Flash Flood Warning 4, NWS Riverton, WY

Issued

Aug 29, 2002, 2:51 PM MDT (20:51 UTC)

Expired

Aug 29, 2002, 5:45 PM MDT

In force

3 hr

Issued by

NWS Riverton, WY

Area

Whole counties

County Johnson County, WY

The Riverton/Lander radar (KRIW), 187 km from the middle of the area, began a volume at 20:53 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.

000 
WGUS55 KRIW 292051
FFWRIW
WYC019-292345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
243 PM MDT THU AUG 29 2002

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL JOHNSON COUNTY IN NORTH CENTRAL WYOMING

* UNTIL 545 PM MDT

* AT 243 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN 7 MILES SOUTHWEST OF KAYCEE...OR ABOUT 48 MILES
  SOUTH OF BUFFALO. THE ASSOCIATED STORM WAS MOVING NORTH AT 10 MPH.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF
STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND
FARMLANDS ALONG THE BANKS OF STREAMS AND OTHER LOW LYING AREAS ARE
SUBJECT TO FLASH FLOODING.

MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER ATTEMPT TO CROSS
BRIDGES OR LOW LYING AREAS IF WATER COVERS THE ROAD.

IF YOUR VEHICLE STALLS IN HIGH WATER ABANDON IT IMMEDIATELY AND CLIMB
TO HIGHER GROUND. DO NOT DELAY...RAPIDLY RISING WATER CAN SWEEP YOU
AND THE VEHICLE AWAY WITH NO WARNING.

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.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
RIVERTON.

A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
REMAIN CALM BUT BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS.
$$
LAT...LON 4357 10693 4348 10674 4381 10646 4393 10682

LIPSON

WCJIN-WYNE

WGUS75 KRIW 292243
FFSRIW
WYC019-300000-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
443 PM MDT THU AUG 29 2002

...THE FLASH FLOOD WARNING HAS BEEN CANCELED FOR SOUTH
CENTRAL JOHNSON COUNTY...

REMAINING SHOWERS AND THUNDERSTORMS OVER EAST CENTRAL WYOMING HAD
WEAKENED AND GENERALLY WERE PRODUCING RAINFALL AMOUNTS OF AROUND
0.10 INCHES OR LESS.  NO FLASH FLOODING IS OCCURRING OR IMMINENT IN
SOUTHERN JOHNSON COUNTY AND THEREFORE THE FLASH FLOOD WARNING HAS
BEEN CANCELED.  ANOTHER LINE OF SHOWERS AND THUNDERSTORMS WILL
MOVE THROUGH LATER THIS EVENING BETWEEN 8 PM AND 10 PM.  WIDESPREAD
RAIN AMOUNTS WITH THESE STORMS SHOULD REMAIN LESS THAN 0.25 INCHES...
BUT ISOLATED STORMS COULD PRODUCE AS MUCH AS 1.5 INCHES.  THESE
AMOUNTS WILL NOT POSE MAJOR FLOODING PROBLEMS TO THE AREA.  STAY
TUNED TO LOCAL TELEVISION OR RADIO SHOULD WEATHER CONDITIONS
CHANGE. REPORT ANY FLOODING IMMEDIATELY TO LOCAL LAW ENFORCEMENT
OFFICIALS.

$$

WCJIN-WYNE
AEM

Flash Flood Warnings in Wyoming, 2002Every flash flood warning in 2002

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.