Alert archive / Wyoming / Flash Flood Warnings in 2003
Flash Flood Warning 3, NWS Riverton, WY
NWS Riverton, WY issued this flash flood warning at Jun 16, 2003, 3:53 PM MDT for Fremont County, Natrona County, Wyoming. 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
- Jun 16, 2003, 3:53 PM MDT (21:53 UTC)
- Expired
- Jun 16, 2003, 7:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Riverton, WY
- Area
- Counties, with a storm outline in the text
Counties Fremont County, WY, Natrona County, WY
The radar
The Riverton/Lander radar (KRIW), 88 km from the middle of the area, began a volume at 21:57 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
Riverton, WY (KRIW), launched 12:00Z, 9.9 hours before the alert went out and 82 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
- 14 J/kg
- Mixed-layer CIN
- -317 J/kg
- Mixed-layer LCL
- 1479 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 143 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 KRIW 162157 FFWRIW WYC013-025-170100- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE RIVERTON WY 353 PM MDT MON JUN 16 2003 THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN FREMONT COUNTY IN CENTRAL WYOMING NORTHWESTERN NATRONA COUNTY IN CENTRAL WYOMING * UNTIL 700 PM MDT * AT 353 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN OVER EXTREME NORTHEAST FREMONT COUNTY AND NORTHWEST NATRONA COUNTY. RADAR IS ESTIMATING RAINFALL RATES EXCEEDING AN INCH AN HOUR. * STRONG THUNDERSTORMS WITH HEAVY RAINFALL IS EXPECTED TO CONTINUE ACROSS THE AREA THROUGH AT LEAST 5 PM. RAINFALL TOTALS COULD EXCEED 3 INCHES IN SOME AREAS OF EXTREME NORTHEAST FREMONT AND NORTHWEST NATRONA COUNTIES. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES...AS WELL AS FARMLAND ALONG THE BANKS OF STREAMS. REPORT FLASH FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4346 10776 4336 10775 4337 10715 4349 10712 $$ FRIEDERS
3 follow-up statements
000 WGUS75 KRIW 162304 FFSRIW WYC013-025-170100- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 505 PM MDT MON JUN 16 2003 ...A FLASH FLOOD WARNING CONTINUES FOR EXTREME NORTHEAST FREMONT AND NORTHWESTERN NATRONA COUNTIES UNTIL 700 PM MDT... AT 450 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS AND VERY HEAVY RAINFALL ACROSS THE WARNED AREA. THE HEAVIEST RAINFALL ESTIMATES WERE LOCATED FROM 5 MILES NORTH OF LYSITE TO 15 MILES NORTH OF ARMINTO. RAINFALL AMOUNTS OF 3 TO 4 INCHES WERE COMMON. OTHER STRONG THUNDERSTORMS WERE CONTINUING TO DEVELOP ACROSS THE AFFECTED AREA. AREAS OF GREATEST CONCERN ARE ALONG SMALL STREAMS AND CREEKS IN THE AREA....ESPECIALLY THE BADWATER CREEK AREA. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES...AS WELL AS FARMLAND ALONG THE BANKS OF STREAMS. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RIVERTON. LAT...LON 4345 10779 4335 10765 4334 10709 4348 10711 $$ FRIEDERS
000 WGUS75 KRIW 162336 FFSRIW WYC013-025-170100- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 535 PM MDT MON JUN 16 2003 ...A FLASH FLOOD WARNING CONTINUES FOR NORTHEAST FREMONT AND NORTHWESTERN NATRONA COUNTIES UNTIL 7 PM MDT... AT 530 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUING ACROSS THE WARNED AREA. THE HEAVIEST RAINFALL HAS SHIFTED SOUTH...CLOSER TO THE HIGHWAY 20/26 AREA FROM MONETA TO WALTMAN. RAINFALL RATES WILL LIKELY EXCEED AN INCH AN HOUR IN SOME AREAS. BESIDES THIS AREA...LOCATIONS NORTH OF HIGHWAY 20/26...IN THE LYSITE AREA ARE ALSO STILL UNDER A THREAT FOR FLASH FLOODING. EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES...AS WELL AS FARMLAND ALONG THE BANKS OF STREAMS. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RIVERTON. LAT...LON 4346 10777 4299 10768 4299 10714 4349 10700 $$ FRIEDERS
000 WGUS75 KRIW 170050 FFSRIW WYC013-170115- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 650 PM MDT MON JUN 16 2003 ...THE FLASH FLOOD WARNING FOR NORTHEAST FREMONT COUNTY WILL BE ALLOWED TO EXPIRE AT 7 PM... AT 650 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE HEAVY RAINFALL AND FLOODING HAS SUBSIDED ACROSS THE WARNED AREA. THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE. AT 550 PM...FLOODING OF STREAMS AND CREEKS WERE REPORTED 10 MILES NORTH OF LYSITE. THE STREAMS WERE NOW REPORTED BACK WITHIN THEIR BANKS AND CONTINUING TO FALL. $$ FRIEDERS
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 3:19 PM MDT | Severe Thunderstorm Warning | RIW | Fremont | 41 min |
| Jun 16, 3:39 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Hot Springs, Natrona, Washakie | 36 min |
| Jun 16, 4:06 PM MDT | Flash Flood Warning | RIW | Washakie | 3 hr |
| Jun 16, 4:11 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Hot Springs | 49 min |
| Jun 16, 4:37 PM MDT | Flash Flood Warning | RIW | Hot Springs | 2 hr |
| Jun 16, 4:37 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Natrona | 38 min |
| Jun 16, 4:54 PM MDT | Tornado Warning | RIW | Fremont, Natrona | 26 min |
| Jun 16, 5:20 PM MDT | Severe Thunderstorm Warning | RIW | Fremont, Natrona | 40 min |
| Jun 16, 5:57 PM MDT | Severe Thunderstorm Warning | RIW | Natrona | 48 min |
Nearby
Flash Flood Warnings in Wyoming, 2003Every flash flood warning in 2003
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.