Alert archive / Utah / Flash Flood Warnings in 2002
Flash Flood Warning 21, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Sep 12, 2002, 2:17 PM MDT for Garfield County, Utah. It was in force for 118 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 12, 2002, 2:17 PM MDT (20:17 UTC)
- Expired
- Sep 12, 2002, 4:15 PM MDT
- In force
- 118 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Counties, with a storm outline in the text
County Garfield County, UT
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 8.3 hours before the alert went out and 274 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
- 1201 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 53 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 122017 FFWSLC UTC017-122215- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SALT LAKE CITY UT 214 PM MDT THU SEP 12 2002 THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL GARFIELD COUNTY IN UTAH * UNTIL 415 PM MDT * AT 212 PM MDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN OVER SOUTH CENTRAL GARFIELD COUNTY...OR ABOUT 20 MILES SOUTHEAST OF ESCALANTE...MOVING EAST AT 25 MPH. * THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE... OVER RURAL SOUTHERN GARFIELD COUNTY AT 230 PM MDT EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES. THE HOLE- IN-THE-ROCK ROAD WILL BE THE AREA OF MAIN CONCERN. 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. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN SALT LAKE CITY. LAT...LON 3772 11138 3754 11139 3754 11093 3772 11088
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 12:23 PM MDT | Tornado Warning | SLC | Sanpete | 7 min |
| Sep 12, 1:41 PM MDT | Flash Flood Warning | SLC | Emery, Sevier | 64 min |
| Sep 12, 2:25 PM MDT | Flash Flood Warning | SLC | Kane | 2 hr |
| Sep 12, 3:08 PM MDT | Flash Flood Warning | SLC | Emery, Garfield, Kane, Wayne | 112 min |
| Sep 12, 3:28 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Kane | 47 min |
| Sep 12, 4:24 PM MDT | Tornado Warning | SLC | Carbon | 36 min |
| Sep 12, 4:24 PM MDT | Tornado Warning | SLC | Carbon | 36 min |
| Sep 12, 4:50 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 25 min |
| Sep 12, 4:52 PM MDT | Flash Flood Warning | SLC | Carbon, Emery | 113 min |
| Sep 12, 5:07 PM MDT | Flash Flood Warning | SLC | Carbon, Emery | 98 min |
Nearby
Flash Flood Warnings in Utah, 2002Every flash flood warning in 2002
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.