Alert archive / Wyoming / Flash Flood Warnings in 2006
Flash Flood Warning 2, NWS Riverton, WY
NWS Riverton, WY issued this flash flood warning at Jul 5, 2006, 1:54 PM MDT for Johnson County, Wyoming. It was in force for 2 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
- Jul 5, 2006, 1:54 PM MDT (19:54 UTC)
- Expired
- Jul 5, 2006, 4:00 PM MDT
- In force
- 2 hr
- Issued by
- NWS Riverton, WY
- Area
- Counties, with a storm outline in the text
County Johnson County, WY
The radar
The Riverton/Lander radar (KRIW), 181 km from the middle of the area, began a volume at 19:53 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 7.9 hours before the alert went out and 176 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
- 111 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 1766 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 17 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 051958 FFWRIW WYC019-052200- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE RIVERTON WY 154 PM MDT WED JUL 5 2006 THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHWESTERN JOHNSON COUNTY IN NORTH CENTRAL WYOMING... * UNTIL 400 PM MDT * AT 147 PM MDT...DOPPLER RADAR INDICATED A STATIONARY STORM 12 MILES WEST OF BUFFALO...PRODUCING VERY HEAVY RAIN. TRAINED WEATHER SPOTTERS IN THE AREA REPORTED SOUTH FORK OF CLEAR CREEK RISING FROM VERY HEAVY RAIN OVER THE WARNED AREA. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO U.S. HWY 16 MILE MARKER 80...AND ALL FORKS OF CLEAR CREEK ABOVE BUFFALO. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 ARE POSSIBLE IN THE WARNED AREA. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNED 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. REPORT FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4420 10707 4420 10682 4438 10682 4438 10707 $$ T. BAKER
3 follow-up statements
000 WGUS75 KRIW 052035 FFSRIW FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 232 PM MDT WED JUL 5 2006 WYC019-052200- JOHNSON WY- 232 PM MDT WED JUL 5 2006 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN JOHNSON COUNTY UNTIL 400 PM MDT... AT 228 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER THE WARNED AREA. THIS STORM WAS LOCATED 12 MILES WEST OF BUFFALO ALONG HIGHWAY 16. DOPPLER RADAR HAS ESTIMATED 2.5 TO 3 INCHES OF RAIN HAS ALREADY FALLEN...WITH ANOTHER 1 TO 2 INCHES OF RAINFALL LIKELY. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO U.S. HWY 16 MILE MARKER 80...AS WELL AS SEVERAL CAMPGROUNDS ALONG CLEAR CREEK. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES...AS WELL AS LOW LYING AREAS ALONG THE BANKS OF STREAMS. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. REPORT FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4420 10707 4420 10682 4438 10682 4438 10707 $$ T. BAKER
000 WGUS75 KRIW 052106 FFSRIW FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 303 PM MDT WED JUL 5 2006 WYC019-052200- JOHNSON WY- 303 PM MDT WED JUL 5 2006 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHWESTERN JOHNSON COUNTY UNTIL 400 PM MDT... AT 259 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE THUNDERSTORM THAT PRODUCED THE VERY HEAVY RAIN AND HAIL HAD DISSIPATED. HOWEVER...RUNOFF WILL CONTINUE TO CAUSE FLASH FLOODING OVER THE WARNED AREA. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO U.S. HWY 16 MILE MARKER 80...AS WELL AS SEVERAL CAMPGROUNDS ALONG CLEAR CREEK. 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. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. REPORT FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4420 10707 4420 10682 4438 10682 4438 10707 TWB $$
000 WGUS75 KRIW 052202 FFSRIW FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 401 PM MDT WED JUL 5 2006 WYC019-052211- JOHNSON WY- 401 PM MDT WED JUL 5 2006 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR NORTHWESTERN JOHNSON COUNTY... THE HEAVY RAINFALL HAS ENDED AND FLOODING IS NO LONGER ANTICIPATED IN THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. CLEAR CREEK WILL GRADUALLY SUBSIDE OVER THE EVENING HOURS. IT WILL LIKELY RISE SOME AROUND BUFFALO...BUT IS EXPECTED TO STAY IN ITS BANKS. REPORT FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE IN RIVERTON AT 1-800-211-1448. LAT...LON 4420 10707 4420 10682 4438 10682 4438 10707 $$ T. BAKER
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
Hazardous weather outlook, Jul 5, 5:00 AM MDT, 8 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 500 AM MDT WED JUL 5 2006 WYZ001>020-022>030-061200- ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST- BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS- EAST SWEETWATER COUNTY-FLAMING GORGE- GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS- NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN- NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS- ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES- SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN- SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY- TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- YELLOWSTONE NATIONAL PARK- 500 AM MDT WED JUL 5 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT AN AREA OF LOW PRESSURE OVER NORTHERN NEVADA AND WESTERN UTAH WILL MOVE ACROSS WESTERN WYOMING TODAY THROUGH TONIGHT. SCATTERED THUNDERSTORMS WILL INITIALLY DEVELOP OVER THE SOUTHWEST THIS MORNING...SPREADING NORTH ACROSS THE REMAINDER OF THE WEST THIS AFTERNOON AND EVENING. ISOLATED THUNDERSTORM ACTIVITY IS EXPECTED EAST OF THE DIVIDE. VERY HEAVY RAIN...SMALL HAIL AND CLOUD TO GROUND LIGHTNING WILL BE THE MAIN THREAT TODAY THROUGH TONIGHT. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORM CHANCES CONTINUE ACROSS THE STATE THURSDAY THROUGH MONDAY. SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY HAIL...WIND GUSTS OVER 50 MPH OR FLOODING THIS AFTERNOON AND TONIGHT. REPORTS CAN BE PROVIDED TO THE NATIONAL WEATHER SERVICE IN RIVERTON BY CALLING 1-800-211- 1448. THANK YOU. TEAM RIW
Nearby
Flash Flood Warnings in Wyoming, 2006Every flash flood warning in 2006
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.