Alert archive / Utah / Flash Flood Warnings in 1993
Flash Flood Warning 7, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Sep 5, 1993, 5:45 PM MDT for Wayne County, Utah. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Sep 5, 1993, 5:45 PM MDT (23:45 UTC)
- Expired
- Sep 5, 1993, 7:45 PM MDT
- In force
- 2 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
County Wayne County, UT
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 11.8 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1966 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 360 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 052350 FFWSLC UTC055-060145- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 545 PM MDT SUN SEP 5 1993 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 745 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL UTAH ...WESTERN WAYNE COUNTY AT 540 PM MDT...CAPITOL REEF NATIONAL PARK SERVICE REPORTS HEAVY RAIN FROM THUNDERSTORMS HAS CAUSED FLOODING IN SEVERAL OF THE DRAINAGES WITHIN CAPITOL REEF NATIONAL PARK. ALSO...A SPOTTER AT FREMONT...20 MILES NORTHWEST OF CAPITOL REEF NATIONAL PARK REPORTED HEAVY RAIN THAT WAS PONDING IN LAWNS AND FLOWING DOWN THE STREETS. THE THUNDERSTORMS PRODUCING THE HEAVY RAINS OVER WESTERN WAYNE COUNTY WAS MOVING EAST AT 15 MPH. TOWNS THAT MAY EXPERIENCE FLOODING INCLUDE TORREY...GROVER... CAINEVEILLE AS WELL AS CAPITOL REEF NATIONAL PARK. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
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, Sep 5, 2:00 PM MDT, 3 hours 45 minutes before
UTZALL-070000-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
200 PM MDT SUN SEP 5 1993
...THUNDERSTORMS BEGINNING TO FIRE...
THUNDERSTORMS HAVE BEGUN TO FIRE AS THE AFTERNOON INSTABILITY ADDS
ANOTHER INGREDIENT TO THE UNSTABLE AIRMASS OVER MUCH OF NORTHERN AND
EASTERN UTAH.
THE MOST CONCENTRATED ACTIVITY AT THIS TIME IS OVER THE UINTA
MOUNTAINS BUT SHOULD BECOME MORE WIDESPREAD IN THE NORTH AND EASTERN
PORTIONS OF UTAH LATER THIS AFTERNOON AND TONIGHT. SOME OF THE
THUNDERSTORMS WILL CONTAIN SOME MODERATE AMOUNTS OF RAIN AND SMALL
HAIL.
DANGEROUS LIGHTNING WILL BE ASSOCIATED WITH THE THUNDERSTORMS. JUST
YESTERDAY AN 18 YEAR OLD MALE WAS STRUCK AND KILLED BY LIGHTNING AS
HE WAS DEER HUNTING NORTHEAST OF BLANDING.
DON'T BE A HUMAN LIGHTNING ROD. SEEK PROPER SHELTER IF LIGHTNING/
THUNDER ARE IN THE AREA. A BUILDING OR VEHICLE IS A SAFE PLACE.
NEVER SEEK SHELTER UNDER A LONE TREE. BE "LIGHTNING SMART" AND ENJOY
THE OUTDOORS ON THIS LAST BIG HOLIDAY WEEKEND.
FURTHER STATEMENTS WILL BE ISSUED AS NEEDED.
WJA/KBB 2001Z...Special weather statement, Sep 5, 3:00 PM MDT, 2 hours 45 minutes before
UTZALL-060000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 300 PM MDT SUN SEP 5 1993 ...THUNDERSTORMS INCREASING THROUGH EASTERN UTAH... THUNDERSTORMS WERE ON THE INCREASE THROUGH THE MOUNTAINS OF EASTERN UTAH THIS AFTERNOON. MOST OF THE STORMS EXTEND FROM CENTRAL UTAH THROUGH THE BOOK CLIFFS AND INTO THE UINTA MOUNTAINS OF NORTHEAST UTAH. THE AREAL COVERAGE OF THE THUNDERSTORMS WILL INCREASE THE REST OF THIS AFTERNOON. THE MAIN WEATHER HAZARD TO LOOK FOR WITH THESE STORMS WILL BE STRONG GUSTY WINDS AND CLOUD-TO-GROUND LIGHTNING. IF OUTDOOR ACTIVITIES ARE IN YOUR PLANS FOR THIS HOLIDAY WEEKEND REMEMBER A FEW SIMPLE LIGHTNING SAFETY RULES. FIRST...MOVE AWAY FROM RIDGES OR OPEN AREAS WHERE YOU STAND OUT AND SECOND...NEVER MOVE UNDER A LONE TREE OR SMALL GROUP OF TREES ON EXPOSED RIDGES TO SEEK SHELTER. MCC...2100Z.
Special weather statement, Sep 5, 3:06 PM MDT, 2 hours 39 minutes before
UTZALL-060000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 300 PM MDT SUN SEP 5 1993 ...THUNDERSTORMS INCREASING THROUGH EASTERN UTAH... THUNDERSTORMS WERE ON THE INCREASE THROUGH THE MOUNTAINS OF EASTERN UTAH THIS AFTERNOON. MOST OF THE STORMS EXTEND FROM CENTRAL UTAH THROUGH THE BOOK CLIFFS AND INTO THE UINTA MOUNTAINS OF NORTHEAST UTAH. THE AREAL COVERAGE OF THE THUNDERSTORMS WILL INCREASE THE REST OF THIS AFTERNOON. THE MAIN WEATHER HAZARD TO LOOK FOR WITH THESE STORMS WILL BE STRONG GUSTY WINDS AND CLOUD-TO-GROUND LIGHTNING. IF OUTDOOR ACTIVITIES ARE IN YOUR PLANS FOR THIS HOLIDAY WEEKEND REMEMBER A FEW SIMPLE LIGHTNING SAFETY RULES. FIRST...MOVE AWAYB FROM RIDGES OR OPEN AREAS WHERE YOU STAND OUT AND SECOND...NEVER MOVE UNDER A LONE TREE OR SMALL GROUP OF TREES ON EXPOSED RIDGES TO SEEK SHELTER. MCC...2100Z.
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.