Alert archive / Wyoming / Special Weather Statements in 2014
Special Weather Statement, NWS Riverton, WY
NWS Riverton, WY issued this special weather statement at Sep 7, 2014, 1:25 PM MDT for Washakie County, Wyoming. It was in force for 50 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
- Sep 7, 2014, 1:25 PM MDT (19:25 UTC)
- Expired
- Sep 7, 2014, 2:15 PM MDT
- In force
- 50 min
- Issued by
- NWS Riverton, WY
County Washakie County, WY
The radar
The Riverton/Lander radar (KRIW), 113 km from the middle of the area, began a volume at 19:26 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, 7.4 hours before the alert went out and 109 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
- 2401 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 67 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 Sep 7, 11:00 AM MDT, 2 hours 25 minutes earlier.
Area forecast discussion, Sep 7, 11:00 AM MDT, 2 hours 25 minutes before
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</html>Hazardous weather outlook, Sep 7, 5:00 AM MDT, 8 hours 25 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 500 AM MDT SUN SEP 7 2014 WYZ001>020-022>030-081100- 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- 500 AM MDT SUN SEP 7 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT ISOLATED TO WIDELY SCATTERED MOUNTAIN THUNDERSTORMS ACROSS THE FORECAST AREA TODAY AND THIS EVENING WILL ALLOW FOR OCCASIONAL LIGHTNING STRIKES...SMALL HAIL AND GUSTY ERRATIC WINDS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY MONDAY...ISOLATED TO WIDELY SCATTERED AFTERNOON AND EVENING THUNDERSTORMS...MAINLY ACROSS THE SOUTHERN HALF OF THE FORECAST AREA. HEAVY RAIN WILL BE POSSIBLE WITH SOME STORMS ACROSS THE SOUTH. TUESDAY...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS SOUTH. ISOLATED SHOWERS AND STORMS CENTRAL AND NORTH. WIDELY SCATTERED TO SCATTERED SHOWERS AND ISOLATED STORMS TUESDAY NIGHT... WITH SNOW SHOWERS POSSIBLE ABOVE 8500 FEET IN THE HIGHER REACHES OF THE NORTHERN MOUNTAINS. WEDNESDAY AND THURSDAY...A STRONG CANADIAN COLD FRONT WILL BRING THE POTENTIAL FOR SIGNIFICANT SNOW IN THE NORTHERN BIGHORN RANGE...ALONG WITH HAZARDOUS WINTER DRIVING CONDITIONS OVER MOUNTAIN PASSES. A FEW INCHES OF SNOW MAY ACCUMULATE IN THE LOWER ELEVATIONS ACROSS NORTHERN WYOMING WEDNESDAY NIGHT AND THURSDAY MORNING...MAINLY ALONG AND NORTH OF INTERSTATE 90 ACROSS JOHNSON COUNTY. FRIDAY...A WIDESPREAD FREEZE OR FROST POSSIBLE ACROSS THE LOWER ELEVATIONS OF CENTRAL WYOMING FRIDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. TEAM RIVERTON
In the hours before
Special weather statement, Sep 7, 7:45 AM MDT, 5 hours 40 minutes before
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</html>Special weather statement, Sep 7, 1:00 PM MDT, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 100 PM MDT SUN SEP 7 2014 WYZ005>007-071945- OWL CREEK AND BRIDGER MOUNTAINS WY-SOUTHEAST BIG HORN BASIN WY-SOUTHWEST BIG HORN BASIN WY- 100 PM MDT SUN SEP 7 2014 ...SIGNIFICANT WEATHER ADVISORY FOR WESTERN WASHAKIE AND EASTERN HOT SPRINGS COUNTIES UNTIL 145 PM MDT... AT 1257 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR WINCHESTER...OR 14 MILES NORTH OF THERMOPOLIS...MOVING EAST AT 20 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. THIS STORM WILL BE NEAR... RURAL WESTERN WASHAKIE COUNTY THROUGH 145 PM MDT RURAL CENTRAL HOT SPRINGS COUNTY THROUGH 145 PM MDT RURAL CENTRAL WASHAKIE COUNTY THROUGH 145 PM MDT RURAL EASTERN HOT SPRINGS COUNTY THROUGH 145 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 4407 10768 4359 10771 4367 10826 4407 10824 TIME...MOT...LOC 1900Z 274DEG 16KT 4384 10814 SKRBAC
Special weather statement, Sep 7, 1:25 PM MDT, 0 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 |
|---|---|---|---|---|
| Sep 7, 12:22 PM MDT | Special Weather Statement | RIW | Hot Springs | 38 min |
| Sep 7, 1:00 PM MDT | Special Weather Statement | RIW | Washakie | 45 min |
| Sep 7, 2:02 PM MDT | Special Weather Statement | RIW | Johnson | 43 min |
| Sep 7, 2:04 PM MDT | Special Weather Statement | RIW | 41 min | |
| Sep 7, 2:06 PM MDT | Special Weather Statement | RIW | Teton | 39 min |
| Sep 7, 2:18 PM MDT | Severe Thunderstorm Warning | RIW | Johnson, Washakie | 57 min |
| Sep 7, 2:27 PM MDT | Special Weather Statement | RIW | 48 min | |
| Sep 7, 2:40 PM MDT | Special Weather Statement | RIW | 50 min | |
| Sep 7, 2:41 PM MDT | Special Weather Statement | RIW | Johnson | 49 min |
| Sep 7, 2:58 PM MDT | Special Weather Statement | RIW | Sublette | 47 min |
| Sep 7, 3:13 PM MDT | Special Weather Statement | RIW | 47 min | |
| Sep 7, 3:19 PM MDT | Special Weather Statement | RIW | 41 min | |
| Sep 7, 3:26 PM MDT | Special Weather Statement | RIW | Big Horn | 49 min |
| Sep 7, 3:30 PM MDT | Special Weather Statement | RIW | Fremont | 45 min |
| Sep 7, 3:41 PM MDT | Special Weather Statement | RIW | Fremont | 49 min |
| Sep 7, 4:04 PM MDT | Special Weather Statement | RIW | Fremont | 26 min |
| Sep 7, 4:21 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 26 min |
| Sep 7, 4:22 PM MDT | Special Weather Statement | RIW | Big Horn | 23 min |
| Sep 7, 4:28 PM MDT | Special Weather Statement | RIW | Sublette | 47 min |
| Sep 7, 4:52 PM MDT | Special Weather Statement | RIW | 38 min |
Nearby
Special Weather Statements in Wyoming, 2014Every special weather statement 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.