Alert archive / Utah / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 3, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at May 6, 2016, 4:32 PM MDT for Box Elder County, Cache County, Utah. It was in force for 28 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 6, 2016, 4:32 PM MDT (22:32 UTC)
- Expired
- May 6, 2016, 5:00 PM MDT
- In force
- 28 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Storm-based polygon
Counties Box Elder County, UT, Cache County, UT
The radar
The Salt Lake City radar (KMTX), 47 km from the middle of the area, began a volume at 22:32 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 6, 4:50 PM MDT | TSTM WND GST 60 | Tremonton, UT | I-15 AT TREMONTON MESONET SITE |
| May 6, 4:50 PM MDT | TSTM WND GST 60 | Tremonton, UT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 12:00Z, 10.5 hours before the alert went out and 108 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
- 8 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 2710 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
099 WUUS55 KSLC 062233 SVRSLC UTC003-005-062300- /O.NEW.KSLC.SV.W.0003.160506T2232Z-160506T2300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 432 PM MDT FRI MAY 6 2016 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN BOX ELDER COUNTY IN UTAH... NORTHWESTERN CACHE COUNTY IN UTAH... * UNTIL 500 PM MDT * AT 430 PM MDT...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH AND QUARTER SIZE HAIL. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 19 MILES SOUTHWEST OF BEAR RIVER CITY TO NEAR CORINNE...AND MOVING NORTH AT 35 MPH. THIS LINE OF STORMS HAS A HISTORY OF PRODUCING WINDS IN EXCESS OF 60 MPH! * LOCATIONS IMPACTED INCLUDE... BRIGHAM CITY...TREMONTON...CACHE...PERRY...BEAR RIVER CITY...CORINNE... CLARKSTON...PLYMOUTH...HOWELL...RIVERSIDE...PETER...GARLAND...HONEYVILLE... MENDON...ELWOOD...NEWTON...FIELDING...DEWEYVILLE...BEAR RIVER AND BOTHWELL. PRECAUTIONARY/PREPAREDNESS ACTIONS... THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE. THIS IS A VERY DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4183 11268 4192 11200 4146 11198 4139 11252 TIME...MOT...LOC 2232Z 174DEG 30KT 4145 11244 4149 11214 $$
1 follow-up statement
948 WWUS55 KSLC 062253 SVSSLC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 452 PM MDT FRI MAY 6 2016 UTC003-005-062300- /O.CON.KSLC.SV.W.0003.000000T0000Z-160506T2300Z/ BOX ELDER UT-CACHE UT- 452 PM MDT FRI MAY 6 2016 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM MDT FOR NORTHEASTERN BOX ELDER AND NORTHWESTERN CACHE COUNTIES... AT 452 PM MDT...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS STRETCHED FROM NEAR PROMONTORY POINT TO NEAR TREMONTON AND WERE MOVING NORTH AT 35 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THE DAMAGING WINDS. THESE STORMS HAVE A HISTORY OF PRODUCING WINDS IN EXCESS OF 60 MPH! LOCATIONS IMPACTED INCLUDE... TREMONTON...CACHE...BEAR RIVER CITY...CORINNE...CLARKSTON...PLYMOUTH... HOWELL...RIVERSIDE...GARLAND...HONEYVILLE...ELWOOD...FIELDING...DEWEYVILLE... BEAR RIVER...BOTHWELL...PENROSE...THATCHER...GOLDEN SPIKE HISTORIC SITE... COLLINSTON AND PROMONTORY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE. THIS IS A DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4183 11268 4192 11200 4147 11211 4141 11250 TIME...MOT...LOC 2252Z 166DEG 29KT 4163 11248 4167 11218 $$
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 11:13 AM MDT | Wind Advisory | SLC | 4 hr | |
| May 6, 1:28 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne | 32 min |
| May 6, 1:44 PM MDT | Special Weather Statement | SLC | Salt Lake | 31 min |
| May 6, 3:29 PM MDT | Special Weather Statement | SLC | Davis | 31 min |
| May 6, 4:05 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Cache, Weber | 25 min |
| May 6, 4:59 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 31 min |
Nearby
Severe Thunderstorm Warnings in Utah, 2016Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.