Alert archive / Wyoming / Tornado Warnings in 1996
Tornado Warning 3, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at May 23, 1996, 1:09 PM MDT for Albany County, Wyoming. It was in force for 36 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 23, 1996, 1:09 PM MDT (19:09 UTC)
- Expired
- May 23, 1996, 1:45 PM MDT
- In force
- 36 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Albany County, WY
The radar
The Cheyenne radar (KCYS), 95 km from the middle of the area, began a volume at 19:08 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 23, 1:30 PM MDT | Tornado F0 | Laramie, WY |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 7.2 hours before the alert went out and 270 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
- 693 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 210 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 231910 TORCYS WYC001-231945- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 109 PM MDT THU MAY 23 1996 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 145 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST WYOMING ...SOUTH CENTRAL ALBANY COUNTY A SPOTTER IN WEST LARAMIE REPORTED A FUNNEL CLOUD. DOPPLER RADAR INDICATED ROTATION IN THE THUNDERSTORM. THE STORM WAS MOVING NORTHEAST AT 25 MPH AND WILL PASS THROUGH NORTHERN LARAMIE BY 130 PM. GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!
What forecasters said that day
The local office's own words before this tornado 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, May 23, 10:09 AM MDT, 3 hours before
WYZ059>070-NEZ001>03-019>021-054-055-222300-
SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1000 AM MDT THU MAY 23 1996
THE SEVERE WEATHER POTENTIAL IN THE COUNTY WARNING AREA OF THE CHEYENNE
NATIONAL WEATHER SERVICE OFFICE IS MODERATE THIS AFTERNOON AND EVENING.
SPOTTER ACTIVATION MAY BE NECESSARY.
DISCUSSION...A STRONG UPPER LEVEL JET WITH PLENTY OF DYNAMICS ALOFT
WILL DOMINATE THE EASTERN PORTIONS OF WYOMING AND WESTERN NEBRASKA
TODAY. TEMPERATURES ARE COOL AT THE SURFACE AND ALOFT BUT INSTABILITY
SHOULD STILL DEVELOP LATER TODAY WITH SUFFICIENT MOISTURE TO
PROMOTE CONVECTION AND AFTERNOON THUNDERSTORMS. AREAS OF LOCALLY HEAVY
RAINS ARE ALSO POSSIBLE WITH CONVECTIVE DEVELOPMENT. THERE WILL BE A
SLIGHT RISK FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND THIS EVENING.
THIS OUTLOOK IS FOR THE FOLLOWING COUNTIES IN SOUTHEAST WYOMING AND
THE NEBRASKA PANHANDLE:
>
WY...ALBANY...CONVERSE...GOSHEN...LARAMIE...NIOdBRARA...PLATTE.
NE...BANNER BOX BUTTE CHEYENNE DAWES KIMBALL MORRILL SIOUX
SCOTTS BLUFF
WCJIN-WYSE-WYNE
WTPSpecial weather statement, May 23, 10:41 AM MDT, 2 hours 28 minutes before
WYZ059>070-231730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1035 AM MDT THU MAY 23 1996 STRONG THUNDERSTORMS WERE DEVELOPING IN PARTS OF SOUTHEAST WYOMING THIS MORNING. AT 1030 AM DOPPLER RADAR SHOWED WIDESPREAD SHOWERS WITH A LINE OF THUNDERSTORMS EXTENDING FROM NEAR LARAMIE IN ALBANY COUNTY TO SOUTHWEST CONVERSE COUNTY. THESE STORM WERE PRODUCING SMALL HAIL AND HEAVY RAIN. ALL THE SHOWERS AND THUNDERSTORMS IN SOUTHEAST WYOMING WERE MOVING NORTH AT 30 MPH. THUNDERSTORMS ARE EXPECTED TO CONTINUE IN SOUTHEAST WYOMING TODAY. SOME STORMS COULD BECOME QUITE STRONG WITH THE POTENTIAL TO PRODUCE LARGE HAIL AND STRONG WINDS. HEAVY RAIN IS ALSO A POSSIBILITY WITH THESE STORMS. BE ALERT TO APPROACHING STORMS TODAY AND LISTEN TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS. WCJIN-WYSE-WYNE HARRISON
Special weather statement, May 23, 10:50 AM MDT, 2 hours 19 minutes before
NEZ001>003-019-021-054-055-231800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1045 AM MDT THU MAY 23 1996 AT 1045 AM MDT DOPPLER RADAR SHOWED DEVELOPING THUNDERSTORMS IN THE NEBRASKA PANHANDLE. MOST OF THE ACTIVITY WAS FROM SCOTTS BLUFF AND NORTHERN MORRILL COUNTY NORTH. ONE STRONG STORM WAS OVER SCOTTSBLUFF AND WAS PRODUCING ONE QUARTER INCH DIAMETER HAIL AND HEAVY RAIN. ANOTHER STRONG STORM WAS DEVELOPING IN NORTHWEST MORRILL COUNTY. THESE STORMS WERE MOVING NORTH AT 35 MPH. THUNDERSTORMS ARE EXPECTED TO CONTINUE IN THE NEBRASKA PANHANDLE TODAY. SOME STORMS COULD BECOME QUITE STRONG WITH THE POTENTIAL TO PRODUCE LARGE HAIL AND STRONG WINDS. HEAVY RAIN IS ALSO A0 POSSIBILITY WITH THESE STORMS. BE ALERT TO APPROACHING STORMS TODAY AND LISTEN TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS. HARRISON
Special weather statement, May 23, 12:30 PM MDT, 39 minutes before
NEZ001>003-019-021-054-055-231930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1227 PM MDT THU MAY 23 1996 ...THUNDERSTORMS CONTINUE TO DEVELOP IN THE NEBRASKA PANHANDLE... AT 1225 PM MDT DOPPLER RADAR SHOWED WIDESPREAD SHOWERS AND THUNDERSTORMS MAINLY IN THE CENTRAL AND NORTHERN PANHANDLE. A STRONG STORM WAS LOCATED IN NORTHWEST MORRILL COUNTY MOVING NORTHEAST AT 30 MPH. THIS STORM WAS PRODUCING SMALL HAIL AND HEAVY RAIN AND WILL MOVE INTO SOUTH CENTRAL BOX BUTTE COUNTY BY 1245 PM. THUNDERSTORMS WILL CONTINUE TO DEVELOP THROUGHOUT THE NEBRASKA PANHANDLE THIS AFTERNOON. SOME STORMS COULD BECOME QUITE STRONG WITH THE POTENTIAL TO PRODUCE LARGE HAIL AND STRONG WINDS. HEAVY RAIN IS ALSO LIKELY WITH THESE STORMS. BE ALERT TO APPROACHING STORMS TODAY AND LISTEN TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS. HARRISON
Nearby
Tornado Warnings in Wyoming, 1996Every tornado warning in 1996Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.