Alert archive / Utah / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 33, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at Sep 23, 1992, 6:34 PM MDT for Salt Lake County, Utah. It was in force for 41 min.
The area
The counties it named.
The facts
- Issued
- Sep 23, 1992, 6:34 PM MDT (00:34 UTC)
- Expired
- Sep 23, 1992, 7:15 PM MDT
- In force
- 41 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
County Salt Lake County, UT
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 00:00Z, 0.6 hours before the alert went out and 13 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
- 108 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 3409 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 35 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 240039 SVRSLC UTC035-240115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 634 PM MDT WED SEP 23 1992 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION...... IN NORTH CENTRAL UTAH ...NORTHERN SALT LAKE COUNTY AT 630 PM MDT...A LINE OF STRONG THUNDERSTORMS WAS MOVING ACROSS NORTH CENTRAL UTAH. THE THUNDERSTORMS STRETCHED FROM JUST NORTH OF LOGAN...SOUTH TO AROUND THE SALT PLANT ON THE SOUTH SIDE OF THE GREAT SALT LAKE. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 20 MPH. THIS MOVEMENT WILL TAKE THE THUNDERSTORMS ACROSS THE NORTHERN HALF OF SALT LAKE COUNTY BY 715 PM MDT. AT 625 PM MDT...A WIND GUST OF 58 MPH WAS REPORTED AT THE SALT PLANT FROM A THUNDERSTORM. STRONG GUSTY WINDS OF 60-70 MPH ARE POSSIBLE ACROSS NORTHERN SALT LAKE COUNTY THROUGH 715 PM THIS EVENING ALONG WITH HEAVY RAIN. VISIBILITIES MAY BE REDUCED TO NEAR ZERO FROM BLOWING DUST... ESPECIALLY ALONG I-80 JUST SOUTH OF THE GREAT SALT LAKE. MOVE INSIDE A STRONG BUILDING WHEN THUNDERSTORMS ARE OCCURRING. DO NOT STAND BY WINDOWS. AVOID THE USE OF TELEPHONES AND ELECTRICAL APPLIANCES UNLESS IN AND EMERGENCY UNTIL THE STORM HAS PASSED. LOOSE OBJECTS CAN BE DANGEROUS IF THEY BECOME AIRBORNE IN STRONG THUNDERSTORM WINDS. TAKE PRECAUTIONS TO TIE DOWN LOOSE OBJECTS OR BRING THEM INDOORS. TWM...0038Z.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Sep 23, 4:51 PM MDT, 1 hour 43 minutes before
UTZ001-002-003-240100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 450 PM MDT WED SEP 23 1992 ...THUNDERSTORMS WITH GUSTY WINDS MOVING INTO NORTHWEST UTAH... RADAR AND LIGHTNING DETECTION EQUIPMENT INDICATES A LINE OF THUNDERSTORMS DEVELOPING OVER NORTHWEST UTAH. THE LEADING EDGE OF THE THUNDERSTORMS EXTENDS FROM NEAR MALAD CITY IDAHO...SOUTHWEST TO NEAR ELY NEVADA. THE ATMOSPHERE IS RELATIVELY DRY NEAR THE SURFACE. THIS INCREASES THE CHANCES FOR GUSTY MICROBURST WINDS WITH ANY OF THE THUNDERSTORMS. WIND GUSTS OF 40-50 MPH ARE POSSIBLE WITH SOME OF THE STRONGER THUNDERSTORMS ACROSS NORTHWEST UTAH THIS EVENING. THE LINE OF THUNDERSTORMS IS MOVING EAST AROUND 15 MPH. SOME OF THE THUNDERSTORMS AND ASSOCIATED GUSTY WINDS MAY MOVE INTO THE SALT LAKE VALLEY EARLY THIS EVENING. TWM...2250Z.
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 6:11 PM MDT | Severe Thunderstorm Warning | SLC | Cache, Rich, Weber | 49 min |
| Sep 23, 6:11 PM MDT | Severe Thunderstorm Warning | SLC | Davis | 49 min |
| Sep 23, 7:16 PM MDT | Severe Thunderstorm Warning | SLC | Morgan, Rich, Summit | 59 min |
| Sep 23, 7:34 PM MDT | Severe Thunderstorm Warning | SLC | Box Elder, Tooele | 56 min |
Nearby
Severe Thunderstorm Warnings in Utah, 1992Every severe thunderstorm warning in 1992
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.