Thunderstorms developed across the northern Sierra and western Nevada on May 30th. Gusty winds and hail were reported across the area.
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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 episode as NWS REV wrote it up.
Thunderstorms developed across the northern Sierra and western Nevada on May 30th. Gusty winds and hail were reported across the area.
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 May 30, 4:20 PM PST, 1 hour 45 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RENO NV 520 PM PDT WED MAY 30 2007 .SHORT TERM UPDATE... ADDED ISOLATED THUNDERSTORMS TO ZONE 3 AS CONVECTION IS FIRING ALONG THE SURFACE THERMAL TROUGH AS IT MOVES SLOWLY INTO EXTREME WESTERN NV. SEVERAL LIGHTNING STRIKES HAVE BEEN OBSERVED WEST OF RENO OVER THE PAST 15 MINUTES OR SO. NUDGED WINDS UPWARD THIS EVENING IN EXTREME WESTERN NV AS THEY WILL PICK UP WITH PASSAGE OF THE THERMAL TROUGH. FINALLY ADDED SOME EVENING CLOUDS TO MINERAL COUNTY BASED ON LATEST SATELLITE IMAGES. NO OTHER CHANGES. RC .PREVIOUS SHORT TERM ISSUED 220 PM... UPPER RIDGE OVER AREA WITH WEAK LOW MOVING INTO SRN CA PER WV IMAGERY. MODELS IN GOOD AGREEMENT THROUGH SHORT TERM WITH RIDGE AXIS/HIGH CENTER JUST EAST OF THE AREA. LIGHT SOUTHEAST FLOW...IF ANY WILL REMAIN INTO SAT AS A RESULT. WITH SFC THERMAL TROUGH IN THE AREA...ON THE WEST SLOPES OF THE SIERRA IN THE MORNING...AND ALONG THE SIERRA FRONT IN THE AFTERNOON...EXPECT THUNDERSTORMS EACH AFTERNOON IN THE SIERRA. MOISTURE FROM MARINE LAYER WILL CONTINUE TO SEEP UP THE SIERRA AND OVER THE CREST PROVIDING THE LIMITED MOISTURE NECESSARY FOR THE AFTERNOON STORMS. MOISTURE WILL GRADUALLY INCREASE THROUGH SATURDAY AND EXPECT THUNDERSTORMS TO EXPAND AREALLY AND INCREASE IN COVERAGE THROUGH THAT PERIOD. SAT APPEARS TO BE THE MOST ACTIVE DAY WITH THE BEST MOISTURE AND AREA WILL BE UNDER NE QUAD OF APPROACHING UPPER LOW FOR UPPER LEVEL DIFFULENCE. WITH STORMS MOVING VERY SLOWLY...BELIEVE STORMS WILL BE WETTER THAN WOULD NORMALLY BE EXPECTED GIVEN THE FAIRLY DRY AIRMASS. BEGINNING THIS AFTERNOON...WILL EXTEND ISOLATED STORMS ALL ALONG SIERRA FROM LASSEN SOUTH TO MONO COUNTY. BUILDUPS FORMING JUST EAST OF LASSEN PEAK COULD DEVELOP INTO STORMS AROUND 00Z. WHILE SUBCLOUD LAYER REMAINS QUITE DRY...STORM MOTION WILL BE ALMOST NON-EXISTENT SO SOME RAIN SHOULD FALL. MICROBURST WINDS COULD ALSO BE A PROBLEM...BUT SHOULD BE LOCALIZED. THURSDAY WILL BE MORE OF A TRANSITION DAY AS MOISTURE CONTINUES TO INCREASE AND INTO EXTREME WRN NV. HAVE EXTENDED STORMS TO WEST OF A HAWTHORNE TO PYRAMID LAKE LINE WITH BEST COVERAGE IN THE SIERRA. EXPECT STORMS TO BE A BIT WETTER...ALTHOUGH STILL FAIRLY DRY...SEE FIRE WX DISCUSSION FOR MORE DETAILS ABOUT ANY FIRE CONCERNS. BY FRIDAY...WITH MOISTURE CONTINUING TO INCREASE...EXPECT MOST STORMS TO BE WET ACROSS THE SIERRA AND EXTREME WRN NV WITH A MIX OF WET/DRY IN THE FALLON/LOVELOCK AREAS. SAT WILL CONTINUE WITH LOW END SCT STORMS SIERRA TO EXTREME WRN NV AND ISOLATED FURTHER EAST. WITH CONFIDENCE HIGH THAT STORMS WILL CONTINUE THE NEXT 3 DAYS HAVE GONE WITH COVERAGE WORDING INSTEAD OF CHANCE TO INDICATE CONFIDENCE. WALLMANN .LONG TERM...SUNDAY THROUGH WEDNESDAY... PERIOD BEGINS WITH SIGNIFICANT RIDGING ALOFT OVER THE GREAT BASIN AND NRN ROCKIES WITH LARGE TROF UPSTREAM OVER THE NE PACIFIC...PER 12Z GFS/ENS MEANS AND ECMWF. SUNDAY LOOKS TO BE THE LAST DAY OF APPRECIABLE DIURNAL CONVECTION OVER THE CWA...WITH ENS MEAN SHOWING PW VALUES 1-1.5 STD DEV ABOVE NORMAL AT 00Z/MON OVER WRN NV. HAVE EXPANDED SLT CHC -TSRA OVER MOST OF THE CWA FOR SUN AFTN/EVE. MONDAY INTO MID-WEEK...UPPER TROF OFF THE COAST MAKES A SLOW PUSH E/NE...WITH FLOW OVER THE REGION BECOMING MORE ZONAL BY WEDNESDAY. THIS SHOULD HELP COOL TEMPS SLIGHTLY...BUT THEY WILL STILL LIKELY BE ABOVE NORMAL DURING THE PERIOD. HOWEVER TELECONNECTIONS ARE SHOWING MIXED SIGNALS TEMPERATURE WISE FOR NEXT WEEK...AND NCEP RMOP IS INDICATING SO-SO PREDICTABILITY REGARDING MOVEMENT OF RIDGE/UPSTREAM TROF EARLY NEXT WEEK...SO DEFINITELY SOME UNCERTAINTY REGARDING THE OVERALL PATTERN. CONVECTIVE CHCS WILL BY FOCUSED WELL NE OF THE CWA MON-WED...BUT A FEW AFTN BUILDUPS CERTAINLY POSSIBLE IN THE FAVORED CONVERGENCE ZONES. MON-TUE AFTNS COULD GET A LITTLE BREEZY (15KTS AT 700MB) BUT NOTHING AS HIGH AS PREV RUNS OF THE GFS WERE SHOWING (25KTS+). CS && .AVIATION... PREDOMINANTLY VFR DURING THE PERIOD WITH THE EXCEPTION OF ISLTD TSRA POSSIBLE OVER THE SIERRA THROUGH 4Z PRODUCING LOCAL MVFR CONDITIONS ALONG WITH STRONG GUSTY WINDS. MAY HAVE TO CONSIDER SOME VSBY RESTRICTIONS AT TRK FOR THURS MORNING GIVEN PAST TWO DAYS WHERE FG DEVELOPED 12Z EACH DAY. TSRA CHANCES ARE BETTER TOMORROW OVER SIERRA...AND MAY EVEN MOVE CLOSE TO THE RNO TERMINAL AFTER 20Z. && .FIRE WEATHER... TEMPERATURES CONTINUE TO CLIMB MUCH ABOVE NORMAL WITH VERY DRY AIR IN THE LOWER LEVELS UNDER STRONG HIGH PRESSURE. HUMIDITY RECOVERIES WILL CONTINUE TO BE POOR TONIGHT...MAINLY ON MIDSLOPES AND UPPER ELEVATIONS...HOWEVER RHS WILL SLOWLY RISE OVER THE NEXT FEW DAYS. WEAK UPPER DISTURBANCE OFF THE SRN CALIFORNIA COAST CURRENTLY BRINGING HIGHER DEW POINTS INTO THE REGION UNDER SELY FLOW. WITH INCREASING MOISTURE AND INSTABILITY OVER THE REGION...CHANCES FOR AFTERNOON SHOWERS AND THUNDERSTORMS INCREASE EACH DAY AS WELL. AS FAR AS CRITICAL DRY LIGHTNING OR POSSIBLE RED FLAG CONDITIONS...FEEL THAT THURSDAY WILL BE THE MOST CRITICAL DAY OVER FWZ273 WHERE FUELS ARE THE DRIEST. FUELS FROM THE TAHOE BASIN NORTH HAVE NOT FULLY CURED AND REACHED THE CRITICAL STAGE...SO HAVED RULED OUT RFWS FOR THOSE AREAS ALTHOUGH THUNDERSTORMS ARE EXPECTED TO BE MAINLY DRY. THUNDERSTORM CHANCES REALLY PICK UP ON FRIDAY AND SATURDAY WITH INCREASING MOISTURE BRINGING BETTER CHANCES FOR WETTING RAIN. THUNDERSTORMS ARE MAINLY EXPECTED NEAR THE SIERRA CREST BOTH DAYS...HOWEVER WEST WINDS AS WELL AS THUNDERSTORM OUTFLOWS WILL BLOW STORMS OFF THE CREST INTO WRN NEVADA. THIS COULD POSE A PROBLEM BOTH DAYS FOR FWZ450 AND 459 WITH VERY DRY FUELS IN THOSE AREAS. WILL HAVE TO SEE HOW THE STORMS LOOK LATER TODAY AND AGAIN ON THURSDAY BEFORE MAKING A DECISION ON THUNDERSTORM COVERAGE AND POSSIBLE FIRE WEATHER WATCH FOR THE MENTIONED TIMES AND AREAS. JORDAN && .REV WATCHES/WARNINGS/ADVISORIES... NV...NONE. CA...NONE. && HTTP://WEATHER.GOV/RENO
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RENO NV 309 PM PDT WED MAY 30 2007 CAZ072-302245- GREATER LAKE TAHOE AREA- 309 PM PDT WED MAY 30 2007 ...THUNDERSTORMS DEVELOPING NEAR LAKE TAHOE... AT 302 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING THUNDERSTORMS...SOME STRONG...ALONG A LINE EXTENDING FROM BLISS STATE PARK TO MEYERS...OR ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF SOUTH LAKE TAHOE TO MEYERS...AND MOVING NORTHEAST AT 5 MPH. DEADLY LIGHTNING AND GUSTY WINDS OF AROUND TO 40 MPH...ARE POSSIBLE WITH THESE STORMS. THESE STORMS...GIVEN THEIR SLOW MOVEMENT...MAY ALSO PRODUCE A PERIOD OF HEAVY RAINFALL. THESE STORMS WILL AFFECT LOCATIONS NEAR THE SOUTHERN AND WESTERN SHORES OF LAKE TAHOE THROUGH 345 PM PDT...INCLUDING HIGHWAY 89 AND EMERALD BAY. IF ON OR NEAR AN AREA LAKE GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A VEHICLE NOW. DONT BE CAUGHT ON THE WATER IN A THUNDERSTORM. IF YOU ARE IN THE PATH OF THESE STORMS...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO... WEATHER.GOV/RENO ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES AND POSSIBLE WARNINGS. CS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RENO NV 539 PM PDT WED MAY 30 2007 CAZ072-NVZ002-310115- GREATER LAKE TAHOE AREA- 539 PM PDT WED MAY 30 2007 ...STRONG THUNDERSTORM WEST OF RENO ALONG I-80... AT 533 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR FLORISTON...OR NEAR BOCA RESERVOIR...AND MOVING SOUTHWEST AT 5 MPH. OCCASIONAL LIGHTNING...MODERATE TO HEAVY RAIN RAIN WITH RAINFALL AMOUNTS OF AROUND ONE HALF INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN THREE MILES...AND GUSTY WINDS OF AROUND 30 TO 40 MPH... ARE POSSIBLE WITH THIS STORM. THIS STORM WILL BE... NEAR BOCA RESERVOIR BY 550 PM PDT. NEAR HIRSCHDALE BY 600 PM PDT. NEAR GLENSHIRE-DEVONSHIRE BY 620 PM PDT. WATCH FOR PONDING OF WATER ON LOCAL ROADWAYS. DRIVERS SHOULD SLOW DOWN AND TURN ON THEIR HEADLIGHTS IF ENCOUNTERING HEAVY RAINS. TRAVELERS ON I-80 WEST OF THE CALIFORNIA-NEVADA STATE LINE WILL LIKELY ENCOUNTER THIS STORM. IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO... WEATHER.GOV/RENO ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES AND POSSIBLE WARNINGS. CS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RENO NV 630 PM PDT WED MAY 30 2007 CAZ071-NVZ003-310205- GREATER RENO-CARSON CITY-MINDEN AREA-LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES- 630 PM PDT WED MAY 30 2007 ...STRONG THUNDERSTORM DEVELOPING NORTHWEST OF RENO... AT 624 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 2 MILES NORTH OF COLD SPRINGS VALLEY...AND MOVING SOUTH AT 5 MPH. OCCASIONAL LIGHTNING...MODERATE TO HEAVY RAIN WITH RAINFALL AMOUNTS OF AROUND ONE HALF INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN THREE MILES...AND GUSTY WINDS OF AROUND 30 TO 40 MPH...ARE EXPECTED WITH THIS STORM. THIS STORM WILL BE... NEAR COLD SPRINGS VALLEY BY 645 PM PDT. NEAR STEAD BY 655 PM PDT. IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO... WEATHER.GOV/RENO ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES AND POSSIBLE WARNINGS. CS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RENO NV 635 PM PDT WED MAY 30 2007 CAZ071-310210- LASSEN-EASTERN PLUMAS-EASTERN SIERRA COUNTIES- 635 PM PDT WED MAY 30 2007 ...STRONG THUNDERSTORM OVER FAR NORTHERN LASSEN COUNTY... AT 629 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 3 MILES SOUTH OF JANESVILLE...OR 26 MILES WEST OF HERLONG. THIS STORM WAS MOVING VERY SLOWLY TO THE NORTHEAST. OCCASIONAL LIGHTNING...MODERATE TO HEAVY RAIN WITH RAINFALL AMOUNTS OF AROUND ONE HALF INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN THREE MILES...AND GUSTY WINDS OF AROUND 30 TO 40 MPH...ARE EXPECTED WITH THIS STORM. THIS STORM WILL BE... NEAR JANESVILLE BY 710 PM PDT. IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO... WEATHER.GOV/RENO ON THE INTERNET...OR LOCAL MEDIA FOR LATER UPDATES AND POSSIBLE WARNINGS. CS
The Reno radar (KRGX), 31 km away, was scanning. The volume nearest the first event began at 02:07 UTC.
1 hail. Local standard time, as filed.
An off-duty National Weather Service employee reported hail of 0.75 inch diameter in Cold Springs Valley north of Reno.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2007Every state in 2007This day in weather historyWarnings in Nevada, May 2007
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: 26090.