California, 2001

Heavy Snow in California, March 9, 2001

March 9, 2001 · NWS REV · 1 event in 1 county or zone

Spotter in Walker reported 7 inches of snow in 3 hours.

Where it happened

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.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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.

What happened

The episode as NWS REV wrote it up.

Spotter in Walker reported 7 inches of snow in 3 hours.

What forecasters said that day

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 Mar 9, 2:45 PM PST, 2 hours 38 minutes earlier.

Area forecast discussion, Mar 9, 2:45 PM PST, 2 hours 38 minutes before
WESTERN NEVADA AND EASTERN CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
245 PM PST FRI MAR 9 2001

UPPER LOW STILL MAKING PROGRESS SOUTH AND THE MORE MODEL RUNS SEEM TO
HAVE A GOOD HANDLE ON THAT.  THERE IS ALSO MORE AGREEMENT IN THE
MODELS TODAY THAN YESTERDAY.  STILL ANOTHER SHOT OF SNOW THIS EVENING
AS GOOD DYNAMICS ASSOCIATED WITH THE UPPER LOW COMBINES WITH COLD
UNSTABLE AIR.  SOME ACCUMULATIONS LIKELY BUT MAINLY IN THE HIGHER
ELEVATIONS.  HAVE EXTENDED THE SNOW ADVISORY INTO THIS EVENING AND
RAISED THE ELEVATIONS ABOVE LAKE LEVEL IN THE TAHOE BASIN AND ABOVE
7000 FEET IN MONO COUNTY.  BY SATURDAY A FEW LINGERING SHOWERS
POSSIBLE AS THE LOW STARTS TO AFFECT SOUTHERN CALIF AND SOUTHERN NV.
THEN SUNDAY A RIDGE STARTS TO MOVE DOWN FROM THE NORTH.  ON THE
MORNING MODEL RUNS THE RIDGE IS NOT AS STRONG AS IS WAS IN PREVIOUS
RUNS BUT IT SHOULD STILL BE DRY BUT MAYBE NOT AS MUCH WARMING BUT
STILL WARMER.  THE MODEL SOLUTION FOR THE FIRST PART OF THE EXTENDED
THROUGH WED SEEM CLEAR BUT LAST NIGHT THE MRF INTRODUCED A LOW
BREAKING OFF OF THE NORTHERN JET AND DROPPING SOUTH ALONG THE CALIF
COAST.  THE MRF HAS ERRORED WITH SIMILAR PATTERNS IN THE PAST BUT CAN
NOT BE DISCOUNTED COMPLETELY.  WILL KEEP SHOWERS IN THURS BUT DRY
FRIDAY OUT.

.REV...SNOW ADVISORY TIL 900 PM LAKE TAHOE AREA ABOVE 6500 FT
       CAZ072...NVZ002.
      .SNOW ADVISORY TONIGHT MONO COUNTY ABOVE 7000 FT CAZ073.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 heavy snow. Local standard time, as filed.

Heavy Snow, Mono

When
March 9, 5:23 PM PST to 8:23 PM PST
Where
Mono forecast zone
Reported by
TRAINED SPOTTER
Coordinates
37.939, -118.887 (the zone’s center; the record gives no point)

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in California in 2001Every state in 2001This day in weather historyWarnings in California, March 2001

Sources

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: 5238848.