Alert archive / Wyoming / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 49, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 18, 2007, 11:16 PM MDT for Uinta County, Wyoming. It was in force for 14 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 18, 2007, 11:16 PM MDT (05:16 UTC)
- Expired
- Aug 18, 2007, 11:30 PM MDT
- In force
- 14 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Counties, with a storm outline in the text
County Uinta County, WY
The radar
The Salt Lake City radar (KMTX), 137 km from the middle of the area, began a volume at 05:18 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
Salt Lake City I, UT (KSLC), launched 00:00Z, 5.3 hours before the alert went out and 119 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
- 4 J/kg
- Mixed-layer CIN
- -271 J/kg
- Mixed-layer LCL
- 2739 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS55 KSLC 190516
SVRSLC
WYC041-190530-
/O.NEW.KSLC.SV.W.0049.070819T0516Z-070819T0530Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1116 PM MDT SAT AUG 18 2007
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN UINTA COUNTY IN SOUTHWEST WYOMING...
* UNTIL 1130 PM MDT
* AT 1114 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED OVER
NORTHWESTERN UINTA COUNTY...OR ABOUT 13 MILES SOUTHEAST OF
RANDOLPH...AND MOVING EAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
AREAS OF UINTA COUNTY.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THE STORM HAS PASSED.
THIS STORM IS CAPABLE OF PRODUCING PENNY SIZE HAIL. SEEK SHELTER IN A
STURDY STRUCTURE UNTIL THE STORM HAS PASSED.
THIS STORM IS CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING WINDS
IN EXCESS OF 60 MPH. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THE
STORM HAS PASSED.
LAT...LON 4158 11055 4155 11071 4140 11086 4139 11092
4137 11096 4135 11103 4157 11103 4157 11085
$$1 follow-up statement
000
WWUS55 KSLC 190532
SVSSLC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1132 PM MDT SAT AUG 18 2007
WYC041-190542-
/O.EXP.KSLC.SV.W.0049.000000T0000Z-070819T0530Z/
UINTA WY-
1132 PM MDT SAT AUG 18 2007
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN UINTA COUNTY
EXPIRES AT 1130 PM MDT...
THE STORM IS WEAKENING SLOWLY AS IT MOVES EAST ACROSS EXTREME
NORTHERN UINTA COUNTY. THEREFORE THE WARNING HAS BEEN ALLOWED
TO EXPIRE.
LAT...LON 4158 11055 4155 11071 4140 11086 4139 11092
4137 11096 4135 11103 4157 11103 4157 11085
$$The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 9:19 PM MDT | Severe Thunderstorm Warning | SLC | Uinta | 26 min |
| Aug 18, 9:43 PM MDT | Severe Thunderstorm Warning | SLC | Uinta | 32 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 2007Every severe thunderstorm warning in 2007
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.