Alert archive / Utah / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 73, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 25, 1998, 12:34 PM MDT for Salt Lake County, Tooele County, Utah County, Utah. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Aug 25, 1998, 12:34 PM MDT (18:34 UTC)
- Expired
- Aug 25, 1998, 1:30 PM MDT
- In force
- 56 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Salt Lake County, UT, Tooele County, UT, Utah County, UT
The radar
The Salt Lake City radar (KMTX), 97 km from the middle of the area, began a volume at 18:33 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 12:00Z, 6.6 hours before the alert went out and 32 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
- 2737 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
657
WUUS1 KSLC 251837 RRA
SVRSLC
UTC035-045-049-251930-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1234 PM MDT TUE AUG 25 1998
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EXTREME EAST CENTRAL TOOELE COUNTY IN UTAH
NORTHWESTERN UTAH COUNTY IN UTAH
SOUTHERN SALT LAKE COUNTY IN UTAH
* UNTIL 130 PM MDT
* AT 1233 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 12 MILES SOUTHWEST OF HERRIMAN...OR ABOUT
12 MILES SOUTHEAST OF TOOELE...MOVING NORTHEAST AT 20 MILES PER
HOUR.
* OTHER LOCATIONS IN THE WARNING INCLUDE SOUTH JORDAN...
RIVERTON...SUNDANCE...PLEASANT GROVE...ALPINE...AMERICAN FORK...
COPPERTON...HOLLADAY...BLUFFDALE...HERRIMAN...SANDY...LEHI AND
DRAPER
* SEVERE THUNDERSTORM WILL BE
9 MILES SOUTHWEST OF HERRIMAN AT 1245 PM MDT
3 MILES SOUTHWEST OF BLUFFDALE AT 105 PM MDT
2 MILES SOUTH OF DRAPER AT 120 PM MDT
VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.
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.
REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN SALT LAKE CITY.
LAT...LON 4054 11219 4025 11219 4036 11155 4047 11165
4079 11165The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 25, 1:16 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Weber | 59 min |
| Aug 25, 1:16 PM MDT | Severe Thunderstorm Warning | SLC | Salt Lake | 59 min |
Nearby
Severe Thunderstorm Warnings in Utah, 1998Every severe thunderstorm warning in 1998
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.