1 heavy snow, as filed by the National Weather Service.
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 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 Oct 31, 3:30 PM PST, 10 hours 30 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
330 PM PST FRI OCT 31 2003
.SHORT TERM...
SNOWFALL HAS TOTALED 6-10 INCHES IN THE TRUCKEE AND TAHOE CITY AREA
WITH AN UNCONFIRMED REPORT OF 15 INCHES AT NORTHSTAR SKI AREA. THESE
AREAS HAVE BEEN RECEIVING LAKE ENHANCED SNOW FOR MOST OF THE DAY.
ELSEWHERE AROUND THE LAKE...1 TO 3 INCHES OF SNOW HAVE OCCURRED.
DEFORMATION ZONE AROUND THE UPPER LOW CENTER NEAR SAN FRANCISCO IS
JUST NORTH OF INTERSTATE 80 AND SHOULD CONTINUE MOVING SOUTH. LIGHT
SNOW ACCUMULATIONS HAVE BEEN INDICATED ON WEB CAM IN GARDNERVILLE
AND WITH RADAR AND WS ETA MODEL INDICATING PRECIP THERE FOR A FEW
MORE HOURS...A SNOW ADVISORY WAS ADDED FOR ZONE 3 SOUTH OF RENO. THE
HEAVY SNOW WARNING WILL CONTINUE FOR THE TAHOE ZONE WHILE SNOW
ADVISORY CONTINUES FOR MONO COUNTY.
BY SATURDAY...THE SOUTHERN AND EASTERN ZONES WILL BE LIMITED TO THE
SOUTHERN AND FAR EASTERN ZONES AS DRIER AIR MOVES IN BEHIND THE
WEAKENING UPPER LOW. DRY AND COOL CONDITIONS WILL CONTINUE THROUGH
SUNDAY WHILE NEXT UPPER LOW WITH MORE OVER-WATER TRAJECTORY AND
INCREASED QPF MOVES SOUTH ALONG THE NORTHWEST US COAST.
BY SUNDAY NIGHT...MOISTURE ASSOCIATED WITH THIS SYSTEM WILL REACH
THE NORTHERN ZONES TO TAHOE AND SPREAD SOUTH ON MONDAY. QPF VALUES
WOULD SUPPORT AT LEAST A FOOT OF SNOW IN THE SIERRA BUT SINCE THE
EXPECTED SNOW EVENT IS BEYOND 48 HOURS A WINTER STORM OUTLOOK WAS
ISSUED WITH THIS PACKAGE. SNOW LEVELS WILL AGAIN BE DOWN TO THE
VALLEY FLOOR WITH THIS SYSTEM...AND SOME ACCUMULATION IS POSSIBLE IN
THE LOWER ELEVATIONS IF THE FORECAST TRACK VERIFIES. MJD
.LONG TERM...
TUESDAY THROUGH FRIDAY...
A POSITIVE TILT TROF WILL PERSIST OVER THE WRN STATES THROUGH THE
EXTENDED PERIOD. MODELS DIFFER WITH RESPECT TO SHORT WAVES MOVING
THROUGH THE CWA NEXT WEEK. NOGAPS MOVES A SHORT WAVE THROUGH NRN CA
AND WRN NV TUESDAY MORNING AND ANOTHER ON THURSDAY NIGHT INTO
FRIDAY. 12Z GFS IS SLOWER THAN THE PREVIOUS RUN WITH RESPECT TO
EASTWARD PROGRESSION OF TROF AND IS MORE IN LINE WITH THE NOGAPS AS
FAR AS A SERIES OF SHORT WAVES MOVING THROUGH THE AREA NEXT WEEK...
BUT DIFFER ON TIMING. GFS MOVES SHORT WAVES THROUGH ON TUESDAY AND
THURSDAY WITH MAIN TROF BEGINNING AN EASTWARD PROGRESSION LATE
THURSDAY INTO FRIDAY. THEREFORE A GOOD CHANCE OF SNOW WILL EXIST
ACROSS MOST OF THE CWA ON TUESDAY AND OVER ERN PORTIONS ON WEDNESDAY
AS SHORT WAVE MOVES EAST. STILL LEFT A SLIGHT CHANCE OVER THE
SIERRAS AND FAR WRN NV ON WEDNESDAY AND ADDED SLIGHT CHANCE TO
THURSDAY DUE TO UNCERTAINTY OF SHORT WAVE TIMING. LEFT FRIDAY DRY
CONSIDERING MOST MODELS PUSH TROF EAST BY THEN AND LEAVE A NORTHWEST
FLOW ACROSS MOST OF THE CWA. COLD AIRMASS WILL REMAIN IN PLACE WITH
TEMPERATURES 10-12 DEGREES BELOW NORMAL THROUGH FRIDAY. COMMON LOWS
WILL REMAIN IN THE MID TEENS AND 20S WITH HIGHS FROM THE MID 30S IN
THE MOUNTAINS TO THE MID 40S IN LOWER VALLEYS. BENINATO
&&
.REV WATCHES/WARNINGS/ADVISORIES...
NV...HEAVY SNOW WARNING THROUGH 6 PM ZONE 2.
SNOW ADVISORY THROUGH 8 PM ZONE 3 SOUTH OF RENO.
CA...HEAVY SNOW WARNING THROUGH 6 PM ZONE 72.
SNOW ADVISORY THIS AFTERNOON THROUGH 10 AM SATURDAY ZONE 73.
&&CAZ070>073-NVZ001>005-011400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RENO NV 915 AM PST FRI OCT 31 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NEVADA...THE EASTERN SIERRA AND NORTHEASTERN CALIFORNIA. .DAY ONE...TODAY WINTER WEATHER ADVISORIES FOR 3 TO 7 INCHES OF SNOW ARE IN EFFECT FOR TODAY AND TONIGHT FOR THE SIERRA FROM TAHOE SOUTH INTO MONO COUNTY INCLUDING AREAS WEST OF HIGHWAY 395. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY A SNOW ADVISORY IS IN EFFECT FOR MONO COUNTY THROUGH SATURDAY MORNING THEN SNOW SHOWERS WILL TAPER OFF. ANOTHER STORM SYSTEM IS EXPECTED TO AFFECT WESTERN NEVADA AND THE EASTERN SIERRA SUNDAY NIGHT THROUGH TUESDAY WITH SIGNIFICANT SNOWFALL POSSIBLE MAINLY IN THE SIERRA. SCATTERED SNOW SHOWERS WILL CONTINUE WEDNESDAY AND THURSDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
1107 PM PST FRI OCT 31 2003
TIME(PST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0235 PM TRUCKEE CA 8.00 INCH HEAVY SNOW
10/31/03 NEVADA 8 INCHES OF SNOW AT 6300
FEET.
0230 PM NORTHSTAR CA 15.00 INCH HEAVY SNOW
10/31/03 PLACER 15 INCHES NEW SNOW
0250 PM DONNER PASS CA 10.00 INCH HEAVY SNOW
10/31/03 NEVADA 10 INCHES NEW SNOW
0600 PM TAHOE CITY CA 12.00 INCH HEAVY SNOW
10/31/03 PLACER 12 INCHES OF NEW SNOW PAST
24 HOURS
0800 PM 10 SE TRUCKEE CA 16.00 INCH HEAVY SNOW
10/31/03 PLACER 16 INCHES NEW SNOW PAST 24
HOURS
RCThe national radar mosaic for the moment the first event began.
1 heavy snow. Local standard time, as filed.
4 inches of snow in Hawthorne reported by county sheriff.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2003Every state in 2003This day in weather historyWarnings in Nevada, November 2003
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: 5329356.