Alert archive / Utah / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 76, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 12, 1997, 5:51 PM MDT for Tooele County, Utah. It was in force for 64 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 12, 1997, 5:51 PM MDT (23:51 UTC)
- Expired
- Aug 12, 1997, 6:55 PM MDT
- In force
- 64 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
County Tooele County, UT
The radar
The Salt Lake City radar (KMTX), 107 km from the middle of the area, began a volume at 23:53 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 |
|---|---|---|---|
| Aug 12, 6:00 PM MDT | Thunderstorm Wind 57 | (Dpg)Michael Aaf Dug, UT |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Elko, NV (KLKN), launched 12:00Z, 11.9 hours before the alert went out and 102 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
- -231 J/kg
- Mixed-layer LCL
- 1642 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSLC 122355 RRA SVRSLC UTC045-130055- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 551 PM MDT TUE AUG 12 1997 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY UT HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 655 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWESTERN UTAH ...SOUTHEASTERN TOOELE COUNTY AT 549 PM MDT...A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 14 MILES SOUTH OF DUGWAY MOVING EAST AT 25 MPH. THIS STORM CAN BE EXPECTED IN THE VICINITY OF... VERNON AT AROUND 625 PM MDT IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. THIS WARNING IS A CONTINUATION OF THE EARLIER WARNING FOR SOUTHEAST TOOELE COUNTY.
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 10:48 PM MDT | Severe Thunderstorm Warning | SLC | Kane | 62 min |
| Aug 12, 1:20 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 35 min |
| Aug 12, 3:13 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 47 min |
| Aug 12, 3:59 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 46 min |
| Aug 12, 4:48 PM MDT | Severe Thunderstorm Warning | SLC | Juab, Tooele | 62 min |
Nearby
Severe Thunderstorm Warnings in Utah, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.