Alert archive / Utah / Flash Flood Warnings in 2002
Flash Flood Warning 20, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Sep 12, 2002, 1:41 PM MDT for Emery County, Sevier County, Utah. It was in force for 64 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, 1:41 PM MDT (19:41 UTC)
- Expired
- Sep 12, 2002, 2:45 PM MDT
- In force
- 64 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Counties, with a storm outline in the text
Counties Emery County, UT, Sevier County, UT
The nearest sounding before it
Salt Lake City I, UT (KSLC), launched 12:00Z, 7.7 hours before the alert went out and 212 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
- 12 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1101 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -16 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
WGUS55 KSLC 121941
FFWSLC
UTC015-041-122045-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
141 PM MDT THU SEP 12 2002
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WEST CENTRAL EMERY COUNTY IN UTAH
NORTHEASTERN SEVIER COUNTY IN UTAH
* UNTIL 245 PM MDT
* AT 135 PM MDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
RAIN NEAR EMERY. FLOODING IS REPORTED IN EMERY.
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 3898 11133 3881 11153 3868 11131 3900 11091
3916 11117The 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, 2:17 PM MDT | Flash Flood Warning | SLC | Garfield | 118 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.