Alert archive / California / Winter Storm Warnings in 2010
Winter Storm Warning 21, NWS Sacramento, CA
NWS Sacramento, CA issued this winter storm warning at Dec 27, 2010, 3:01 PM PST. It took effect at Dec 28, 2010, 2:00 PM PST. It was in force for 26 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
- Dec 27, 2010, 3:01 PM PST (23:01 UTC)
- In effect from
- Dec 28, 2010, 2:00 PM PST
- Expired
- Dec 29, 2010, 4:00 PM PST
- In force
- 26 hr
- Issued by
- NWS Sacramento, CA
The text
As transmitted, in the capitals the NWS used until 2016.
456 WWUS46 KSTO 272301 WSWSTO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 301 PM PST MON DEC 27 2010 ...MORE HEAVY SNOW ON THE WAY FOR THE MOUNTAINS... .A STRONG POLAR JET STREAM WILL DRIVE ANOTHER LOW PRESSURE SYSTEM INTO NORTHERN CALIFORNIA TOMORROW NIGHT AND WEDNESDAY. SCATTERED SNOW SHOWERS WILL RETURN LATER TONIGHT OVER THE NORTHERN MOUNTAINS AND SNOW WILL BECOME STEADY IN THE MORNING OVER THE NORTHERN MOUNTAINS AND BY LATE AFTERNOON FOR THE WESTERN SLOPES OF THE NORTHERN SIERRA NEVADA. SNOW LEVELS WILL BEGIN NEAR 4000 FEET OVER THE NORTHERN MOUNTAINS TO NEAR 5000 FEET IN THE LASSEN PARK AREA AND NEAR 6000 FEET FOR THE NORTHERN SIERRA NEVADA. THEY WILL FALL TO NEAR 4000 FEET TOMORROW NIGHT NEAR LASSEN PARK AND 5000 FEET FOR THE NORTHERN SIERRA NEVADA. SNOW LEVELS WILL LOWER DURING THE DAY ON WEDNESDAY TO NEAR 1000 FEET OVER SHASTA COUNTY TO NEAR 2500 FEET FOR THE MOTHERLODE BUT NOT MUCH ACCUMULATION IS EXPECTED AT THOSE LOWER LEVELS. SOUTHWEST WIND GUSTS TO 60 MPH OVER HIGHER MOUNTAIN PASSES MAY CREATE WHITE-OUT CONDITIONS AT TIMES IN BLOWING SNOW... ESPECIALLY TOMORROW NIGHT INTO WEDNESDAY MORNING. SNOW WILL TAPER OFF TO SCATTERED SNOW SHOWERS DURING THE DAY ON WEDNESDAY. ICY ROADWAYS ARE LIKELY TO PERSIST INTO WEDNESDAY EVENING AND WEDNESDAY NIGHT. IF YOU PLAN TO TRAVEL IN THE MOUNTAINS TOMORROW OR WEDNESDAY... CHECK ROAD CONDITIONS BEFORE DEPARTING. CARRY TIRE CHAINS AND EXTRA CLOTHING. WIND CHILL READINGS NEAR ZERO ARE POSSIBLE BEHIND THE COLD FRONT WEDNESDAY NIGHT. CAZ068-281115- /O.UPG.KSTO.WS.A.0022.101228T2000Z-101230T0000Z/ /O.NEW.KSTO.WS.W.0021.101228T2200Z-101229T1800Z/ WESTERN PLUMAS COUNTY/LASSEN PARK- INCLUDING THE CITY OF...CHESTER 301 PM PST MON DEC 27 2010 ...WINTER STORM WARNING IN EFFECT FROM 2 PM TUESDAY TO 10 AM PST WEDNESDAY ABOVE 4500 FEET... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A WINTER STORM WARNING ABOVE 4500 FEET FOR HEAVY SNOW AND/OR BLOWING SNOW WHICH IS IN EFFECT FROM 2 PM TUESDAY TO 10 AM PST WEDNESDAY FOR WESTERN PLUMAS COUNTY AND LASSEN PARK. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING: SCATTERED SNOW SHOWERS MAY BEGIN LATE TONIGHT WITH STEADY SNOW EXPECTED BY TOMORROW AFTERNOON. PERIODS OF HEAVY SNOW ARE LIKELY TOMORROW NIGHT INTO WEDNESDAY MORNING. SNOW LEVELS... INITIALLY NEAR 5000 FEET IN LASSEN PARK... WILL FALL TO NEAR 2500 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: 1 TO 2 FEET OF NEW SNOW IS POSSIBLE ABOVE 7000 FEET...WITH 6 TO 12 INCHES ABOVE 4500 FEET BY WEDNESDAY AFTERNOON. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 50 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES TOMORROW EVENING THROUGH WEDNESDAY MORNING. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ069-281115- /O.UPG.KSTO.WS.A.0022.101228T2000Z-101230T0000Z/ /O.NEW.KSTO.WS.W.0021.101229T0000Z-101230T0000Z/ WEST SLOPE NORTHERN SIERRA NEVADA- 301 PM PST MON DEC 27 2010 ...WINTER STORM WARNING IN EFFECT FROM 4 PM TUESDAY TO 4 PM PST WEDNESDAY ABOVE 5000 FEET... ...WINTER STORM WATCH NO LONGER IN EFFECT... THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A WINTER STORM WARNING ABOVE 5000 FEET FOR HEAVY SNOW...AND/OR BLOWING SNOW...WHICH IS IN EFFECT FROM 4 PM TUESDAY TO 4 PM PST WEDNESDAY FOR THE WESTERN SLOPES OF THE NORTHERN SIERRA NEVADA. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING: SCATTERED SNOW SHOWERS WILL BEGIN LATE TOMORROW MORNING.STEADY SNOW IS EXPECTED BY TOMORROW AFTERNOON. PERIODS OF HEAVY SNOW ARE POSSIBLE TOMORROW EVENING... TOMORROW NIGHT AND WEDNESDAY MORNING. SNOW LEVELS... INITIALLY FROM 5000 FEET IN LASSEN PARK TO 6000 FEET ALONG THE WEST SLOPE OF THE SIERRA... WILL FALL TO 3000 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: 1 TO 2 FEET OF NEW SNOW IS POSSIBLE ABOVE 7000 FEET...WITH 6 TO 12 INCHES ABOVE 5000 FEET THROUGH WEDNESDAY AFTERNOON. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 60 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES TOMORROW EVENING INTO WEDNESDAY MORNING. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ013-014-063-281115- /O.NEW.KSTO.WW.Y.0041.101228T1800Z-101229T1200Z/ SHASTA LAKE AREA / NORTHERN SHASTA COUNTY- BURNEY BASIN / EASTERN SHASTA COUNTY- MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY- INCLUDING THE CITY OF...ALDER SPRINGS 301 PM PST MON DEC 27 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 4 AM PST WEDNESDAY ABOVE 4000 FEET... THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A WINTER WEATHER ADVISORY ABOVE 4000 FEET FOR SNOW WHICH IS IN EFFECT FROM 10 AM TUESDAY TO 4 AM PST WEDNESDAY. * TIMING: SCATTERED SNOW SHOWERS MAY BEGIN LATER TONIGHT WITH STEADY SNOW EXPECTED ON TUESDAY. PERIODS OF HEAVY SNOW ARE LIKELY TOMORROW EVENING WITH LINGERING SHOWERS INTO WEDNESDAY. SNOW LEVELS... INITIALLY NEAR 4000 FEET OVER THE SHASTA COUNTY MOUNTAINS AND NORTHERN COASTAL RANGE... WILL FALL TO BETWEEN 1000 TO 2500 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: A FOOT OR MORE OF NEW SNOW IS POSSIBLE ABOVE 7000 FEET...WITH 4 TO 7 INCHES ABOVE 4000 FEET BY WEDNESDAY MORNING. A COUPLE OF INCHES OF SNOW MAY FALL BETWEEN 2000 AND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 50 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES TOMORROW NIGHT. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
6 follow-up statements
021 WWUS46 KSTO 281220 WSWSTO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 420 AM PST TUE DEC 28 2010 ...MORE HEAVY SNOW ON THE WAY FOR THE MOUNTAINS... .A STRONG POLAR JET STREAM WILL DRIVE ANOTHER LOW PRESSURE SYSTEM INTO NORTHERN CALIFORNIA TONIGHT AND WEDNESDAY. SCATTERED SNOW SHOWERS WILL BECOME STEADY THIS MORNING OVER THE NORTHERN MOUNTAINS AND BY LATE AFTERNOON FOR THE WESTERN SLOPES OF THE NORTHERN SIERRA NEVADA. SNOW LEVELS WILL BEGIN NEAR 3500 FEET OVER THE NORTHERN MOUNTAINS TO NEAR 4500 FEET IN THE LASSEN PARK AREA AND NEAR 5500 FEET FOR THE NORTHERN SIERRA NEVADA. SNOW LEVELS WILL LOWER TOMORROW TO NEAR 1000 FEET OVER SHASTA COUNTY TO NEAR 2500 FEET FOR THE MOTHERLODE BUT NOT MUCH ACCUMULATION IS EXPECTED AT THOSE LOWER LEVELS. SOUTHWEST WIND GUSTS TO 70 MPH OVER HIGHER MOUNTAIN PASSES MAY CREATE WHITE-OUT CONDITIONS AT TIMES IN BLOWING SNOW... ESPECIALLY TONIGHT INTO WEDNESDAY MORNING. SNOW WILL TAPER OFF TO SCATTERED SNOW SHOWERS DURING THE DAY ON WEDNESDAY. ICY ROADWAYS ARE LIKELY TO PERSIST INTO WEDNESDAY EVENING AND WEDNESDAY NIGHT. IF YOU PLAN TO TRAVEL IN THE MOUNTAINS TOMORROW OR WEDNESDAY... CHECK ROAD CONDITIONS BEFORE DEPARTING. CARRY TIRE CHAINS AND EXTRA CLOTHING. WIND CHILL READINGS NEAR ZERO ARE POSSIBLE BEHIND THE COLD FRONT WEDNESDAY NIGHT. CAZ068-290100- /O.CON.KSTO.WS.W.0021.101228T2200Z-101229T1800Z/ WESTERN PLUMAS COUNTY/LASSEN PARK- INCLUDING THE CITY OF...CHESTER 420 AM PST TUE DEC 28 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 AM PST WEDNESDAY ABOVE 4500 FEET... A WINTER STORM WARNING ABOVE 4500 FEET REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 AM PST WEDNESDAY. * TIMING: SCATTERED SNOW SHOWERS BEGINNING THIS MORNING WITH STEADY SNOW EXPECTED BY THIS AFTERNOON. PERIODS OF HEAVY SNOW ARE LIKELY TONIGHT INTO WEDNESDAY MORNING. SNOW LEVELS... INITIALLY NEAR 4500 FEET IN LASSEN PARK... WILL FALL TO NEAR 2000 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: 1 TO 2 FEET OF NEW SNOW IS POSSIBLE ABOVE 7000 FEET...WITH 6 TO 12 INCHES ABOVE 4500 FEET BY WEDNESDAY AFTERNOON. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 60 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES THIS EVENING THROUGH WEDNESDAY MORNING. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ069-290100- /O.CON.KSTO.WS.W.0021.101229T0000Z-101230T0000Z/ WEST SLOPE NORTHERN SIERRA NEVADA- 420 AM PST TUE DEC 28 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST WEDNESDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST WEDNESDAY. * TIMING: SCATTERED SNOW SHOWERS BEGINNING THIS MORNING WITH STEADY SNOW EXPECTED BY THIS AFTERNOON. PERIODS OF HEAVY SNOW ARE POSSIBLE THIS EVENING...TONIGHT AND WEDNESDAY MORNING. SNOW LEVELS...INITIALLY FROM 4500 FEET IN LASSEN PARK TO 5000 FEET ALONG THE WEST SLOPE OF THE SIERRA... WILL FALL TO 3000 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: 1 TO 2 FEET OF NEW SNOW IS POSSIBLE ABOVE 7000 FEET...WITH 6 TO 12 INCHES ABOVE 5000 FEET THROUGH WEDNESDAY AFTERNOON. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 70 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES TOMORROW EVENING INTO WEDNESDAY MORNING. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ013-014-063-290100- /O.CON.KSTO.WW.Y.0041.101228T1800Z-101229T1200Z/ SHASTA LAKE AREA / NORTHERN SHASTA COUNTY- BURNEY BASIN / EASTERN SHASTA COUNTY- MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY- INCLUDING THE CITY OF...ALDER SPRINGS 420 AM PST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY ABOVE 4000 FEET... A WINTER WEATHER ADVISORY ABOVE 4000 FEET REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY. * TIMING: SCATTERED SNOW SHOWERS BEGINNING THIS MORNING WITH STEADY SNOW EXPECTED BY THIS AFTERNOON. PERIODS OF HEAVY SNOW ARE LIKELY THIS EVENING WITH LINGERING SHOWERS INTO WEDNESDAY. SNOW LEVELS... INITIALLY NEAR 4000 FEET OVER THE SHASTA COUNTY MOUNTAINS AND NORTHERN COASTAL RANGE... WILL FALL TO BETWEEN 1000 TO 2500 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: A FOOT OR MORE OF NEW SNOW IS POSSIBLE ABOVE 6000 FEET...WITH 4 TO 7 INCHES ABOVE 4000 FEET BY WEDNESDAY MORNING. A COUPLE OF INCHES OF SNOW MAY FALL BETWEEN 2000 AND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 60 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES TOMORROW NIGHT. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ JCLAPP
090 WWUS46 KSTO 281223 WSWSTO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 423 AM PST TUE DEC 28 2010 ...MORE HEAVY SNOW ON THE WAY FOR THE MOUNTAINS... .A STRONG POLAR JET STREAM WILL DRIVE ANOTHER LOW PRESSURE SYSTEM INTO NORTHERN CALIFORNIA TODAY AND WEDNESDAY. SCATTERED SNOW SHOWERS BECOMING STEADY THIS MORNING OVER THE NORTHERN MOUNTAINS AND BY LATE AFTERNOON FOR THE WESTERN SLOPES OF THE NORTHERN SIERRA NEVADA. SNOW LEVELS WILL BEGIN NEAR 3500 FEET OVER THE NORTHERN MOUNTAINS TO NEAR 4500 FEET IN THE LASSEN PARK AREA AND NEAR 5500 FEET FOR THE NORTHERN SIERRA NEVADA. SNOW LEVELS WILL LOWER TOMORROW TO NEAR 1000 FEET OVER SHASTA COUNTY TO NEAR 2500 FEET FOR THE MOTHERLODE BUT NOT MUCH ACCUMULATION IS EXPECTED AT THOSE LOWER LEVELS. SOUTHWEST WIND GUSTS TO 70 MPH OVER HIGHER MOUNTAIN PASSES MAY CREATE WHITE-OUT CONDITIONS AT TIMES IN BLOWING SNOW... ESPECIALLY TONIGHT INTO WEDNESDAY MORNING. SNOW WILL TAPER OFF TO SCATTERED SNOW SHOWERS DURING THE DAY ON WEDNESDAY. ICY ROADWAYS ARE LIKELY TO PERSIST INTO WEDNESDAY EVENING AND WEDNESDAY NIGHT. IF YOU PLAN TO TRAVEL IN THE MOUNTAINS TOMORROW OR WEDNESDAY... CHECK ROAD CONDITIONS BEFORE DEPARTING. CARRY TIRE CHAINS AND EXTRA CLOTHING. WIND CHILL READINGS NEAR ZERO ARE POSSIBLE BEHIND THE COLD FRONT WEDNESDAY NIGHT. CAZ068-290030- /O.CON.KSTO.WS.W.0021.101228T2200Z-101229T1800Z/ WESTERN PLUMAS COUNTY/LASSEN PARK- INCLUDING THE CITY OF...CHESTER 423 AM PST TUE DEC 28 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 AM PST WEDNESDAY ABOVE 4500 FEET... A WINTER STORM WARNING ABOVE 4500 FEET REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 AM PST WEDNESDAY. * TIMING: SCATTERED SNOW SHOWERS BEGINNING THIS MORNING WITH STEADY SNOW EXPECTED BY THIS AFTERNOON. PERIODS OF HEAVY SNOW ARE LIKELY TONIGHT INTO WEDNESDAY MORNING. SNOW LEVELS... INITIALLY NEAR 4500 FEET IN LASSEN PARK... WILL FALL TO NEAR 2000 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: 1 TO 2 FEET OF NEW SNOW IS POSSIBLE ABOVE 7000 FEET...WITH 6 TO 12 INCHES ABOVE 4500 FEET BY WEDNESDAY AFTERNOON. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 60 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES THIS EVENING THROUGH WEDNESDAY MORNING. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. 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. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ069-290030- /O.CON.KSTO.WS.W.0021.101229T0000Z-101230T0000Z/ WEST SLOPE NORTHERN SIERRA NEVADA- 423 AM PST TUE DEC 28 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST WEDNESDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM PST WEDNESDAY. * TIMING: SCATTERED SNOW SHOWERS BEGINNING THIS MORNING WITH STEADY SNOW EXPECTED BY THIS AFTERNOON. PERIODS OF HEAVY SNOW ARE POSSIBLE THIS EVENING...TONIGHT AND WEDNESDAY MORNING. SNOW LEVELS...INITIALLY FROM 4500 FEET IN LASSEN PARK TO 5000 FEET ALONG THE WEST SLOPE OF THE SIERRA... WILL FALL TO 3000 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: 1 TO 2 FEET OF NEW SNOW IS POSSIBLE ABOVE 7000 FEET...WITH 6 TO 12 INCHES ABOVE 5000 FEET THROUGH WEDNESDAY AFTERNOON. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 70 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES TOMORROW EVENING INTO WEDNESDAY MORNING. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ013-014-063-290030- /O.CON.KSTO.WW.Y.0041.101228T1800Z-101229T1200Z/ SHASTA LAKE AREA / NORTHERN SHASTA COUNTY- BURNEY BASIN / EASTERN SHASTA COUNTY- MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY- INCLUDING THE CITY OF...ALDER SPRINGS 423 AM PST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY ABOVE 4000 FEET... A WINTER WEATHER ADVISORY ABOVE 4000 FEET REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 4 AM PST WEDNESDAY. * TIMING: SCATTERED SNOW SHOWERS BEGINNING THIS MORNING WITH STEADY SNOW EXPECTED BY THIS AFTERNOON. PERIODS OF HEAVY SNOW ARE LIKELY THIS EVENING WITH LINGERING SHOWERS INTO WEDNESDAY. SNOW LEVELS... INITIALLY NEAR 4000 FEET OVER THE SHASTA COUNTY MOUNTAINS AND NORTHERN COASTAL RANGE... WILL FALL TO BETWEEN 1000 TO 2500 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT. * SNOWFALL: A FOOT OR MORE OF NEW SNOW IS POSSIBLE ABOVE 6000 FEET...WITH 4 TO 7 INCHES ABOVE 4000 FEET BY WEDNESDAY MORNING. A COUPLE OF INCHES OF SNOW MAY FALL BETWEEN 2000 AND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 60 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES TOMORROW NIGHT. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND CHILLS TOWARD THE END OF THE EVENT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
844 WWUS46 KSTO 282251 WSWSTO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 251 PM PST TUE DEC 28 2010 ...MORE HEAVY SNOW AND GUSTY WINDS ON THE WAY FOR THE MOUNTAINS... .A STRONG STORM SYSTEM WILL BRING HEAVY RAIN AND STRONG WINDS TO THE VALLEY AS WELL AS HEAVY SNOW AND STRONG WINDS TO THE MOUNTAINS TONIGHT THROUGH EARLY WEDNESDAY MORNING. CAZ068-291200- /O.CON.KSTO.WS.W.0021.000000T0000Z-101229T1800Z/ WESTERN PLUMAS COUNTY/LASSEN PARK- INCLUDING THE CITY OF...CHESTER 251 PM PST TUE DEC 28 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY ABOVE 4500 FEET... A WINTER STORM WARNING ABOVE 4500 FEET REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY FOR HEAVY SNOW AND BLOWING SNOW. * TIMING: SNOW IS EXPECTED OFF AND ON THROUGH WEDNESDAY AFTERNOON. HEAVIEST SNOW WILL BE LATE THIS EVENING INTO EARLY WEDNESDAY MORNING. SNOW LEVELS...INITIALLY NEAR 4500 FEET IN LASSEN PARK...WILL FALL TO NEAR 2000 FEET BY WEDNESDAY AFTERNOON. * SNOWFALL: 1 TO 2 FEET OF SNOW ABOVE 7000 FEET...6 TO 12 INCHES ABOVE 4500 FEET. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 60 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES THROUGH WEDNESDAY MORNING. * MAIN IMPACTS: HAZARDOUS TRAVELING WITH AREAS OF WHITE OUT CONDITIONS AT MOUNTAIN PASS LEVELS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. STRONG AND GUSTY WINDS WILL ALSO CAUSE BLOWING SNOW...WHICH MAY CAUSE PERIODS OF WHITE OUT CONDITIONS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ069-291200- /O.CON.KSTO.WS.W.0021.101229T0000Z-101230T0000Z/ WEST SLOPE NORTHERN SIERRA NEVADA- 251 PM PST TUE DEC 28 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST WEDNESDAY ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 4 PM PST WEDNESDAY FOR HEAVY SNOW AND BLOWING SNOW. * TIMING: SNOW OFF AND ON THROUGH WEDNESDAY. HEAVIEST SNOW WILL FALL LATE THIS EVENING INTO EARLY WEDNESDAY MORNING. SNOW LEVELS...INITIALLY AROUND 5000 FEET ALONG THE WEST SLOPE OF THE SIERRA... WILL FALL TO 3000 FEET BY WEDNESDAY AFTERNOON. * SNOWFALL: 1 TO 2 FEET ABOVE 7000 FEET...WITH 6 TO 12 INCHES ABOVE 5000 FEET. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 70 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS WITH WHITE OUT CONDITIONS AT MOUNTAIN PASS LEVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. STRONG AND GUSTY WINDS WILL ALSO CAUSE BLOWING SNOW...WHICH MAY CAUSE PERIODS OF WHITE OUT CONDITIONS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ013-014-063-291200- /O.CON.KSTO.WW.Y.0041.000000T0000Z-101229T1200Z/ SHASTA LAKE AREA / NORTHERN SHASTA COUNTY- BURNEY BASIN / EASTERN SHASTA COUNTY- MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY- INCLUDING THE CITY OF...ALDER SPRINGS 251 PM PST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY ABOVE 4000 FEET... A WINTER WEATHER ADVISORY ABOVE 4000 FEET REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY FOR SNOW AND BLOWING SNOW. * TIMING: PERIODS OF HEAVY SNOW ARE LIKELY THIS EVENING WITH LINGERING SHOWERS INTO WEDNESDAY. SNOW LEVELS... INITIALLY NEAR 4000 FEET OVER THE SHASTA COUNTY MOUNTAINS AND NORTHERN COASTAL RANGE... WILL FALL TO BETWEEN 1000 TO 2500 FEET BY WEDNESDAY AFTERNOON. * SNOWFALL: A FOOT OR MORE OF NEW SNOW IS POSSIBLE ABOVE 6000 FEET...WITH 4 TO 7 INCHES ABOVE 4000 FEET. A COUPLE OF INCHES OF SNOW MAY FALL BETWEEN 2000 AND 3000 FEET ON WEDNESDAY. * WINDS: SOUTHWEST WIND GUSTS TO 60 MPH ARE POSSIBLE ACROSS HIGHER MOUNTAIN PASSES TOMORROW NIGHT. * MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
246 WWUS46 KSTO 291130 WSWSTO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 330 AM PST WED DEC 29 2010 CAZ013-014-063-291230- /O.CAN.KSTO.WW.Y.0041.000000T0000Z-101229T1200Z/ SHASTA LAKE AREA / NORTHERN SHASTA COUNTY- BURNEY BASIN / EASTERN SHASTA COUNTY- MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY- INCLUDING THE CITY OF...ALDER SPRINGS 330 AM PST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS CANCELLED THE WINTER WEATHER ADVISORY. $$ CAZ068-291800- /O.CON.KSTO.WS.W.0021.000000T0000Z-101229T1800Z/ WESTERN PLUMAS COUNTY/LASSEN PARK- INCLUDING THE CITY OF...CHESTER 330 AM PST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING ABOVE 4500 FEET... A WINTER STORM WARNING ABOVE 4500 FEET REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING FOR WESTERN PLUMAS COUNTY AND THE LASSEN VOLCANIC NATIONAL PARK. * TIMING: SNOW SHOWERS WILL TAPER OFF ACROSS THE AREA THIS MORNING. * SNOWFALL: ADDITIONAL SNOWFALL ACCUMULATIONS OF UP TO 3 INCHES WILL BE POSSIBLE THIS MORNING. * WINDS: WEST WINDS 10 TO 20 MPH WITH LOCAL GUSTS TO AROUND 30 MPH AT THE HIGHER ELEVATIONS. * MAIN IMPACTS: HAZARDOUS TRAVEL WITH SNOW PACKED ROADS AT THE HIGHER ELEVATIONS. LOCAL AREAS OF BLOWING SNOW RESULTING IN REDUCED VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DIFFICULT. STRONG AND GUSTY WINDS WILL ALSO CAUSE BLOWING SNOW... WHICH MAY CAUSE PERIODS OF WHITE OUT CONDITIONS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ CAZ069-300000- /O.CON.KSTO.WS.W.0021.000000T0000Z-101230T0000Z/ WEST SLOPE NORTHERN SIERRA NEVADA- 330 AM PST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON FOR THE WEST SLOPES OF THE NORTHERN SIERRA NEVADA. * TIMING: HEAVY SNOW WILL END FROM THE NORTH EARLY THIS MORNING WITH NUMEROUS SNOW SHOWERS CONTINUING THROUGH THE DAY. * SNOWFALL: ADDITIONAL SNOWFALL ACCUMULATIONS OF 5 TO 10 INCHES WILL BE POSSIBLE ALONG THE CREST TODAY WITH 2 TO 4 INCHES OF ACCUMULATION POSSIBLE DOWN TO AROUND THE 5000 FOOT LEVEL. SNOW LEVELS WILL LOWER BELOW 4000 FEET THIS AFTERNOON. * WINDS: SOUTHWEST WIND 15 TO 25 MPH WITH GUSTS TO 40 MPH POSSIBLE ACROSS THE HIGHER MOUNTAIN PASSES. * MAIN IMPACTS: HAZARDOUS TRAVEL WITH SNOW PACKED ROADS AND WHITE OUT CONDITIONS THROUGH THE PASSES WITH BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DIFFICULT. STRONG AND GUSTY WINDS WILL ALSO CAUSE BLOWING SNOW... WHICH MAY CAUSE PERIODS OF WHITE OUT CONDITIONS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$
504 WWUS46 KSTO 291717 WSWSTO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 917 AM PST WED DEC 29 2010 CAZ068-291830- /O.CAN.KSTO.WS.W.0021.000000T0000Z-101229T1800Z/ WESTERN PLUMAS COUNTY/LASSEN PARK- INCLUDING THE CITY OF...CHESTER 917 AM PST WED DEC 29 2010 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS CANCELLED THE WINTER STORM WARNING. A FEW SNOW SHOWERS WILL BE POSSIBLE TODAY...BUT NOT SIGNIFICANT ACCUMULATIONS ARE EXPECTED...THUS THE WINTER STORM WARNING HAS BEEN ALLOWED TO EXPIRE. $$ CAZ069-300000- /O.CON.KSTO.WS.W.0021.000000T0000Z-101230T0000Z/ WEST SLOPE NORTHERN SIERRA NEVADA- 917 AM PST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON ABOVE 5000 FEET... A WINTER STORM WARNING ABOVE 5000 FEET REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. * TIMING: LOOK FOR DECREASING SNOW SHOWERS THROUGH THE DAY. * SNOWFALL: ADDITIONAL SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES WILL BE POSSIBLE ALONG THE CREST TODAY WITH AROUND AN INCH OF ACCUMULATION POSSIBLE DOWN TO AROUND THE 5000 FOOT LEVEL. SNOW LEVELS WILL LOWER BELOW 4000 FEET THIS AFTERNOON. * WINDS: SOUTHWEST WIND 15 TO 25 MPH WITH GUSTS TO 40 MPH POSSIBLE ACROSS THE HIGHER MOUNTAIN PASSES. * MAIN IMPACTS: HAZARDOUS TRAVEL WITH SNOW PACKED ROADS AND WHITEOUT CONDITIONS THROUGH THE PASSES WITH BLOWING AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DIFFICULT. STRONG AND GUSTY WINDS WILL ALSO CAUSE BLOWING SNOW... WHICH MAY CAUSE PERIODS OF WHITE OUT CONDITIONS. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$
419 WWUS46 KSTO 292359 WSWSTO URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 359 PM PST WED DEC 29 2010 CAZ069-300100- /O.EXP.KSTO.WS.W.0021.000000T0000Z-101230T0000Z/ WEST SLOPE NORTHERN SIERRA NEVADA- INCLUDING THE CITY OF...BLUE CANYON 359 PM PST WED DEC 29 2010 ...WINTER STORM WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON... THE WINTER STORM WARNING FOR THE WEST SLOPES OF THE SIERRA NEVADA WILL EXPIRE AT 4 PM PST THIS AFTERNOON. LIGHT SNOW SHOWERS WILL CONTINUE THROUGH THE EVENING HOURS OVER THE WEST SLOPES OF THE SIERRA NEVADA BUT NO SIGNIFICANT ADDITIONAL SNOWFALL ACCUMULATION IS EXPECTED. SNOWFALL FROM LAST NIGHTS WEATHER SYSTEM MAY CONTINUE TO CAUSE TRAVEL DIFFICULTIES ACROSS THE SIERRA THIS EVENING. IF TRAVELING THROUGH THE SIERRA TONIGHT...CONTINUE TO CHECK THE LATEST ROAD REPORTS FOR TRAVEL RESTRICTIONS OR CHAIN CONTROLS. $$
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 Sacramento, CA wrote its last area forecast discussion before this winter storm warning went out at Dec 27, 2:50 PM PST, 11 minutes earlier.
Area forecast discussion, Dec 27, 2:50 PM PST, 11 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SACRAMENTO CA 250 PM PST MON DEC 27 2010 .EXTENDED DISCUSSION (FRIDAY THROUGH MONDAY)... SUBSTANTIAL VARIABILITY BETWEEN THE GFS...ECMWF...AND CANADIAN 12Z MODEL RUNS IN THE LONG TERM PERIOD. THE MODELS ALL INDICATE RIDGING OVER CALIFORNIA AND LOW PRESSURE DISTURBANCE ORIGINATING FROM THE GULF OF ALASKA THURSDAY...BUT BY FRIDAY THE LOCATION AND DYNAMICS OF THE LOW VARY GREATLY. THE GFS ATTEMPTS TO BRING THIS LOW IN AS A TROUGH ALONG THE PAC NW LATE FRIDAY AND THEN SLIDE THE REMAINING MOISTURE EAST OF THE SIERRA BY SATURDAY AFTERNOON. MUCH UNLIKE THE MORE PROGRESSIVE GFS...THE EC FORMS A SLOW MOVING CLOSED LOW CENTERED AT 135W AND 40N BY EARLY SATURDAY THAT THEN SLIDES DOWN THE CALIFORNIA COAST LATE IN THE WEEKEND. THE GEM RESEMBLES A COMPROMISE BETWEEN THE GFS AND ECMWF. THE GEM BRINGS IN AN UPPER LEVEL LOW TO NORTHERN CALIFORNIA LATE SATURDAY THAT PUSHES THROUGH THE REST OF THE STATE BY THE END OF THE WEEKEND AND WOULD PROVIDE THE HIGHEST PROBABILITY OF PRECIP FOR THE CWA. THE LIKELIHOOD OF PRECIPITATION FOR MOST OF NORTHERN CALIFORNIA ON NEW YEARS EVE LOOKS LOW DESPITE THE HIGH MODEL UNCERTAINTY. BASED ON THE PERFORMANCE OF THE MODELS IN RECENT WEEKS HAVE WEIGHTED TODAYS FORECAST TOWARDS THE SLIGHTLY WARMER AND WETTER GFS AND GEM OUTPUT YIELDING A SLIGHT CHANCE OF SHOWERS FOR THE WEEKEND... PREDOMINATELY OVER THE MOUNTAINS. DRP && .AVIATION...A FEW LOW CLOUDS ARE LINGERING IN THE VICINITY OF KSMF AND BETWEEN KSMF AND KSCK...WITH LOCAL IFR CEILINGS POSSIBLE THIS AFTERNOON. OTHERWISE...SEEING PRIMARILY VFR CONDITIONS ACROSS THE REGION. HIGH CLOUDS ARE BEGINNING TO STREAM ACROSS NORTHERN CALIFORNIA...AHEAD OF THE NEXT SYSTEM. IN FACT...SOME WARM FRONTAL PRECIPITATION IS JUST OFF THE COAST...AND WILL SPREAD ACROSS THE NORTHERN MOUNTAINS LATER THIS EVENING AND OVERNIGHT TONIGHT. THEREFORE...EXPECT CEILING TO START LOWERING THIS EVENING...WITH MVFR AND AREAS OF IFR CONDITIONS DEVELOPING ACROSS THE NORTHERN AREAS TONIGHT AFTER 04Z...THEN SPREADING SOUTH AND EAST THROUGH THE NIGHT AND TOMORROW. EXPECT DETERIORATING CONDITIONS IN THE MOUNTAINS...WITH IFR/LIFR CONDITIONS THERE. && .STO WATCHES/WARNINGS/ADVISORIES... WINTER STORM WARNING FROM 2 PM TUESDAY TO 10 AM PST WEDNESDAY ABOVE 4500 FEET FOR THE WESTERN PLUMAS COUNTY/LASSEN PARK. WINTER STORM WARNING FROM 4 PM TUESDAY TO 4 PM PST WEDNESDAY ABOVE 5000 FEET FOR THE WEST SLOPE NORTHERN SIERRA NEVADA. WINTER WEATHER ADVISORY FROM 10 AM TUESDAY TO 4 AM PST WEDNESDAY ABOVE 4000 FEET FOR THE BURNEY BASIN / EASTERN SHASTA COUNTY... MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY... SHASTA LAKE AREA / NORTHERN SHASTA COUNTY. && PUBLIC...61 AVIATION...61
Hazardous weather outlook, Dec 27, 4:25 AM PST, 10 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SACRAMENTO CA 425 AM PST MON DEC 27 2010 CAZ013>019-063-064-066>069-281500- SHASTA LAKE AREA/NORTHERN SHASTA COUNTY- BURNEY BASIN/EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY- CENTRAL SACRAMENTO VALLEY-SOUTHERN SACRAMENTO VALLEY- CARQUINEZ STRAIT AND DELTA-NORTHERN SAN JOAQUIN VALLEY- MOUNTAINS SOUTHWESTERN SHASTA TO NORTHERN LAKE COUNTIES- CLEAR LAKE/SOUTHERN LAKE COUNTY-MOTHERLODE- EAST FOOTHILLS/NORTH SACRAMENTO VALLEY- WESTERN PLUMAS COUNTY/LASSEN PARK-WEST SLOPE NORTHERN SIERRA NEVADA- 425 AM PST MON DEC 27 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA. .DAY ONE...TODAY A FEW AREAS OF LIGHT PRECIPITATION WILL BE POSSIBLE ACROSS THE REGION TODAY ALONG WITH SOME PATCHES OF MORNING VALLEY FOG...OTHERWISE NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN... TUESDAY THROUGH SUNDAY ANOTHER WEATHER SYSTEM WILL SPREAD PRECIPITATION ACROSS THE REGION TUESDAY INTO WEDNESDAY WITH PERIODS OF HEAVY SNOW AND GUSTY WINDS POSSIBLE ACROSS THE HIGHER ELEVATIONS OF THE NORTHERN SIERRA NEVADA. COLDER AND DRIER CONDITIONS WILL SETTLE IN FOR LATE IN THE WEEK. * WINTER STORM WATCH.........SEE WWUS46 KSTO - WSWSTO FOR DETAILS * .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE. THE LATEST WEATHER INFORMATION IS AVAILABLE ON THE INTERNET AT (LOWER CASE): HTTP://WWW.WRH.NOAA.GOV/STO
In the hours before
Special weather statement, Dec 27, 3:01 PM PST, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SACRAMENTO CA 301 PM PST MON DEC 27 2010 CAZ015>019-064-066-067-281115- NORTHERN SACRAMENTO VALLEY-CENTRAL SACRAMENTO VALLEY- SOUTHERN SACRAMENTO VALLEY-CARQUINEZ STRAIT AND DELTA- NORTHERN SAN JOAQUIN VALLEY-CLEAR LAKE/SOUTHERN LAKE COUNTY- NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-MOTHERLODE- 301 PM PST MON DEC 27 2010 ...ANOTHER STORM WILL TAKE AIM AT NORTHERN CALIFORNIA...AND COULD BRING SNOW TO THE FOOTHILLS WEDNESDAY A STRONG POLAR JET STREAM WILL DRIVE ANOTHER LOW PRESSURE SYSTEM INTO NORTHERN CALIFORNIA TOMORROW NIGHT AND WEDNESDAY. SCATTERED SHOWERS WILL RETURN LATER TONIGHT OVER THE NORTHERN MOUNTAINS AND RAIN WILL BECOME STEADY IN THE MORNING OVER THE NORTHERN SACRAMENTO VALLEY AND SURROUNDING FOOTHILLS...AND THEN SPREAD SOUTH AND EAST INTO SOUTHERN SACRAMENTO AND NORTHERN SAN JOAQUIN VALLEY AND MOTHERLODE IN THE AFTERNOON. THE MAIN PART OF THE STORM WILL MOVE THROUGH THE INTERIOR TUESDAY EVENING INTO EARLY WEDNESDAY MORNING WHEN MODERATE TO LOCALLY HEAVY RAINFALL WILL LIKELY OCCUR WITH GUSTY WINDS AS THE FRONT MOVES THROUGH. PRECIPITATION WILL TURN MORE SHOWERY BEHIND THE COLD FRONT WEDNESDAY...AS MUCH COLDER AIR WILL SPILLS INTO NORTHERN CALIFORNIA. SNOW LEVELS WILL DROP TO 1000 FEET IN SHASTA COUNTY...TO 2500 FEET IN THE MOTHERLODE AND SOUTHERN LAKE COUNTY HILLS DURING THE DAY ON WEDNESDAY. RAINFALL TOTALS FROM THIS STORM WILL RANGE FROM ONE HALF INCH TO AN INCH IN THE VALLEYS. ONE TO TWO INCHES OF RAIN WITH LOCAL HIGHER AMOUNTS POSSIBLE FOR THE NORTHERN FOOTHILLS. A COUPLE OF INCHES OF SNOW MAY FALL OVER THE ELEVATIONS BETWEEN 2000 AND 3000 FEET OF SHASTA COUNTY AND LAKE COUNTY ON WEDNESDAY WITH LIGHT AMOUNTS OF SNOW THE HIGHER ELEVATIONS OF THE MOTHERLODE. UNSTABLE AIR COULD CAUSE SHOWERS WITH SMALL HAIL OR SLEET ON WEDNESDAY. CLEARING SKIES AND COLDER TEMPERATURES ARE LIKELY WEDNESDAY NIGHT. NORTH WINDS MAY PREVENT TEMPERATURES FROM FALLING BELOW FREEZING IN MANY VALLEY AREAS...BUT IT WILL FEEL QUITE CHILLY. WIND CHILLS TEMPERATURES IN THE TEENS AND 20S ARE POSSIBLE FOR FOOTHILL AND CENTRAL VALLEY LOCATIONS. WIND SHELTER AREAS IN THE CENTRAL VALLEY WILL LIKELY HAVE TEMPERATURES DIP INTO THE UPPER 20S TO LOWER 30S WHILE IN THE FOOTHILLS WIND SHELTERED LOCATIONS WILL LIKELY DIP INTO THE MID 20S. ICY ROADWAYS WEDNESDAY NIGHT AS TEMPERATURES COOL MAY ALSO BECOME A PROBLEM...MAINLY FOR THE FOOTHILLS. CONTINUE TO MONITOR THE LATEST NATIONAL WEATHER SERVICE FORECASTS FOR UPDATES ON THIS DEVELOPING STORM. RB
The office that day
Everything else NWS Sacramento, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 27, 4:16 AM PST | Winter Storm Watch | STO | 11 hr | |
| Dec 27, 3:01 PM PST | Winter Weather Advisory | STO | 36 hr |
Nearby
Winter Storm Warnings in California, 2010Every winter storm warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.