Alert archive / Utah / Flash Flood Warnings in 1989
Flash Flood Warning 3, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 27, 1989, 7:01 PM MDT for Garfield County, Iron County, Utah. It was in force for 74 min.
The area
The counties it named.
The facts
- Issued
- Jul 27, 1989, 7:01 PM MDT (01:01 UTC)
- Expired
- Jul 27, 1989, 8:15 PM MDT
- In force
- 74 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
Counties Garfield County, UT, Iron County, UT
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Ely/Yelland Fld, NV (KELY), launched 00:00Z, 1.0 hours before the alert went out and 264 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
- 117 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 3690 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 21 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 280104 RRA
FFWSLC
UTC017-021-280300-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
701 PM MDT THU JUL 27 1989
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 900 PM MDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH CENTRAL UTAH
...WESTERN GARFIELD
IN SOUTHWEST UTAH
...EASTERN IRON
THE CEDAR CITY WEATHER RADAR SHOWS A VERY HEAVY THUNDERSTORM MOVING
INTO NORTHEASTERN IRON COUNTY AT 7 P.M. A SPOTTER IN PAROWAN REPORTED
VERY HEAVY RAINFALL AS WELL. THE THUNDERSTORMS WAS MOVING SLOWLY FROM
NORTH TO SOUTH AND WILL BE IN THE CEDAR CITY AREA FOR AT LEAST A
COUPLE OF HOURS.
ALSO A VERY HEAVY THUNDERSTORMS WAS MOVING INTO NORTHWESTERN GARFIELD
COUNTY. THIS THUNDERSTORM HAS DEVELOPED VERY RAPIDLY DURING THE PAST
HOUR.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY. MOVE TO HIGHER GROUND.
DMC...0105ZWhat 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, Jul 27, 5:07 PM MDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
505 PM MDT THU JUL 27 1989
...HEAVY THUNDERSTORMS OVER THE SOUTHWEST...
SPOTTERS IN EASTERN WASHINGTON COUNTY INCLUDING ZION NATIONAL PARK HAVE
REPORTED HEAVY RAINFALL FROM A CLUSTER OF THUNDERSTORMS THAT HAS MOVED
NORTHWARD INTO THE STATE. A SPOTTER IN SPRINGDALE RECEIVED 0.90 INCHES
OF RAIN IN LESS THAN 30 MINUTES. SMALL HAIL HAS ACCOMPANIED THE HEAVY
RAINFALL. THE PARK SERVICE IN ZION NATIONAL PARK REPORTED HEAVY
RAINFALL AND SMALL HAIL ALSO. A SMALL ROCK SLIDE HAD OCCURRED OVER ONE
OF THE ROAD WAYS IN THE PARK.
RADAR INDICATES THAT THESE STORMS CONTINUE TO SHOW HEAVY RAINFALL AND
ARE MOVING SLOWLY NORTHWARD. PERSONS DRIVING THROUGH THIS AREA OF THE
STATE... OR INVOLVED IN OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR BRIEF
HEAVY RAINFALL AND SMALL HAIL.
ROCK SLIDES AND ROADWAYS COVERED WITH WATER MAY ALSO BE ENCOUNTERED.
ADDITIONAL STATEMENTS WILL BE ISSUED AS NEEDED.
DMC...2305ZNearby
Flash Flood Warnings in Utah, 1989Every flash flood warning in 1989
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.