Alert archive / Wyoming / Flash Flood Warnings in 1995

Flash Flood Warning 3, NWS Riverton, WY

July 14, 1995Fremont County, Wyoming

NWS Riverton, WY issued this flash flood warning at Jul 14, 1995, 3:27 AM MDT for Fremont County, Wyoming. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Jul 14, 1995, 3:27 AM MDT (09:27 UTC)
Expired
Jul 14, 1995, 1:30 PM MDT
In force
10 hr
Issued by
NWS Riverton, WY
Area
Whole counties

County Fremont County, WY

The nearest sounding before it

Riverton, WY (KRIW), launched 00:00Z, 9.5 hours before the alert went out and 19 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, Riverton, WY at 00:00Z on 1995-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 00:00Z on 1995-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3142 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
20 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 KLND 140931
FFWLND
WYC013-141930-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE LANDER WY
327 AM MDT FRI JUL 14 1995
 
THE NATIONAL WEATHER SERVICE IN LANDER WY HAS ISSUED A
FLOOD WARNING
EFFECTIVE UNTIL  130 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL WYOMING
 
   ...FREMONT COUNTY
 
THE WIND RIVER NEAR RIVERTON IS FLOODING. AT 1 AM THE RIVER HAD RISEN TO
9.5 FEET...FLOOD STAGE IS 9.0 FEET. THE WIND RIVER WAS ALSO ABOVE FLOOD
STAGE NEAR CROWHEART...SOME 50 MILES UPSTREAM FROM RIVERTON. AT
CROWHEART...THE STAGE WAS 10.3 FEET. FLOOD STAGE IS 10.0 FEET. THE WIND
RIVER FROM CROWHEART TO RIVERTON WILL REMAIN ABOVE FLOOD STAGE THROUGH
THIS MORNING. THE WYOMING DEPARTMENT OF TRANSPORTATION REPORTS WATER
OVER HIGHWAY 789 NEAR THE ETHETE TURNOFF...JUST SOUTH OF THE WIND RIVER
BRIDGE.
 
PERSONS ALONG THE WIND RIVER SHOULD BE PREPARED TO MOVE TO HIGHER
GROUND. DO NOT ATTEMPT TO DRIVE ACROSS FLOODED> ROADWAYS.
 
WCJIN-WYNW
BUSH

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, Jul 13, 10:04 PM MDT, 5 hours 23 minutes before
WYZ054-055-056-140500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CASPER WY
1005 PM MDT THU JUL 13 1995

...STRONG THUNDERSTORMS WERE MOVING THROUGH NORTHEAST WYOMING...

AT 1000 PM MDT...RADAR INDICATED STRONG THUNDERSTORMS OVER EXTREME
NORTHEAST CAMPBELL COUNTY. THE STRONGEST STORM WAS LOCATED NEAR THE
COMMUNITY OF ROCKYPOINT 45 MILES NORTHEAST OF GILLETTE. ALSO...
STRONG THUNDERSTORMS IN JOHNSON COUNTY ARE EXPECTED TO MOVE INTO
NORTHWEST CAMPBELL COUNTY IN THE NEXT HALF HOUR. ALL OF THE STORMS
WERE MOVING TO THE EAST-NORTHEAST AT 25 MPH.

STRONG WIND GUSTS...SMALL HAIL...DANGEROUS LIGHTNING...AND BRIEF
HEAVY RAIN ARE POSSIBLE WITH THESE STORMS. STAY TUNED TO LOCAL MEDIA
SOURCES FOR FURTHER INFORMATION AND REMAIN INDOORS.

WCJIN-WYNE
JONES
Special weather statement, Jul 13, 10:05 PM MDT, 5 hours 22 minutes before
WYZ054-055-056-140500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CASPER WY
1005 PM MDT THU JUL 13 1995

...STRONG THUNDERSTORMS WERE MOVING THROUGH NORTHEAST WYOMING...

AT 1000 PM MDT...RADAR INDICATED STRONG THUNDERSTORMS OVER EXTREME
NORTHEAST CAMPBELL COUNTY. THE STRONGEST STORM WAS LOCATED NEAR THE
COMMUNITY OF ROCKYPOINT 45 MILES NORTHEAST OF GILLETTE. ALSO...
STRONG THUNDERSTORMS IN JOHNSON COUNTY ARE EXPECTED TO MOVE INTO
NORTHWEST CAMPBELL COUNTY IN THE NEXT HALF HOUR. ALL OF THE STORMS
WERE MOVING TO THE EAST-NORTHEAST AT 25 MPH.

STRONG WIND GUSTS...SMALL HAIL...DANGEROUS LIGHTNING...AND BRIEF
HEAVY RAIN ARE POSSIBLE WITH THESE STORMS. STAY TUNED TO LOCAL MEDIA
SOURCES FOR FURTHER INFORMATION AND REMAIN INDOORS.

WCJIN-WYNE
JONES
Special weather statement, Jul 13, 11:00 PM MDT, 4 hours 27 minutes before
WYZ054>057-140600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CASPER WY
1100 PM MDT THU JUL 13 1995

...STRONG THUNDERSTORMS CONTINUE ACROSS NORTHEAST WYOMING...

AT 1055 PM MDT...STRONG THUNDERSTORMS IN NORTHERN CAMPBELL AND
EXTREME NORTHERN CROOK COUNTY WERE INDICATED BY RADAR. ONE STRONG
STORM WAS LOCATED 35 MILES NORTH OF SUNDANCE IN CROOK COUNTY. THIS
STORM WAS MOVING TO THE EAST AT 25 MPH. ANOTHER STRONG STORM WAS
LOCATED 10 MILES WEST OF GILLETTE IN CAMPBELL COUNTY. MOVEMENT ON
THIS STORM WAS NORTHEAST AT 25 MPH.

THESE THUNDERSTORMS WILL PRODUCE BRIEF HEAVY RAIN...DANGEROUS
LIGHTNING...GUSTY WINDS...AND POSSIBLY SMALL HAIL. STAY INDOORS AWAY
FROM WINDOWS IF THESE STORMS APPROACH YOUR AREA.

WCJIN-WYNE
JONES
Special weather statement, Jul 13, 11:45 PM MDT, 3 hours 42 minutes before
WYZ054>057-140645-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CASPER WY
1145 PM MDT THU JUL 13 1995

...STRONG THUNDERSTORMS WERE MOVING THROUGH NORTHEAST WYOMING...

AT 1140 PM MDT...RADAR INDICATED THAT STRONG THUNDERSTORMS CONTINUED
TO MOVE ACROSS NORTHERN CAMPBELL COUNTY. THE LINE OF STORMS EXTENDED
FROM THE MONTANA BORDER TO 20 MILES EAST OF GILLETTE. THE STRONGEST
STORMS IN THIS LINE WERE 15 MILES EAST OF GILLETTE AND 30 MILES
NORTHEAST OF GILLETTE. THE LINE OF STORMS WAS MOVING EAST AT 35 MPH
AND SHOULD MOVE INTO CROOK COUNTY BY MIDNIGHT.

THESE THUNDERSTORMS WILL PRODUCE BRIEF HEAVY RAIN...DANGEROUS
LIGHTNING...STRONG GUSTY WINDS...AND SMALL HAIL. STAY INDOORS AWAY
FROM WINDOWS IF THESE STORMS APPROACH YOUR AREA.  TUNE IN LOCAL MEDIA
SOURCES FOR FURTHER INFORMATION.

WCJIN-WYNE
JONES

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.