Heavy rain from a thunderstorm caused debris and mud to flow over state route 377 between Manhattan and state route 376. Some washouts were also reported.
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 episode as NWS LKN wrote it up.
Heavy rain from a thunderstorm caused debris and mud to flow over state route 377 between Manhattan and state route 376. Some washouts were also reported.
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 Jul 31, 2:00 PM PST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ELKO NV 300 PM PDT SUN JUL 31 2011 .SYNOPSIS...MONSOON MOISTURE WILL CONTINUE TO PUSH ACROSS THE SILVER STATE THROUGH MONDAY. EXPECT THUNDERSTORMS ACROSS NEVADA THIS EVENING THROUGH WEDNESDAY. LOCALIZED FLOODING IS POSSIBLE THROUGH THIS EVENING IN CENTRAL AND EASTERN NEVADA. DRIER AIR MOVES IN BEGINNING WEDNESDAY. && .SHORT TERM...TONIGHT THROUGH TUESDAY. BIG NOAM RIDGE STILL IN PLACE ACROSS NEARLY ENTIRE CONTINENT. THIS IS PULLING DEEP MONSOON MOISTURE INTO NEVADA AND WILL CONTINUE THROUGH THIS PERIOD. WARM TEMPS AT SURFACE DRIVING WEAK TO MODERATE INSTABILITY. THIS IS ENABLING MORE EFFECTIVE RAIN STORMS...RATHER THAN ORGANIZED SEVERE WEATHER. FLASH FLOOD WATCH IN EFFECT UNTIL 9 PM TONIGHT...WOULD BE INCLINED TO LET IT EXPIRE THEN...AND HANDLE ANY FLOODING WITH ISOLATED WARNINGS...BUT WILL LET EVENING SHIFT DECIDE. REALLY...NAM AND GFS ARE IN GOOD AGREEMENT ON MOST OF THE DETAILS OF THE FORECAST IN THE SHORT TERM...SO HAVE LET MOST OF THE GRIDS STAY AS IS. MAIN TWEAKS WERE IN DROPPING POPS IN HUMBOLDT COUNTY...AND EASING OFF ON WINDS TONIGHT AND TOMORROW IN WHITE PINE COUNTY. .LONG TERM...TUESDAY NIGHT THROUGH NEXT SUNDAY. GOOD AGREEMENT IN THE MODELS FOR THE LONG TERM...WITH DEPARTING MOISTURE TO START...THEN STAYING DRY THROUGH NEXT WEEKEND. ENOUGH MOISTURE AND INSTABILITY FOR SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN EASTERN ZONES THROUGH WEDNESDAY AFTERNOON. LATEST GFS HAS BACKED OFF ON INSTABILITY AND MOISTURE THAT IT WAS SHOWING THURSDAY AFTERNOON IN EXTREME NORTHEAST NEVADA...EURO HAS BACKED OFF SOME BUT NOT AS MUCH...SO SPLIT THE DIFFERENCE AND LOWERED POPS BUT STILL LEFT AN AREA OF SLIGHT CHANCE. FRIDAY THROUGH SUNDAY SHOULD BE QUIET...WARM AND DRY WITH SOUTHWEST FLOW. && .AVIATION...OVERALL EXPECTING VFR CONDITIONS OVER THE NEXT 24 HOURS. COULD SEE SOME LOWER CIGS AND VISIBILITY IF A HEAVY SHOWER OR THUNDERSTORM ACTUALLY PASSES OVER ANY TAF SITE...BUT GENERALLY JUST EXPECTING SCATTERED ACTIVITY. FOLLOWING ANOTHER DAY OF POTENTIAL RAIN NEAR KELY...MODELS ARE INDICATING LIGHT FOG OVERNIGHT. IF IT DEVELOPS...MAY SEE MVFR AT KELY. && .FIRE WEATHER...PERSISTANT MONSOON FLOW CONTINUES TO PROVIDE FUEL FOR THUNDERSTORMS AND SHOWERS ACROSS MOST OF THE REGION. MOST THUNDERSTORMS WILL BE WET...BUT WILL PRODUCE FREQUENT LIGHTNING. MOST ACTIVE AREA HAD BEEN ZONE 455 WITH MODERATE TO HEAVY RAINS OVER THE LAST TWO DAYS. CURRENTLY...AND INTO TONIGHT...ZONES 457 AND 454 WILL BE THE AREAS TO WATCH MOST CLOSELY. ZONE 467 HAS BEEN DRY THE LONGEST AND CONVECTION IS GOING TO BECOME A PROBLEM THERE TONIGHT. LIGHTNING DETECTION EQUIPMENT DEPICTS LOCATIONS OF CLOUD- TO-GROUND STRIKES ON THE EDGES OF STORMS...WHERE THE LEAST (IF ANY) RAIN FALLS. THIS PATTERN WILL CONTINUE THROUGH TUESDAY... UNTIL MOISTURE TENDS TO MOVE OFF TO THE EAST AROUND MID WEEK. && .LKN WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH UNTIL 9 PM PDT THIS EVENING FOR NORTHERN NYE COUNTY...SOUTHERN LANDER COUNTY AND SOUTHERN EUREKA COUNTY... WHITE PINE COUNTY. && 98/94/94/98
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ELKO NV 318 PM PDT SUN JUL 31 2011 NVZ013-035-037-012230- NORTHERN NYE COUNTY-WHITE PINE COUNTY- SOUTHERN LANDER COUNTY AND SOUTHERN EUREKA COUNTY- 318 PM PDT SUN JUL 31 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL NEVADA...NORTH CENTRAL NEVADA AND SOUTH CENTRAL NEVADA. .DAY ONE...THIS AFTERNOON AND TONIGHT. THUNDERSTORMS AND LOCALIZED HEAVY PRECIPITATION ARE FORECAST FOR THIS AFTERNOON AND TONIGHT. MONSOON FLOW WILL TRIGGER THUNDERSTORM ACTIVITY AND THERE IS THE POTENTIAL FOR FLASH FLOODING THROUGH 9 PM PDT TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. MORE THUNDERSTORMS ARE PROJECTED FOR MONDAY...TUESDAY AND WEDNESDAY. DRIER WEATHER WILL MOVE BACK INTO PLACE BY THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ASKED TO REPORT WEATHER PHENOMENA ACCORDING TO STANDARD OPERATING PROCEDURE. NVZ030>034-036-012230- HUMBOLDT COUNTY-NORTHERN ELKO COUNTY- SOUTHWEST AND SOUTH CENTRAL ELKO COUNTY- EXTREME EASTERN ELKO COUNTY-RUBY MOUNTAINS/EAST HUMBOLDT RANGE- NORTHERN LANDER COUNTY AND NORTHERN EUREKA COUNTY- 318 PM PDT SUN JUL 31 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL NEVADA...NORTHEAST NEVADA AND NORTHWEST NEVADA. .DAY ONE...THIS AFTERNOON AND TONIGHT. ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS PORTIONS OF NORTHERN NEVADA THIS AFTERNOON AND CONTINUE INTO THE EVENING. SOME STORMS MAY PRODUCE HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. MORE THUNDERSTORMS ARE PROJECTED FOR MONDAY...TUESDAY AND WEDNESDAY. DRIER WEATHER WILL MOVE BACK INTO PLACE BY THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ASKED TO REPORT WEATHER PHENOMENA ACCORDING TO STANDARD OPERATING PROCEDURE. BOYD
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ELKO NV 138 PM PDT SUN JUL 31 2011 NVZ037-312115- SOUTHERN LANDER COUNTY AND SOUTHERN EUREKA COUNTY NV- 138 PM PDT SUN JUL 31 2011 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN LANDER AND CENTRAL EUREKA COUNTIES UNTIL 215 PM PDT... AT 136 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 15 MILES NORTH OF HICKISON SUMMIT...MOVING EAST AT 35 MPH. WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. * LOCATIONS IMPACTED INCLUDE... RURAL EASTERN LANDER COUNTY... RURAL WESTERN EUREKA COUNTY... RURAL CENTRAL EUREKA COUNTY... THE STORM WAS APPROACHING THE LANDER...EUREKA LINE NEAR THE SOUTHERN END OF GRASS VALLEY. IT WILL AFFECT THE SIMPSON PARK MOUNTAINS... COILS CREEK...AND THE ROBERTS MOUNTAINS. ANY STREAMS FLOWING OUT OF THE MOUNTAINS WILL BE SUBJECT TO MINOR FLOODING. ALSO...STRONG GUSTY CROSS WINDS ARE LIKELY ON ALL ROADS IN THE AREA. && LAT...LON 3992 11629 3960 11615 3952 11672 3969 11680 TIME...MOT...LOC 2035Z 248DEG 28KT 3964 11665 BOYD
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ELKO NV 227 PM PDT SUN JUL 31 2011 NVZ037-312200- SOUTHERN LANDER COUNTY AND SOUTHERN EUREKA COUNTY NV- 227 PM PDT SUN JUL 31 2011 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL EUREKA COUNTY UNTIL 300 PM PDT... AT 224 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 15 MILES SOUTHWEST OF GARDEN PASS...MOVING EAST AT 20 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MAINLY RURAL AREAS OF CENTRAL EUREKA COUNTY. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. && LAT...LON 3986 11622 3966 11610 3960 11644 3971 11646 TIME...MOT...LOC 2127Z 248DEG 16KT 3970 11637 MZ
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
239 PM PDT SUN JUL 31 2011
NVZ031-312215-
NORTHERN ELKO COUNTY NV-
239 PM PDT SUN JUL 31 2011
...SIGNIFICANT WEATHER ADVISORY FOR EXTREME NORTHERN ELKO COUNTY
UNTIL 315 PM PDT...
AT 237 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 14 MILES NORTHWEST OF JARBIDGE...MOVING NORTHEAST
AT 20 MPH.
HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.
LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MAINLY RURAL AREAS
OF EXTREME NORTHERN ELKO COUNTY.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
&&
LAT...LON 4189 11545 4188 11571 4200 11575 4201 11574
4201 11543 4200 11542
TIME...MOT...LOC 2139Z 231DEG 17KT 4198 11565
MZSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
302 PM PDT SUN JUL 31 2011
NVZ030-312230-
HUMBOLDT COUNTY NV-
302 PM PDT SUN JUL 31 2011
...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN HUMBOLDT COUNTY UNTIL
330 PM PDT...
AT 259 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 7 MILES NORTH OF LEONARD CREEK RANCH...MOVING
NORTHEAST AT 30 MPH.
HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.
LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...DENIO...AND PORTIONS
OF STATE ROUTE 140 SOUTH OF DENIO.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
&&
LAT...LON 4178 11830 4157 11869 4172 11888 4201 11862
4201 11857
TIME...MOT...LOC 2202Z 229DEG 24KT 4174 11865
MZSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ELKO NV 325 PM PDT SUN JUL 31 2011 NVZ035-037-312315- SOUTHERN LANDER COUNTY AND SOUTHERN EUREKA COUNTY NV-WHITE PINE COUNTY NV- 325 PM PDT SUN JUL 31 2011 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN EUREKA AND WESTERN WHITE PINE COUNTIES UNTIL 415 PM PDT... AT 324 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5 MILES WEST OF EUREKA AIRPORT...MOVING EAST AT 35 MPH. WIND GUSTS UP TO 45 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. SOME LOCAL MINOR FLOODING OF ROADS MAY OCCUR. STRONG GUSTY CROSS WINDS WILL MAKE DRIVING DIFFICULT. * LOCATIONS IMPACTED INCLUDE... EUREKA AIRPORT AND DIAMOND VALLEY... EUREKA AND PINTO SUMMIT... HIGHWAYS 278 AND 228... THIS STORM MAY INTENSIFY...SO BE SURE TO MONITOR LOCAL MEDIA AND NOAA WEATHER RADIO...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. && LAT...LON 3982 11546 3943 11541 3939 11621 3970 11625 TIME...MOT...LOC 2224Z 264DEG 32KT 3958 11609 BOYD
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ELKO NV
332 PM PDT SUN JUL 31 2011
NVZ030-312315-
HUMBOLDT COUNTY NV-
332 PM PDT SUN JUL 31 2011
...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL HUMBOLDT COUNTY UNTIL 415
PM PDT...
AT 330 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM DENIO TO 7 MILES
NORTHEAST OF LEONARD CREEK RANCH TO 17 MILES SOUTH OF LEONARD CREEK
RANCH...AND MOVING EAST AT 15 MPH.
WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
FREQUENT DANGEROUS LIGHTNING...AND BRIEF HEAVY RAINS.
LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...HIGHWAY 140.
THESE STORMS HAVE BEEN PULSING UP AND DOWN...SO JUST BECAUSE ONE
SEEMS TO HAVE WEAKENED...DO NOT BE FOOLED. IT WILL LIKELY STRENGTHEN
AGAIN. THE GUSTY WINDS FROM THE STORMS WILL MAKE DRIVING DIFFICULT.
STAY TUNED FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE
NATIONAL WEATHER SERVICE.
&&
LAT...LON 4172 11823 4130 11832 4129 11885 4171 11876
4200 11873 4201 11819
TIME...MOT...LOC 2230Z 269DEG 15KT 4201 11860 4171 11864
4138 11871
BOYDThe Reno radar (KRGX), 244 km away, was scanning. The volume nearest the first event began at 23:01 UTC.
1 flash flood. Local standard time, as filed.
Heavy rain from a thunderstorm caused debris and mud to flow over state route 377 between Manhattan and state route 376. Also some washouts on the road were reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2011Every state in 2011This day in weather historyWarnings in Nevada, July 2011
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: 327979.