Alert archive / Wyoming / Flash Flood Warnings in 1996
Flash Flood Warning 3, NWS Cheyenne, WY
NWS Cheyenne, WY issued this flash flood warning at Jul 23, 1996, 4:05 PM MDT for Laramie County, Wyoming. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1996, 4:05 PM MDT (22:05 UTC)
- Expired
- Jul 23, 1996, 4:30 PM MDT
- In force
- 25 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Laramie County, WY
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 10.1 hours before the alert went out and 202 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
- 711 J/kg
- Mixed-layer CIN
- -291 J/kg
- Mixed-layer LCL
- 1597 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 23, 10:05 AM MDT, 6 hours before
WYZ059>070-NEZ001>03-019>021-054-055-232300-
SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1005 AM MDT TUE JUL 23 1996
THE SEVERE WEATHER POTENTIAL IN THE COUNTY WARNING AREA OF THE CHEYENNE
NATIONAL WEATHER SERVICE OFFICE IS LOW THIS AFTERNOON AND EVENING.
SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON AND EVENING.
DISCUSSION...ABUNDANT LOW LEVEL MOISTURE PERSISTS OVER SOUTHEAST
WYOMING AND THE WESTERN NEBRASKA PANHANDLE. A DISTURBANCE IN THE UPPER
ATMOSPHERE WILL BE APPROACHING FROM THE NORTHWEST THIS AFTERNOON.
WIDELY SCATTERED THUNDERSTORMS WILL DEVELOP OVER SOUTHEAST WYOMING AND
THE WESTERN NEBRASKA PANHANDLE THIS AFTERNOON. THEY WILL ENCOUNTER
GREATER INSTABILITIES AS THEY MOVE THROUGH THE PANHANDLE AND COULD
STRENGTHEN QUICKLY.
THIS OUTLOOK IS FOR THE FOLLOWING COUNTIES IN SOUTHEAST WYOMING AND
THE NEBRASKA PANHANDLE.
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WY...ALBANY...CARBON...CONVERSE...GOSHEN...LARAMIE...NIOBRARA...PLATTE
NE...BANNER BOX BUTTE CHEYENNE DAWES KIMBALL MORRILL SIOUX
SCOTTS BLUFF
WCJIN-WYSE-WYNE
COXSpecial weather statement, Jul 23, 1:50 PM MDT, 2 hours 15 minutes before
WYZ062>066-069-232030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 150 PM MDT TUE JUL 23 1996 ...THUNDERSTORMS WERE DEVELOPING OVER PARTS OF SOUTHEAST WYOMING... SCATTERED THUNDERSTORMS HAD DEVELOPED MAINLY OVER ALBANY COUNTY IN SOUTHEAST WYOMING EARLY THIS AFTERNOON. ALL OF THE THUNDERSTORMS WERE MOVING SOUTHEAST ABOUT 20 MPH. AT 145 PM MDT...THE STRONGEST THUNDERSTORM WAS 15 MILES SOUTHEAST OF LARAMIE...IN THE SOUTHEAST CORNER OF ALBANY COUNTY. BRIEF HEAVY RAIN ...GUSTY WINDS AND DEADLY LIGHTNING WERE LIKELY WITH THIS STORM. IT WILL MOVE INTO EXTREME NORTHERN COLORADO AROUND 215 PM. IF A THUNDERSTORM APPROACHES YOUR LOCATION...GET TO A SAFE PLACE IMMEDIATELY...AND INDOORS IF POSSIBLE. WCJIN-WYSE JLH
Special weather statement, Jul 23, 2:39 PM MDT, 1 hour 26 minutes before
WYZ065-066-067-069-232115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 238 PM MDT TUE JUL 23 1996 ...THUNDERSTORMS WERE RUMBLING OVER PARTS OF SOUTHEAST WYOMING... THERE WERE SCATTERED THUNDERSTORMS OVER EXTREME SOUTHEAST WYOMING AT 235 PM MDT. MOST OF THE STORMS WERE ALONG AND SOUTH OF INTERSTATE 80 BETWEEN CHEYENNE AND THE SUMMIT EAST OF LARAMIE. THE STRONGEST THUNDERSTORM WAS ABOUT 15 MILES WEST OF CHEYENNE... MOVING SOUTHEAST AT 20 MPH. THE MAIN PART OF THIS STORM WILL LIKELY PASS JUST SOUTHWEST BY 3 PM MDT. SHOULD A THUNDERSTORM APPROACH YOUR AREA...GET TO A SAFE PLACE IMMEDIATELY. WCJIN-WYSE JLH
Special weather statement, Jul 23, 2:41 PM MDT, 1 hour 24 minutes before
WYZ065-066-067-069-232115- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE CHEYENNE WY 238 PM MDT TUE JUL 23 1996 ...THUNDERSTORMS WERE RUMBLING OVER PARTS OF SOUTHEAST WYOMING... THERE WERE SCATTERED THUNDERSTORMS OVER EXTREME SOUTHEAST WYOMING AT 235 PM MDT. MOST OF THE STORMS WERE ALONG AND SOUTH OF INTERSTATE 80 BETWEEN CHEYENNE AND THE SUMMIT EAST OF LARAMIE. THE STRONGEST THUNDERSTORM WAS ABOUT 15 MILES WEST OF CHEYENNE... MOVING SOUTHEAST AT 20 MPH. THE MAIN PART OF THIS STORM WILL LIKELY PASS JUST SOUTHWEST OF CHEYENNE BY 3 PM MDT. SHOULD A THUNDERSTORM APPROACH YOUR AREA...GET TO A SAFE PLACE IMMEDIATELY. WCJIN-WYSE < CORRECTED TYPO IN MIDDLE PARAGRAPH. JLH
Special weather statement, Jul 23, 3:26 PM MDT, 39 minutes before
WYZ065-066-067-069-232200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 325 PM MDT TUE JUL 23 1996 ...A FEW THUNDERSTORMS CONTINUED OVER PARTS OF SOUTHEAST WYOMING... WIDELY SCATTERED THUNDERSTORMS WERE STILL OCCURRING IN PARTS OF SOUTHEAST WYOMING AT 320 PM MDT. THE STRONGEST OF THESE STORMS WAS PASSING THROUGH THE SOUTHWEST EDGE OF CHEYENNE AND WAS STILL MOVING SOUTHEAST AT 20 MPH. THIS THUNDERSTORM WILL CONTINUE TO BRING HEAVY RAIN...DEADLY LIGHTNING AND SOME SMALL HAIL TO THE FAR SOUTHWEST AND SOUTH SIDES OF CHEYENNE UNTIL 340 PM MDT. OTHER...BUT WEAKER...THUNDERSTORMS WERE LOCATED 15 MILES EAST OF LARAMIE AND JUST WEST OF WHEATLAND AT 320 PM MDT. TLHESE STORMS WERE ALSO MOVING SOUTHEAST AT 20 MPH. SHOULD A THUNDERSTORM APPROACH YOUR AREA...GET TO A SAFE PLACE IMMEDIATELY. WCJIN-WYSE JLH
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 4:05 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 25 min |
Nearby
Flash Flood Warnings in Wyoming, 1996Every flash flood warning in 1996
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.