Alert archive / Utah / Flash Flood Warnings in 1993
Flash Flood Warning 1, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Aug 9, 1993, 8:10 PM MDT for Wayne County, Utah. It was in force for 110 min.
The area
The counties it named.
The facts
- Issued
- Aug 9, 1993, 8:10 PM MDT (02:10 UTC)
- Expired
- Aug 9, 1993, 10:00 PM MDT
- In force
- 110 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
County Wayne County, UT
The nearest sounding before it
Grand Junction, CO (KGJT), launched 00:00Z, 2.2 hours before the alert went out and 227 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
- -26 J/kg
- Mixed-layer LCL
- 2539 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 10 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 100211 FFWSLC UTC055-100415- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 810 PM MDT MON AUG 9 1993 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1015 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL UTAH ...WESTERN WAYNE COUNTY THUNDERSTORMS NEAR BICKNELL DUMPED .55 OF AN INCH IN 30 MINUTES AND CAUSED WATERS COMING OUT OF RED CANYON NEAR THE BICKNELL CITY LIMITS TO WASH OUT BETWEEN 1000-2000 FEET OF STATE ROAD 24. IT IS STILL RAINING IN THE CANYON AND HIGH WATERS MAY LAST FOR ANOTHER HOUR. THESE FLOOD WATERS WILL EMPTY INTO THE FREMONT RIVER WHICH RUNS EASTWARD BY THE TOWNS OF TEASDALE AND TORREY AND THEN RUNS THROUGH CAPITAL REEF NATIONAL PARK. RESIDENTS AND TRAVELERS IN THIS AREA NEED TO BE ALERT FOR POSSIBLE FLOODING OF THE FREMONT RIVER. 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. SMITH...0210Z &
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, Aug 9, 5:40 PM MDT, 2 hours 30 minutes before
UTZALL-100500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 545 PM MDT MON AUG 9 1993 ...STRONG THUNDERSTORMS MOVING THROUGH UTAH THIS EVENING... CONDITIONS ARE FAVORABLE FOR STRONG THUNDERSTORMS IN UTAH TONIGHT. AT 530 PM RADAR AND SATELLITE PICTURES SHOWED THE STRONGEST THUNDERSTORMS WERE IN AN AREA BETWEEN DELTA AND DUGWAY...ALSO 15 MILES SOUTHWEST OF PRICE...10 MILES SOUTH OF MILFORD...AND 10 MILES SOUTH OF BULLFROG. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. THE THUNDERSTORMS BETWEEN DELTA AND DUGWAY WILL MOVE INTO THE MORE POPULATED AREAS OF THE WASATCH FRONT BETWEEN 630 AND 800 PM. LOCALLY HEAVY RAINFALL... SMALL HAIL... FREQUENT LIGHTNING AND GUSTY WINDS ARE POSSIBLE WITH THE THUNDERSTORMS. LOCALLY HEAVY RAINFALL COULD ALSO LEAD TO PONDING OF WATER IN LOW-LYING AREAS LIKE UNDERPASSES AND DIPS IN ROADS AND STREETS...AS WELL AS CAUSING SOME RISES IN SMALL STREAMS AND CREEKS. RESIDENTS AND TRAVELLERS IN THE STATE TONIGHT SHOULD BE ON THE ALERT FOR THREATENING WEATHER. IF THREATENING WEATHER APPROACHES YOUR AREA...SEEK SHELTER. IF YOU ARE CAUGHT OUTSIDE IN A THUNDERSTORM DO NOT STAND UNDER A LONE TREE OR OTHER HIGH OBJECT. LIGHTNING USUALLY STRIKES THE HIGHEST OBJECT IN AN AREA. FURTHER STATEMENTS WILL BE ISSUED AS NEEDED. SMITH...2340Z
Special weather statement, Aug 9, 5:45 PM MDT, 2 hours 25 minutes before
UTZALL-100500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 545 PM MDT MON AUG 9 1993 ...STRONG THUNDERSTORMS MOVING THROUGH UTAH THIS EVENING... CONDITIONS ARE FAVORABLE FOR STRONG THUNDERSTORMS IN UTAH TONIGHT. AT 530 PM RADAR AND SATELLITE PICTURES SHOWED THE STRONGEST THUNDERSTORMS WERE IN AN AREA BETWEEN DELTA AND DUGWAY...ALSO 15 MILES SOUTHWEST OF PRICE...10 MILES SOUTH OF MILFORD...AND 10 MILES SOUTH OF BULLFROG. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. THE THUNDERSTORMS BETWEEN DELTA AND DUGWAY WILL MOVE INTO THE MORE POPULATED AREAS OF THE WASATCH FRONT BETWEEN 630 AND 800 PM. LOCALLY HEAVY RAINFALL... SMALL HAIL... FREQUENT LIGHTNING AND GUSTY WINDS ARE POSSIBLE WITH THE THUNDERSTORMS. LOCALLY HEAVY RAINFALL COULD ALSO LEAD TO PONDING OF WATER IN LOW-LYING AREAS LIKE UNDERPASSES AND DIPS IN ROADS AND STREETS...AS WELL AS CAUSING SOME RISES IN SMALL STREAMS AND CREEKS. RESIDENTS AND TRAVELLERS IN THE STATE TONIGHT SHOULD BE ON THE ALERT FOR THREATENING WEATHER. IF THREATENING WEATHER APPROACHES YOUR AREA...SEEK SHELTER. IF YOU ARE CAUGHT OUTSIDE IN A THUNDERSTORM DO NOT STAND UNDER A LONE TREE OR OTHER HIGH OBJECT. LIGHTNING USUALLY STRIKES THE HIGHEST OBJECT IN AN AREA. FURTHER STATEMENTS WILL BE ISSUED AS NEEDED. SMITH...2340Z
Special weather statement, Aug 9, 6:42 PM MDT, 1 hour 28 minutes before
UTZALL-100500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 645 PM MDT MON AUG 9 1993 ...STRONG THUNDERSTORMS MOVING THROUGH UTAH THIS EVENING... CONDITIONS ARE FAVORABLE FOR STRONG THUNDERSTORMS IN UTAH TONIGHT. AT 630 PM RADAR AND SATELLITE PICTURES SHOWED THE STRONGEST THUNDERSTORMS WERE IN AN AREA FROM WEST OF PROVO TO THE POINT OF THE MOUNTAIN IN SOUTH SALT LAKE COUNTY...ALSO JUST SOUTHWEST OF PRICE...FROM BULLFROG SOUTH TO THE ARIZONA BORDER...AND A NEW THUNDERSTORM DEVELOPING JUST SOUTH OF BRYCE CANYON NATIONAL PARK. THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. SINCE THESE THUNDERSTORMS ARE MOVING STEADILY ALONG THE RISK OF FLASH FLOODING IS MINIMIZED. HOWEVER BRIEF HEAVY RAINFALL...SMALL HAIL...AND GUSTY WINDS WILL BE POSSIBLE NEAR THUNDERSTORMS. 3/8 INCH HAIL FELL IN PARTS OF WEST VALLEY DURING THE LAST HOUR. LOCALLY HEAVY RAINFALL COULD LEAD TO PONDING OF WATER IN LOW-LYING AREAS LIKE UNDERPASSES AND DIPS IN ROADS AND STREETS...AS WELL AS CAUSING SOME RISES IN SMALL STREAMS AND CREEKS. RESIDENTS AND TRAVELLERS IN THE STATE TONIGHT SHOULD BE ON THE ALERT FOR THREATENING WEATHER. IF THREATENING WEATHER APPROACHES YOUR AREA...SEEK SHELTER. IF YOU ARE CAUGHT OUTSIDE IN A THUNDERSTORM DO NOT STAND UNDER A LONE TREE OR OTHER HIGH OBJECT. LIGHTNING USUALLY STRIKES THE HIGHEST OBJECT IN AN AREA. FURTHER STATEMENTS WILL BE ISSUED AS NEEDED. SMITH...0040Z
Special weather statement, Aug 9, 6:45 PM MDT, 1 hour 25 minutes before
UTZALL-100500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 645 PM MDT MON AUG 9 1993 ...STRONG THUNDERSTORMS MOVING THROUGH UTAH THIS EVENING... CONDITIONS ARE FAVORABLE FOR STRONG THUNDERSTORMS IN UTAH TONIGHT. AT 630 PM RADAR AND SATELLITE PICTURES SHOWED THE STRONGEST THUNDERSTORMS WERE IN AN AREA FROM WEST OF PROVO TO THE POINT OF THE MOUNTAIN IN SOUTH SALT LAKE COUNTY...ALSO JUST SOUTHWEST OF PRICE...FROM BULLFROG SOUTH TO THE ARIZONA BORDER...AND A NEW THUNDERSTORM DEVELOPING JUST SOUTH OF BRYCE CANYON NATIONAL PARK. THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. SINCE THESE THUNDERSTORMS ARE MOVING STEADILY ALONG THE RISK OF FLASH FLOODING IS MINIMIZED. HOWEVER BRIEF HEAVY RAINFALL...SMALL HAIL...AND GUSTY WINDS WILL BE POSSIBLE NEAR THUNDERSTORMS. 3/8 INCH HAIL FELL IN PARTS OF WEST VALLEY DURING THE LAST HOUR. LOCALLY HEAVY RAINFALL COULD LEAD TO PONDING OF WATER IN LOW-LYING AREAS LIKE UNDERPASSES AND DIPS IN ROADS AND STREETS...AS WELL AS CAUSING SOME RISES IN SMALL STREAMS AND CREEKS. RESIDENTS AND TRAVELLERS IN THE STATE TONIGHT SHOULD BE ON THE ALERT FOR THREATENING WEATHER. IF THREATENING WEATHER APPROACHES YOUR AREA...SEEK SHELTER. IF YOU ARE CAUGHT OUTSIDE IN A THUNDERSTORM DO NOT STAND UNDER A LONE TREE OR OTHER HIGH OBJECT. LIGHTNING USUALLY STRIKES THE HIGHEST OBJECT IN AN AREA. FURTHER STATEMENTS WILL BE ISSUED AS NEEDED. SMITH...0040Z
Special weather statement, Aug 9, 7:40 PM MDT, 30 minutes before
UTZALL-100500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 745 PM MDT MON AUG 9 1993 ...EVENING THUNDERSTORMS CONTINUE ACROSS UTAH... CONDITIONS ARE FAVORABLE FOR STRONG THUNDERSTORMS IN UTAH TONIGHT. AT 730 PM RADAR AND SATELLITE PICTURES SHOWED THE STRONGEST THUNDERSTORMS WERE NEAR PRICE...NEAR BRYCE CANYON NATIONAL PARK... NEAR OGDEN...NEAR BRIGHAM CITY...AND A NEW AREA OF THUNDERSTORM DEVELOPMENT 25 MILES SOUTHEAST OF WENDOVER. THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. WITHIN THE LAST HOUR .15 OF AN INCH FELL IN JUST 3 MINUTES IN PRICE ... .31 OF AN INCH FELL IN 10 MINUTES IN HUNTINGTON... AND .35 OF AN INCH FELL IN 30 MINUTES IN BICKNELL. THUNDERSTORMS MOVING THROUGH THE WASATCH FRONT HAVE DROPPED .75 OF AN INCH IN LAYTON SINCE 400 PM THIS AFTERNOON. THUNDERSTORMS CONTINUE TO DEVELOP AND SATELLITE PICTURES SHOW A STRONG THUNDERSTORM ABOUT TO MOVE INTO SOUTHEAST UTAH FROM ARIZONA. NO FLOODING HAS BEEN REPORTED FROM THESE STORMS BUT BRIEF HEAVY RAIN...SMALL HAIL...FREQUENT LIGHTNING...AND GUSTY WINDS CAN BE EXPECTED NEAR THUNDERSTORMS. IF THUNDERSTORMS APPROACH...SEEK SHELTER INDOORS. BEWARE OF LIGHTNING WHICH IS UTAHS BIGGEST WEATHER RELATED KILLER. FURTHER STATEMENTS WILL BE ISSUED AS NEEDED. SMITH...0140Z
Special weather statement, Aug 9, 7:45 PM MDT, 25 minutes before
UTZALL-100500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 745 PM MDT MON AUG 9 1993 ...EVENING THUNDERSTORMS CONTINUE ACROSS UTAH... CONDITIONS ARE FAVORABLE FOR STRONG THUNDERSTORMS IN UTAH TONIGHT. AT 730 PM RADAR AND SATELLITE PICTURES SHOWED THE STRONGEST THUNDERSTORMS WERE NEAR PRICE...NEAR BRYCE CANYON NATIONAL PARK... NEAR OGDEN...NEAR BRIGHAM CITY...AND A NEW AREA OF THUNDERSTORM DEVELOPMENT 25 MILES SOUTHEAST OF WENDOVER. THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MPH. WITHIN THE LAST HOUR .15 OF AN INCH FELL IN JUST 3 MINUTES IN PRICE ... .31 OF AN INCH FELL IN 10 MINUTES IN HUNTINGTON... AND .35 OF AN INCH FELL IN 30 MINUTES IN BICKNELL. THUNDERSTORMS MOVING THROUGH THE WASATCH FRONT HAVE DROPPED .75 OF AN INCH IN LAYTON SINCE 400 PM THIS AFTERNOON. THUNDERSTORMS CONTINUE TO DEVELOP AND SATELLITE PICTURES SHOW A STRONG THUNDERSTORM ABOUT TO MOVE INTO SOUTHEAST UTAH FROM ARIZONA. NO FLOODING HAS BEEN REPORTED FROM THESE STORMS BUT BRIEF HEAVY RAIN...SMALL HAIL...FREQUENT LIGHTNING...AND GUSTY WINDS CAN BE EXPECTED NEAR THUNDERSTORMS. IF THUNDERSTORMS APPROACH...SEEK SHELTER INDOORS. BEWARE OF LIGHTNING WHICH IS UTAHS BIGGEST WEATHER RELATED KILLER. FURTHER STATEMENTS WILL BE ISSUED AS NEEDED. SMITH...0140Z
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 4:40 PM MDT | Flash Flood Warning | SLC | Utah | 60 min |
| Aug 10, 4:40 PM MDT | Flash Flood Warning | SLC | Wayne | 60 min |
Nearby
Flash Flood Warnings in Utah, 1993Every flash flood warning in 1993
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.