Alert archive / Wyoming / Special Weather Statements in 2016
Special Weather Statement, NWS Riverton, WY
NWS Riverton, WY issued this special weather statement at Aug 26, 2016, 5:13 PM MDT for Natrona County, Wyoming. It was in force for 32 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
- Aug 26, 2016, 5:13 PM MDT (23:13 UTC)
- Expired
- Aug 26, 2016, 5:45 PM MDT
- In force
- 32 min
- Issued by
- NWS Riverton, WY
County Natrona County, WY
The radar
The Riverton/Lander radar (KRIW), 151 km from the middle of the area, began a volume at 23:14 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
Denver, CO (KDEN), launched 12:00Z, 11.2 hours before the alert went out and 454 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
- 1567 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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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 Aug 26, 3:12 PM MDT, 2 hours 1 minute earlier.
Area forecast discussion, Aug 26, 3:12 PM MDT, 2 hours 1 minute before
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</html>Hazardous weather outlook, Aug 26, 1:54 PM MDT, 3 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 154 PM MDT FRI AUG 26 2016 WYZ001>020-022>030-271100- 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- 154 PM MDT FRI AUG 26 2016 ...FIRE WEATHER WATCH FOR MUCH OF CENTRAL AND WESTERN WYOMING IN EFFECT FROM 12 NOON SATURDAY THROUGH 8 PM SATURDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...THIS AFTERNOON AND TONIGHT SHOWERS AND THUNDERSTORMS ANTICIPATED THROUGH THE DAY...WITH COVERAGE STEADILY INCREASING THIS AFTERNOON. GUSTY WIND...HEAVY RAIN...AND SMALL HAIL WILL BE POSSIBLE WITH STORMS TODAY. LIGHT SNOW WILL BE POSSIBLE ACROSS THE NORTHERN MOUNTAINS OVERNIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SATURDAY...WARM...DRY AND WIND CONDITIONS WILL BE PRESENT ACROSS SOUTHERN AND WESTERN WYOMING. THIS MAY RESULT IN ELEVATED TO POSSIBLY CRITICAL FIRE WEATHER CONDITIONS. WEDNESDAY AND THURSDAY...SLIGHT CHANCES OF THUNDERSTORMS SOUTH AND WEST. BREEZY AND WARM CONDITIONS WILL BRING ELEVATED FIRE WEATHER CONDITIONS ACROSS THE SOUTH AND CENTRAL. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY HAIL SIZES AND WIND GUSTS OVER 45 MPH. TEAM RIVERTON
In the hours before
Special weather statement, Aug 26, 4:13 PM MDT, 1 hour before
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</html>Special weather statement, Aug 26, 4:39 PM MDT, 34 minutes before
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</html>Special weather statement, Aug 26, 4:46 PM MDT, 27 minutes before
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</html>Special weather statement, Aug 26, 4:51 PM MDT, 22 minutes before
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</html>Special weather statement, Aug 26, 5:07 PM MDT, 6 minutes before
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</html>Special weather statement, Aug 26, 5:13 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 |
|---|---|---|---|---|
| Aug 25, 6:06 PM MDT | Special Weather Statement | RIW | Fremont | 24 min |
| Aug 25, 6:15 PM MDT | Special Weather Statement | RIW | 30 min | |
| Aug 25, 7:00 PM MDT | Special Weather Statement | RIW | 45 min | |
| Aug 25, 7:36 PM MDT | Special Weather Statement | RIW | 39 min | |
| Aug 25, 8:15 PM MDT | Special Weather Statement | RIW | 30 min | |
| Aug 25, 8:36 PM MDT | Special Weather Statement | RIW | Natrona | 24 min |
| Aug 25, 9:00 PM MDT | Special Weather Statement | RIW | Natrona | 45 min |
| Aug 26, 1:29 PM MDT | Fire Weather Watch | RIW | Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 5 more | 12 hr |
| Aug 26, 1:48 PM MDT | Special Weather Statement | RIW | Hot Springs | 27 min |
| Aug 26, 2:23 PM MDT | Special Weather Statement | RIW | Hot Springs | 22 min |
| Aug 26, 2:44 PM MDT | Severe Thunderstorm Warning | RIW | Hot Springs | 46 min |
| Aug 26, 3:03 PM MDT | Tornado Warning | RIW | Hot Springs | 17 min |
| Aug 26, 3:05 PM MDT | Tornado Warning | RIW | Hot Springs | 12 min |
| Aug 26, 3:28 PM MDT | Special Weather Statement | RIW | Washakie | 32 min |
| Aug 26, 3:51 PM MDT | Special Weather Statement | RIW | Washakie | 24 min |
| Aug 26, 4:13 PM MDT | Special Weather Statement | RIW | 32 min | |
| Aug 26, 4:39 PM MDT | Special Weather Statement | RIW | Sweetwater | 36 min |
| Aug 26, 4:46 PM MDT | Special Weather Statement | RIW | Natrona | 29 min |
| Aug 26, 4:51 PM MDT | Special Weather Statement | RIW | Johnson | 39 min |
| Aug 26, 5:07 PM MDT | Special Weather Statement | RIW | Natrona | 23 min |
| Aug 26, 5:16 PM MDT | Special Weather Statement | RIW | 29 min | |
| Aug 26, 5:30 PM MDT | Special Weather Statement | RIW | Natrona | 60 min |
| Aug 26, 5:46 PM MDT | Special Weather Statement | RIW | Natrona | 14 min |
Nearby
Special Weather Statements in Wyoming, 2016Every special weather statement in 2016
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.