Alert archive / Utah / Flash Flood Warnings in 2007
Flash Flood Warning 21, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Aug 3, 2007, 1:46 PM MDT for Garfield County, Wayne County, Utah. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 3, 2007, 1:46 PM MDT (19:46 UTC)
- Expired
- Aug 3, 2007, 4:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
Counties Garfield County, UT, Wayne County, UT
The radar
The Cedar City radar (KICX), 158 km from the middle of the area, began a volume at 19:48 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 7.8 hours before the alert went out and 260 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
- 1727 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KSLC 031948 FFWSLC UTC017-055-032245- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 146 PM MDT FRI AUG 3 2007 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTH CENTRAL GARFIELD COUNTY IN UTAH... CENTRAL WAYNE COUNTY IN UTAH... * UNTIL 445 PM MDT * AT 142 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED INTENSE RAINFALL OVER THE HEADWATER AREAS OF CAPITOL GORGE OF CAPITOL REEF NATIONAL PARK. THE INTENSE RAINFALL IS EXPECTED TO CREATE FLASH FLOODING IN THE CAPITOL GORGE WASH. THIS WASH IS A POPULAR HIKE IN CAPITOL REEF. IF YOU PLAN ON HIKING OR DRIVING IN THIS AREA...PLEASE USE CAUTION TO ENSURE YOUR SAFETY. 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. LAT...LON 3806 11125 3826 11106 3830 11107 3831 11140 $$ MCINERNEY
1 follow-up statement
000 WGUS75 KSLC 032212 FFSSLC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 404 PM MDT FRI AUG 3 2007 UTC017-055-032245- GARFIELD UT-WAYNE UT- 404 PM MDT FRI AUG 3 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM MDT FOR CENTRAL WAYNE AND NORTH CENTRAL GARFIELD COUNTIES... AT 400 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORM ACTIVITY MOVING THROUGH CAPITOL REEF NATIONAL PARK. THE CAPITOL GORGE ROAD HAS BEEN CLOSED DUE TO MINOR FLASH FLOODING. CONTINUED THUNDERSTORM ACTIVITY IS FORMING ALL THROUGH THE WARNING AREA AS HEATING OF THE AFTERNOON HOURS INCREASES. PERSONS HIKING OR DRIVING IN CAPITOL REEF NATIONAL PARK AND AREAS TO THE EAST ARE ADVISED TO USE CAUTION. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. LAT...LON 3806 11125 3826 11106 3830 11107 3831 11140 $$ MCINERNEY
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 6:24 PM MDT | Severe Thunderstorm Warning | SLC | Wayne | 51 min |
| Aug 3, 3:45 PM MDT | Flash Flood Watch | SLC | 8 hr | |
| Aug 3, 4:33 PM MDT | Flash Flood Warning | SLC | Garfield | 4 hr |
| Aug 3, 5:09 PM MDT | Flash Flood Warning | SLC | Garfield, Kane | 6 hr |
| Aug 3, 5:42 PM MDT | Flash Flood Warning | SLC | Garfield, Kane | 6 hr |
Nearby
Flash Flood Warnings in Utah, 2007Every flash flood warning in 2007
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; radar from the NEXRAD Level II archive.