Caltrans reported 4 inches of snow in 6 hours in Sierraville, CA.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 REV wrote it up.
Caltrans reported 4 inches of snow in 6 hours in Sierraville, CA.
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 Reno, NV wrote its last area forecast discussion before the first event at Feb 22, 3:00 AM PST, 3 hours 1 minute earlier.
WESTERN NEVADA AND EASTERN CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
300 AM PST THU FEB 22 2001
AN UPPER LOW OFF NW CA THIS MORNING MOVES SLOWLY INLAND TODAY. THE
ASSOCIATED COLDFRONT CROSSES THE SIERRA THIS MORNING AND CONTINUES
OVER WRN NV THIS AFTERNOON WITH SOME STRONG GUSTS. QPF FOR THE NRN
SIERRA IS NOT HIGH AND THE FRONT MOVES THROUGH FAST ENOUGH TO KEEP
SNOW AMOUNTS IN THE ADVISORY RANGE TODAY. THE WRN VALLEYS SHOULD
SEE SOME LIGHT PRECIPITATION WITH THE FRONT BY AFTERNOON. A SHORT
WAVE DROPS SOUTH OF THE UPPER LOW BY THIS EVENING TO BRING A SECOND
MAXIMUM OF VERTICAL MOTION TO THE SIERRA SHOULD ENHANCE SNOWFALL FOR
MONO COUNTY TONIGHT. WRN NV VALLEYS WILL SEE SNOW SHOWERS UNDER THE
COLD UPPER TROUGH. SCATTERED SHOWERS CONTINUE FRIDAY IN NORTHERLY
FLOW ALOFT. A WEAK TROUGH MOVES SOUTH OVER WRN NV AND SOUTH OF THE
AREA TOWARD EVENING WHILE THE WEST IMPROVES WITH SUBSIDENCE AND SOME
DRYING. A BREAK COMES FRIDAY NIGHT WITH COOLER TEMPERATURES. OVER
RUNNING SPREADS ACROSS THE SIERRA TO WRN NV SATURDAY IN ADVANCE OF
ANOTHER UPPER TROUGH THAT MOVES INLAND AND OVER THE AREA MONDAY AND
TUESDAY WITH COOL SHOWERY CONDITIONS. DR YING FOLLOWS THE SYSTEM
EAST WEDNESDAY. OSTERMAN.
.REV...SNOW ADVISORY TODAY ZONE 71
SNOW ADVISORY TODAY AND TONIGHT FOR ZONE 71/2
SNOW ADVISORY THIS AFTERNOON AND TONIGHT ZONE 73.The national radar mosaic for the moment the first event began.
1 heavy snow. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2001Every state in 2001This day in weather historyWarnings in California, February 2001
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: 5233320.