Alert archive / Utah / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 97, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Sep 10, 1998, 1:05 PM MDT for Garfield County, Kane County, Utah. It was in force for 55 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
- Sep 10, 1998, 1:05 PM MDT (19:05 UTC)
- Expired
- Sep 10, 1998, 2:00 PM MDT
- In force
- 55 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
Counties Garfield County, UT, Kane County, UT
The radar
The Cedar City radar (KICX), 105 km from the middle of the area, began a volume at 19:09 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 7.1 hours before the alert went out and 260 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
- 17 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 1391 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
871
WUUS1 KSLC 101910 RRA
SVRSLC
UTC017-025-053-102000-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
105 PM MDT THU SEP 10 1998
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN GARFIELD COUNTY IN UTAH
SOUTHEASTERN WASHINGTON COUNTY IN UTAH
WESTERN KANE COUNTY IN UTAH
INCLUDING KANAB
* UNTIL 200 PM MDT
* AT 1257 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERE THUNDERSTORMS 7 MILES NORTHEAST OF ZION NP...OR ABOUT 24
MILES NORTHWEST OF KANAB...MOVING NORTHEAST AT 20 MILES
PER HOUR. A SECOND STRONG THUNDERSTORM WAS LOCATED 12 MILES
SOUTH OF ZION NATIONAL PARK OR 25 MILES WEST OF KANAB.
IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
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 |
|---|---|---|---|---|
| Sep 9, 6:45 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Davis, Tooele | 60 min |
| Sep 10, 1:05 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 55 min |
| Sep 10, 2:00 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Piute | 60 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.