Alert archive / Wyoming / Tornado Warnings in 1996
Tornado Warning 1, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at May 6, 1996, 10:40 PM MDT for Goshen County, Wyoming. It was in force for 65 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 6, 1996, 10:40 PM MDT (04:40 UTC)
- Expired
- May 6, 1996, 11:45 PM MDT
- In force
- 65 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Goshen County, WY
The radar
The Cheyenne radar (KCYS), 111 km from the middle of the area, began a volume at 04:44 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 6, 11:18 PM MDT | Hail 2.5 | La Grange, 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
Rapid City, SD (KUNR), launched 00:00Z, 4.7 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1571 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 253 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 070443 TORCYS WYC015-070545- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 1040 PM MDT MON MAY 6 1996 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 1145 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST WYOMING ...SOUTHERN GOSHEN COUNTY AT 1032PM THE DOPPLER RADAR AT CHEYENNE INDICATED A TORNADO WITH A SEVERE THUNDERSTORM OVER THE SOUTHWEST CORNER OF GOSHEN COUNTY. THE TORNADO WAS 34 MILES NORTH OF CHEYENNE...15 MILES WEST OF LA GRANGE WYOMING. THE STORM WAS MOVING TO THE EAST AT 35 MILES AN HOUR AND WILL REACH THE LA GRANGE AREA SHORTLY AFTER 11PM. GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR! WCJIN-WYSE COX &
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 6, 5:23 PM MDT, 5 hours 17 minutes before
WYZ067-068-070-NEZ001-002-003-019-020-021-054-055-070030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 521 PM MDT MON MAY 6 1996 ...STRONG THUNDERSTORM OVER SOUTHERN NEBRASKA PANHANDLE... AT 510PM THE DOPPLER RADAR AT CHEYENNE SHOWED A STRONG THUNDERSTORM OVER SOUTHEAST BANNER COUNTY OF THE NEBRASKA PANHANDLE. THE STORM WAS ABOUT 10 MILES SOUTHEAST OF HARRISBURG. THE STORM WAS MOVING TO THE NORTHEAST AT 25 MILES AN HOUR AND WILL MOVE INTO SOUTHWEST MORRILL COUNTY SHORTLY BEFORE 545PM AND MOVE JUST SOUTH OF REDINGTON AND BRIDGEPORT BY 615PM. BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND SMALL HAIL MAY ACCOMPANY THIS STORM. OTHER LIGHTER SHOWERS AND THUNDERSTORMS WERE DEVELOPING OVER PLATTE ...GOSHEN AND LARAMIE COUNTIES OF THE SOUTHEAST CORNER OF WYOMING. THESE WILL SOON BE MOVING ACROSS THE NEBRASKA BORDER INTO THE PANHANDLE. WCJIN-WYSE COX
Special weather statement, May 6, 5:49 PM MDT, 4 hours 51 minutes before
NEZ019-020-021-054-055-070045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 546 PM MDT MON MAY 6 1996 ...STRONG THUNDERSTORM STILL IN SOUTHERN NEBRASKA PANHANDLE... AT 535PM A STRONG THUNDERSTORM WAS STILL IN THE SOUTHERN NEBRASKA PANHANDLE MOVING INTO SOUTHWEST MORRILL COUNTY. THE STORM WAS ABOUT TO PASS THROUGH THE REDINGTON AREA AND WILL REACH BRIDGEPORT SHORTLY AFTER 600PM. BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND POSSIBLY HAIL UP TO A HALF OF AN INCH IN DIAMETER SHOULD BE EXPECTED WITH THIS STORM. THE STORM WAS MOVING TO THE NORTHEAST AT 30 MILES AN HOUR. ANOTHER WEAKER THUNDERSTORM WAS NEAR PINE BLUFFS WYOMING AND ABOUT TO MOVE INTO KIMBALL COUNTY NEBRA SKA. THIS STORM WAS MOVING TO THE NORTHEAST AT 25 MILES AN HOUR. COX
Special weather statement, May 6, 6:07 PM MDT, 4 hours 33 minutes before
NEZ019-020-021-054-055-070045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 605 PM MDT MON MAY 6 1996 ...THUNDERSTORMS OVER SOUTHERN NEBRASKA PANHANDLE WEAKENING RAPIDLY... AT 600PM THE CHEYENNE DOPPLER RADAR SHOWED THE THUNDERSTORM OVER SOUTHERN MORRILL COUNTY BETWEEN REDINGTON AND BRIDGEPORT WEAKENING RAPIDLY AS WAS THE STORM IN EXTREME WEST KIMBALL COUNTY. IN FACT... THESE MAY SOON ONLY BE LIGHT RAINSHOWERS WITH NO THUNDER. THE THUNDERSTORMS CONTINUED TO MOVE TO THE NORTHEAST AT 25 TO 30 MILES AN HOUR. COX
Special weather statement, May 6, 7:32 PM MDT, 3 hours 8 minutes before
NEZ019-020-070230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 730 PM MDT MON MAY 6 1996 ...STRONG THUNDERSTORM HEADING TOWARD SCOTTSBLUFF... AT 725 PM A STRONG THUNDERSTORM WAS LOCATED IN NORTHWESTERN BANNER COUNTY IN NEBRASKA. THIS STORM IS MOVING NORTHEAST AT 30 MPH AND IS EXPECTED TO AFFECT THE SCOTTSBLUFF AREA BY 830 PM. THIS IS A STRONG THUNDERSTORM. BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND POSSIBLY HAIL A HALF OF zAN INCH IN DIAMETER SHOULD BE EXPECTED WITH THIS STORM. REMEMBER THAT LIGHTNING CAN AND DOES KILL. ROBINSON/COX
Special weather statement, May 6, 10:16 PM MDT, 24 minutes before
WYZ067-068-069-070-NEZ001-019-020-054-070515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1012 PM MDT MON MAY 6 1996 ...A STRONG THUNDERSTORM HAS DEVELOPED NEAR CHUGWATER... AT 10PM THE CHEYENNE DOPPLER RADAR SHOWED A STRONG THUNDERSTORM ABOUT 35 MILES NORTH OF CHEYENNE...JUST SOUTH OF CHUGWATER IN EXTREME SOUTHERN PLATTE COUNTY. THE STORM WAS OVER INTERSTATE 25. THE STORM WAS MOVING TO THE EAST AT 40 MILES AN HOUR. IT SHOULD CROSS INTO SOUTHERN GOSHEN COUNTY SOON AND MOVE BETWEEN HAWK SPRINGS AND LA GRANGE REACHING THE NEBRASKA BORDER AROUND 11PM. BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND HAIL POSSIBLY UP TO A HALF OF AN INCH IN DIAMETER SHOULD BE EXPECTED W"ITH THIS STORM. OTHER LIGHTER THUNDERSTORMS WERE REDEVELOPING OVER THE COUNTIES OF THE SOUTHEAST CORNER OF WYOMING. WCJIN-WYSE COX
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 3:02 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Platte | 58 min |
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.