An EF0 tornado touched down in a rural part of southern Humboldt county. No observable damage was found.
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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 LKN wrote it up.
An EF0 tornado touched down in a rural part of southern Humboldt county. No observable damage was found.
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 Apr 24, 2:30 AM PST, 7 hours 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ELKO NV 330 AM PDT SUN APR 24 2011 .SYNOPSIS...A WEAK AREA OF LOW PRESSURE WILL BRING SCATTERED RAIN SHOWERS AND THE CHANCE FOR AN ISOLATED THUNDERSTORM TODAY. A VIGOROUS JET STREAM WILL BRING STRONG WINDS TO THE GREAT BASIN ON MONDAY. IN ADDITION TO THE WINDY CONDITIONS...A COLD FRONT WILL BRING WIDESPREAD RAIN SHOWERS AND MOUNTAIN SNOW TO NORTHERN NEVADA. COOLER WEATHER AND PARTIAL CLEARING IS EXPECTED BY TUESDAY...WITH A WARMING TREND EXPECTED BY MIDWEEK. && .SHORT TERM...SUNDAY THROUGH TUESDAY. CURRENTLY SCATTERED LIGHT RAIN SHOWERS ARE MOVING THROUGH THE CWA AS MOIST PACIFIC ONSHORE FLOW CONTINUES TO ADVECT INTO THE GREAT BASIN. BY THIS AFTERNOON SHOWER ACTIVITY WILL BECOME MORE WIDESPREAD AND INCREASE IN INTENSITY AS INSTABILITY INCREASES DUE TO A 500MB SHORTWAVE TRACKING ACROSS THE AREA DURING MAX HEATING. NAM12/GFS ARE INDICATING -1 LI VALUES AND UPPER LEVEL LAPSE RATES ARE PROGGED TO STEEPEN...SO KEPT THE ISOLATED CHANCE OF THUNDER GOING IN THE CURRENT FORECAST. QPF AMOUNTS WILL MOSTLY STAY BELOW .10"...BUT LOCALIZED HIGHER AMOUNTS COULD BE POSSIBLE. BRIEF BREAK IN THE ACTION TONIGHT BEFORE AN ANOMALOUS 150KT JET STREAK MOVES OVER CENTRAL NV MONDAY INTO TUESDAY. 700MB WINDS WILL REACH 40-45KTS...ALONG WITH A TIGHTENING SURFACE PRESSURE GRADIENT ON MONDAY SHOULD SUPPORT WIDESPREAD ADVISORY LEVEL WINDS. WINDS BECOME NORTHWEST BEHIND THE COLD FRONT...AS STRONG CAA WORKS INTO NORTHERN NV. SREF 850MB ANOMALIES REACH 3-4 STANDARD DEVIATIONS ACROSS ELKO COUNTY ON MONDAY NIGHT...IN ADDITION 6HR MSLP PRESSURE CHANGE OF 8MB COULD CAUSE LEE-SIDE WINDS ACROSS ELKO COUNTY TO REACH HIGH WIND CRITERIA WITH LOCALIZED GUSTS TO 60MPH POSSIBLE IN RUBY VALLEY AND WEST WENDOVER. HAVE ISSUED A HIGH WIND WATCH TO HIGHLIGHT THIS THREAT. IN ADDITION TO THE WINDS LOCALIZED HEAVY UPSLOPE MOUNTAIN SNOW COULD BE POSSIBLE ACROSS NORTHERN ELKO COUNTY AND THE RUBY MOUNTAINS. PRECIP IS EXPECTED TO START AS RAIN...WITH A FEW ISOLATED TSTMS POSSIBLE MONDAY AFTERNOON...BEFORE CHANGING OVER TO SNOW MONDAY NIGHT. SOME MINOR SNOW ACCUMULATIONS COULD BE POSSIBLE ACROSS THE VALLEYS OF ELKO COUNTY...ESPECIALLY ALONG THE NW SLOPES OF THE RUBY MOUNTAINS (LAMOILLE/SPRING CREEK). ONLY MINOR MOUNTAIN ACCUMULATIONS ARE EXPECTED FOR THE REMAINDER OF THE CWA. SNOW SHOWERS WILL TAPER OFF ALONG WITH THE STRONG DOWNSLOPE WINDS TUESDAY MORNING...PARTIAL CLEARING AND COOL TEMPS EXPECTED TUESDAY AFTERNOON. .LONG TERM...TUESDAY NIGHT THROUGH NEXT SUNDAY. THE FORECAST AREA WILL BE UNDER A NORTHWEST FLOW ALOFT TUESDAY NIGHT. STRONG SURFACE WINDS WILL EVENTUALLY DIMINISH IN THE MORE WIND PRONE AREAS LIKE KTPH...WEST WENDOVER...AND THE LEE-SIDE OF THE RUBIES. COLD AIR...CONTINUING TO FILTER IN FROM THE NORTHWEST DURING THE OVERNIGHT HOURS...MAY MODERATE SOME DURING THE WEDNESDAY AFTERNOON PERIOD AS MODELS INDICATE WARMING 700 MB TEMPERATURES OF +4C IN THE SOUTH TO -4C IN THE NORTH. HAVE KEPT WEDNESDAY AFTERNOON HIGHS SEVERAL DEGREES COOLER AND BELOW NORMAL FOR THIS TIME OF YEAR...MAINLY NORTH OF US50...WITH NEAR OR JUST ABOVE FOR PORTIONS SOUTH OF THIS LINE. 300K ISENTROPIC ANALYSIS DOES SHOW SOME WEAK LIFT IN THE NORTH FOR THE DAY ON WEDNESDAY SO WILL CONTINUE WITH ISOLATED SHOWER ACTIVITY FOR THIS TIME FRAME...MAINLY NORTH OF I-80. THIS SHOULD NOT BRING MUCH IN THE WAY OF ACCUMULATION. DURING THE NIGHT WEDNESDAY AND THURSDAY...SHORTWAVE RIDGING TRANSITIONS ACROSS THE FORECAST AREA QUICKLY WITH THE NEXT TROUGH DROPPING SOUTHEASTWARD FOR THURSDAY. HAVE KEPT ISOLATED POPS IN FOR THE NORTH DURING THIS TIME AS WELL AS THERE ARE SOME TIMING AND STRENGTH DIFFERENCES BETWEEN PROGS. COULD SEE BREEZY CONDITIONS THURSDAY AND WILL WATCH HOW THIS EVENT UNFOLDS. THURSDAY NIGHT INTO FRIDAY MAIN ENERGY WILL MOVE ACROSS THE NORTHERN TIER OF THE UNITED STATES WITH NORTHERN NEVADA RECEIVING THE SOUTHERN END OF THIS SYSTEM. POSSIBLE COLD FRONTAL PASSAGE FRIDAY SO ONCE AGAIN...AFTERNOON TEMPERATURES DROP TO BELOW NORMAL LEVELS. MODELS SOLUTIONS ARE VERY INCONSISTENT FOR THE NEXT WEEKEND PERIOD SO WENT WITH CLIMO POPS AS A RESULT. && .AVIATION...MAINLY VFR CONDITIONS EXPECTED AT KTPH TODAY WITH WDLY SCT MVFR/ISOLD IFR CIGS/VSBY OVER NORTHERN NV THIS AFTERNOON WITH SYSTEM ENCROACHING UPON FORECAST AREA. WINDS GENERALLY SW-W10-20G30KT OVER THE REGION AFTER 18Z TODAY. ISOLD TS POSSIBLE KEKO AND KELY SITES...BUT CONFIDENCE IS AROUND 10 PERCENT AT KEKO AND 20 PERCENT AT KELY. HAVE PLACED CB CLOUD GROUP IN BOTH FORECASTS. && .LKN WATCHES/WARNINGS/ADVISORIES... HIGH WIND WATCH FROM MONDAY AFTERNOON THROUGH TUESDAY MORNING FOR EXTREME EASTERN ELKO COUNTY. HIGH WIND WATCH FROM MONDAY AFTERNOON THROUGH TUESDAY MORNING FOR THE EASTERN SLOPES OF THE RUBY MOUNTAINS/EAST HUMBOLDT RANGE IN THE SOUTHWEST AND SOUTH CENTRAL ELKO COUNTY. && 95/86/86
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ELKO NV 259 AM PDT SUN APR 24 2011 NVZ031>034-251000- NORTHERN ELKO COUNTY-SOUTHWEST AND SOUTH CENTRAL ELKO COUNTY- EXTREME EASTERN ELKO COUNTY-RUBY MOUNTAINS/EAST HUMBOLDT RANGE- 259 AM PDT SUN APR 24 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST NEVADA. .DAY ONE...TODAY AND TONIGHT. NO SIGNIFICANT WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH FRIDAY. A VIGOROUS PACIFIC WEATHER SYSTEM WILL BRUSH ACROSS NORTHERN NEVADA MONDAY INTO TUESDAY. THIS SYSTEM WILL BRING STRONG GUSTY WINDS MONDAY AFTERNOON THROUGH TUESDAY MORNING WITH POSSIBLE GUSTS UP TO 60 MPH...ESPECIALLY OVER MOUNTAINS AND PASSES AND EAST OF THE RUBY MOUNTAINS AND EAST HUMBOLDT RANGE. A HIGH WIND WATCH HAS BEEN ISSUED FOR EXTREME EASTERN ELKO COUNTY AND THE EASTERN SLOPES OF THE RUBY MOUNTAINS AND EAST HUMBOLDT RANGE FROM MONDAY AFTERNOON THROUGH TUESDAY MORNING. LOCALIZED HEAVY MOUNTAIN SNOW IS ALSO POSSIBLE ON MONDAY NIGHT...WITH THE POSSIBILITY OF MINOR ACCUMULATIONS ON VALLEY FLOORS IN ELKO COUNTY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ASKED TO REPORT WEATHER PHENOMENA ACCORDING TO STANDARD OPERATING PROCEDURE. NVZ013-030-035>037-251000- NORTHERN NYE COUNTY-HUMBOLDT COUNTY-WHITE PINE COUNTY- NORTHERN LANDER COUNTY AND NORTHERN EUREKA COUNTY- SOUTHERN LANDER COUNTY AND SOUTHERN EUREKA COUNTY- 259 AM PDT SUN APR 24 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL NEVADA...NORTH CENTRAL NEVADA...NORTHWEST NEVADA AND SOUTH CENTRAL NEVADA. .DAY ONE...TODAY AND TONIGHT. NO SIGNIFICANT WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH FRIDAY. A VIGOROUS PACIFIC WEATHER SYSTEM WILL BRUSH ACROSS NORTHERN NEVADA MONDAY AND TUESDAY. THIS SYSTEM WILL BRING STRONG GUSTY WINDS MONDAY AFTERNOON THROUGH TUESDAY MORNING WITH POSSIBLE GUSTS UP TO 50 MPH...ESPECIALLY OVER MOUNTAINS AND PASSES. IF CONDITIONS CONTINUE TO LOOK FAVORABLE FOR STRONG GUSTY WINDS MONDAY...A WIND ADVISORY WILL BE CONSIDERED AS WE GET CLOSER TO THE EVENT. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ASKED TO REPORT WEATHER PHENOMENA ACCORDING TO STANDARD OPERATING PROCEDURE. MZ/86
The Elko radar (KLRX), 89 km away, was scanning. The volume nearest the first event began at 17:57 UTC.
1 tornado. Local standard time, as filed.
A tornado was seen by several people and was photographed. It was visible for about 5 minutes and occurred in a mostly rural area. Eyewitnesses said the tornado skipped as it moved along. An NWS storm survey could find no visible damage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nevada in 2011Every state in 2011This day in weather historyThe tornado archive for Nevada, 2011Warnings in Nevada, April 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: 291040.