Alert archive / Wyoming / Flash Flood Warnings in 1995

Flash Flood Warning 2, NWS Cheyenne, WY

June 7, 1995Goshen County, Wyoming

NWS Cheyenne, WY issued this flash flood warning at Jun 7, 1995, 10:33 PM MDT for Goshen County, Wyoming. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jun 7, 1995, 10:33 PM MDT (04:33 UTC)
Expired
Jun 8, 1995, 3:00 AM MDT
In force
4 hr
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Goshen County, WY

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 4.6 hours before the alert went out and 251 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.

Skew-T log-pSkew-T log-p diagram, Rapid City, SD at 00:00Z on 1995-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 00:00Z on 1995-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -77 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
546 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
-77 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCYS 080434
FFWCYS
WYC015-080900-

BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
1033 PM MDT WED JUN 7 1995

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A FLOOD WARNING
EFFECTIVE UNTIL 300 AM FOR PEOPLE IN THE FOLOWING LOCATIONS...

IN SOUTHEAST WYOMING

   ...SOUTHERN GOSHEN COUNTY...

THIS WARNING IS FOR BEAR CREEK IN SOUTHWEST AND SOUTH CENTRAL GOSHEN
COUNTY.

FLOODING OF BEAR CREEK HAS OCCURRED IN PLATTE COUNTY THIS EVENING DUE
TO HEAVY RAINFALL IN WEST CENTRAL PLATTE COUNTY.  FLOODING OF BEAR
CREEK WAS REPORTED LATE THIS EVENING IN LITTLE BEAR VILLAGE BY
CHUGWATER.  AS OF 1030 PM...BEAR CREEK HAS RECEDED OVER MUCH OF PLATTE
COUNTY...BUT REMAINS HIGH.  THE FLOODING WILL SPREAD EAST TO THE
LAGRANGE AREA BY 1115 PM.  THE WATER IN BEAR CREEK WILL RECEDE OVER
SOUTHERN GOSHEN COUNTY BY 300 AM THURSDAY MORMING.

PEOPLE LIVING ALONG OR NEAR BEAR CREEK IN SOUTHERN GOSHEN COUNTY
SHOULD BE PREPARED FOR TfHE POSSIBLE FLOODING.  BE PREPARED TO MOVE TO
HIGHER GROUND IF FLOODING OCCURS.

WCJIN-WYSE
WEILAND

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 6:43 PM MDTSevere Thunderstorm WarningCYSPlatte47 min
Jun 7, 7:37 PM MDTSevere Thunderstorm WarningCYSGoshen, Niobrara, Platte53 min

Nearby

Flash Flood Warnings in Wyoming, 1995Every flash flood warning in 1995

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.