Alert archive / Utah / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 49, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Jul 13, 2011, 4:40 PM MDT for Emery County, Utah. It was in force for 54 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
- Jul 13, 2011, 4:40 PM MDT (22:40 UTC)
- Expired
- Jul 13, 2011, 5:34 PM MDT
- In force
- 54 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
County Emery County, UT
The radar
The Grand Junction radar (KGJX), 206 km from the middle of the area, began a volume at 22:44 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
Grand Junction, CO (KGJT), launched 12:00Z, 10.7 hours before the alert went out and 180 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
- 86 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1031 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
059
WUUS55 KSLC 132240
SVRSLC
UTC015-132345-
/O.NEW.KSLC.SV.W.0049.110713T2240Z-110713T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
440 PM MDT WED JUL 13 2011
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTH CENTRAL EMERY COUNTY IN UTAH
* UNTIL 545 PM MDT
* AT 434 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 27
MILES WEST OF WOODSIDE...OR 27 MILES SOUTH OF PRICE...MOVING
NORTHEAST AT 30 MPH.
* LOCATIONS IN THE WARNING INCLUDE...
RURAL NORTHERN EMERY COUNTY...INCLUDING HIGHWAY 6 FROM THE EMERY
COUNTY LINE SOUTH TO WOODSIDE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
LAT...LON 3947 11071 3947 11028 3925 11015 3914 11072
3928 11088
TIME...MOT...LOC 2239Z 227DEG 27KT 3924 11082
$$
SEAMAN3 follow-up statements
982
WWUS55 KSLC 132256
SVSSLC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
456 PM MDT WED JUL 13 2011
UTC015-132345-
/O.CON.KSLC.SV.W.0049.000000T0000Z-110713T2345Z/
EMERY UT-
456 PM MDT WED JUL 13 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR NORTH CENTRAL EMERY COUNTY...
AT 454 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR CLEVELAND LLOYD DINOSAUR QUARRY...OR 20 MILES SOUTH OF
PRICE...MOVING NORTHEAST AT 30 MPH.
* LOCATIONS IN THE WARNING INCLUDE...
CLEVELAND LLOYD DINOSAUR QUARRY...
HIGHWAY 6 FROM THE EMERY COUNTY LINE SOUTH TO WOODSIDE.
LAT...LON 3947 11071 3947 11028 3925 11015 3914 11072
3928 11088
TIME...MOT...LOC 2255Z 227DEG 27KT 3932 11071
$$
SEAMAN365
WWUS55 KSLC 132311
SVSSLC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
511 PM MDT WED JUL 13 2011
UTC015-132345-
/O.CON.KSLC.SV.W.0049.000000T0000Z-110713T2345Z/
EMERY UT-
511 PM MDT WED JUL 13 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR NORTH CENTRAL EMERY COUNTY...
AT 508 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED 13 MILES NORTHWEST OF WOODSIDE...OR ABOUT 22 MILES SOUTHEAST
OF PRICE...MOVING NORTHEAST AT 40 MPH.
* LOCATIONS IN THE WARNING INCLUDE...
WOODSIDE
HIGHWAY 6 FROM THE CARBON COUNTY LINE SOUTH TO WOODSIDE
LAT...LON 3916 11064 3940 11076 3947 11071 3947 11028
3925 11015
TIME...MOT...LOC 2311Z 232DEG 34KT 3937 11053
$$
SEAMAN322
WWUS55 KSLC 132334
SVSSLC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
534 PM MDT WED JUL 13 2011
UTC015-132344-
/O.CAN.KSLC.SV.W.0049.000000T0000Z-110713T2345Z/
EMERY UT-
534 PM MDT WED JUL 13 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL EMERY COUNTY IS
CANCELLED...
THE STORM HAS EXITED THE WARNED AREA. THEREFORE THE WARNING HAS BEEN
CANCELLED.
LAT...LON 3916 11064 3940 11076 3947 11071 3947 11028
3925 11015
TIME...MOT...LOC 2334Z 232DEG 34KT 3950 11031
$$
SEAMANThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 4:08 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 39 min |
| Jul 13, 5:04 PM MDT | Severe Thunderstorm Warning | SLC | Carbon | 41 min |
| Jul 13, 5:44 PM MDT | Special Weather Statement | SLC | Emery | 46 min |
Nearby
Severe Thunderstorm Warnings in Utah, 2011Every severe thunderstorm warning in 2011
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.