Alert archive / Utah / Flash Flood Warnings in 1992
Flash Flood Warning 10, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at May 29, 1992, 4:43 PM MDT for Kane County, Washington County, Utah. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- May 29, 1992, 4:43 PM MDT (22:43 UTC)
- Expired
- May 29, 1992, 7:00 PM MDT
- In force
- 2 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
Counties Kane County, UT, Washington County, UT
The nearest sounding before it
Ely/Yelland Fld, NV (KELY), launched 12:00Z, 10.7 hours before the alert went out and 288 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
- 125 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 1286 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSLC 292246 FFWSLC UTC025-053-300100- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 443 PM MDT FRI MAY 29 1992 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL UTAH ...WESTERN KANE COUNTY IN SOUTHWEST UTAH ...WASHINGTON COUNTY FLOODING HAS BEEN REPORTED BY PARK SERVICE PERSONNEL IN ZION PARK ALONG THE VIRGIN RIVER. STRONG THUNDERSTORMS WILL CONTINUE TO HAMMER SOUTHWEST UTAH THROUGH EARLY THIS EVENING WITH HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. r MOVE TO HIGHER GROUND TO ESCAPE RISING WATER. KNOW WHERE YOU ARE IN RELATION TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.
What forecasters said that day
The local office's own words before this flash flood 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 29, 11:08 AM MDT, 5 hours 35 minutes before
UTZALL-300000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1107 AM MDT FRI MAY 29 1992 ...ACTIVE THUNDERSTORMS EXPECTED OVER UTAH THROUGH THIS EVENING... A MOIST AND VERY UNSTABLE AIRMASS EXITS OVER UTAH TODAY. THIS CONDITION IS EXPECTED TO LAST AT LEAST THROUGH THIS EVENING. THE MAIN AREA OF SIGNIFICANT CONVECTION IS EXPECTED TO BE OVER SOUTHERN UTAH. THIS IS THE AREA WHERE THE AIRMASS IS THE MOST MOIST AND UNSTABLE. HOWEVER...A FRONTAL BOUNDARY HAS PUSHED INTO NORTHWEST UTAH AND WILL ACT AS A FOCUSING MECHANISM FOR THUNDERSTORMS AS IT MOVES THROUGH NORTHERN UTAH TODAY. THUS MOST OF UTAH CAN EXPECT SCATTERED THUNDERSTORMS THIS AFTERNOON THROUGH THIS EVENING ALONG WITH ASSOCIATED SMALL HAIL...GUSTY WINDS...LOCAL HEAVY RAIN...AND FREQUENT LIGHTNING. AT 11 AM THIS MORNING...THUNDERSTORMS WERE DEVELOPING OVER MUCH OF THE STATE. LIGHTNING DETECTION EQUIPMENT INDICATED THE MAIN AREAS OF LIGHTNING TO BE OVER SOUTHERN UTAH AND NEAR WENDOVER IN NORTHWEST UTAH. PERSONS PLANNING ON BEING OUT-OF-DOORS TODAY ARE ADVISED TO BE ON THE LOOKOUT FOR THREATENING WEATHER AND STAY TUNED TO NOAA WEATHER RADIO. IF CAUGHT OUTSIDE IN STRONG THUNDERSTORMS...SEEK SH!ELTER AS SOON AS YOU CAN. LIGHTNING KILLS...DO NOT BECOME A HUMAN LIGHTNING ROD. DO NOT STAND UNDER A TREE OR ANY TALL OBJECT IF LIGHTNING IS OCCURRING IN YOUR AREA. FURTHER STATEMENTS WILL BE ISSUED AS NECESSARY. ERC 1707Z
Special weather statement, May 29, 2:00 PM MDT, 2 hours 43 minutes before
UTZALL-300200-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
200 PM MDT FRI MAY 29 1992
...THUNDERSHOWERS FIRING...
THUNDERSHOWERS WILL BE WIDESPREAD IN MAINLY THE SOUTH AND EAST
PORTIONS OF THE UTAH THROUGH EARLY TONIGHT WITH AREAS OF MODERATE TO
BRIEF HEAVY RAIN...SMALL HAIL...GUSTY WINDS...AND DEADLY LIGHTNING.
ADDITIONALLY...THE SOUTHERN WASATCH FRONT AND WASATCH MOUNTAINS WILL
BE VULNERABLE TO THE AFOREMENTIONED ACTIVITY. IN THE NORTHWESTERN
CORNER OF THE STATE...THE WEATHER WILL BE MORE TRANQUIL.
A COOL FRONT CURRENTLY ALONG THE WASATCH FRONT WILL CONTINUE TO THE
SOUTH AND EAST THE REMAINDER OF THE AFTERNOON AND EVENING AND ACT TO
HELP FOCUS THE MORE SIGNIFICANT WEATHER. HOWEVER...AREAS IN SOUTHERN
UTAH ARE MOIST AND UNSTABLE WHERE THE WEATHER HAS ALREADY BEEN
SEVERE. AT 130 PM...BRYCE CANYON NATIONAL PARK HAD EXPERIENCED 3/4
INCH DIAMETER HAIL AND EVEN A FUNNEL CLOUD...HEAVY RAIN (.33 INCHES
PRECIPITATION IN 20 MINUTES).
CONDITIONS WILL BE IMPROVING SLOWLY FROM THE NORTHWEST AS THE
AFTERNOON AND EVENING PROGRESS.
PERSONS PLANNING ON BEING OUT-OF-DOORS TODAY ARE ADVISED TO BE ON THE
LOOKOUT FOR THREATENING WEATHER AND STAY TUNED TO NOAA WEATHER RADIO.
IF CAUGHT OUTSIDE IN STRONG THUNDERSTORMS...SEEK SHELTER AS SOON AS
YOU CAN. LIGHTNING KILLS...DO NOT BECOME A HUMAN LIGHTNING ROD. DO
NOT STAND UNDER A TREE OR ANY TALL OBJECT IF LIGHTNING IS OCCURRING
IN YOUR AREA.
FU_RTHER STATEMENTS WILL BE ISSUED AS NECESSARY.
ERC/WJA 1959ZThe office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 1:35 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 60 min |
Nearby
Flash Flood Warnings in Utah, 1992Every flash flood 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.