Alert archive / Wyoming / Flash Flood Warnings in 1994
Flash Flood Warning 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at Oct 16, 1994, 11:35 PM MDT for Johnson County, Wyoming. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Oct 16, 1994, 11:35 PM MDT (05:35 UTC)
- Expired
- Oct 17, 1994, 11:30 AM MDT
- In force
- 12 hr
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Johnson County, WY
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 5.6 hours before the alert went out and 182 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 184 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCYS 170546 FFWSHR WYC019-171730- BULLETIN - EBS ACTIVATION REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE SHERIDAN WY ISSUED BY CHEYENNE WY 1135 PM MDT SUN OCT 16 1994 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING EFFECTIVE UNTIL 1130 AM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL WYOMING ...SOUTHEASTERN JOHNSON COUNTY INCLUDING THE CITY OF KAYCEE... AT 1125 PM...FLOODING WAS OBSERVED ALONG THE MIDDLE FORK OF THE POWDER RIVER IN AND WEST OF KAYCEE. WATER WAS OVER A PORTION OF A ROAD IN TOWN AND THE CITY PARK WAS PARTIALLY FLOODED. THE HIGH WATER LEVEL IN THE RIVERS AND FLOODING IS DUE TO A COMBINATION OF MOIST GROUND AND THE RECENT RAINFALL. IN THE PAST 24 HOURS SOUTHEAST JOHNSON COUNTY...INCLUDING KAYCEE HAS RECEIVED UP TO 3 INCHES OF RAIN. A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IF YOU LIVE NEAR THE MIDDLE FORK OF THE POWDER RIVER OR ITS TRIBUTARIES...BE PREPARED TO MOVE AWAY FROM TRHE RIVERS. THE RAIN OR SNOW WILL PERSIST THROUGH MONDAY...WITH THE HIGH WATER LEVELS AND FLOODING CONTINUING THROUGH THE MORNING HOURS. WEILAND
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.
In the hours before
Special weather statement, Oct 16, 9:15 PM MDT, 2 hours 20 minutes before
WYZ050-052-171000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 915 PM MDT SUN OCT 16 1994 ...WINTER STORM WARNING CONTINUES FOR THE BIG HORN MOUNTAINS TONIGHT AND MONDAY... SNOW CONTINUED TO FALL IN THE BIG HORN MOUNTAINS TONIGHT AND WAS HEAVY AT TIMES. IN ADDITION...NORTH TO NORTHEAST WINDS WERE COMBINING WITH THE SNOWFALL TO PRODUCE NEAR WHITE-OUT CONDITIONS AT TIMES AROUND BURGESS JUNCTION. SNOW AND STRONG WINDS ARE EXPECTED TO CONTINUE IN THE BIG HORN MOUNTAINS TONIGHT AND MONDAY AS A STRONG LOW PRESSURE SYSTEM MOVES SLOWLY THROUGH THE ROCKY MOUNTAIN REGION. ADDITIONAL SNOWFALL BY MONDAY AFTERNOON IS EXPECTED TO RANGE FROM 8 TO 14 INCHES. BLOWING SNOW WILL CAUSE VISIBILITY NEAR ZERO AT TIMES AND SUBSTANTIAL DRIFTING IS ALSO EXPECTED. PEOPLE SHOULD AVOID TRAVELING AND OTHER ACTIVITIES IN THE BIG HORN MOUNTAINS TONIGHT AND MONDAY. IF YOU MUST VENTURE OUT BE SURE TO BRING EXTRA FOOD AND WARM CLOTHING IN THE EVENT YOU BECOME STRANDED. WCJIN-WYNW-WYNE JMH
Special weather statement, Oct 16, 9:19 PM MDT, 2 hours 16 minutes before
WYZ050-052-171000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 915 PM MDT SUN OCT 16 1994 ...WINTER STORM WARNING CONTINUES FOR THE BIG HORN MOUNTAINS TONIGHT AND MONDAY... SNOW CONTINUED TO FALL IN THE BIG HORN MOUNTAINS TONIGHT AND WAS HEAVY AT TIMES. IN ADDITION...NORTH TO NORTHEAST WINDS WERE COMBINING WITH THE SNOWFALL TO PRODUCE NEAR WHITE-OUT CONDITIONS AT TIMES AROUND BURGESS JUNCTION. SNOW AND STRONG WINDS ARE EXPECTED TO CONTINUE IN THE BIG HORN MOUNTAINS TONIGHT AND MONDAY AS A STRONG LOW PRESSURE SYSTEM MOVES SLOWLY THROUGH THE ROCKY MOUNTAIN REGION. ADDITIONAL SNOWFALL BY MONDAY AFTERNOON IS EXPECTED TO RANGE FROM 8 TO 14 INCHES. BLOWING SNOW WILL CAUSE VISIBILITY NEAR ZERO AT TIMES AND SUBSTANTIAL DRIFTING IS ALSO EXPECTED. PEOPLE SHOULD AVOID TRAVELING AND OTHER ACTIVITIES IN THE BIG HORN MOUNTAINS TONIGHT AND MONDAY. IF YOU MUST VENTURE OUT BE SURE TO BRING EXTRA FOOD AND WARM CLOTHING IN THE EVENT YOU BECOME STRANDED. WCJIN-WYNW-WYNE JMH
Nearby
Flash Flood Warnings in Wyoming, 1994Every flash flood warning in 1994
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.