A winter storm brought snow down into the Sierra Nevada foothills.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS STO wrote it up.
A winter storm brought snow down into the Sierra Nevada foothills.
The local office's own words before the first event, 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 the first event at Apr 4, 8:00 AM PST, 3 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SACRAMENTO CA 900 AM PDT SUN APR 4 2010 .DISCUSSION... UPPER LEVEL TROUGH DIGGING OFF THE WEST COAST THIS MORNING AS 120 KT JET DIVES DOWN THE BACKSIDE OF THE TROUGH. THE TROUGH AND COLD UPPER LEVEL LOW PRESSURE SYSTEM WITH ASSOCIATED COLD FRONT WILL BRING A WET...WINDY AND COOL EASTER TO INTERIOR NORTHERN CALIFORNIA. PRECIPITATION IS STARTING TO FALL IN SHASTA COUNTY THIS MORNING WITH A MIXTURE OF RAIN AND SNOW REPORTED AROUND 2500 FEET NEAR SIMS. PRECIPITATION IS EXPECTED TO INCREASE DURING THE DAY TODAY AS THE ASSOCIATED COLD FRONT APPROACHES THE AREA. THE FRONT IS EXPECTED TO MOVE INTO THE AREA THIS AFTERNOON INTO EVENING BRINGING PERIODS OF MODERATE TO HEAVY PRECIPITATION...ESPECIALLY OVER THE MOUNTAINS. SOUTHERLY WINDS WILL ALSO INCREASE DURING THE DAY AHEAD OF THE FRONT. MFR-SAC SURFACE PRESSURE GRADIENT HAS INCREASED TO AROUND 11 MB AND MFR-RDD AROUND 8 MB THIS MORNING. THIS IS BRINGING SOUTHERLY WINDS AROUND 20 MPH IN THE NORTHERN SACRAMENTO VALLEY AND AROUND CHICO THIS MORNING. THE GRADIENT IS EXPECTED TO SPREAD SOUTH DURING THE DAY TODAY SO THE WIND ADVISORY LOOKS GOOD FOR NOW. SOUTHERLY WINDS AROUND 35-45 KTS AROUND 2000 TO 4000 FEET ON THE VAD WIND PROFILERS ON KDAX AND BBX THIS MORNING. THESE WINDS WILL BRING GUSTY WINDS TO THE VALLEY AND BREEZY AND GUSTY WINDS TO THE HIGHER TERRAIN. 700 MB DROP DOWN TO AROUND -12 DEG C AND 850 MB TEMPERATURES AROUND -2 DEGREES ALONG WITH 1000-500 MB THICKNESSES DECREASING TO AROUND 5310M MONDAY MORNING BEHIND THE FRONT. THIS WILL DROP SNOW LEVELS TO AROUND 2000 FEET BY MONDAY MORNING BEHIND THE COLD FRONT. THIS WILL BRING SNOW TO THE FOOTHILLS. SHOWERS ARE EXPECTED ON MONDAY WITH COLD UNSTABLE AIR BEHIND THE FRONT AND THE TROUGH MOVING THROUGH THE AREA. 500 MB TEMPERATURES AROUND -32 DEG C ON MONDAY AND LOCAL WRF SHOWS CAPES AROUND 400 J/KG IN THE VALLEY SO MAY NEED TO ADD IN THE POSSIBILITY OF THUNDERSTORMS FOR MONDAY AFTERNOON. COOL CLOUDY EASTER DAY TODAY WITH TEMPERATURES WILL BE AROUND 10 TO 20 DEGREES BELOW NORMAL WITH HIGHS IN THE 50S IN THE VALLEYS AND 30S IN THE MOUNTAINS. THIS MORNING GOT OFF TO A CHILLY START...ESPECIALLY FOR RED BLUFF WHICH HAD A RECORD LOW BROKEN WITH 33 DEGREES THIS MORNING. TEMPERATURES WILL REMAIN BELOW NORMAL ON MONDAY AND BEGIN TO WARM UP ON TUESDAY INTO THE 60S IN THE VALLEY AND 40S IN THE MOUNTAINS AS HIGH PRESSURE BEGINS TO BUILD OVER THE REGION. WEDNESDAY SHOULD BE A NEAR NORMAL SPRING DAY WITH TEMPERATURES UP INTO THE LOWER 70S IN THE VALLEY AND 50S IN THE MOUNTAINS AS THE RIDGE AXIS OF HIGH PRESSURE IS OVER THE AREA. HSO .EXTENDED DISCUSSION (THURSDAY THROUGH SUNDAY)...UPPER RIDGE OVER THE REGION DURING THE MIDDLE OF THE WEEK FORECAST TO FLATTEN BY LATE WEEK AS A SERIES OF SYSTEMS MOVE OVER THE RIDGE INTO THE PACIFIC NORTHWEST. LONGWAVE UPPER TROUGH FORECAST BY THE EXTENDED MODELS TO REDEVELOP OFF THE WEST COAST NEXT WEEKEND... HOWEVER DETAILS DIFFER AMONG THE VARIOUS MODEL RUNS SO WILL CONTINUE THE TREND IN THE FORECAST TOWARD A POTENTIAL RETURN TO COOLER AND MORE UNSETTLED WEATHER ACROSS THE REGION. && .AVIATION...VFR CONDS THROUGH 18Z. MVFR CONDS WITH LCL IFR CONDS DVLPG HYR TRRN AFT 18Z WITH MVFR CONDS DVLPG IN THE CNTL VLY 00Z-06Z MON AS COLD PAC WX SYS MVS INLAND. CHANCE OF PRECIPITATION SPREADS SOUTH THROUGH THE DAY WITH RAIN LIKELY DOWN TO ABOUT I-80 BY 00Z MON. INCREASING SLY WIND GUSTS 30-40 KTS 18Z TODAY-06Z MON. && .STO WATCHES/WARNINGS/ADVISORIES... ...WINTER STORM WARNING FROM 5 PM THIS AFTERNOON TO 5 PM PDT MONDAY ABOVE 2000 FEET FOR THE MOTHERLODE...NORTHEAST FOOTHILLS/SACRAMENTO VALLEY...WEST SLOPE NORTHERN SIERRA NEVADA...WESTERN PLUMAS COUNTY/LASSEN PARK. ...WINTER STORM WARNING FROM 11 AM THIS MORNING TO 11 AM PDT MONDAY ABOVE 2000 FEET FOR THE BURNEY BASIN / EASTERN SHASTA COUNTY...CLEAR LAKE/SOUTHERN LAKE COUNTY...MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY...SHASTA LAKE AREA / NORTHERN SHASTA COUNTY. ...WIND ADVISORY FROM 2 PM THIS AFTERNOON TO 11 PM PDT THIS EVENING CARQUINEZ STRAIT AND DELTA...NORTHERN SAN JOAQUIN VALLEY...SOUTHERN SACRAMENTO VALLEY. ...WIND ADVISORY FROM NOON TODAY TO 9 PM PDT THIS EVENING CENTRAL AND NORTHERN SACRAMENTO VALLEYS. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SACRAMENTO CA 500 AM PDT SUN APR 4 2010 CAZ013>019-063-064-066>069-051400- 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- 500 AM PDT SUN APR 4 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA. .DAY ONE...TODAY AND TONIGHT COLD FRONT WILL MOVE ACROSS NORTHERN CALIFORNIA TODAY AND TONIGHT...BRINGING MODERATE TO HEAVY PRECIPITATION AT TIMES AS WELL AS GUSTY WINDS AND LOWER ELEVATION SNOW TO THE REGION. THEREFORE...WINTER WEATHER PRODUCTS AND WIND ADVISORIES ARE IN PLACE. * WINTER STORM WARNING.......SEE WWUS46 KSTO - WSWSTO FOR DETAILS * * WIND ADVISORY..............SEE WWUS76 KSTO - NPWSTO FOR DETAILS * .DAYS TWO THROUGH SEVEN... MONDAY THROUGH SATURDAY COLD TROUGH OF LOW PRESSURE WILL REMAIN OVER THE REGION ON MONDAY...WITH THE THREAT OF SHOWERS AND LOW ELEVATIONS SNOW CONTINUING. AN ISOLATED THUNDERSTORM CANNOT BE RULED OUT AS WELL. THE TROUGH WILL THEN SLOWLY EXIT THE REGION MONDAY NIGHT...AS HIGH PRESSURE BUILDS BACK FOR THE REGION FOR THE MIDDLE PART OF THE WORK WEEK. EXPECT DRY AND WARMER CONDITIONS TO PREVAIL THROUGH AT LEAST THURSDAY. * WINTER STORM WARNING.......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
6 winter storm. Local standard time, as filed.
A winter storm brought up to a foot of snow to the mountains of Shasta County.
A winter storm brought up to eight inches of snow to portions of the area.
A winter storm brought up to a foot of snow to the mountains of Shasta County.
A winter storm brought up to eight inches of snow to the area.
A winter storm brought two to four inches of snow to the foothills. Snow fell at elevations as low as 1800 feet.
A winter storm brought one to three inches of snow to the foothills. Snow fell at elevations as low as 2000 feet.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2010Every state in 2010This day in weather historyWarnings in California, April 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 228036, 228049, 228040, 228045, 228051, 228063.