1 heavy rain, 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 Jul 28, 2:00 PM PST, 5 hours 25 minutes earlier.
WESTERN NEVADA AND EASTERN CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RENO NV 300 PM PDT MON JUL 28 2003 SUBSIDENCE CAP HOLDING BACK DEEPER CONVECTION THIS AFTERNOON EXCEPT OVER MONO AND SOUTHERN MINERAL COUNTIES WHERE BETTER SYNOPTIC SCALE LIFT OCCURING WITH CONV/DIV COUPLET. MODELS FORECAST SIMILAR PATTERN ON TUESDAY AND WED WITH BEST FOCUSING OVER SIERRA FROM TAHOE SWD AND ISOLD MAINLY OVR MTNS ELSEWHERE. UPPER HIGH REMAINS OVER NV INTO WED WITH ABOVE NORMAL TEMPS AND LIGHT WINDS. REMNANT MOISTURE FM SRN CA AND ARIZONA WILL CONTINUE TO DRIFT AROUND PERIPHERY OF NV HIGH CELL CLIPPING MAINLY THE SRN AND CENTRAL SIERRA AS IT MOVES NWWD. BY WED NIGHT FLOW BECOMING MORE SLY WITH CLOUDS SPREADING OVER MUCH OF CWA ALONG WITH POSSIBLE ISOLATED SHOWERS ALONG SIERRA. ON THURSDAY UPR HI CENTER MOVES EWD INTO UTAH WITH COOLING ALOFT BREAKING SUBSIDENCE CAP ALONG WITH BETTER TRAJECTORY OF MOISTURE AND VORT MAXES INTO AREA. MODELS GENERATE AROUND A QUARTER OF AN INCH QPF OVER SIERRA FROM SRN LASSEN S INTO MONO COUNTY BY THU PM WITH AROUND A TENTH INTO WRN NV VALLEYS S OF I80. WILL INCREASE CLOUDS AND POPS THURSDAY AND LOWER TEMPS DUE TO CLOUDS AND THICKNESS COOLING. WILL KEEP POPS IN 40-50 PCT RANGE THURSDAY FOR SIERRA BUT COULD GO HIGHER IF MODELS LATER BEGIN TO SHOW RUN TO RUN CONSISTENCY. CYLKE IN THE EXTENDED...FRIDAY THROUGH MONDAY... LONG RANGE MODELS CONTINUE TO SHOW A STRONG RIDGE OVER THE WESTERN CONUS THROUGH THE EXTENDED. UPPER TROUGH OVER THE EASTERN PACIFIC STARTS TO MOVE NORTH IN RESPONSE TO THE RIDGE BUILDING BACK TO THE WEST. SOUTHERLY FLOW WILL CONTINUE OVER THE KREV CWFA FRIDAY AND SATURDAY. THIS WILL ADVECT MOISTURE INTO THE REGION. THE TROUGH OVER THE REGION WILL ALSO HELP TO ENHANCE LOW LEVEL INSTABILITY. WILL CONTINUE SLIGHT CHANCE OF TSRA FRIDAY AND SATURDAY AND ON INTO SUNDAY AS TROUGH MOVES TO SIERRA. AS HIGH BUILDS IN ON MONDAY TROUGH WILL WEAKEN SUBSTANTIALLY. WILL GO WITH A DRY FORECAST FOR MONDAY. LATEST GFS IS ADVERTIZING DAYTIME TEMPERATURES NEAR THE MIDDLE 80S BY SATURDAY. EVEN WITH CLOUD COVER BELIEVE THIS IS TOO COOL WITH THE SOUTHERLY FLOW OVER THE REGION. WILL CONTINUE WITH HIGHS NEAR 90. OHARA .REV...NONE.
CAZ070>073-NVZ001>005-291400- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RENO NV 640 AM PDT MON JUL 28 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NEVADA...THE EASTERN SIERRA AND NORTHEASTERN CALIFORNIA. .DAY ONE...TODAY SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND PERSIST THROUGH THE EVENING. THE STORMS WILL MAINLY BE FOCUSED ALONG THE SIERRA CREST BUT WILL INCREASE IN COVERAGE EAST OF THE SIERRA LATER IN THE AFTERNOON. THERE IS A SLIGHT CHANCE THAT THUNDERSTORM ACTIVITY WILL CONTINUE AFTER DARK NORTH OF LAKE TAHOE. HEAVY RAINFALL WITH EXCESSIVE RUNOFF...LARGE HAIL...DANGEROUS LIGHTNING AND STRONG WINDS CAUSING BLOWING DUST MAY ACCOMPANY THESE STORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE MOIST AND UNSTABLE PATTERN CONTINUES GIVING THE AREA A CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS THROUGH THE PERIOD. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS AND EMERGENCY MANAGERS ARE URGED TO MONITOR FORECASTS AND RELATED MESSAGES AND BE PREPARED FOR POSSIBLE ACTIVATION TODAY. IN ADDITION...WEATHER SPOTTERS ARE ASKED TO REPORT SIGNIFICANT WEATHER CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
A weather spotter estimated that .25 inches of rain fell in 10 minutes from a thunderstorm. Minor street flooding was observed.
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, July 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: 5376091.