Alert archive / Wyoming / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 14, NWS Riverton, WY
NWS Riverton, WY issued this severe thunderstorm warning at Jun 9, 2006, 3:49 PM MDT for Fremont County, Wyoming. It was in force for 40 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 9, 2006, 3:49 PM MDT (21:49 UTC)
- Expired
- Jun 9, 2006, 4:29 PM MDT
- In force
- 40 min
- Issued by
- NWS Riverton, WY
- Area
- Counties, with a storm outline in the text
County Fremont County, WY
The radar
The Riverton/Lander radar (KRIW), 13 km from the middle of the area, began a volume at 21:52 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, 9.8 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
- 22 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 1542 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 9, 3:36 PM MDT, 13 minutes earlier.
Area forecast discussion, Jun 9, 3:36 PM MDT, 13 minutes before
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</html>Hazardous weather outlook, Jun 9, 1:51 PM MDT, 1 hour 58 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 151 PM MDT FRI JUN 9 2006 WYZ001>020-022>030-101100- 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- 151 PM MDT FRI JUN 9 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WILL BE ON THE INCREASE ACROSS WESTERN WYOMING THIS AFTERNOON AND EVENING. A FEW OF THE STORMS COULD BECOME SEVERE WITH PENNY TO QUARTER SIZE HAIL...WIND GUSTS OVER 60 MPH... FREQUENT LIGHTNING AND VERY HEAVY RAIN. THE MOST LIKELY AREA FOR THESE STRONGER STORMS WILL BE ACROSS TETON...LINCOLN...SUBLETTE AND FAR WESTERN SWEETWATER COUNTY. ALTHOUGH NOT AS NUMEROUS... THUNDERSTORMS WILL INCREASE IN COVERAGE EAST OF THE DIVIDE THIS AFTERNOON AND EVENING. A COUPLE OF THE STRONGER STORMS MAY PRODUCE WIND GUSTS TO 50 MPH...HAIL...FREQUENT LIGHTNING AND BRIEF HEAVY RAIN. LOCAL RAINFALL AMOUNTS OVER ONE INCH MAY FALL FROM SOME OF THE STRONGEST STORMS ACROSS THE WEST IN LESS THAN AN HOUR. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS ARE POSSIBLE SATURDAY. GUSTY WIND...SMALL HAIL...CLOUD TO GROUND LIGHTNING AND HEAVY RAINFALL WOULD BE THE MAIN HAZARDS ASSOCIATED WITH THE THUNDERSTORMS...ESPECIALLY OVER NORTHERN WYOMING. A WARM AND DRY SOUTH TO SOUTHWEST FLOW PATTERN APPEARS TO BE ON THE HORIZON FOR THE FIRST HALF OF NEXT WEEK. THIS PATTERN WOULD LIKELY INCREASE THE FIRE WEATHER HAZARD...ESPECIALLY ON TUESDAY AND WEDNESDAY ACROSS THE SOUTHWEST QUADRANT OF WYOMING. SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT HAIL OF ANY SIZE OR ANY WIND GUSTS EXCEEDING 50 MPH TO THE NATIONAL WEATHER SERVICE. ALSO...PLEASE PROVIDE RAINFALL TOTALS...ESPECIALLY THOSE APPROACHING A RATE OF ONE INCH PER HOUR. TEAM RIW
In the hours before
Local storm report, Jun 9, 1:01 PM MDT, 2 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
101 PM MDT FRI JUN 09 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1255 PM HAIL MAYOWORTH 43.83N 106.79W
06/09/2006 E0.75 INCH JOHNSON WY PUBLIC
1255 PM HAIL MAYOWORTH 43.83N 106.79W
06/09/2006 M0.75 INCH JOHNSON WY PUBLIC
&&
RESTELLLocal storm report, Jun 9, 2:17 PM MDT, 1 hour 32 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
217 PM MDT FRI JUN 09 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0125 PM TORNADO 28 SE BUFFALO 44.06N 106.32W
06/09/2006 JOHNSON WY PUBLIC
UNCONFIRMED TORNADO REPORTED 3 MILES NORTH OF POWDER
RIVER REST AREA ON I-90.
&&
ESTELLLocal storm report, Jun 9, 2:59 PM MDT, 50 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 9, 12:52 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 53 min |
| Jun 9, 1:40 PM MDT | Severe Thunderstorm Warning | RIW | Johnson | 50 min |
| Jun 9, 2:45 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 45 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2006Every severe thunderstorm warning in 2006
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.