1 high wind, 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 Apr 21, 1:30 AM PST, 9 hours 2 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RENO NV 230 AM PDT WED APR 21 2004 .SHORT TERM... MAIN CONCERN TODAY WILL BE WINDS WITH 120 KT 300 MB JET OVERHEAD. 700 MB WINDS FORECAST BY ETA/GFS TO BE 30+ KT THROUGH 00Z AND MAINLY FROM THE WEST. MODELS DO SHOW FAVORABLE SURFACE GRADIENT AS WELL AND MILNE WIND AID FAVORABLE DURING EARLY AFTERNOON SO WILL ISSUE WIND ADVISORY FOR THE RENO-TAHOE ZONES NORTHWARD. WILL END IT EARLIER TODAY AT 4 PM AS WINDS PROGGED TO GO MORE NORTHWEST AND DOWNSLOPE EFFECTS WILL BE REDUCED. AS FAR AS MOISTURE...WITH MODELS TRENDING FURTHER SOUTH WITH UPPER LOW AGAIN...WILL KEEP SCT SHOWERS ACROSS THE FAR NORTH AND ISOLATED SHOWERS AS FAR SOUTH AS I-80. OTHER CONCERN IS FOR TONIGHT AS UPPER LOW PASSES BY JUST TO THE EAST. THIS IS AGAIN FURTHER SOUTH AND WEST OF PREVIOUS RUNS. WILL USE GFS AND KEEP ISOLATED SHOWERS EXTREME NORTH AND EAST UNTIL MIDNIGHT. HOWEVER...IF MODELS ADJUST AGAIN TO THE WEST...COLD POOL ALOFT MAY MOVE OVER EASTERN HALF OF AREA. WITH FAVORABLE UPSLOPE FLOW IN NORTH FLOW...SHOWERS MAY MAKE IT DOWN TO THE RENO AREA. THIS HAS HAPPENED TWICE EARLIER IN THE YEAR AS MODELS ADJUSTED FURTHER WEST IN SIMILAR PATTERN WITH SIGNIFICANT PRECIP FOR RENO. EVEN WITH A FURTHER WEST TRACK...PROBABLY WOULD NOT HAVE THE LARGE QPF AMOUNTS OF PAST SYSTEMS AND WILL JUST BRIEF LATER SHIFTS OF REMOTE POSSIBILITY. OTHERWISE...AS LOW MOVES AWAY RIDGING TO BUILD IN FROM PACIFIC WITH TEMPS TO SLOWLY REBOUND THURS. EXPECT BIGGER WARMUP FRI AS LOW LEVEL THERMAL TROUGH TO SET UP OVER AREA WITH POSSIBLE AFTERNOON WEST WINDS TO HELP MIXING. OVERNIGHT LOWS TO BE COOLER WITH GENERALLY CLEAR SKIES FOR GOOD RADIATIONAL COOLING. WALLMANN .LONG TERM...SATURDAY THROUGH TUESDAY... STILL SOME DIFFERENCES IN MODELS REGARDING THE TIMING AND STRENGTH OF RIDGE BUILDING OVER THE WESTERN U.S. THIS WEEKEND. GFS IS NOW THE ONLY MODEL THAT DOES NOT SHOW A TROUGH OR LOW OVER EASTERN OR SOUTHERN NV THROUGH THE WEEKEND. NONE OF THE MODEL SOLUTIONS WOULD BE LIKELY TO GENERATE ANY PRECIPITATION IN THE CWA SO A DRY FORECAST WILL CONTINUE THROUGH THE PERIOD. WILL KEEP FORECASTED TEMPERATURES BELOW MOS GUIDANCE IN WESTERN NV SATURDAY AND SUNDAY AS THE THERMAL TROUGH WOULD REMAIN IN CA IF UPPER RIDGE IS SLOWER TO BUILD PER MODEL CONSENSUS. THERE WILL BE A BETTER CHANCE OF AFTERNOON CUMULUS DEVELOPMENT OVER THE SIERRA EACH DAY AS THE AIRMASS SLOWLY DESTABILIZES BUT NO THUNDERSTORMS ARE EXPECTED AT THIS TIME. RC && .REV WATCHES/WARNINGS/ADVISORIES... NV...WIND ADVISORY THROUGH 4 PM THIS AFTERNOON NVZ002>005. CA...WIND ADVISORY THROUGH 4 PM THIS AFTERNOON CAZ070>072.
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RENO NV 530 AM PDT WED APR 21 2004 CAZ070>072-NVZ002>005-212300- GREATER LAKE TAHOE AREA-GREATER RENO-CARSON CITY-MINDEN AREA-LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES- NORTHERN WASHOE COUNTY-SURPRISE VALLEY CALIFORNIA-WESTERN NEVADA BASIN AND RANGE- 530 AM PDT WED APR 21 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NEVADA...THE EASTERN SIERRA...AND NORTHEASTERN CALIFORNIA. .DAY ONE...TODAY A PACIFIC LOW PRESSURE SYSTEM WILL BRING WINDY CONDITIONS TO THE AREA TODAY. A WIND ADVISORY HAS BEEN POSTED UNTIL 4 PM PDT THIS AFTERNOON...SEE WMO HEADER WWUS75 KREV FOR DETAILS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
56 knot (64 mph) wind gust reported 6 miles southwest of Gardnerville.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2004Every state in 2004This day in weather historyWarnings in Nevada, April 2004
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: 5432194.