Alert archive / Wyoming / Special Weather Statements in 2015
Special Weather Statement, NWS Riverton, WY
NWS Riverton, WY issued this special weather statement at Jun 15, 2015, 3:13 PM MDT for Sweetwater County, Wyoming. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 15, 2015, 3:13 PM MDT (21:13 UTC)
- Expired
- Jun 15, 2015, 4:00 PM MDT
- In force
- 47 min
- Issued by
- NWS Riverton, WY
County Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 160 km from the middle of the area, began a volume at 21:14 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 12:00Z, 9.2 hours before the alert went out and 162 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 889 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 345 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jun 15, 12:38 PM MDT, 2 hours 35 minutes earlier.
Area forecast discussion, Jun 15, 12:38 PM MDT, 2 hours 35 minutes before
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</html>Hazardous weather outlook, Jun 15, 2:35 PM MDT, 38 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 235 PM MDT MON JUN 15 2015 WYZ001>020-022>030-161200- YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS- NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN- SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE- WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS- GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-STAR VALLEY- SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS- UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY- ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- 235 PM MDT MON JUN 15 2015 ...SEVERE THUNDERSTORM WATCH UNTIL 11 PM MDT FOR MUCH OF CENTRAL AND WESTERN WYOMING... ...FLASH FLOOD WATCH FOR NORTHERN AND CENTRAL WYOMING ALONG AND EAST OF THE CONTINENTAL DIVIDE FROM 3 PM THIS AFTERNOON THROUGH 12 MIDNIGHT TUESDAY NIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WY...CENTRAL WYOMING...NORTH CENTRAL WYOMING...NORTHWEST WYOMING...SOUTH CENTRAL WYOMING AND WEST CENTRAL WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED TO NUMEROUS THUNDERSTORMS. A FEW STRONG TO SEVERE THUNDERSTORMS ALSO EXPECTED ALONG WITH POTENTIAL FLASH FLOOD PRODUCING STORMS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY TUESDAY...ISOLATED TO SCATTERED THUNDERSTORMS ACROSS NORTHERN AND CENTRAL WYOMING. A FEW STRONG TO SEVERE THUNDERSTORMS WILL AGAIN BE POSSIBLE ALONG WITH SOME WITH VERY HEAVY RAIN WHICH WILL HAVE THE POTENTIAL TO PRODUCE FLASH FLOODING. WEDNESDAY AND THURSDAY...ISOLATED AFTERNOON AND EVENING THUNDERSTORMS ACROSS NORTHERN WYOMING. FRIDAY AND SATURDAY...ISOLATED TO SCATTERED THUNDERSTORMS MAINLY ALONG AND EAST OF THE DIVIDE. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY FLOODING...RIVERS OUT OF THEIR BANKS...OR NORMALLY DRY WASHES RUNNING WITH WATER. SPOTTERS ARE ALSO ENCOURAGED TO REPORT HEAVY RAIN...HAIL OF ANY SIZE...AND DAMAGING WIND GUSTS. THANK YOU. TEAM RIVERTON
In the hours before
Special weather statement, Jun 15, 1:35 PM MDT, 1 hour 38 minutes before
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</html>Special weather statement, Jun 15, 2:58 PM MDT, 15 minutes before
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</html>Special weather statement, Jun 15, 3:01 PM MDT, 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 301 PM MDT MON JUN 15 2015 WYZ012-013-152145- JACKSON HOLE-TETON AND GROS VENTRE MOUNTAINS- 301 PM MDT MON JUN 15 2015 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL TETON COUNTY UNTIL 345 PM MDT... AT 300 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ALTA...MOVING NORTHEAST AT 25 MPH. DIME SIZE HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STRONG THUNDERSTORM WILL BE NEAR... MOUNT MORAN AROUND 330 PM MDT. MORAN BAY AROUND 335 PM MDT. OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE TETON CAMPGROUND... SIGNAL MOUNTAIN CAMPGROUND...JACKSON LAKE LODGE...GRAND TARGHEE RESORT...LEEKS LODGE...TARGHEE VILLAGE GOLF COURSE...LIZARD CREEK CAMPGROUND...JENNY LAKE CAMPGROUND...SIGNAL MOUNTAIN LODGE AND JENNY LAKE LODGE. # PRECAUTIONARY/PREPAREDNESS ACTIONS... TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT FOR NORTHWESTERN WYOMING. LAT...LON 4409 11104 4408 11016 4357 11096 4359 11105 TIME...MOT...LOC 2100Z 208DEG 23KT 4371 11101 BRANHAM
Special weather statement, Jun 15, 3:13 PM MDT, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 313 PM MDT MON JUN 15 2015 WYZ028-030-152200- ROCK SPRINGS AND GREEN RIVER-EAST SWEETWATER COUNTY- 313 PM MDT MON JUN 15 2015 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL SWEETWATER COUNTY UNTIL 400 PM MDT... AT 312 PM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ROCK SPRINGS...MOVING EAST AT 30 MPH. DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STRONG THUNDERSTORM WILL BE NEAR... SWEETWATER COUNTY AIRPORT AROUND 320 PM MDT. SUPERIOR AROUND 335 PM MDT. # THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 103 AND 142. PRECAUTIONARY/PREPAREDNESS ACTIONS... VERY HEAVY RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO LOCALIZED FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. 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. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON. && A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT FOR SOUTH CENTRAL WYOMING. LAT...LON 4156 10925 4178 10929 4197 10862 4152 10854 TIME...MOT...LOC 2112Z 263DEG 27KT 4167 10917 13
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 7:03 PM MDT | Special Weather Statement | RIW | Fremont | 42 min |
| Jun 14, 7:05 PM MDT | Special Weather Statement | RIW | 40 min | |
| Jun 14, 7:14 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 18 min |
| Jun 14, 7:30 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 29 min |
| Jun 14, 7:39 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 51 min |
| Jun 14, 8:10 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 34 min |
| Jun 14, 8:54 PM MDT | Special Weather Statement | RIW | 36 min | |
| Jun 14, 9:30 PM MDT | Special Weather Statement | RIW | Natrona | 45 min |
| Jun 15, 11:56 AM MDT | Special Weather Statement | RIW | 49 min | |
| Jun 15, 12:42 PM MDT | Special Weather Statement | RIW | 33 min | |
| Jun 15, 1:35 PM MDT | Special Weather Statement | RIW | 10 min | |
| Jun 15, 2:39 PM MDT | Special Weather Statement | RIW | Teton | 36 min |
| Jun 15, 2:43 PM MDT | Special Weather Statement | RIW | Sweetwater | 47 min |
| Jun 15, 2:58 PM MDT | Special Weather Statement | RIW | Sweetwater | 47 min |
| Jun 15, 3:01 PM MDT | Special Weather Statement | RIW | Teton | 44 min |
| Jun 15, 3:45 PM MDT | Special Weather Statement | RIW | Sweetwater | 45 min |
| Jun 15, 3:48 PM MDT | Special Weather Statement | RIW | 42 min | |
| Jun 15, 4:16 PM MDT | Special Weather Statement | RIW | Teton | 44 min |
| Jun 15, 4:31 PM MDT | Special Weather Statement | RIW | 44 min | |
| Jun 15, 4:57 PM MDT | Tornado Warning | RIW | Lincoln | 33 min |
| Jun 15, 5:04 PM MDT | Special Weather Statement | RIW | 26 min | |
| Jun 15, 5:14 PM MDT | Special Weather Statement | RIW | Teton | 31 min |
| Jun 15, 5:31 PM MDT | Special Weather Statement | RIW | 29 min | |
| Jun 15, 5:38 PM MDT | Severe Thunderstorm Warning | RIW | Teton | 37 min |
Nearby
Special Weather Statements in Wyoming, 2015Every special weather statement in 2015
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.