Alert archive / Wyoming / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 40, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Jun 24, 2014, 6:38 PM MDT for Fremont County, Wyoming. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 24, 2014, 6:38 PM MDT (00:38 UTC)
- Expired
- Jun 24, 2014, 7:30 PM MDT
- In force
- 52 min
- Issued by
- NWS Riverton, WY
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Fremont County, WY
The radar
The Riverton/Lander radar (KRIW), 13 km from the middle of the area, began a volume at 00:40 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 0.6 hours before the alert went out and 19 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 99 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 2661 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 24, 3:54 PM MDT, 2 hours 44 minutes earlier.
Area forecast discussion, Jun 24, 3:54 PM MDT, 2 hours 44 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 354 PM MDT TUE JUN 24 2014 .SHORT TERM...TONIGHT THROUGH WEDNESDAY WV IMAGERY SHOWING RIDGE AXIS OVER THE WRN BORDER OF WY...TROFFING EAST WITH EMBEDDED SW/WEAK JET STREAK EXITING EWD...A WEAK VORT MAX CRESTING THE RIDGE NOW...AND ANOTHER SW/JET OVR THE GREAT BASIN. AT THE SFC...LOW P STILL OF THE SW...HIGH(ER) PRESSURE OFF TO THE NE ACROSS THE NRN PLAINS...WITH THREE WEAK BOUNDARIES ACROSS THE CWA...ONE ACTING LIKE A VERY WEAK FRONT AND STILL DRAPED ALONG THE ERN SLOPES OF THE MOUNTAINS E OF THE DIVIDE. THE OTHERS ARE ASSOCIATED W/ THE SW LOW...WITH WEAK INVERTED LOBES STRETCHING TO THE N ALONG OUR WRN BORDER WITH ID...AND THE OTHER POINTED EWD ACROSS SWEETWATER COUNTY INTO ERN FREMONT AND THEN E INTO NATRONA COUNTY. THIS SET-UP OFFERS UP A FEW DIFFERING CONVERGENCE ZONES IN ADDITION TO THE MOUNTAINS. ERLY FLOW E AND N OF THE SOUTHERN BOUNDARY...WESTERLY/SOUTHWESTERLY TO THE WEST AND SOUTH OF THE BOUNDARY. HIGHER CAPE WILL ONCE AGAIN SHOWING ALONG AND N OF THIS BOUNDARY IN THE MORE ERLY FLOW...GIVING SOME ADDITIONAL FOCUS AND STRENGTH TO POSSIBLE STORM INITIATION THIS AFTERNOON...ALONG WITH THOSE THAT MAKE IT OFF FROM THE MOUNTAINS. ADDITIONALLY...THE WEAK RIDGE RUNNING SW WILL RIDE OVR THE FA BY MID-DAY...HELPING TO SPARK EARLIER CONVECTION EVEN AS HEIGHTS ARE ON THE RISE. ATTM...STORM PARAMETERS LOOK TO REMAIN MOSTLY AOB SEVERE LEVELS. HOWEVER STRONGER STORMS AND ISOLATED SVR MAY STRETCH ALONG/NORTH OF THE SOUTHERN SFC BOUNDARY AND A BIT FURTHER INTO THE CENTRAL CWA TODAY WITH 0-6 KM SHEAR HOVERING BETWEEN 20 AND 30 KTS...INCREASING SOMEWHAT EARLY THIS EVENING AND OVERNIGHT. CIRRUS CLOUD SHIELD MOVING ACROSS THE FA FROM WEST TO EAST IS CURRENTLY KEEPING MUCH OF THE REGION W OF THE DIVIDE UNDER CONTROL EARLY. BIG HORNS CURRENTLY CAPPED BUT IN SUNSHINE WILL LIKELY GO LATER AFTER THE SRN ABSAROKAS WHICH ARE LESS CAPPED...THEN PORTIONS OF THE SFC BOUNDARY OVR SWEETWATER AND SUBLETTE COUNTIES NEXT. WILL HAVE TO WATCH FOR OPENING IN THE SHIELD FOR CI TO OCCUR ELSEWHERE. THIS MAY ALSO KEEP SFC HIGHS FROM REACHING FCST LVLS...OR MAY OCCUR RATHER LATE IF THEY DO. WED BEGINS WITH UPR RIDGE CENTERED OVR WY WITH GREAT BASIN LOW BUILDING INTO SWRN WY...WITH A KINDA/SORTA WARM FRONT/INVERTED TROF EXTENDING TO THE NE THEN N ALONG THE BIG HORNS. THIS WILL OPEN THE DOOR TO SERLY LL FLOW THROUGH AT LEAST NRN NATRONA COUNTY AND ALL OF JOHNSON COUNTY...WITH DECENT MOISTURE RETURN THRU AT LEAST THE MORNING PERIOD...POSSIBLY INTO THE EARLY AFTERNOON. AS A WEAK RIDGE RUNNING SW/JET STREAK MOVES ACROSS THE AREA IN THE AFTERNOON...AT LEAST ISOLATED CONVECTION WILL OCCUR ALONG/NEAR TROF/FRONT/BOUNDARY N OF THE SFC LOW ALONG WITH WHAT CAN GO OVR THE BIG HORNS. PLACEMENT OF THE TROF/FRONT/BOUNDARY WILL MEAN EVERYTHING AT THIS TIME...WITH MOST SEVERE WEATHER OCCURRING ALONG/EAST OF THE BOUNDARY WHERE CAPE RANGING FROM 1200 TO 2000 J/KG AND DEEP SHEAR WILL BE MAXIMIZED IN OUR FA FOR A SHORT TIME BEFORE GETTING SQUEEZED OUT ACROSS THE ERN BORDER. A LITTLE OF EVERYTHING COULD OCCUR...INCLUDING LARGE HAIL...DAMAGING WINDS...AND/OR AND ISOLATED TORNADO...ESPECIALLY ALONG THE BOUNDARY WHERE SOME SFC BACKING OF THE WINDS IS EXPECTED UNTIL A FRONT MOVES SOUTH ACROSS THE ERN COUNTIES IN RESPONSE TO MID/UPR FORCING AND THE RETREAT OF THE SW SFC LOW AND ANY DEVELOPING LEE LOW IN CO. .LONG TERM...WEDNESDAY NIGHT THROUGH TUESDAY A CLOSED LOW OFF THE BRITISH COLUMBIA COAST WILL SWING A VORT LOBE THROUGH THE AREA WEDNESDAY EVENING. THIS WILL BE THE FIRST IN A SERIES OF SHORTWAVE TROUGHS THAT WILL ROTATE AROUND THIS PARENT LOW THROUGH SATURDAY. SCATTERED THUNDERSTORMS WILL CONTINUE THROUGH MUCH OF THE EVENING WEDNESDAY NIGHT FROM THIS VORT LOBE ALONG WITH A CHANCE OF STRONG THUNDERSTORMS JOHNSON AND NATRONA COUNTIES WHERE THE BEST CAPE WILL BE. THURSDAY WILL BE A REPEAT OF WEDNESDAY BUT THE SEVERE THREAT WILL BE MAINLY OVER NORTHEAST BIG HORN AND JOHNSON COUNTIES LATE THURSDAY WITH THE NEXT SHORTWAVE. THURSDAY SHOULD SEE THE STRONGEST SOUTHWEST BREEZES ACROSS THE CWA AS THE SFC GRADIENT TIGHTENS A BIT. WE WILL CONTINUE WITH THE SHORTWAVES ROTATING THROUGH EVERY 24 HOURS THROUGH SATURDAY. HOWEVER A CLOSED LOW WILL ESTABLISH ITSELF NORTH OF THE CENTRAL MONTANA CANADIAN BORDER WITH THE ASSOCIATED MAIN TROUGH AXIS APPROACHING THE ROCKIES WHICH WILL PRODUCE MORE NUMEROUS MAINLY LATE DAY SHOWERS AND THUNDERSTORMS AND CLOUDS WHICH WILL COOL TEMPS DOWN BY AROUND 5 TO 10 DEGREES BY FRIDAY. ON SATURDAY NIGHT THE MAIN TROUGH WILL TRACK ACROSS THE REGION FOR THE COOLEST WEATHER OF THE WEEK TO OCCUR SUNDAY BEHIND THE TROUGH AXIS BUT NOT AS COOL AS TEMPS WERE TWO WEEKENDS AGO. THE THREAT OF LATE DAY T STORMS WILL CONTINUE THROUGH SUNDAY AND MONDAY WITH A WEAK SHORT LIVED COOL FRONT DUE THROUGH THE AREA MONDAY. NEXT TUESDAY SHOULD FEATURE THE LEAST LIKELY DAY FOR ANY SHOWERS AS A RIDGE BUILDS IN WITH CONFLUENT FLOW. && .AVIATION.../00Z ISSUANCE/ EAST OF THE DIVIDE...KCOD/KCPR/KLND/KRIW/KWRL ROUTES VFR CONDITIONS WILL PREVAIL FOR ALL TERMINALS THROUGH 00Z THU. HOWEVER...HEATING DURING THE DAY AND ANOTHER WEAK UPPER LEVEL DISTURBANCE WILL CONTINUE TO KEEP WIDELY SCT TO SCT SHRA/TSRA IN THE AREA...MOVING E OVER THE LOWER ELEVATIONS AT AROUND 20 KTS THROUGH AT LEAST 03Z. HEAVY RAIN...SMALL HAIL AND ERRATIC WIND GUSTS TO 45 KTS WILL BE POSSIBLE UNDER THE STRONGER STORMS. THIS ACTIVITY WILL BRING OCCASIONAL PERIODS OF LOCALIZED MVFR CONDITIONS IN CIGS AND VIS...CONTINUING TO EFFECT THE TERMINALS THROUGH 3Z-4Z WITH LINGERING SHRA/ISOLD TSRA FROM 4Z-7Z WED...PERHAPS UNTIL 9Z AT KCPR. ANOTHER ROUND OF CONVECTION EXPECTED TOMORROW AFTER 19Z...ALBEIT A BIT MORE ISOLATED. HOWEVER...STRONGER TO SEVERE STORMS MAY BE POSSIBLE...ESPECIALLY BETWEEN KCPR AND KBYG AFTER 20Z. WEST OF THE DIVIDE...KBPI/KJAC/KPNA/KRKS ROUTES VFR CONDITIONS WILL PREVAIL FOR ALL TERMINALS THROUGH 00Z THU. HOWEVER...HEATING DURING THE DAY AND ANOTHER WEAK UPPER LEVEL DISTURBANCE WILL CONTINUE WIDELY SCT TO SCT SHRA/TSRA ACROSS THE AREA...MOVING E OVER THE LOWER VALLEYS AT AROUND 20 KTS THROUGH 03Z. HEAVY RAIN...SMALL HAIL AND ERRATIC WIND GUSTS TO 45 KTS WILL BE POSSIBLE UNDER THE STRONGER STORMS THROUGH 03Z. THIS ACTIVITY WILL BRING OCCASIONAL PERIODS OF LOCALIZED MVFR CONDITIONS IN CIGS AND VIS...CONTINUING TO EFFECT MOST TERMINALS THROUGH 3Z WITH LINGERING SHRA/ISOLD TSRA FROM 3Z-5Z WED...PERHAPS UNTIL 8Z AT KJAC. ANOTHER ROUND OF CONVECTION EXPECTED TOMORROW AFTER 19Z...ALBEIT A BIT MORE ISOLATED. && .FIRE WEATHER... WARMER AGAIN MOST AREAS TODAY. WIDELY SCATTERED TO SCATTERED CHANCES FOR SHOWERS AND THUNDER ACROSS THE FORECAST AREA...WITH BETTER CHANCES ACROSS THE MOUNTAINS AND ALONG/NEAR A SURFACE BOUNDARY FROM EASTERN ZONE 283...AND ALL OF 289 AND 280...WHERE UP TO A THIRD OF AN INCH OF LIQUID WILL BE POSSIBLE UNDER SOME SHOWERS/STORMS...LOCALLY HIGHER IF THE SHOWERS/STORMS REMAIN TERRAIN TIED. OTHERWISE...WINDS WILL TEND OUT OF THE EAST EAST OF THE DIVIDE...WEST TO SOUTHWEST WEST OF THE DIVIDE. WIND SPEEDS WILL RANGE FROM 10 TO 15 MPH WITH A FEW GUSTS 20 TO 25 MPH...HIGHER AND MORE ERRATIC UNDER/NEAR THUNDERSTORMS...WHERE OCCASIONAL GUSTS TO 50 MPH CAN BE EXPECTED...ESPECIALLY ACROSS THE SOUTHERN DISPATCH ZONES. WARMER EVERYWHERE WEDNESDAY EXCEPT FOR THE FAR WEST BEHIND A WEAK FRONTAL BOUNDARY WHERE HIGH TEMPS WILL RUN UP TO 5 DEG COOLER THAN TUESDAY. WEDNESDAY...CHANCES FOR ISOLATED TO WIDELY SCATTERED SCATTERED SHOWERS AND THUNDERSTORMS AGAIN ACROSS ALL ZONES EXCEPT FOR THE SOUTHERN DISPATCH ZONES WHICH WILL NOT HAVE MUCH OF A CHANCE FOR PRECIPITATION. WINDS WILL COME AROUND TO THE WEST/NORTHWEST FOR MOST ZONES AS THE FRONT MEANDERS EASTWARD DURING THE DAY. STRONGER GUSTY WEST WINDS WILL LAY ACROSS THE SOUTHERN ZONES 277 278 279 AND 289 WHERE WHERE IN COMBINATION WITH MIN RH VALUES OF MIDDLE TO UPPER TEENS...WILL ENHANCE FIRE WEATHER CONCERNS FOR ANY FIRE THAN GET STARTED...ALTHOUGH FUELS ARE NOT CONSIDERED CRITICAL AT THIS TIME. && .RIW WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...BRAUN LONG TERM...LIPSON AVIATION...BRAUN FIRE WEATHER...BRAUN
Hazardous weather outlook, Jun 24, 4:00 AM MDT, 14 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 400 AM MDT TUE JUN 24 2014 WYZ001>020-022>030-251200- ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST- BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS- EAST SWEETWATER COUNTY-FLAMING GORGE- GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS- NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN- NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS- ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES- SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN- SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY- TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- YELLOWSTONE NATIONAL PARK- 400 AM MDT TUE JUN 24 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED TO SCATTERED THUNDERSTORMS...WITH THE BEST CONCENTRATION EXPECTED ALONG AND EAST OF THE DIVIDE. SOME STORMS MAY BECOME STRONG WITH HAIL...LOCALLY HEAVY RAIN AND GUSTY WIND. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY WEDNESDAY AND THURSDAY...ISOLATED TO SCATTERED AFTERNOON AND EVENING THUNDERSTORMS. SOME STORMS WILL HAVE GUSTY WIND AND HAIL. FRIDAY...A CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE REGION. SATURDAY...ISOLATED AFTERNOON AND EVENING THUNDERSTORMS. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE URGED TO REPORT STRONG WIND GUSTS OR HAIL. TEAM RIVERTON
In the hours before
Special weather statement, Jun 24, 5:25 PM MDT, 1 hour 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
525 PM MDT TUE JUN 24 2014
WYZ017>019-250030-
GREEN MOUNTAINS AND RATTLESNAKE RANGE WY-LANDER FOOTHILLS WY-WIND
RIVER BASIN WY-
525 PM MDT TUE JUN 24 2014
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN FREMONT COUNTY UNTIL 630
PM MDT...
AT 518 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM GAS HILLS RD MILE
MARKER 10 TO 13 MILES NORTH OF U.S. HWY 287 MILE MARKER 30 TO CROOKS
GAP...AND MOVING EAST AT 15 MPH.
HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.
THESE STORMS WILL BE NEAR...
GAS HILLS RD MILE MARKER 10 AND JEFFREY CITY AROUND 530 PM MDT.
CASTLE GARDENS AROUND 630 PM MDT.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
BRIEF HEAVY RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES
AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A
FLOODED ROADWAY.
REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
RIVERTON AT 1-800-211-1448.
LAT...LON 4305 10758 4237 10758 4237 10832 4305 10832
TIME...MOT...LOC 2325Z 270DEG 15KT 4301 10823 4270 10789
4232 10788
BRAUNSpecial weather statement, Jun 24, 5:52 PM MDT, 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 552 PM MDT TUE JUN 24 2014 WYZ014-023>030-250200- EAST SWEETWATER COUNTY-FLAMING GORGE-ROCK SPRINGS AND GREEN RIVER- SALT RIVER AND WYOMING RANGES-SOUTH LINCOLN COUNTY-STAR VALLEY- UPPER GREEN RIVER BASIN-UPPER GREEN RIVER BASIN FOOTHILLS- WIND RIVER MOUNTAINS WEST- 552 PM MDT TUE JUN 24 2014 THROUGH 8 PM...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE TO TRACK EAST NORTHEAST ACROSS SOUTHWEST WYOMING. THE MAIN HAZARD WILL BE GUSTY WINDS TO 50 MPH...EVEN FROM WEAK SHOWER ACTIVITY. IN THE STRONGER THUNDERSTORMS ALSO EXPECT SMALL HAIL...OCCASIONAL LIGHTNING AND BRIEF HEAVY RAINFALL. 21
Special weather statement, Jun 24, 5:54 PM MDT, 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 554 PM MDT TUE JUN 24 2014 WYZ007-017-250100- OWL CREEK AND BRIDGER MOUNTAINS WY-WIND RIVER BASIN WY- 554 PM MDT TUE JUN 24 2014 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL FREMONT COUNTY UNTIL 700 PM MDT... AT 547 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 11 MILES NORTHEAST OF PAVILLION TO PILOT BUTTE RESERVOIR...AND MOVING EAST AT 25 MPH. HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. THESE STORMS WILL BE NEAR... OCEAN LAKE AROUND 600 PM MDT. BOYSEN STATE PARK HEADQUARTERS AND BOYSEN STATE PARK AROUND 640 PM MDT. HIDDEN VALLEY AROUND 655 PM MDT. SHOSHONI AROUND 700 PM MDT. IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. IN ADDITION...THESE STORMS 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. BRIEF HEAVY RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. REPORT HAZARDOUS WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4345 10784 4309 10815 4314 10887 4345 10856 TIME...MOT...LOC 2354Z 271DEG 20KT 4337 10850 4321 10866 BRAUN
Special weather statement, Jun 24, 6:03 PM MDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 603 PM MDT TUE JUN 24 2014 WYZ002>007-250200- ABSAROKA MOUNTAINS-CODY FOOTHILLS-NORTH BIG HORN BASIN- OWL CREEK AND BRIDGER MOUNTAINS-SOUTHEAST BIG HORN BASIN- SOUTHWEST BIG HORN BASIN- 603 PM MDT TUE JUN 24 2014 THROUGH 8 PM...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE ABSAROKA MOUNTAINS AND SPREAD EAST INTO THE BIG HORN BASIN. THE STRONGEST ACTIVITY IS EXPECTED TO OCCUR OVER THE WESTERN HALF OF THE BIG HORN BASIN. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING SOME HAIL...GUSTY WINDS TO 45 MPH...AND VERY HEAVY RAINFALL...AS WELL OCCASIONAL LIGHTNING. HEAVY RAINFALL IN A SHORT AMOUNT OF TIME COULD CAUSE MINOR FLOODING IN LOW LYING OR POOR DRAINAGE AREAS. 21
Special weather statement, Jun 24, 6:20 PM MDT, 18 minutes before
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</html>The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 6:16 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 59 min |
| Jun 24, 6:20 PM MDT | Special Weather Statement | RIW | Natrona | 55 min |
| Jun 24, 6:32 PM MDT | Special Weather Statement | RIW | Fremont | 43 min |
| Jun 24, 7:20 PM MDT | Special Weather Statement | RIW | 55 min | |
| Jun 24, 7:40 PM MDT | Special Weather Statement | RIW | Natrona | 50 min |
| Jun 24, 7:45 PM MDT | Special Weather Statement | RIW | Fremont | 60 min |
| Jun 24, 7:59 PM MDT | Special Weather Statement | RIW | 46 min | |
| Jun 24, 8:09 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Natrona | 66 min |
| Jun 24, 8:23 PM MDT | Special Weather Statement | RIW | Natrona | 67 min |
| Jun 24, 8:34 PM MDT | Special Weather Statement | RIW | Fremont | 56 min |
| Jun 24, 10:02 PM MDT | Special Weather Statement | RIW | Natrona | 58 min |
| Jun 24, 11:25 PM MDT | Special Weather Statement | RIW | 50 min | |
| Jun 25, 2:22 PM MDT | Special Weather Statement | RIW | Johnson | 23 min |
| Jun 25, 2:28 PM MDT | Special Weather Statement | RIW | 47 min | |
| Jun 25, 2:44 PM MDT | Severe Thunderstorm Warning | RIW | Johnson, Natrona | 46 min |
| Jun 25, 3:21 PM MDT | Special Weather Statement | RIW | Fremont | 39 min |
| Jun 25, 4:09 PM MDT | Special Weather Statement | RIW | Fremont | 36 min |
| Jun 25, 4:28 PM MDT | Special Weather Statement | RIW | 47 min | |
| Jun 25, 4:46 PM MDT | Special Weather Statement | RIW | 44 min | |
| Jun 25, 4:51 PM MDT | Special Weather Statement | RIW | Natrona | 54 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2014Every severe thunderstorm warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.