Severe thunderstorms moved across SW Nebraska and NW Kansas producing hail up to golf ball size and several flash flood reports.
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 GLD wrote it up.
Severe thunderstorms moved across SW Nebraska and NW Kansas producing hail up to golf ball size and several flash flood reports.
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 Goodland, KS wrote its last area forecast discussion before the first event at Aug 22, 1:40 AM MST, 5 hours 19 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GOODLAND KS 240 AM MDT WED AUG 22 2007 .DISCUSSION...FORECAST PROBLEMS WILL BE CHANCE OF PRECIPITATION THROUGH FRIDAY AND HOW MUCH TO COOL HIGH TEMPERATURES OFF THURSDAY AND ESPECIALLY FRIDAY. SATELLITE SHOWING A CONTINUED PROGRESSIVE FLOW FROM THE CENTRAL PACIFIC INTO EASTERN NORTH AMERICA. FLOW SLOWS UP A LITTLE OVER EASTERN CANADA. UPPER TROUGH NEAR WESTERN ALASKA IS AMPLIFYING RIDGE SLIGHTLY AHEAD OF IT. FRONT REMAINS NEARLY STATIONARY TO OUR NORTH ALTHOUGH IT MAY HAVE MADE SOME SLIGHT PROGRESS SOUTH. SURFACE TROUGH EXTENDS SOUTH OF LOW ALONG IT. THIS HELP TO INITIATE THUNDERSTORMS OVER THE AREA. AS YESTERDAY...NEXT LEE/SURFACE TROUGH IS ALREADY DEVELOPING IN THE FAST FLOW ALOFT. SEVERAL SHORTWAVE TROUGHS IN THIS FLOW FROM THE SOUTHERN GREAT BASIN INTO THE PACIFIC NORTHWEST. AT JET LEVEL...MODELS INITIALIZED FINE. AT MID LEVELS...MODELS CAPTURING FEATURES WELL. BASED ON UPPER AIR ANALYSIS...THE NAM AND GFS DID SLIGHTLY BETTER THAN THE ECMWF/UKMET. ALTHOUGH THE MODELS WERE REALLY NOT THAT FAR APART. AT LOW LEVELS...UKMET AND RUC13 LOOK TO BE DOING SLIGHTLY BETTER THAN THE NAM ON THE SURFACE FIELD. ON TEMPERATURES...THE NAM AND GFS WERE DOING SLIGHTLY BETTER ALTHOUGH MODELS WERE NOT TOO BAD OVERALL. WILL PREFER A BLEND OF THE MODELS BASED ON RECENT PERFORMANCE. HOWEVER...TEND TO USE THE NAM A LITTLE MORE ON THE TEMPERATURES... WINDS...AND PRECIPITATION CHANCES. TODAY/TONIGHT...ISOLATED THUNDERSTORMS CONTINUE TO POP UP ON LEFTOVER BOUNDARIES...LOW LEVEL JET...AND WEAK 700 MB SHORTWAVE. WILL INSERT ISOLATED THUNDERSTORMS FOR THIS MORNING TO ACCOUNT FOR THIS. THEN EXPECT THUNDERSTORMS DEVELOP SURFACE TROUGH OVER THE NORTHWEST HALF OF THE FORECAST AREA THIS AFTERNOON AS SHORTWAVE TROUGH FROM THE SOUTHERN GREAT BASIN MOVES INTO THE AREA. ALSO GFS/UKMET HAVE LEFT FRONT QUADRANT IN THE WEST LATE THIS AFTERNOON. NAM IS FURTHER NORTHWEST WITH IT. BY LATE IN THE NIGHT...ENTIRE FORECAST AREA EXCEPT MAYBE THE EXTREME EAST HAS A LEFT FRONT QUADRANT. WILL START WITH SCATTERED POPS IN THE NORTHWEST THIS AFTERNOON AND THEN INCREASE TO HIGH CHANCE TO LIKELY TONIGHT. ENOUGH PARAMETERS IN PLACE...INSERTED SEVERE WORDING. NOT SURE HOW TEMPERATURES WILL GO. DO NOT BELIEVE THEY WILL WARM UP A LOT... ESPECIALLY IN THE NORTHWEST. WENT SLIGHTLY COOLER THERE AND WARMER IN THE SOUTHEAST. THURSDAY/THURSDAY NIGHT...START OUT THE DAY WITH A LEFT FRONT QUADRANT ACCORDING TO THE NAM AND GFS WITH UKMET NOT AS FAVORABLE. BY LATE IN THE DAY AND INTO THE NIGHT...ALL MODELS SHOWING A COUPLED JET STRUCTURE OR A STRONG RIGHT REAR QUADRANT OVER THE AREA. ALSO STRONG AND NEGATIVELY TILTED SHORTWAVE TROUGH WILL MOVE IN FROM THE SOUTHWEST LATE IN THE AFTERNOON. MODELS SHOWING BOUNDARY PUSHING SOUTH. THAT MAY BE A BIT AGGRESSIVE. NO MATTER...WILL EITHER HAVE A BOUNDARY OVER OUR FORECAST AREA OR DECENT UPSLOPE SURFACE WINDS. AS A RESULT...WENT LOW CHANCE POPS IN THE AFTERNOON AND INCREASED TO LIKELY FOR THE NIGHT. HIGH TEMPERATURES WILL BE PROBLEMATIC. LOOK TO HAVE SOME CLEARING AND A CHANCE FOR HEATING. HOWEVER...FRONT MAY BE BRINGING IN SLIGHTLY COOLER. WENT NEAR TO SLIGHTLY BELOW GUIDANCE. FRIDAY/FRIDAY NIGHT...RIGHT REAR QUADRANT OR JET AXIS MOVES ACROSS THE FORECAST AREA DURING THE DAY. ALSO ABOVE MENTIONED SHORTWAVE TROUGH MOVES THROUGH...MAINLY IN THE MORNING. WILL LEAVE IN SLIGHT CHANCE TO CHANCE POPS FOR THE ENTIRE DAY. LINGERING DYNAMICS AND BOUNDARY BEING CLOSE...KEPT IN SOME SLIGHT CHANCE POPS FOR THE NIGHT. MODELS ARE NOW SHOWING FRIDAY TO BE A RATHER COOL DAY. THE WARMEST 2 METER TEMPERATURE MOSTLY IN THE MIDDLE AND UPPER 70S. WILL HAVE LINGERING CLOUDS AND UPSLOPE WINDS...AND SEEING THE HIGH TEMPERATURES BEHIND THE FRONT UP NORTH...SEE THE POTENTIAL. HOWEVER...SOME UNCERTAINTY ON CLEARING. WILL TREND COOLER...AND LET THE DAY SHIFT HAVE A CLOSER LOOK AT IT. SATURDAY CONTINUES TO LOOK DRY AND KEPT THAT WAY. DID NOT MAKE ANY OTHER CHANGES. THANKS TO ALL FOR COLLABORATION. && .AVIATION...THE MAIN CONCERN THROUGH THIS TAF PERIOD WILL BE THE POSSIBILITY OF THUNDERSTORMS AT THE TERMINALS. ONGOING ISOLD TSRA IS SLOW TO DISSIPATE THUS HELD ONTO VCTS THROUGH 12Z. NEXT ROUND OF TSRA EXPECTED WED AFTERNOON WITH GOOD LLVL CONVERGENCE ALONG TROUGH AXIS. UPPER SUPPORT LOOKS BETTER THAN THE PREVIOUS COUPLE OF DAYS. EXPECT COVERAGE TO BE SCATTERED WITH THE POSSIBLITY OF MVFR CONDITIONS LATER THIS AFTERNOON AND TONIGHT. HOWEVER...ENOUGH UNCERTAINTY THAT ONLY PUT VCTS AT BOTH KGLD AND KMCK. && .GLD WATCHES/WARNINGS/ADVISORIES... KS...NONE. NE...NONE. CO...NONE. && BULLER/CLK
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GOODLAND KS 448 AM MDT WED AUG 22 2007 COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-231200- YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON- SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA- DUNDY-HITCHCOCK-RED WILLOW- 448 AM MDT WED AUG 22 2007 /548 AM CDT WED AUG 22 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT THE AIR MASS WILL REMAIN VERY MOIST AND UNSTABLE THROUGH TONIGHT. SMALL CLUSTERS OF THUNDERSTORMS WILL CONTINUE THIS MORNING. AT THIS TIME...THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE. HOWEVER THEY WILL BE CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL... SMALL HAIL...AND FREQUENT CLOUD TO GROUND LIGHTNING. A SURFACE TROUGH AND A STRONG UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE REGION THROUGH TONIGHT. THIS WILL ALLOW SCATTERED TO NUMEROUS THUNDERSTORMS TO DEVELOP THIS AFTERNOON...MAINLY ALONG AND NORTHWEST OF A LINE FROM CHEYENNE WELLS TO COLBY TO OBERLIN. THESE STORMS WILL THEN MOVE ACROSS THE REST OF THE AREA TONIGHT. BECAUSE OF FAVORABLE WIND SHEAR AND INSTABILITY COMBINED WITH THE STRONG LIFT...MANY OF THESE THUNDERSTORMS WILL BECOME SEVERE...AND PRODUCE LARGE HAIL...DAMAGING WINDS...AND LOCALLY HEAVY RAINFALL. THERE WILL ALSO BE A THREAT FOR A FEW TORNADOES IN LOCATIONS ALONG THE NEBRASKA AND KANSAS BORDER. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A COLD FRONT WILL SLOWLY MOVE ACROSS THE AREA ON THURSDAY. A STRONG UPPER LEVEL DISTURBANCE AND JET WILL WILL COMBINE WITH THE COLD FRONT TO PRODUCE SCATTERED TO NUMEROUS THUNDERSTORMS DURING THE AFTERNOON AND NIGHTTIME HOURS. MANY OF THESE STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WINDS...AND LOCALLY HEAVY RAINFALL. A CHANCE OF THUNDERSTORMS WILL CONTINUE FRIDAY AND FRIDAY NIGHT. IT WILL BE POSSIBLE THAT A FEW OF THESE STORMS COULD BECOME SEVERE. THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS ON TUESDAY. AT THIS TIME...THE MAIN THREAT FROM THESE STORMS WILL BE CLOUD TO GROUND LIGHTNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE REQUIRED THROUGH TONIGHT ACROSS THE ENTIRE AREA. BULLER
The Goodland radar (KGLD), 100 km away, was scanning. The volume nearest the first event began at 13:56 UTC.
3 hail, 2 thunderstorm wind, 2 flash flood, 1 heavy rain. Local standard time, as filed.
Severe wind gust associated with an apparent heat burst. Temperature rose from 77F to 95F and winds gusted to 58 kts from the SE around 8 am MDT in Tribune. The dewpoint dropped from 66F to 34F during the event. No known damage.
Extremely heavy and persistent rainfall during the late afternoon /early evening hours on Wednesday (08/22/07) resulted in 5-6 inches of precipitation across NW and WC Logan county. Water was reported flowing over portions of county roads in western Logan county during the evening, with flooding ongoing the following morning affecting many county roads. Several roads were washed out preventing travel.
Spotter also reported 0.40 inches of rain.
Public report of water over highway 27, 4 miles north of Sharon Springs.
Rainfall of 5.50 reported by law enforcement.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2007Every state in 2007This day in weather historyWarnings in Kansas, August 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: 43473, 43475, 43474, 43478, 43477, 43476, 43479, 43480.