1 flash flood, 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 Elko, NV wrote its last area forecast discussion before the first event at Aug 21, 7:46 AM PST, 3 hours 21 minutes earlier.
NORTHERN GREAT BASIN FORECAST DISCUSSION NATIONAL WEATHER SERVICE ELKO NV 846 AM PDT THU AUG 21 2003 VISUAL IMAGERY SHOWING SOME CLEARING FROM THE SOUTH. BELIEVE THIS WILL ONLY ENHANCE THIS AFTERNOONS CONVECTION WITH SOME DIURNAL HEATING. MODELS SHOW THIS AS WELL...WITH QPFS SPREADING WESTWARD THIS MORNING AND THEN SHIFTING EAST THIS AFTERNOON. HUMBOLDT PROG SOUNDING SHOWS OVER AN INCH PRECIPITABLE WATER THIS AFTERNOON AND 6 HOUR QPFS SHOW ALMOST THREE TENTHS OF AN INCH...SO WILL ADD HUMBOLDT COUNTY INTO FLASH FLOOD WATCH THIS AFTERNOON AND EVENING. SOME PRETTY GOOD VALUES THIS AFTERNOON...WITH QPFS UP TO A QUARTER INCH OVER THE CENTRAL FORECAST AREA. WILL KEEP SHOWERS IN ALL DAY. TOMORROW LOOKS VERY INTERESTING. 70KT JET PUSHES IN FROM WEST IN THE AFTERNOON. NEG 4 LIS OVER WHITE PINE WITH NEG 2 COVERING REST OF FORECAST AREA. SEVERE WEATHER IS DEFINITELY A POSSIBILITY TOMORROW WITH SOME SLIGHT DRYING IN THE MID LEVELS AND ALL THE DYNAMICS COMING TOGETHER OVER THE EASTERN HALF OF THE FORECAST AREA. WILL UPDATE THE MORNING PACKAGE FOR HUMBOLDT AND WILL PROBABLY ADD SEVERE THUNDERSTORMS IN THE AFTERNOON PACKAGE FOR FRIDAY AFTERNOON. .EKO...NVZ030>037 FLASH FLOOD WATCH THIS AFTERNOON AND EVENING. CLAYCOMB
NVZ030>037-221400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ELKO NV 338 AM PDT THU AUG 21 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND EAST CENTRAL NEVADA .DAY ONE... FLASH FLOOD WATCH FOR EAST CENTRAL AND NORTHERN NEVADA FOR THIS AFTERNOON AND EVENING. SEE FFALKN FOR DETAILS. A MOIST AIRMASS REMAINS ACROSS CENTRAL AND NORTHERN NEVADA TODAY. SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP ACROSS EAST CENTRAL AND NORTHERN NEVADA TODAY AND TONIGHT AND SOME STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN... ON FRIDAY A DISTURBANCE WILL MOVE ACROSS THE GREAT BASIN ACCOMPANIED BY STRONG UPPER LEVEL WINDS WHICH WILL AID IN THE DEVELOPMENT OF THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. SEDLOCK
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Flash floods washed mud and debris onto Interstate 80 closing the highway for about 3 hours.
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: 5379981.