Thunderstorms over portions of southeast Wyoming produced large hail and a funnel cloud.
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 CYS wrote it up.
Thunderstorms over portions of southeast Wyoming produced large hail and a funnel cloud.
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 25, 10:30 AM MST, 2 hours 23 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHEYENNE WY 1130 AM MDT WED JUN 25 2014 .UPDATE... ISSUED AT 1115 AM MDT WED JUN 25 2014 NO SIGNIFICANT CHANGES TO THE CURRENT FORECAST. WEAK UPPER RIDGE WILL ALLOW A FEW DISTURBANCES TO PASS THROUGH THIS AFTERNOON AND EVENING. 12Z SOUNDING PWATS RUNNING 0.66-1.00 INCH WITH UNMODIFIED CAPES OF 2500-3200 J/KG. AIR MASS SIMILAR TO YESTERDAY WITH DEW POINTS IN THE 50S EAST OF THE LARAMIE RANGE. TRIGGER TEMPERATURES ARE IN THE LOWER 70S...SO EXPECT CONVECTION TO DEVELOP BY MIDDAY. MODEL SHEAR AND MODIFIED SBCAPES FOR THIS AFTERNOON PROJECTING 30-40 KT AND 2000-2500 J/KG RESPECTIVELY EAST OF THE LARAMIE RANGE. SPC/S MORNING UPDATE OF THE DAY ONE OUTLOOK SHIFTED THE SLIGHT RISK A BIT FURTHER WEST. TSTORMS WILL INITIALLY FORM OVER THE HIGHER TERRAIN...THEN INCREASE IN COVERAGE AND INTENSITY AS THEY ENCOUNTER THE INSTABILITY AND SHEAR TO THE EAST. MAIN THREATS WILL BE HAIL TO 2 INCHES IN DIAMETER AND WIND GUSTS TO 60 MPH. CANNOT RULE OUT AN ISOLATED WEAK TORNADO OR TWO. GREATEST RISK FOR SEVERE WILL BE EAST OF INTERSTATE 25. ADJUSTED SKY...POPS AND WEATHER GRIDS TO BETTER MATCH EXPECTED TRENDS. MAX TEMPERATURES ARE ON TRACK. && .SHORT TERM...(TODAY THROUGH FRIDAY) ISSUED AT 305 AM MDT WED JUN 25 2014 SOME SHOWERS ALONG WITH AN ISOLATED STORM OR TWO PERSISTING EARLY THIS MORNING. THESE SHOULD MOVE OUT OVER THE NEXT FEW HOURS LEAVING A SHORT BREAK LATER THIS MORNING BEFORE NEXT ROUND OF STORMS ENSUES FOR THIS AFTERNOON INTO THIS EVENING. SHOULD SEE THEM INITIATING OVER THE MTNS EARLY AFTERNOON THEN MOVE EAST THROUGH THIS EVENING. UPPER RIDGING OVER THE AREA WILL CAUSE A BIT MORE WARMING IN THE MID LEVELS WHICH MAY ACT TO INHIBIT STORMS A BIT BUT PRETTY GOOD INSTABILITY WILL EXIST EAST OF THE MTNS THIS AFTERNOON...ESPECIALLY OVER THE SOUTHERN PANHANDLE WITH CAPES IN EXCESS OF 2500 J/KG AND A FAIR AMOUNT OF SHEAR. SHOULD SEE A FEW SEVERE STORMS ONCE AGAIN TODAY WITH LARGE HAIL THE MAIN THREAT. ACTIVITY WILL MOVE OUT DURING THE EVENING AS A MINOR IMPULSE LIKEWISE EJECTS TO THE EAST OF THE CWA. AN UPPER TROF WILL THEN SLOWLY APPROACH THE REGION THURSDAY AND FRIDAY WITH SEVERAL WEAK IMPULSES AHEAD OF IT INTERACTING WITH INSTABILITY TO KEEP MAINLY AFTERNOON AND EVENING THUNDERSTORMS GOING. DRIER AIR SHOULD PUSH EAST OVER THE PLAINS OF SE WYOMING THURSDAY AND A BIT MORE EAST OVER THE NEB PANHANDLE FRIDAY WHICH WILL SIGNIFICANTLY REDUCE INSTABILITY THUS ANY SEVERE STORMS SHOULD BE MORE OVER THE PANHANDLE BOTH DAYS. WARM TODAY AND THURSDAY THEN A MODEST PACIFIC FRONT WILL PASS ACROSS EARLY FRIDAY REDUCING MAX TEMPS ABOUT 5 TO 10 DEGREES. .LONG TERM...(FRIDAY NIGHT THROUGH TUESDAY) ISSUED AT 305 AM MDT WED JUN 25 2014 SHOWERS AND THUNDERSTORMS SHOULD BE ONGOING FRIDAY NIGHT AS A FAIRLY STRONG SHORTWAVE MOVES THROUGH THE AREA. FOLLOWED THE ECMWF SOLUTION AS THE GFS LOOKS TO BE ON THE DRY SIDE AND HAS MOST OF THE PRECIP CONFINED TO THE NORTHEAST PART OF THE STATE. SHOWERS AND THUNDERSTORMS LOOK TO COME TO AN END FROM SOUTHWEST TO NORTHEAST AS THE NIGHT PROGRESSES INTO SATURDAY. MOST OF THE CWFA SHOULD BE DRY THIS WEEKEND WITH MAYBE THE EXCEPTION BEING NORTHERN CONVERSE/NIOBRARA COUNTIES IN EAST CENTRAL WYOMING AND SIOUX/DAWES COUNTIES IN THE NORTHERN PANHANDLE. KEPT SOME SLIGHT CHANCE/LOW END CHANCE POPS GOING UP THERE AS THIS AREA UNDER THE INFLUENCE STILL OF A WEAK SURFACE FRONT. THINGS REALLY BEGIN TO DRY OUT SUNDAY AS THE FRONT GETS FORCED EAST AND WE SEE WESTERLY WINDS RETURNING. ECMWF SHOWING NEXT CHANCE FOR SHOWERS/TSTMS RETURNING TO THE PANHANDLE TUESDAY. INTRODUCED SOME LOW END CHANCE POPS FOR THAT TIME ACROSS THE PANHANDLE. && .AVIATION...(FOR THE 18Z TAFS THURSDAY MORNING) ISSUED AT 1130 AM MDT WED JUN 25 2014 ANOTHER ROUND OF THUNDERSTORMS ARE EXPECTED THIS AFTERNOON...AND WILL MAINLY BE EAST OF THE LARAMIE RANGE. BRIEF IFR CONDITIONS ARE POSSIBLE IN THE STRONGEST THUNDERSTORMS WITH STRONG WINDS AND VERY HEAVY RAIN. THUNDERSTORMS WILL PUSH INTO WESTERN NEBRASKA BY THIS EVENING...AND THEN OUT OF THE AREA BY MIDNIGHT. PATCHY FOG MAY FORM AFTER MIDNIGHT FROM KCYS EASTWARD INTO WESTERN NEBRASKA...INCLUDING ALL THE WESTERN NEBRASKA TERMINALS. && .FIRE WEATHER... ISSUED AT 305 AM MDT WED JUN 25 2014 LOW CONCERNS ANTICIPATED OVER THE NEXT FEW DAYS WITH SCATTERED SHOWERS AND THUNDERSTORMS OVER MANY AREAS ESPECIALLY THE PLAINS. A DRIER REGIME EXPECTED TO MOVE IN OVER THE WEEKEND AND PERSIST INTO EARLY NEXT WEEK. && .CYS WATCHES/WARNINGS/ADVISORIES... WY...NONE. NE...NONE. && UPDATE...JAMSKI SHORT TERM...RE LONG TERM...CLAYCOMB AVIATION...TJT FIRE WEATHER...RE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHEYENNE WY 1047 AM MDT WED JUN 25 2014 NEZ002-003-019>021-054-055-095-096-WYZ101>103-106>108-116>119- 261700- DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE- NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS- NIOBRARA COUNTY-NORTH LARAMIE RANGE- CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY- EAST PLATTE COUNTY-GOSHEN COUNTY-SOUTH LARAMIE RANGE- SOUTH LARAMIE RANGE FOOTHILLS-CENTRAL LARAMIE COUNTY- EAST LARAMIE COUNTY- 1047 AM MDT WED JUN 25 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA PANHANDLE...SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS WILL REDEVELOP AND MOVE ACROSS THE AREA THIS AFTERNOON AND EVENING. SOME SEVERE THUNDERSTORMS WILL BE POSSIBLE WITH LARGE HAIL AND WIND GUSTS TO 60 MPH BETWEEN 2 PM THIS AFTERNOON AND 9 PM THIS EVENING. AN ISOLATED TORNADO OR TWO COULD ALSO DEVELOP. THE GREATEST RISK FOR SEVERE WEATHER IS ALONG AND EAST OF INTERSTATE 25. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY WIDELY SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED THURSDAY AND FRIDAY. A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS THE WESTERN NEBRASKA PANHANDLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED FROM 2 PM THROUGH 9 PM FOR AREAS ALONG AND EAST OF INTERSTATE 25. SPOTTER ACTIVATION FOR THE WESTERN NEBRASKA PANHANDLE WILL MOST LIKELY BE REQUIRED AFTER 4 PM THIS AFTERNOON. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE WYZ104-105-109>115-261700- FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN- CENTRAL CARBON COUNTY-NORTH SNOWY RANGE FOOTHILLS- SOUTHWEST CARBON COUNTY-SIERRA MADRE RANGE- UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-LARAMIE VALLEY- 1047 AM MDT WED JUN 25 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING. .DAY ONE...TODAY AND TONIGHT WIDELY SCATTERED THUNDERSTORMS WILL DEVELOP INITIALLY OVER THE MOUNTAINS EARLY THIS AFTERNOON AND MOVE EASTWARD. A FEW STRONG STORMS WITH SMALL HAIL AND GUSTY WINDS WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY ISOLATED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED THURSDAY AND FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE REQUIRED TODAY AND TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT... HTTP://WEATHER.GOV/CHEYENNE JAMSKI
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
858 AM MDT WED JUN 25 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 AM HAIL 2 N CHEYENNE 41.17N 104.79W
06/25/2014 M1.50 INCH LARAMIE WY COCORAHS
AVERAGE SIZE 1 INCH. CAR DENTS AND SHREDDED LEAVES.
&&
BCHAPMANPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHEYENNE WY
951 AM MDT WED JUN 25 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0410 PM HAIL 11 NW CHEYENNE 41.26N 104.94W
06/24/2014 M1.50 INCH LARAMIE WY COCORAHS
0423 PM HAIL 10 NW CHEYENNE 41.25N 104.93W
06/24/2014 M1.25 INCH LARAMIE WY TRAINED SPOTTER
NICKEL TO HALF DOLLAR SIZE HAIL.
0430 PM HAIL 12 N CHEYENNE 41.32N 104.79W
06/24/2014 M1.00 INCH LARAMIE WY TRAINED SPOTTER
0431 PM HAIL 12 N CHEYENNE 41.32N 104.79W
06/24/2014 M1.75 INCH LARAMIE WY STORM CHASER
PERSON IN VEHICLE HAD CRACKED WINDSHIELD FROM GOLFBALL
SIZE HAIL. PERSON LOCATED FACING SOUTHBOUND ON INTERSTATE
25 AT MILE MARKER 23.
0432 PM HAIL 10 N CHEYENNE 41.29N 104.79W
06/24/2014 E2.75 INCH LARAMIE WY NWS EMPLOYEE
SIGNIFICANT DAMAGE TO VEHICLES. WINDSHIELDS BROKEN AND
SUNROOF DESTROYED
0447 PM HAIL 15 NE CHEYENNE 41.30N 104.59W
06/24/2014 E1.50 INCH LARAMIE WY NWS EMPLOYEE
QUARTER TO PING PONG SIZE HAIL AT MILE MARKER 27 ALONG US
85
0453 PM HAIL 15 NE CHEYENNE 41.30N 104.59W
06/24/2014 M2.50 INCH LARAMIE WY STORM CHASER
0510 PM HAIL 21 NE CHEYENNE 41.36N 104.51W
06/24/2014 M2.00 INCH LARAMIE WY STORM CHASER
ACTUALLY MEASURED 2.25 INCHES
0538 PM HAIL 14 W ALBIN 41.42N 104.37W
06/24/2014 M1.75 INCH LARAMIE WY TRAINED SPOTTER
0545 PM HAIL 16 W ALBIN 41.42N 104.41W
06/24/2014 M1.00 INCH LARAMIE WY STORM CHASER
0548 PM HAIL 14 W ALBIN 41.42N 104.37W
06/24/2014 M1.00 INCH LARAMIE WY TRAINED SPOTTER
0548 PM HAIL 9 W ALBIN 41.42N 104.27W
06/24/2014 M1.00 INCH LARAMIE WY TRAINED SPOTTER
0740 PM HAIL 9 NNW BOSLER 41.70N 105.76W
06/24/2014 M0.75 INCH ALBANY WY LAW ENFORCEMENT
ALBANY COUNTY SHERIFF DEPUTY REPORTED PEA TO DIME SIZE
HAIL WAS COVERING HIGHWAY 30 TO A DEPTH OF 6 INCHES.
0847 PM HAIL 22 SE LARAMIE 41.09N 105.28W
06/24/2014 M1.00 INCH ALBANY WY TRAINED SPOTTER
QUARTER SIZE HAIL FELL JUST NORTH OF THE COLORADO STATE
LINE ALONG HIGHWAY 287.
0847 PM HAIL 22 SE LARAMIE 41.09N 105.28W
06/24/2014 M1.00 INCH ALBANY WY TRAINED SPOTTER
QUARTER SIZE HAIL ALONG HIGHWAY 287 JUST NORTH OF THE
COLORADO STATE LINE.
0935 PM HAIL 6 SW CHEYENNE 41.08N 104.87W
06/24/2014 M1.00 INCH LARAMIE WY PUBLIC
DIME TO QUARTER SIZE HAIL ON INTERSTATE 25 REPORTED BY
TRUCKERS.
0948 PM HAIL 2 E CHEYENNE 41.15N 104.75W
06/24/2014 M1.00 INCH LARAMIE WY BROADCAST MEDIA
NICKEL TO QUARTER SIZE
0949 PM HAIL 4 N CHEYENNE 41.20N 104.79W
06/24/2014 M1.00 INCH LARAMIE WY NWS EMPLOYEE
0950 PM HAIL 4 ENE CHEYENNE 41.17N 104.72W
06/24/2014 M0.88 INCH LARAMIE WY NWS EMPLOYEE
0950 PM HAIL 3 NE CHEYENNE 41.18N 104.75W
06/24/2014 M1.50 INCH LARAMIE WY NWS EMPLOYEE
0954 PM HAIL 3 NE CHEYENNE 41.18N 104.75W
06/24/2014 M1.50 INCH LARAMIE WY NWS EMPLOYEE
0955 PM HAIL 3 NE CHEYENNE 41.18N 104.75W
06/24/2014 M1.50 INCH LARAMIE WY NWS EMPLOYEE
0956 PM HAIL 3 NE CHEYENNE 41.18N 104.75W
06/24/2014 M1.25 INCH LARAMIE WY TRAINED SPOTTER
1000 PM HAIL 7 NE CHEYENNE 41.22N 104.70W
06/24/2014 M0.75 INCH LARAMIE WY TRAINED SPOTTER
1002 PM HAIL 5 NE CHEYENNE 41.20N 104.72W
06/24/2014 M1.00 INCH LARAMIE WY TRAINED SPOTTER
1200 AM HAIL 2 N CHEYENNE 41.17N 104.79W
06/25/2014 M1.50 INCH LARAMIE WY COCORAHS
AVERAGE SIZE 1 INCH. CAR DENTS AND SHREDDED LEAVES.
&&
MJAMSKISPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 147 PM MDT WED JUN 25 2014 WYZ106-117-118-252030- CENTRAL LARAMIE COUNTY WY-CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY WY-SOUTH LARAMIE RANGE FOOTHILLS WY- 147 PM MDT WED JUN 25 2014 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN LARAMIE COUNTY UNTIL 230 PM MDT... AT 138 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 10 MILES EAST OF IRON MOUNTAIN...OR 31 MILES NORTHWEST OF CHEYENNE...MOVING EAST AT 15 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER IS EXPECTED WITH THIS STORM... ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... MAINLY RURAL AREAS OF NORTHERN LARAMIE COUNTY. THIS INCLUDES INTERSTATE 25 IN WYOMING BETWEEN MILE MARKERS 32 AND 47. THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. 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. && LAT...LON 4165 10465 4143 10465 4144 10512 4165 10513 TIME...MOT...LOC 1947Z 265DEG 13KT 4156 10498 HAMMER
The Cheyenne radar (KCYS), 25 km away, was scanning. The volume nearest the first event began at 19:52 UTC.
3 hail, 1 funnel cloud. Local standard time, as filed.
A funnel cloud formed 15 miles west of Cheyenne and drifted to the southwest. It lowered several times but never made contact with the ground. It dissipated 17 minutes later.
Penny to quarter size hail was observed a half mile north of Iron Mountain Road 13 miles southwest of Chugwater.
Quarter to half dollar size hail was observed near the intersection of County Roads 206 and 207.
Quarter size hail was observed one mile north of Mule Creek Junction.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wyoming in 2014Every state in 2014This day in weather historyWarnings in Wyoming, June 2014
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: 526612, 526614, 526616, 526617.