A winter storm brought up to two feet of snow to the highest elevations.
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 up to two feet of snow to the highest elevations.
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 2, 2:30 PM PST, 4 hours 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SACRAMENTO CA 330 PM PDT FRI APR 2 2010 .DISCUSSION...BACK EDGE OF COLD FRONT NOW APPEARS FROM IR IMAGERY TO HAVE NOW MOVED ONSHORE. SNOW LEVELS HAVE BEEN REPORTED AS LOW AS 2500 FEET IN SHASTA COUNTY AND AROUND 3000 FEET OVER THE NORTHERN SIERRA. SURFACE WIND SPEEDS STILL AT ADVISORY CRITERIA AT A FEW LOCATIONS IN THE NORTHERN AND CENTRAL SACRAMENTO VALLEY BUT SOUTHERLY SURFACE GRADIENTS ARE DECREASING. THEREFORE...HAVE UPDATED HAZARD GRIDS TO REFLECT EARLIER EXPIRATION OF WIND ADVISORY. AS MAIN FRONTAL BAND SHIFTS EASTWARD...WILL SEE DECREASE IN SNOW AND SHOWER ACTIVITY OVER THE NORTHERN MOUNTAINS OVER THE NEXT SEVERAL HOURS. THEREFORE...EXPIRATION OF SNOW ADVISORY OVER THE NORTHERN MOUNTAINS AT 8 PM LOOKS GOOD. LATER FRONTAL PASSAGE WILL KEEP HEAVIER SNOW GOING OVER THE SOUTHERN CASCADES THROUGH AROUND MIDNIGHT WITH OROGRAPHICS POSSIBLY KEEPING SHOW SHOWERS GOING OVER THE WEST SLOPES OF THE NORTHERN SIERRA THROUGH THE EARLY MORNING HOURS. WILL LEAVE TIMING OF WINTER STORM WARNINGS ALONE FOR NOW AS WELL. UPPER TROUGH FORECAST TO SHIFT INTO THE GREAT BASIN BY 12Z SATURDAY. VISIBLE SATELLITE IMAGE SHOWS SOME CONVECTION OFFSHORE SO SCATTERED SHOWERS LIKELY TO CONTINUE THROUGH THE NIGHT. FLAT RIDGE SLIDES OVER CALIFORNIA ON SATURDAY. SHORTWAVE TROUGH RIDING OVER RIDGE SATURDAY AFTERNOON MAY BRING SOME LIGHT PRECIP OVER THE NORTHERN MOUNTAINS SO SLIGHT CHANCE POPS LOOK OKAY THERE. MORNING GFS AND ECMWF KEEP PRECIP MAINLY NORTHERN MOST CWA SO HAVE REMOVED CHANCE POPS FROM WEST SLOPE ZONES FOR SATURDAY. NEXT UPSTREAM LOW DROPS INTO EASTERN PACIFIC SUNDAY AFTERNOON. LIGHT OVERRUNNING PRECIP LIKELY BY LATE SATURDAY NIGHT WITH MAIN FRONTAL SYSTEM MOVING ONTO THE NORTH COAST BY SUNDAY AFTERNOON. MAIN PRECIP SHOULD HOLD OFF FOR MOST AREAS OF THE FORECAST AREA UNTIL AFTER NOON SO EASTER MORNING SHOULD NOT SEE ANYTHING MORE THAN VERY LIGHT PRECIP. THE MAIN FRONT IS FORECAST TO MOVE THROUGH NORCAL SUNDAY NIGHT WITH MAIN TROUGH MOVING THROUGH NORCAL ON MONDAY FOR CONTINUED SHOWERS. QPF VALUES WITH THIS SYSTEM SIMILAR TO TODAYS SYSTEM SO WILL LIKELY NEED WINTER WEATHER PRODUCTS FOR THEM AS WELL. FOR NOW...WILL HIGHLIGHT EXTENDED WINTER WEATHER LATE IN THE WEEKEND IN CURRENT WINTER WEATHER PRODUCTS. SMITH .EXTENDED DISCUSSION (TUESDAY THROUGH FRIDAY)... LINGERING SHOWERS OVER THE COASTAL MOUNTAINS EARLY TUESDAY MORNING GIVING WAY TO DRY WEATHER AS UPPER LEVEL RIDGING DEVELOPS. AFTERNOON HIGH TEMPERATURES WILL REMAIN SEVERAL DEGREES BELOW NORMAL AS THE COOL AIRMASS LINGERS. ABOVE NORMAL TEMPERATURES ON WEDNESDAY AND THURSDAY WITH DRY CONDITIONS AS THE UPPER LEVEL RIDGE DEVELOPS. COOLER WEATHER ON FRIDAY WITH A COLD SYSTEM DROPPING INTO THE REGION. MODELS DIVERGE ON POSITION OF LOW BUT EITHER WAY EXPECT SOME LIMITED PRECIPITATION OVER THE NORTHERN MOUNTAINS AS THIS SYSTEM LOOKS RELATIVELY DRY. EK .AVIATION... AREAS OF MVFR IN RAIN SHOWERS AND LOCAL IFR FOR THE CENTRAL VALLEY ENDING BY THIS EVENING BECOMING MAINLY VFR AFTER 06-08Z. SOUTHERLY WIND GUSTS TO 35 KT THROUGH 03Z THEN RAPIDLY DECREASING OVERNIGHT. MOUNTAIN SNOW SHOWERS WITH IFR/LIFR WILL GRADUALLY DIMINISH OVERNIGHT EXCEPT OVER THE MOUNTAINS OF SHASTA COUNTY. SNOW LEVELS IN THE 2500 TO 3000 FT RANGE. WESTERLY RIDGETOP GUSTS PEAKING AROUND 50-55 KTS BEFORE 06Z AND THEN GRADUALLY DECREASING. EK && .STO WATCHES/WARNINGS/ADVISORIES... .WINTER WEATHER ADVISORY THROUGH 8 PM PDT ABOVE 3000 FEET FOR THE MOUNTAINS OF SHASTA COUNTY AND ALONG THE COASTAL RANGE SOUTHWARD TO TO NORTHERN LAKE COUNTY. .WINTER STORM WARNING THROUGH 1 AM PDT SATURDAY FOR WESTERN PLUMAS COUNTY INCLUDING LASSEN PARK. .WINTER STORM WARNING THROUGH 5 AM PDT SATURDAY FOR THE WEST SLOPES OF THE NORTHERN SIERRA NEVADA. .WIND ADVISORY THROUGH 7 PM PDT FOR NORTHERN AND CENTRAL SACRAMENTO VALLEY. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SACRAMENTO CA 600 AM PDT FRI APR 2 2010 CAZ013>019-063-064-066>069-031400- 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- 600 AM PDT FRI APR 2 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA. .DAY ONE...TODAY A PACIFIC STORM WILL MOVE THROUGH TODAY INTO TONIGHT BRINGING STRONG WIND TO PORTIONS OF INTERIOR NORTHERN CALIFORNIA ALONG WITH SIGNIFICANT SNOW IN THE MOUNTAINS WHICH WILL ADVERSELY AFFECT TRAVEL INTO THE HIGH COUNTRY * WINTER STORM WARNING.......SEE WWUS46 KSTO - WSWSTO FOR DETAILS * * WIND ADVISORY..............SEE WWUS76 KSTO - NPWSTO FOR DETAILS * * WINTER WEATHER ADVISORY....SEE WWUS46 KSTO - WSWSTO FOR DETAILS * .DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY ANOTHER SIGNIFICANT STORM WILL MOVE THROUGH SUNDAY INTO MONDAY. .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
2 winter storm. Local standard time, as filed.
A winter storm brought up to eleven inches of snow above 5000 feet and up to eighteen inches of snow at the highest elevations.
A winter storm brought up to a foot of snow above 5000 feet and up to two feet at the highest elevations.
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: 228030, 228033.