Alert archive / Utah / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 61, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Jul 29, 1998, 7:33 PM MDT for Davis County, Salt Lake County, Utah. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 29, 1998, 7:33 PM MDT (01:33 UTC)
- Expired
- Jul 29, 1998, 8:15 PM MDT
- In force
- 42 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
Counties Davis County, UT, Salt Lake County, UT
The radar
The Salt Lake City radar (KMTX), 60 km from the middle of the area, began a volume at 01:36 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, 1.6 hours before the alert went out and 11 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
- 621 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 2346 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
994
WUUS1 KSLC 300136 RRA
SVRSLC
UTC011-035-300215-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
733 PM MDT WED JUL 29 1998
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
DAVIS COUNTY IN UTAH
NORTHWESTERN SALT LAKE COUNTY IN UTAH
INCLUDING KAYSVILLE...BOUNTIFUL...LAYTON AND SALT LAKE CITY
* UNTIL 815 PM MDT
* AT 725 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 9 MILES NORTHWEST OF SALT LAKE CITY
...MOVING EAST AT 25 MILES PER HOUR.
* OTHER LOCATIONS IN THE WARNING INCLUDE CLEARFIELD...NORTH SALT
LAKE...SYRACUSE...WEST VALLEY CITY...FARMINGTON...MURRAY...
CENTERVILLE AND MAGNA
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.The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 6:02 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder | 43 min |
| Jul 29, 7:00 PM MDT | Flash Flood Warning | SLC | Sanpete | 75 min |
| Jul 29, 8:06 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Morgan, Salt Lake | 39 min |
| Jul 30, 4:10 PM MDT | Severe Thunderstorm Warning | SLC | Duchesne, Summit, Wasatch | 50 min |
| Jul 30, 4:22 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 53 min |
| Jul 30, 4:32 PM MDT | Severe Thunderstorm Warning | SLC | Emery | 43 min |
| Jul 30, 5:38 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Weber | 52 min |
| Jul 30, 5:59 PM MDT | Severe Thunderstorm Warning | SLC | Weber | 31 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.