1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 Cheyenne, WY wrote its last area forecast discussion before the first event at Jun 24, 2:50 AM MST, 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 350 AM MDT SAT JUN 24 2006 .SHORT TERM...TODAY THROUGH SUNDAY NIGHT. THUNDERSTORM ACTIVITY INCREASED THROUGH THE EARLY MORNING HOURS STARTING AROUND 1 AM. LATEST SATELLITE IMAGERY AT 9Z SHOWS CLOUD TOP TEMPERATURES OF MINUS 50 TO MINUS 60 ACROSS THE NEBRASKA PANHANDLE. THESE STORMS ARE MOVING SOUTHEAST AT 15 MPH AND SHOULD BE OUT OF THE CWA BY 6 AM. THERE WAS SEVERAL REPORTS OF PEA SIZE HAIL AND SIGNIFICANT LIGHTNING ACTIVITY. THE STRONGEST STORM OCCURRED AROUND 1 AM LOCATED NORTHWEST OF SIDNEY...BUT THERE HAVE BEEN NO STORM REPORTS FROM THE STORM. THUNDERSTORMS WERE TRAINING OVER THE SAME AREA AND CHEYENNE DISPATCH REPORTED HEAVY RAIN STILL FALLING ACROSS CHEYENNE COUNTY. RADAR ESTIMATED THREE HOUR PRECIPITATION SHOWED 3 TO 6 INCHES MAINLY ACROSS HIGHWAY 385 BETWEEN GURLEY AND SIDNEY. OTHERWISE TEMPERATURES ACROSS CWA TODAY WILL BE SIMILAR OR COUPLE DEGREES COOLER TODAY. EXPECT UPSLOPE FLOW TO HELP INITIATE THUNDERSTORMS OVER THE MOUNTAINS AND THEN SHIFT INTO THE PLAINS IN THE LATE AFTERNOON AND EARLY EVENING. THE BEST INSTABILITY APPEARS TO BE ACROSS NORTHEAST COLORADO...THUS EXPECT ONLY TYPICAL THUNDERSTORMS WITH SOME PRODUCING PEA SIZE HAIL AND WIND GUSTS UP TO 45 MPH. SUNDAY TEMPERATURES WILL BE NEAR SEASONAL NORMALS AND AGAIN AFTERNOON AND EARLY EVENING THUNDERSTORMS CAN BE EXPECTED. .LONG TERM...MON THROUGH FRI. MON...NORTHERLY FLOW ALOFT ACROSS WY. COOL LOW LEVEL NELY FLOW EAST OF THE LARAMIE RANGE WILL STABILIZE THE ATMOSPHERE WITH NEGATIVE THETA-E ADVECTION. THETA-E RIDGE AXII ACROSS OUR WRN ZONES WILL PRODUCE A CHANCE OF AFTN/EVNG TSTMS THERE. TUE/WED...WITH HEIGHTS DECREASING ALOFT AND ASSOCIATED COOLER MID LEVEL TEMPERATURES...SHOULD SEE AN INCREASE IN AFTN/EVNG TSTMS ACROSS OUR WRN ZONES IN CLOSE PROXIMITY TO THETA-E RIDGE AXII. LIMITED INSTABILITY EAST OF THE LARAMIE RANGE WILL LIMIT CONVECTIVE POTENTIAL THERE. THU...ALTHOUGH HEIGHTS ALOFT INCREASE WITH MORE PRONOUNCED RIDGING...GFS SUGGESTS ENOUGH LOW/MID LEVEL MOISTURE FOR SCATTERED AFTN/EVNG TSTMS ACROSS OUR WRN ZONES. WARM TEMPERATURES ALOFT AND LIMITED LOW/MID LEVEL MOISTURE WILL LESSEN TSTM CHANCES EAST OF THE LARAMIE RANGE. FRI...RIDGING ALOFT TRANSLATES EASTWARD INTO CNTRL WY. WARMING TEMPERATURES ALOFT WILL LIMIT TSTM COVERAGE. ANOTHER CHAMBER OF COMMERCE DAY TO END THE WORKWEEK. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && SHORT TERM...MG LONG TERM....RUBIN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 950 PM MDT FRI JUN 23 2006 NEZ001>003-019>021-054-055-WYZ060-068-070-241545- SIOUX-DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL- CHEYENNE-NIOBRARA-GOSHEN-PINE BLUFFS- 950 PM MDT FRI JUN 23 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE AND SOUTHEAST WYOMING. .DAY ONE...TONIGHT ISOLATED THUNDERSTORMS WILL MOVE INTO THE AREA TO THE NORTH OF A LUSK TO ALLIANCE LINE LATER TONIGHT. THE ACTIVITY WILL PRODUCE LIGHTNING...GUSTY WINDS AND A PERIOD OF MODERATE RAINFALL. SEVERE DROUGHT AND MODERATE WILDFIRE DANGER CONTINUES FOR THE SOUTHERN NEBRASKA PANHANDLE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS WILL OCCUR EACH DAY. SEVERE DROUGHT CONTINUES FOR THE SOUTHERN NEBRASKA PANHANDLE. MODERATE WILDFIRE DANGER CONTINUES...EXCEPT FOR THE NORTHERN NEBRASKA PANHANDLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. WYZ061>066-241545- SOUTHWEST CARBON-NORTH CARBON-SNOWY RANGE-NORTH LARAMIE RANGE- LARAMIE VALLEY-LARAMIE RANGE- 950 PM MDT FRI JUN 23 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WYOMING. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. MODERATE WILDFIRE DANGER EXISTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS WILL OCCUR EACH DAY. MODERATE WILDFIRE DANGER WILL CONTINUE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. WYZ059-067-069-241545- CONVERSE-PLATTE-CHEYENNE FOOTHILLS- 950 PM MDT FRI JUN 23 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST WYOMING. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. MODERATE WILDFIRE DANGER EXISTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED EACH DAY. MODERATE WILDFIRE DANGER EXISTS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. WEILAND
The Cheyenne radar (KCYS), 152 km away, was scanning. The volume nearest the first event began at 09:58 UTC.
1 flash flood. Local standard time, as filed.
Radar estimated 3-4 inches of rainfall with report of localized flooding along county road 119 betweencounty roads 44 and 46.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2006Every state in 2006This day in weather historyWarnings in Nebraska, June 2006
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: 5518318.