Alert archive / Utah / Flash Flood Warnings in 2002
Flash Flood Warning 39, NWS Grand Junction, CO
NWS Grand Junction, CO issued this flash flood warning at Aug 29, 2002, 5:15 PM MDT for San Juan 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 outline as issued.
The facts
- Issued
- Aug 29, 2002, 5:15 PM MDT (23:15 UTC)
- Expired
- Aug 29, 2002, 8:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Grand Junction, CO
- Area
- Counties, with a storm outline in the text
County San Juan County, UT
The nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 11.3 hours before the alert went out and 245 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
- 203 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 2205 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 82 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 KGJT 292315
FFWGJT
UTC037-300200-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
514 PM MDT THU AUG 29 2002
THE NATIONAL WEATHER SERVICE IN GRAND JUNCTION HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN SAN JUAN COUNTY IN SOUTHEAST UTAH
THIS INCLUDES THE CITIES OF...MONTEZUMA CREEK...MEXICAN HAT
* UNTIL 800 PM MDT
* AROUND 500 PM MDT...THE SAN JUAN COUNTY SHERIFF REPORTED FLASH
FLOODING ON HIGHWAY 163 NEAR GOULDING UTAH.
* AN AREA OF THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL ALSO
AFFECT ANETH
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
GRAND JUNCTION.
LAT...LON 3702 11083 3698 10908 3760 10908 3758 10975
3735 11032
MCThe office that day
Everything else NWS Grand Junction, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 1:32 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 43 min |
| Aug 29, 2:11 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 49 min |
| Aug 29, 2:56 PM MDT | Severe Thunderstorm Warning | GJT | Uintah | 49 min |
| Aug 29, 3:02 PM MDT | Severe Thunderstorm Warning | GJT | Grand | 43 min |
| Aug 29, 3:46 PM MDT | Severe Thunderstorm Warning | GJT | Grand | 44 min |
| Aug 29, 5:31 PM MDT | Severe Thunderstorm Warning | GJT | San Juan | 44 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.