Alert archive / Wyoming / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 37, NWS Riverton, WY

June 24, 2014Johnson County, Wyoming

NWS Riverton, WY issued this severe thunderstorm warning at Jun 24, 2014, 3:09 PM MDT for Johnson County, Wyoming. It was in force for 55 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, 3:09 PM MDT (21:09 UTC)
Expired: Jun 24, 2014, 4:04 PM MDT
In force: 55 min
Issued by: NWS Riverton, WY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Johnson County, WY

The radar

The Riverton/Lander radar (KRIW), 187 km from the middle of the area, began a volume at 21:11 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.

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, 11:30 AM MDT, 3 hours 39 minutes earlier.

Area forecast discussion, Jun 24, 11:30 AM MDT, 3 hours 39 minutes before

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Hazardous weather outlook, Jun 24, 4:00 AM MDT, 11 hours 9 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, 1:47 PM MDT, 1 hour 22 minutes before

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Special weather statement, Jun 24, 2:13 PM MDT, 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
213 PM MDT TUE JUN 24 2014

WYZ009>011-242115-
BIGHORN MOUNTAINS SOUTHEAST WY-NORTHEAST JOHNSON COUNTY WY-SOUTHEAST
JOHNSON COUNTY WY-
213 PM MDT TUE JUN 24 2014

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL JOHNSON COUNTY UNTIL 315
PM MDT...

AT 206 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR U.S. HWY 16 MILE MARKER 70...OR 11 MILES
SOUTHWEST OF BUFFALO...MOVING EAST AT 15 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

THIS STORM WILL BE NEAR...
STATE HWY 196 MILE MARKER 290 AROUND 230 PM MDT.
I25 MILE MARKER 290 AROUND 235 PM MDT.
I25 EXIT 280 AROUND 250 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 4426 10644 4403 10656 4414 10697 4431 10690
TIME...MOT...LOC 2013Z 285DEG 14KT 4420 10681

BRAUN

Special weather statement, Jun 24, 2:32 PM MDT, 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
232 PM MDT TUE JUN 24 2014

WYZ009>011-242200-
BIGHORN MOUNTAINS SOUTHEAST-NORTHEAST JOHNSON COUNTY-
SOUTHEAST JOHNSON COUNTY-
232 PM MDT TUE JUN 24 2014

THROUGH 4 PM...SCATTERED SHOWERS AND THUNDERSTORMS ARE DEVELOPING
OVER THE BIG HORNS THIS AFTERNOON. THIS ACTIVITY WILL TRY TO MOVE
EASTWARD AT AROUND 20 MPH OFF THE HIGHER TERRAIN THROUGH THE
AFTERNOON...BRINGING INCREASING CHANCES FOR BRIEF HEAVY RAIN...
OCCASIONAL LIGHTNING...AND SMALL HAIL TO THE REGION.

WYZ002-003-005-016-242200-
ABSAROKA MOUNTAINS-CODY FOOTHILLS-SOUTHWEST BIG HORN BASIN-
UPPER WIND RIVER BASIN-
232 PM MDT TUE JUN 24 2014

THROUGH 4 PM...SCATTERED SHOWERS AND THUNDERSTORMS ARE DEVELOPING
OVER THE HIGHER TERRAIN OF THE SOUTHERN AND EASTERN SLOPES OF
THE ABSAROKA MOUNTAINS. THIS ACTIVITY WILL TRY TO MOVE EASTWARD AT
AROUND 20 MPH THROUGH THE AFTERNOON...BRINGING INCREASING CHANCES FOR
BRIEF HEAVY RAIN...OCCASIONAL LIGHTNING...AND SMALL HAIL TO THE
REGION.

WYZ024-026-242200-
SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN-
232 PM MDT TUE JUN 24 2014

THROUGH 4 PM...SCATTERED SHOWERS AND THUNDERSTORMS ARE DEVELOPING
OVER THE SALT AND WYOMING MOUNTAINS THIS AFTERNOON. THIS ACTIVITY
WILL TRY TO MOVE EASTWARD AT AROUND 20 MPH OFF THE HIGHER TERRAIN
THROUGH THE AFTERNOON...BRINGING INCREASING CHANCES FOR BRIEF HEAVY
RAIN...WIND GUSTS TO 45 MPH...OCCASIONAL LIGHTNING...AND SMALL HAIL
TO THE REGION.

WYZ007-242200-
OWL CREEK AND BRIDGER MOUNTAINS-
232 PM MDT TUE JUN 24 2014

THROUGH 4 PM...SCATTERED SHOWERS AND THUNDERSTORMS ARE DEVELOPING
OVER THE HIGHER TERRAIN OF THE SOUTHERN SLOPES OF THE ABSAROKA
MOUNTAINS...MOVING EAST AT AROUND 20 MPH ALONG THE OWL CREEK
MOUNTAINS. EXPECT BRIEF HEAVY RAIN...OCCASIONAL LIGHTNING...AND HAIL
TO THREE QUARTERS OF AN INCH.

JB

Special weather statement, Jun 24, 2:41 PM MDT, 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
241 PM MDT TUE JUN 24 2014

WYZ002-005-007-242145-
ABSAROKA MOUNTAINS WY-OWL CREEK AND BRIDGER MOUNTAINS WY-SOUTHWEST
BIG HORN BASIN WY-
241 PM MDT TUE JUN 24 2014

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL HOT SPRINGS COUNTY UNTIL
345 PM MDT...

AT 235 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORMS 6 MILES SOUTHEAST OF ANCHOR DAM...OR 25 MILES
NORTH OF PAVILLION...MOVING EAST SOUTHEAST AT 15 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

THIS STORM WILL BE NEAR...
RURAL SOUTHERN HOT SPRINGS COUNTY THROUGH 345 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 4368 10811 4346 10821 4349 10845 4350 10846
      4351 10858 4353 10858 4353 10869 4357 10870
      4357 10881 4360 10882 4360 10893 4362 10899
      4378 10887
TIME...MOT...LOC 2040Z 278DEG 11KT 4360 10873

BRAUN

Special weather statement, Jun 24, 2:43 PM MDT, 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
243 PM MDT TUE JUN 24 2014

WYZ019-024-026-242200-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-SALT RIVER AND WYOMING RANGES-
UPPER GREEN RIVER BASIN-
243 PM MDT TUE JUN 24 2014

THROUGH 4 PM...SCATTERED SHOWERS AND THUNDERSTORMS ARE DEVELOPING
OVER THE SALT AND WYOMING MOUNTAINS THIS AFTERNOON. THIS ACTIVITY
WILL MOVE EASTWARD AT AROUND 20 MPH OFF THE HIGHER TERRAIN
THROUGH THE AFTERNOON...BRINGING INCREASING CHANCES FOR BRIEF HEAVY
RAIN...WIND GUSTS TO 45 MPH...OCCASIONAL LIGHTNING...AND SMALL HAIL
TO THE REGION.

JB

Special weather statement, Jun 24, 3:07 PM MDT, 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
307 PM MDT TUE JUN 24 2014

WYZ011-242200-
SOUTHEAST JOHNSON COUNTY WY-
307 PM MDT TUE JUN 24 2014

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL JOHNSON COUNTY UNTIL 400
PM MDT...

AT 303 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR STATE HWY 196 MILE MARKER 280...OR 21 MILES
SOUTH OF BUFFALO...MOVING EAST AT 20 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

THIS STORM WILL BE NEAR...
RURAL CENTRAL JOHNSON COUNTY THROUGH 400 PM MDT

THIS INCLUDES INTERSTATE 25 IN WYOMING BETWEEN MILE MARKERS 275 AND
290.

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 4408 10621 4382 10638 4398 10679 4414 10670
TIME...MOT...LOC 2108Z 291DEG 17KT 4403 10662

BRAUN

The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 12:46 PM MDT	Special Weather Statement	RIW	Hot Springs	59 min
Jun 24, 1:29 PM MDT	Special Weather Statement	RIW	Hot Springs	61 min
Jun 24, 1:47 PM MDT	Special Weather Statement	RIW	Hot Springs	43 min
Jun 24, 2:13 PM MDT	Special Weather Statement	RIW	Johnson	62 min
Jun 24, 2:41 PM MDT	Special Weather Statement	RIW	Hot Springs	64 min
Jun 24, 2:48 PM MDT	Severe Thunderstorm Warning	RIW	Fremont, Hot Springs	57 min
Jun 24, 3:07 PM MDT	Special Weather Statement	RIW	Johnson	53 min
Jun 24, 3:30 PM MDT	Special Weather Statement	RIW	Park	45 min
Jun 24, 3:40 PM MDT	Severe Thunderstorm Warning	RIW	Park	53 min
Jun 24, 4:03 PM MDT	Areal Flood Advisory	RIW	Park	2 hr
Jun 24, 4:08 PM MDT	Special Weather Statement	RIW	Johnson	67 min
Jun 24, 4:10 PM MDT	Special Weather Statement	RIW	Hot Springs	65 min
Jun 24, 4:24 PM MDT	Special Weather Statement	RIW	Fremont	51 min
Jun 24, 4:32 PM MDT	Special Weather Statement	RIW	Fremont	43 min
Jun 24, 4:35 PM MDT	Special Weather Statement	RIW		55 min
Jun 24, 4:37 PM MDT	Special Weather Statement	RIW	Big Horn	68 min
Jun 24, 5:09 PM MDT	Special Weather Statement	RIW	Johnson	66 min
Jun 24, 5:21 PM MDT	Special Weather Statement	RIW	Fremont	54 min
Jun 24, 5:25 PM MDT	Special Weather Statement	RIW		65 min
Jun 24, 5:54 PM MDT	Special Weather Statement	RIW	Fremont	66 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2014 Every 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; radar from the NEXRAD Level II archive.