADS AND USE CAUTION WHILE DRIVING. && $$ SIRARD
319 WWUS46 KLOX 141023 WSWLOX URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 323 AM PDT SAT APR 14 2012 ...SCATTERED SNOW SHOWERS AND GUSTY WINDS WILL CONTINUE OVER THE MOUNTAINS THROUGH MID MORNING... ...SNOW WILL CONTINUE TO CREATE TRAVEL HAZARDS ACROSS THE INTERSTATE 5 CORRIDOR THIS MORNING... .A COLD PACIFIC STORM SYSTEM PASSED THROUGH THE REGION ON FRIDAY. BEHIND THE FRONT...SCATTERED SNOW SHOWERS WILL CONTINUE ACROSS THE NORTHERN SLOPES OF THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS THROUGH MID MORNING. THE COMBINATION OF SNOW SHOWERS AND GUSTY WINDS WILL MAKE FOR HAZARDOUS DRIVING CONDITIONS...ESPECIALLY ACROSS THE INTERSTATE 5 CORRIDOR. SNOW LEVELS WILL BE NEAR 3500 FEET THROUGH THIS MORNING WHICH SHOULD CONTINUE TO AFFECT THE GRAPEVINE ON THE TEJON PASS. IN ADDITION TO THE SNOW...NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS UP TO 45 MPH ARE EXPECTED TODAY. THE GUSTY WINDS WILL CREATE BLOWING AND DRIFTING SNOW...WHICH WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES IN THE MOUNTAINS. DRIVING CONDITIONS WILL REMAIN TREACHEROUS...AND IF YOU MUST TRAVEL INTO OR THROUGH THE MOUNTAINS THIS MORNING...CHECK THE LATEST ROAD REPORTS. CAZ053-054-141600- /O.EXP.KLOX.WS.W.0004.000000T0000Z-120414T1000Z/ /O.NEW.KLOX.WS.W.0005.120414T1023Z-120414T1600Z/ VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON... MOUNT WILSON...SANDBERG 323 AM PDT SAT APR 14 2012 ...WINTER STORM WARNING HAS BEEN EXTENDED UNTIL 9 AM PDT THIS MORNING... * TIMING...SCATTERED SHOWERS WILL CONTINUE THROUGH THIS MORNING. * SNOW LEVELS...SNOW LEVELS WILL BE BETWEEN 3500 AND 4000 FEET THROUGH MID MORNING. * SNOW ACCUMULATIONS...ADDITIONAL SNOW ACCUMULATIONS OF 1 TO 2 INCHES ARE EXPECTED ON THE NORTHERN SLOPES THIS MORNING. * WINDS...NORTHWEST WINDS 25 TO 35 MPH WITH GUSTS UP TO 45 MPH WILL CONTINUE THROUGH MID MORNING. * IMPACTS...HAZARDOUS DRIVING CONDITIONS ARE EXPECTED IN THE MOUNTAINS THIS MORNING. SNOW AND ICY ROADS WILL CONTINUE TO IMPACT TRAVEL THROUGH THE INTERSTATE 5 CORRIDOR. VISIBILITIES WILL LOCALLY DROP TO NEAR ZERO AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND GUSTY WINDS MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. && $$ CAZ052-141130- /O.EXP.KLOX.WW.Y.0008.000000T0000Z-120414T1000Z/ SANTA BARBARA COUNTY MOUNTAINS- INCLUDING THE CITIES OF...SAN MARCOS PASS... SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA 323 AM PDT SAT APR 14 2012 ...WINTER WEATHER ADVISORY HAS EXPIRED... MOST OF THE SNOW ACCUMULATION THIS MORNING WILL BE ACROSS THE NORTHERN SLOPES OF THE VENTURA AND LOS ANGELES COUNTY MOUNTAINS... WITH LITTLE ADDITIONAL ACCUMULATION EXPECTED OVER THE SANTA BARBARA COUNTY MOUNTAINS...THEREFORE THE WINTER WEATHER ADVISORY HAS BEEN ALLOWED TO EXPIRE. $$ KAPLAN
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Los Angeles, CA wrote its last area forecast discussion before this winter storm warning went out at Apr 12, 3:20 AM PDT, 1 hour 23 minutes earlier.
Area forecast discussion, Apr 12, 3:20 AM PDT, 1 hour 23 minutes before
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 320 AM PDT THU APR 12 2012 .SYNOPSIS... A COLD FRONT WILL MOVE ACROSS THE CENTRAL COAST THIS MORNING...THEN SPREAD ACROSS THE ENTIRE FORECAST AREA TONIGHT AND CONTINUE THROUGH FRIDAY. RAIN WILL TURN TO SHOWERS BY FRIDAY NIGHT INTO SATURDAY MORNING. HIGH PRESSURE WILL BUILD IN EARLY NEXT WEEK AND A WARMING TREND CAN BE EXPECTED THROUGH MUCH OF THE WEEK. && .SHORT TERM (TODAY-SAT)...LOW LEVEL MOISTURE STILL LINGERING ACROSS MUCH OF THE FORECAST AREA THIS MORNING. A FEW ISOLATED SHOWERS DEVELOPED LATE LAST EVENING ACROSS THE LOS ANGELES BASIN AND MOVED INTO THE SAN GABRIEL VALLEY BEFORE EXITING EAST INTO ORANGE COUNTY. FOR TODAY...ANOTHER UPPER LEVEL LOW SITUATED SEVERAL HUNDRED MILES WEST OF THE OREGON/WASHINGTON BORDER WILL CONTINUE TO SLIDE SOUTH TOWARDS NORTHERN CALIFORNIA BY FRIDAY MORNING. A DEEP TROUGH ASSOCIATED WITH THE LOW WILL DEVELOP A FRONTAL BOUNDARY BRINGING RAIN TO THE CENTRAL COAST LATER THIS MORNING. PRECIP CHANCES WILL INCREASE FOR AREAS N OF POINT CONCEPTION THIS AFTERNOON...WITH THE BULK OF RAIN AFFECTING SAN LUIS OBISPO COUNTY. BY THIS EVENING...RAIN WILL BEGIN TO PUSH INTO THE SANTA BARBARA AND VENTURA COUNTY AREAS...WITH LOS ANGELES COUNTY SEEING THE RAIN BEGIN LATE THIS EVENING INTO THE OVERNIGHT HOURS. GUSTY SW WINDS WILL INCREASE...ESPECIALLY ACROSS THE ANTELOPE VALLEY TODAY WHERE A WIND ADVISORY WILL BE ISSUED VALID LATE THIS MORNING THROUGH THIS EVENING WITH WIND GUSTS TO 50 MPH EXPECTED. BY FRIDAY...THE UPPER LEVEL LOW NEAR SAN FRANCISCO WILL TAKE ON A NEGATIVE TILT. GOOD DIFFLUENCE WILL SET UP OVER SOUTHERN AND CENTRAL CALIFORNIA BY FRIDAY MORNING WHICH WILL HELP TO ENHANCE RAIN INTENSITY AS THE JET WILL BE IN A FAVORABLE POSITION TO BRING GOOD DIVERGENCE ALOFT AS WELL. AS THE MAIN AXIS PUSHES ACROSS THE REGION...SOME INSTABILITY IN THE ATMOSPHERE COULD KICK OFF A FEW THUNDERSTORMS INITIALLY N OF POINT CONCEPTION AND ADJACENT COASTAL WATERS IN THE MORNING...THEN EVERYWHERE BY FRIDAY AFTERNOON THROUGH THE EVENING HOURS. ALTHOUGH THE CONVECTIVE PARAMETERS ARE NOT IMPRESSIVE...500 MB TEMPS WILL LOWER TO BETWEEN -31 DEGREES CELSIUS TO THE NORTH AND -26 OVER LA COUNTY. A WINTER STORM WATCH IS ALSO IN AFFECT FROM MIDNIGHT TONIGHT THROUGH EARLY SATURDAY MORNING FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS ABOVE 5000 FT. SNOW AMOUNTS WILL RANGE BETWEEN 8 TO 14 INCHES ABOVE 5000 FT. SNOW LEVEL WILL BE AROUND 4500 TO 5500 FT THIS THROUGH TONIGHT...THEN DROP TO 4000 TO 4500 FT ON FRIDAY. BEHIND THE FRONT FRIDAY EVENING...TEMPS WILL DROP SIGNIFICANTLY ACROSS THE MOUNTAINS WITH SNOW LEVELS LOWERING TO AROUND 3500 FT. ALTHOUGH MUCH OF THE RAIN WILL HAVE PUSHED EAST...THERE WILL BE CLOUDS BANKING UP ACROSS THE NORTHERN SLOPES OF THE VENTURA AND NORTHWESTERN PORTION OF LA COUNTY MOUNTAINS. THE INTERSTATE 5 CORRIDOR ACROSS THE GRAPEVINE AND TEJON SUMMIT COULD BE AFFECTED WITH HAZARDOUS DRIVING CONDITIONS. PROJECTED RAINFALL TOTALS WITH THIS STORM ARE GENERALLY EXPECTED TO RANGE BETWEEN 0.50 AND 1.00 INCHES FOR COASTAL AND VALLEY AREAS FOR THE MOUNTAINS...RAINFALL OF 1 TO 2 INCHES. SOUTHWEST WINDS AHEAD OF THE FRONT WILL HELP TO ENHANCE RAINFALL AMOUNTS ACROSS SW FACING SLOPES WHERE A FEW SITES ACROSS THE SANTA YNEZ AND VENTURA COUNTY MOUNTAINS RECEIVE A BIT MORE THAN 2 INCHES OF RAINFALL. BY SATURDAY...MOST OF THE PRECIPITATION WILL HAVE MOVED EAST OF THE AREA...EXCEPT THERE WILL CONTINUE TO BE A CHANCE OF SNOW SHOWERS ACROSS THE I-5 CORRIDOR THROUGH THE EARLY MORNING HOURS. OTHERWISE...EXPECT PARTLY CLOUDY SKIES...WITH MOSTLY CLOUDY SKIES ACROSS THE MOUNTAINS. AS FAR AS HIGH TEMPS OVER THE NEXT FEW DAYS...TEMPS SHOULD BE SIMILAR TO YESTERDAY FOR THE MOST PART...WITH A COOLING TREND THROUGH FRIDAY...AND SOME WARMING ON SATURDAY AS THE FRONT PUSHES TO THE EAST. .LONG TERM (SUN-WED)... MODELS CONTINUE TO BE IN PRETTY GOOD AGREEMENT FOR THE EXTENDED PERIOD. AN UPPER LEVEL RIDGE WILL BUILD OFF THE COAST SUN WHILE THE UPPER TROF LINGERS OVER THE GREAT BASIN. THE UPPER RIDGE WILL THEN BUILD INTO SRN CA FOR MON THEN PERSIST OVER THE AREA THRU WED. DRY WEATHER WITH A WARMING TREND CAN BE EXPECTED DURING THE PERIOD. WEAK OFFSHORE FLOW ON SUN AND MON WITH INCREASING THICKNESSES WILL HELP TO BOOST DAYTIME TEMPS WELL INTO THE 70S BY EARLY NEXT WEEK FOR THE VALLEYS AND SOME COASTAL AREAS. SKIES WILL BE MOSTLY CLEAR OVERALL THRU WED. && .AVIATION...12/1200Z && .LOX WATCHES/WARNINGS/ADVISORIES... WINTER STORM WATCH (SEE LAXWSWLOX). MARINE WEATHER STATEMENT (SEE LAXMWSLOX). SPECIAL WEATHER STATEMENT (SEE LAXSPSLOX). && PUBLIC...KAPLAN AVIATION...BRUNO WWW.WEATHER.GOV/LOSANGELES
Hazardous weather outlook, Apr 11, 6:30 PM PDT, 10 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 630 PM PDT WED APR 11 2012 CAZ034>041-044>046-051>054-059-087-088-547-548-121300- SAN LUIS OBISPO COUNTY CENTRAL COAST- SANTA BARBARA COUNTY CENTRAL COAST-SANTA YNEZ VALLEY- SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY- SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST- LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES- VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS- SANTA MONICA MOUNTAINS RECREATIONAL AREA- SAN LUIS OBISPO COUNTY MOUNTAINS- SANTA BARBARA COUNTY MOUNTAINS-VENTURA COUNTY MOUNTAINS- LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE- ANTELOPE VALLEY-CATALINA ISLAND-SANTA CLARITA VALLEY- LOS ANGELES COUNTY SAN FERNANDO VALLEY- LOS ANGELES COUNTY SAN GABRIEL VALLEY- 630 PM PDT WED APR 11 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED TONIGHT. .DAYS TWO THROUGH SEVEN... THURSDAY THROUGH TUESDAY RAIN AND MOUNTAIN SNOW WILL CREATE HAZARDOUS DRIVING CONDITIONS LATE THURSDAY INTO FRIDAY. GALE FORCE WINDS ARE POSSIBLE ACROSS THE OUTER WATERS ON FRIDAY NIGHT INTO SATURDAY WHICH IF THEY DEVELOP WILL CREATE A HAZARDOUS MARITIME ENVIRONMENT FOR SEAFARERS. * SPECIAL WEATHER STATEMENT..SEE WWUS86 KLOX - SPSLOX FOR DETAILS * * MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS * .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. GOMBERG
The office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 12, 3:29 AM PDT | Wind Advisory | LOX | 72 hr | |
| Apr 12, 4:43 AM PDT | Winter Weather Advisory | LOX | 46 hr | |
| Apr 12, 12:43 PM PDT | Areal Flood Advisory | LOX | San Luis Obispo | 88 min |
| Apr 12, 2:32 PM PDT | Gale Watch | LOX | 12 hr | |
| Apr 12, 3:12 PM PDT | Wind Advisory | LOX | Los Angeles | 23 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.