Alert archive / Utah / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 4, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this severe thunderstorm warning at May 27, 1994, 6:08 PM MDT for Tooele County, Utah. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- May 27, 1994, 6:08 PM MDT (00:08 UTC)
- Expired
- May 27, 1994, 7:00 PM MDT
- In force
- 52 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
County Tooele County, UT
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 00:00Z, 0.1 hours before the alert went out and 110 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
- 12 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 2409 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSLC 280013 COR SVRSLC UTC011-035-057-045-280115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED NATIONAL WEATHER SERVICE SALT LAKE CITY UT 608 PM MDT FRI MAY 27 1994 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL UTAH ...DAVIS COUNTY...NORTHERN SALT LAKE COUNTY ...WESTERN WEBER COUNTY IN NORTHWEST UTAH ...NORTHEASTERN TOOELE COUNTY THE UTAH HIGHWAY PATROL HAS RECEIVED REPORTS OF 70-80 MPH WINDS WITH NEAR ZERO VISIBILITY AT THE TOOELE EXIT OF INTERSTATE 80, ABOUT 15 MILES WEST OF SALT LAKE CITY. SMALL HAIL AND HEAVY RAIN HAVE ALSO BEEN REPORTED IN THE NORTH OGDEN AREA. THE THUNDERSTORM PRODUCING THIS WIND IS MOVING NORTHEAST AT 30 MPH. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. ...CORRECTION TO REMOVE WORDS FOR HIGH WINDS EARLY IN TEXT...
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, May 27, 2:49 PM MDT, 3 hours 19 minutes before
UTZ001>003-010-270100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 245 PM MDT FRI MAY 27 1994 ...SEVERE THUNDERSTORM WATCH EXTREME NORTHERN UTAH UNTIL 700 PM... A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE EXTREME NORTHERN PORTION OF UTAH UNTIL 700 MDT THIS EVENING. THIS WATCH EXTENDS NORTH OF A LINE THAT RUNS EAST TO WEST THROUGH BRIGHAM CITY. COUNTIES IN THE WATCH AREA INCLUDE: NORTHERN BOX ELDER, CACHE, AND RICH. LARGER CITIES INCLUDE: LOGAN, TREMONTON AND BRIGHAM CITY. THIS WATCH INCLUDE BEAR LAKE STATE PARK. STRONG THUNDERSTORMS HAVE DEVELOPED ACROSS MUCH OF NORTHEAST NEVADA AND SOUTHERN IDAHO THIS AFTERNOON. THESE STORMS WILL DRIFT INTO EXTREME NORTHERN UTAH OVER THE NEXT SEVERAL HOURS. STRONG GUSTY WINDS IN EXCESS OF 60 MPH, SMALL HAIL AND FREQUENT CLOUD-TO-GROUND LIGHTNING ARE POSSIBLE WITH ANY THUNDERSTORM. REMEMBER, IF THUNDERSTORMS APPROACH YOUR AREA SEEK SHELTER IN A VEHICLE OR SOLID BUILDING. IF CAUGHT OUTDOORS, STAY AWAY FROM TALL SOLITARY OBJECTS THAT CAN ATTRACT LIGHTNING. FIND A LOW SPOT TO HIDE IN TO AVOID FLYING DEBRIS AND LIGHTNING. MCC...2045Z
Special weather statement, May 27, 5:08 PM MDT, 1 hour before
UTZ001>003-010-270100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 510 PM MDT FRI MAY 27 1994 ...SEVERE THUNDERSTORM WATCH CONTINUING EXTREME NORTHERN UTAH UNTIL 700 PM... ...STRONG THUNDERSTORMS MOVING TOWARD NORTH-CENTRAL BOX ELDER COUNTY... THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE EXTREME NORTHERN PORTION OF UTAH UNTIL 700 MDT THIS EVENING. THIS WATCH EXTENDS NORTH OF A LINE THAT RUNS EAST TO WEST THROUGH BRIGHAM CITY. COUNTIES IN THE WATCH AREA INCLUDE: NORTHERN BOX ELDER, CACHE, AND RICH. LARGER CITIES INCLUDE: LOGAN, TREMONTON AND BRIGHAM CITY. THIS WATCH INCLUDE BEAR LAKE STATE PARK. AT 500 PM RADAR AND SATELLITE OBSERVATIONS INDICATED TWO STRONG THUNDERSTORM AREAS, ONE ABOUT 20 MILES EAST OF LUCIN AND THE OTHER ABOUT 20 MILES EAST OF WENDOVER. THESE THUNDERSTORMS WERE MOVING TOWARD THE NORTHEAST AT ABOUT 30 MPH. THESE STORMS SHOULD MOVE ACROSS NORTHERN BOX ELDER COUNTY IN THE AREA BETWEEN PARK VALLEY ON THE WEST AND TREMONTON ON THE EAST IN THE BETWEEN NOW AND ABOUT 630 PM. THESE STORMS DEVELOPED RAPIDLY AND ADDITIONAL STORMS MAY ALSO DEVELOP QUICKLY IN OR NEAR THE WATCH AREA. EVERYONE IN EXTREME NORTHERN UTAH SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS THROUGH THE EARLY EVENING HOURS. STRONG GUSTY WINDS OVER 50 MPH AND LARGE HAIL HAVE ALREADY BEEN REPORTED FROM SOME OF THE THUNDERSTORMS ASSOCIATED WITH THIS WEATHER SYSTEM. REMEMBER...SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND...DESTRUCTIVE HAIL... DEADLY LIGHTNING...AND VERY HEAVY RAIN. TAKE COVER WHEN THUNDERSTORMS APPROACH YOUR AREA. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. DRS...2308Z
Special weather statement, May 27, 6:05 PM MDT, 3 minutes before
UTZ001>003-010-270100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 604 PM MDT FRI MAY 27 1994 ...SEVERE THUNDERSTORM WATCH CONTINUING EXTREME NORTHERN UTAH UNTIL 700 PM... ...STRONG THUNDERSTORMS NEAR THE GREAT SALT LAKE... THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE EXTREME NORTHERN PORTION OF UTAH UNTIL 700 MDT THIS EVENING. THIS WATCH EXTENDS NORTH OF A LINE THAT RUNS EAST TO WEST THROUGH BRIGHAM CITY. COUNTIES IN THE WATCH AREA INCLUDE: NORTHERN BOX ELDER, CACHE, AND RICH. LARGER CITIES INCLUDE: LOGAN, TREMONTON AND BRIGHAM CITY. THIS WATCH INCLUDE BEAR LAKE STATE PARK. AT 550 PM RADAR AND SATELLITE OBSERVATIONS INDICATED A LINE OF THUNDERSTORMS, SOME OF THEM STRONG, EXTENDING FROM NEAR MALAD, IDAHO TO A POINT ABOUT 30 MILES WEST OF SALT LAKE CITY THEN TO DUGWAY. WINDS GUSTING OVER 55 MPH HAVE BEEN REPORTED WITH THESE THUNDERSTORMS AT LAKESIDE...35 MILES WEST OF PROMONTORY POINT AND JUST NORTH OF GRANTSVILLE...10 MILES WEST NORTHWEST OF TOOELE. THESE THUNDERSTORMS CONTINUE TO MOVE TOWARD THE NORTHEAST AT ABOUT 30 MPH. THE LEADING EDGE OF THE THUNDERSTORMS WILL MOVE ACROSS THE NORTHERN PORTION OF THE WASATCH FRONT, FROM ABOUT HILL AIR FORCE BASE NORTHWARD BY 630 PM. POINTS FARTHER SOUTH FROM HILL FIELD TO SOUTHERN SALT LAKE COUNTY WILL LIKELY SEE THE FIRST EFFECTS OF THESE STORMS BETWEEN 630 AND 730 THIS EVENING. MOVE INSIDE A STRONG BUILDING WHEN THUNDERSTORMS ARE OCCURRING. DO NOT STAND BY WINDOWS. AVOID THE USE OF TELEPHONES AND ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. DRS...0003Z
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 6:08 PM MDT | Severe Thunderstorm Warning | SLC | Davis, Salt Lake, Weber | 67 min |
| May 27, 6:40 PM MDT | Severe Thunderstorm Warning | SLC | Salt Lake | 50 min |
| May 27, 7:14 PM MDT | Severe Thunderstorm Warning | SLC | Rich | 46 min |
| May 27, 8:24 PM MDT | Severe Thunderstorm Warning | SLC | Utah | 36 min |
Nearby
Severe Thunderstorm Warnings in Utah, 1994Every severe thunderstorm warning in 1994
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.