Isolated thunderstorms developed over southwestern Nebraska during the mid evening hours of July 7th. Storms produced heavy rain and some severe winds across Chase county.
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 LBF wrote it up.
Isolated thunderstorms developed over southwestern Nebraska during the mid evening hours of July 7th. Storms produced heavy rain and some severe winds across Chase county.
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 North Platte, NE wrote its last area forecast discussion before the first event at Jul 7, 4:34 PM MST, 4 hours 52 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
634 PM CDT SAT JUL 7 2012
.UPDATE...
.AVIATION...
BEST GUESS USING TIMING TOOLS IS THE UA DISTURBANCE AND CONVECTION
ACROSS KS/COLO WOULD REACH KLBF AROUND 10Z...KIML 06Z...KOGA 09Z.
THAT IS ASSUMING STEADY STATE AND NO NEW DEVELOPMENT WHICH MAY NOT
BE A GOOD APPROXIMATION IN THIS TYPE OF ENVIRONMENT WHICH FEATURES
ABOUT 50 PERCENT DISCRETE DEVELOPMENT.
OTHERWISE THE BEST CHANCE FOR TSTMS TONIGHT WOULD APPEAR TO BE ALONG
AND WEST OF HIGHWAY 61 SOUTH OF KAIA. STORM ACTIVITY IF IT DEVELOPS
MAY CONTINUE THROUGH 18Z SUNDAY. VFR IS EXPECTED EAST OF HIGHWAY
83. MVFR CIGS ARE POSSIBLE OVERNIGHT ALONG AND WEST OF HIGHWAY 83.
FCST CONFIDENCE IS LOW AS IT APPEARS THE MODELS MAY BE OVERFCSTING
CLOUD HEIGHTS AND COVERAGE.
&&
.PREV DISCUSSION... /ISSUED 255 PM CDT SAT JUL 7 2012/
SYNOPSIS...
HAND ANALYSIS OF THE 18Z MSL DATA SHOWED A STATIONARY BOUNDARY
ACROSS THE EASTERN PLAINS OF MONTANA...WYOMING AND COLORADO.
OPEN-CELLED CUMULUS CLOUDS ACROSS EASTERN COLORADO AND WESTERN
NEBRASKA GAVE INDICATION OF INSTABILITY. ACCORDING TO DERIVED TOTAL
PRECIPITABLE WATER...THERE WAS PLENTY OF MOISTURE ACROSS EASTERN
COLORADO AS WELL AS KANSAS AND NEBRASKA ON THE ORDER OF 27-34MM
(1-1.4 INCH). THE WATER VAPOR IMAGERY SHOWED TWO PLUMES OF
MOISTURE...ONE FROM NORTHWEST MEXICO AND THE OTHER FROM TEXAS AND
OKLAHOMA. THE PLUMES APPEAR TO BE SUPERIMPOSED OVER WESTERN
NEBRASKA.
SHORT TERM...TONIGHT THROUGH SUNDAY NIGHT.
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE SURFACE BOUNDARY
ACROSS EASTERN WYOMING AND NORTHEAST COLORADO THIS EVENING AND INTO
SUNDAY. STORMS WILL THEN SPREAD INTO THE NEBRASKA PANHANDLE AND
PARTS OF SOUTHWEST NEBRASKA. WITH PRECIPITABLE WATER VALUES OF MORE
THAN AN INCH EVEN AS FAR WEST AS DENVER AND SUPERIMPOSITION OF THE
LOW LEVEL AND MID LEVEL MOISTURE PLUMES...HEAVY RAIN IS POSSIBLE.
LONG TERM...MONDAY THROUGH SATURDAY.
AS HIGH PRESSURE FORCES THE BOUNDARY TO THE SOUTH AND
WEST...RAINFALL POTENTIAL WILL SLIP BACK INTO COLORADO AND KANSAS
SUNDAY NIGHT AND MONDAY AND THE PREVAILING UPPER FLOW BECOMES NORTH
NORTHWEST. THEN...PRECIPITATION IS UNLIKELY UNTIL NEAR THE END OF
THE WEEK WHEN THE LEE SIDE TROUGH BECOMES BETTER DEFINED AND AN
UPPER TROUGH COMES OVER THE NORTHERN PLAINS.
AVIATION...
MONSOON FLOW ACROSS THE ROCKIES WILL INCREASE MOISTURE WITH A
HIGH CHANCE FOR PRECIPITATION ACROSS WESTERN NEBRASKA. LESS
CONFIDENCE ACTIVITY WILL STAY TOGETHER AS IT MOVES EAST...TOWARDS
THE TAF SITES. MODELS HAVE HIGHER POPS FOR KLBF AND DID INCLUDE A
VCSH FOR NOW...STILL DRY FOR KVTN...AND WILL MONITOR. MOSTLY CLEAR
SKIES SHOULD BECOME BKN/OVC THIS EVENING...ABOVE 3K FT AGL AT THE
TERMINAL SITES INITIALLY...HOWEVER EXPECT LOWERING CIGS OVERNIGHT TO
MVFR. ANY MVFR CONDITIONS ARE EXPECTED TO LIFT ALONG THE TAF SITE
CORRIDOR IN THE MORNING...HOWEVER THERE IS A SMALL POSSIBLE CIGS
REMAIN LOW THROUGH 18Z.
HYDROLOGY...
THERE IS POTENTIAL FOR HEAVY RAIN AS STORMS COME INTO SOUTHWEST
NEBRASKA. IF IT OCCURS DOWNSTREAM OF KINGSLEY DAM...IT COULD AFFECT
THE LEVELS ON THE NORTH PLATTE RIVER WHICH IS JUST BELOW FLOOD STAGE
AT NORTH PLATTE. AS A RESULT...WE WILL CONTINUE THE FLOOD ADVISORY
FOR THE NORTH PLATTE RIVER.
&&
.LBF WATCHES/WARNINGS/ADVISORIES...NONE.
&&
SHORT TERM/EXTENDED...CDC
AVIATION...CLBHAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NORTH PLATTE NE 328 PM CDT SAT JUL 7 2012 NEZ004>010-022>029-035>038-056>059-069>071-094-082030- SHERIDAN-EASTERN CHERRY-KEYA PAHA-BOYD-BROWN-ROCK-HOLT-GARDEN- GRANT-HOOKER-THOMAS-BLAINE-LOUP-GARFIELD-WHEELER-ARTHUR-MCPHERSON- LOGAN-CUSTER-DEUEL-KEITH-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER- WESTERN CHERRY- 328 PM CDT SAT JUL 7 2012 /228 PM MDT SAT JUL 7 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN AND NORTH CENTRAL NEBRASKA. .DAY ONE...TONIGHT. GENERAL THUNDERSTORM DEVELOPMENT REMAINS POSSIBLE THIS EVENING AND OVERNIGHT AS AN UPPER LEVEL DISTURBANCE MOVES ACROSS THE AREA. INITIAL STORM DEVELOPMENT WILL FOCUS ACROSS THE PANHANDLE THIS EVENING...THEN SHIFT EAST ACROSS THE WEST OVERNIGHT. ISOLATED SEVERE THUNDERSTORM DEVELOPMENT CANNOT BE RULED OUT...WHERE LOCALIZED DAMAGING WINDS AND HAIL MAY ACCOMPANY STRONGER STORMS. AREAS ACROSS SOUTHWEST NEBRASKA MAY SEE LOCALIZED HEAVY RAINFALL AS WELL. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THE POTENTIAL FOR THUNDERSTORMS LINGERS THROUGH TUESDAY. SEVERE THUNDERSTORM POTENTIAL WILL BE LOW HOWEVER RAINFALL MAY BE HEAVY AT TIMES. RAIN THAT FALLS DOWNSTREAM OF KINGSLEY DAM WILL RAISE THE POTENTIAL FOR FLOODING ON THE NORTH PLATTE RIVER AT NORTH PLATTE...AS HIGH FLOWS CONTINUE FOR IRRIGATIONAL NEEDS WITH THE LATEST FLOOD ADVISORY TO PROVIDE ADDITIONAL DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT. && THIS PRODUCT IS NOW AVAILABLE...ALONG WITH OTHER WEATHER... HYDROLOGICAL AND CLIMATOLOGICAL INFORMATION...AT HTTP://WWW.WEATHER.GOV/NORTHPLATTE MASEK
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 835 PM CDT SAT JUL 7 2012 NEZ070-080215- HAYES NE- 835 PM CDT SAT JUL 7 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HAYES COUNTY UNTIL 915 PM CDT... AT 830 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR HAMLET...OR 16 MILES SOUTHWEST OF HAYES CENTER...MOVING NORTH AT 5 MPH. WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. RAINFALL RATES NEAR 1 INCH PER HOUR ARE POSSIBLE. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... MAINLY RURAL AREAS OF SOUTHWESTERN HAYES COUNTY. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. CDC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 849 PM CDT SAT JUL 7 2012 NEZ069-070-080215- CHASE NE-HAYES NE- 849 PM CDT SAT JUL 7 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HAYES AND SOUTHEASTERN CHASE COUNTIES UNTIL 915 PM CDT/815 PM MDT/... AT 844 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR HAMLET...OR 18 MILES SOUTHWEST OF HAYES CENTER...MOVING WEST AT 5 MPH. WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. RAINFALL RATES NEAR 1 INCH PER HOUR ARE POSSIBLE. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... WAUNETA... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. CDC
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1109 PM CDT SAT JUL 7 2012 NEZ069-080500- CHASE NE- 1009 PM MDT SAT JUL 7 2012 ...SIGNIFICANT WEATHER ADVISORY FOR WESTERN CHASE COUNTY UNTIL 1100 PM MDT... AT 1006 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORM WINDS 9 MILES NORTHEAST OF ALVIN...OR 18 MILES SOUTHWEST OF IMPERIAL...MOVING NORTH AT 20 MPH. WIND GUSTS UP TO 55 MPH ARE EXPECTED WITH THIS STORM. THIS STORM WILL BE NEAR... HIGHWAY 6 MILE MARKER 10 AROUND 1040 PM MDT. LAMAR AROUND 1050 PM MDT. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. CDC
The Goodland radar (KGLD), 134 km away, was scanning. The volume nearest the first event began at 04:25 UTC.
1 thunderstorm wind. Local standard time, as filed.
Corn crops were destroyed by a combination of 60 MPH winds and pea to half inch diameter hail.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2012Every state in 2012This day in weather historyWarnings in Nebraska, July 2012
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: 390790.