1 tornado, 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 2, 1:45 AM PST, 6 hours 14 minutes earlier.
WESTERN NEVADA AND EASTERN CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RENO NV 245 AM PDT SAT AUG 2 2003 A MOIST AIR MASS REMAINS OVER THE WESTERN GREAT BASIN THIS MORNING. PRECIP WATER VALUES ARE STILL AROUND 1.00 INCH ACROSS THE KREV CWFA. LOW LEVEL SOUTHERLY FLOW TODAY WILL CONTINUE TO ADVECT MOISTURE INTO REGION. AS MODELS SHOWED YESTERDAY...K INDEX VALUES ARE EVEN HIGHER TODAY THAN THEY WERE YESTERDAY. K INDICES ARE PROGGED TO BE AROUND 34 TO 38 BY 00Z SUNDAY. HOWEVER INSTABILITY TODAY SHOULD BE LESS THAN IT HAS BEEN THE LAST FEW DAYS. CLOUD COVER WILL KEEP TEMPERATURES FROM RISING VERY RAPIDLY TODAY. AND THIS WILL KEEP LOW LEVEL LAPSE RATES FROM BECOMING TOO STEEP. A WEAK 500 MB VORT MAX IS PROGGED TO MOVE NORTH ALONG THE WESTERN PERIPHERY OF THE 4-CORNERS RIDGE STILL IN PLACE. UPPER LEVEL WINDS WILL REMAIN FAIRLY LIGHT TODAY. THESE LIGHT WINDS WOULD BE ONE OF THE PARAMETERS POINTING TO THE POSSIBILITY FOR FLASH FLOODING TODAY. HOWEVER UPPER LEVEL DYNAMICS REMAIN WEAK AND WE SHOULD NOT SEE THE LIFT GENERATED THAT WE HAVE SEEN THE LAST COUPLE OF DAYS. DO NOT BELIEVE WIDESPREAD THUNDERSTORMS WILL BE A BIG THREAT TODAY. HOWEVER WILL CONTINUE WITH A MENTION OF TSTMS IN THE FORECAST DUE TO THE MOIST AIR MASS IN PLACE AND THE WEAK UPPER VORT MAX MOVING THROUGH. THE THREAT OF HEAVY RAINFALL SEEMS TO BE LESS TODAY BUT THERE WILL STILL BE SHRA ACROSS KREV CWFA. WITH LESS INSTABILITY TODAY I DO NOT PLAN ON ISSUING A FLASH FLOOD WATCH. HOWEVER DAY SHIFT CAN CONTINUE TO MONITOR SITUATION AND ISSUE A WATCH OR WARNINGS AS NECESSARY. UPPER FLOW BECOMES SOUTHWESTERLY LATE SUNDAY INTO MONDAY SO PRECIP CHANCES WILL DECREASE IN THIS DRIER UPPER FLOW. WEAK VORT MAX IS PROGGED TO MOVE UP WEST SIDE OF RIDGE EARLY SUNDAY. HOWEVER I PLAN ON TAKING OUT MENTION OF TSRA SUNDAY NIGHT AND WILL KEEP MONDAY DRY DURING THE DAY AS THE RIDGE BUILDS BACK INTO THE GREAT BASIN. WILL CONTINUE WITH JUST A SLIGHT CHANCE OF TSRA MONDAY NIGHT IN NORTHEAST ZONES AS A WEAK VORT MAX MOVES THROUGH AHEAD OF THE TROUGH OFF THE WEST COAST. OHARA IN THE EXTENDED...TUESDAY THROUGH FRIDAY...PACIFIC TROUGH SET TO APPROACH THE CALIFORNIA AND OREGON COASTS ON TUESDAY AND REMAIN A FIXTURE IN THE FLOW PATTERN THROUGH FRIDAY. UPPER HIGH NEAR THE 4-CORNERS REGION WILL INTERACT WITH THE PACIFIC TROUGH TO INCREASE THE SOUTHWEST FLOW OVER NEVADA. STABLE 40-50 KT SOUTHWEST FLOW AT 500MB WILL FINALLY DRY OUT EASTERN CALIFORNIA AND WESTERN NEVADA THIS WEEK. BEST CHANCE FOR PRECIPITATION IS OVER EASTERN MODOC AND THE NORTHERN PORTIONS OF WASHOE AND LASSEN COUNTIES ON TUESDAY. REDUCED POPS TO SLIGHT CHANCE FOR THESE AREAS WITH BEST INSTABILITY EJECTING NORTH OVER SOUTHERN OREGON AND SOUTHWEST IDAHO. HIGH TEMPERATURES FORECAST TO BE A FEW DEGREES BELOW NORMAL...ESPECIALLY ALONG AND JUST EAST OF THE SIERRA WITH LOWER HEIGHTS AND STRONGER WINDS DURING THE AFTERNOON AND EVENINGS. BRONG .REV...NONE.
CAZ070>073-NVZ001>005-031400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RENO NV 645 AM PDT FRI AUG 01 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NEVADA...THE EASTERN SIERRA AND NORTHEASTERN CALIFORNIA. .DAY ONE...TODAY MOIST AND UNSTABLE CONDITIONS OVER WESTERN NEVADA AND EASTERN CALIFORNIA WILL PRODUCE SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH SATURDAY THE MOIST AND UNSTABLE CONDITIONS WILL CONTINUE THROUGH EARLY IN THE WEEK WITH DRIER CONDITIONS RETURNING ACROSS THE REGION BY MIDWEEK. .SPOTTER INFORMATION STATEMENT... SKYWARN ACTIVATION MAY BE REQUIRED FOR THE FLASH FLOOD THREAT THIS AFTERNOON. WEATHER SPOTTERS ARE ASKED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.
The Reno radar (KRGX), 71 km away, was scanning. The volume nearest the first event began at 15:56 UTC.
1 tornado. Local standard time, as filed.
A very brief waterspout was reported by the U.S. Coast Guard at Lake Tahoe. The waterspout occurred about 1 mile west of Sand Harbor State Park, or about 5 miles southwest of Incline Village. No injuries or damage occurred.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2003Every state in 2003This day in weather historyThe tornado archive for Nevada, 2003Warnings 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: 5374900.