1 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it. 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 Aug 4, 2:00 PM PST, 3 hours 50 minutes earlier.
WESTERN NEVADA AND EASTERN CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RENO NV 300 PM PDT MON AUG 4 2003 SOUTHERLY FLOW HAS INCREASED AT THE MID AND UPPER LEVELS TODAY WITH STRONG DRYING INDICATED ABOVE 15K FEET IN THE RENO SOUNDING THIS MORNING. THE AIRMASS REMAINS UNSTABLE ACROSS NE CA AND NRN NV THIS AFTERNOON HOWEVER THE DYNAMICS ARE NOT IMPRESSIVE. TEMPERATURES ARE MARGINAL FOR RELEASING ENERGY IN ORGANIZED THUNDERSTORMS THERE. A FEW STRONG STORMS UNDER UPPER SHEAR ARE STILL POSSIBLE FROM LASSEN TO NRN WASHOE COUNTY YET THIS AFTERNOON AND EARLY EVENING. THE AREA OF MAXIMUM INSTABILITY THEN SHIFTS NORTH INTO OREGON AND IDAHO LATER THIS EVENING AND OVERNIGHT WITH STRONGER UPPER DIVERGENCE. SOME MOISTURE LINGERS NE CA AND NW NV BUT THE AIRMASS IS OTHERWISE DRYING AND STABLE TUESDAY. STRONGER SW WINDS ARE EXPECTED TUESDAY WITH A MODERATE THERMAL GRADIENT FROM NRN CA TO WRN NV. TEMPERATURES FALL SLIGHT TUESDAY WITH LOWER THICKNESS. THERE IS LITTLE CHANGE IN THIS PATTERN THROUGH THURSDAY WITH MODERATELY STRONG SW FLOW BETWEEN AN UPPER RIDGE OVER THE ROCKIES AND A TROUGH OFF THE WEST COAST. OSTERMAN. IN THE EXTENDED...FRIDAY THROUGH MONDAY... MODELS IN AGREEMENT WITH TROF OFF THE PACIFIC NW COAST AND STRONG UPPER HIGH CENTERED OVER THE ERN ROCKIES ON FRIDAY. LATEST UKMET RUN AGREES WITH 00Z GFS WITH HIGH MOVING WEST ACROSS THE 4 CORNERS AREA BY SUNDAY. TROF WILL REMAIN OFFSHORE THRU MONDAY MORNING... GFS BEGINS MOVING TROF ONSHORE MONDAY EVENING. NOT OVERLY CONFIDENT IN MOVEMENT OF TROF OUT IN DAY 7. IN THE MEANTIME... DRY AND STABLE SOUTHWEST FLOW WILL PERSIST THROUGH THE EXTENDED. STRONGER 500 AND 700MB GRADIENT COUPLED WITH WEAK SHORT WAVES ROTATING AROUND PACIFIC TROF WILL ALLOW FOR BREEZY CONDITIONS DURING THE AFTERNOONS AND EVENINGS. TEMPERATURES WILL REMAIN JUST BELOW NORMAL THROUGH SATURDAY... THEN INCREASE A DEGREE OR SO TO NEAR NORMAL SUNDAY AND MONDAY AS HIGH BEGINS TO BUILD BACK WEST. BENINATO .REV...NONE.
CAZ070>073-NVZ001>005-051400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RENO NV 655 AM PDT MON AUG 04 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NEVADA...THE EASTERN SIERRA AND NORTHEASTERN CALIFORNIA. .DAY ONE...TODAY SCATTERED THUNDERSTORMS WILL BE SEEN TODAY ACROSS THE NORTH AND EAST. .DAYS TWO THROUGH SEVEN...TUEDAY THROUGH MONDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SKYWARN ACTIVATION IS NOT EXPECTED AT THIS TIME. WEATHER SPOTTERS ARE ASKED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
0604 PM PDT MON AUG 04 2003
TIME(PDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
GBPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RENO NV
0607 PM PDT MON AUG 04 2003
TIME(PDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0510 PM 20 E RENO NV FLASH FLOOD
08/04/03 WASHOE MUDSLIDE CLOSED I-80 NEAR
DERBY DAM BETWEEN MILE
MARKERS 33-35.
GBThe national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
Measured by an automated weather station 34 miles northeast of Cedarville, CA.
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, August 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: 5375309.