Alert archive / Wyoming / Tornado Warnings in 1996
Tornado Warning 23, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jul 28, 1996, 3:22 PM MDT for Laramie County, Wyoming. It was in force for 38 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
- Jul 28, 1996, 3:22 PM MDT (21:22 UTC)
- Expired
- Jul 28, 1996, 4:00 PM MDT
- In force
- 38 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Laramie County, WY
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 28, 3:50 PM MDT | Hail 1 | Cheyenne, 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
Denver, CO (KDNR), launched 12:00Z, 9.4 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
- 186 J/kg
- Mixed-layer CIN
- -515 J/kg
- Mixed-layer LCL
- 1824 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 69 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 282127 TORCYS WYC021-282200- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 322 PM MDT SUN JUL 28 1996 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 400 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST WYOMING ...WEST CENTRAL AND NORTHWEST LARAMIE COUNTY AT 323 PM MDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 15 TO 20 MILES NORTH OF CHEYENNE. THERE WAS STRONG ROTATION INDICATED WITH THIS STORM 20 MILES NORTHWEST OF CHEYENNE OR ABOUT 6 MILES EAST OF HORSE CREEK. THIS STROM HAS THE POTENTIAL TO PRODUCE A TORNADO AT ANY MOMENT! PEOPLE IN THE VICINITY OF THIS STORM SHOULD MOVE TO THE LOWES T FLOOR. AS A LAST RESTORT...GET IN A DITCH. WCJIN-WYSE MOORE
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, Jul 28, 10:08 AM MDT, 5 hours 14 minutes before
WYZ059>070-NEZ001>003-019>021-054-055-282300-
SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
1000 AM MDT SUN JUL 28 1996
THE SEVERE WEATHER POTENTIAL IN THE COUNTY WARNING AREA OF THE CHEYENNE
NATIONAL WEATHER SERVICE OFFICE IS MEDIUM THIS AFTERNOON AND
EVENING...MAINLY IN THE NEBRASKA PANHANDLE AND EAST OF INTERSTATE 25 IN
WYOMING.
SPOTTER ACTIVATION MAY BE NECESSARY.
DISCUSSION...AN UPPER LEVEL WEATHER DISTURBANCE TRACKING SOUTHEAST OUT
OF EASTERN MONTANA IS EXPECTED PROVIDE THE ENERGY NECESSARY TO SET OFF
THUNDERSTORMS IN EASTERN WYOMING AND THE NEBRASKA PANHANDLE THIS
AFTERNOON AND EVENING. THIS WEATHER DISTURBANCE...IN COMBINATION WITH
WEAK UPSLOPE SURFACE WINDS...AMPLE LOW LEVEL MOISTURE...AND AN
INCREASING SUPPLY OF MID LEVEL MOISTURE FROM THE WEST...WILL LIKELY
GENERATE THUNDERSTORMS PRODUCING LARGE HAIL AND VERY HEAVY RAINS.
THE WIND PATTERN THROUGH THE LOWEST 20 THOUSAND FEET OF THE ATMOSPHERE
IS ALSO CONDUCIVE TO DEVELOPING SOME STORM-SCALE CIRCULATION WHICH WILL
AID IN THE DEVELOPMENT OF SEVERE WEATHER.
THIS OUTLOOK IS FOR THE FOLLOWING COUNTIES IN SOUTHEAST WYOMING AND
THE NEBRASKA PANHANDLE:
WY...ALBANY CARBON CONVERSE JGOSHEN LARAMIE NIOBRARA PLATTE
NE...BANNER BOX BUTTE CHEYENNE DAWES KIMBALL MORRILL SIOUX
SCOTTS BLUFF
WCJIN-WYSE-WYNE
JBSSpecial weather statement, Jul 28, 12:06 PM MDT, 3 hours 16 minutes before
WYZ064>070-281900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1205 PM MDT SUN JUL 28 1996 ...THUNDERSTORMS HAVE BEGUN TO DEVELOP OVER SOUTHEAST WYOMING... AT NOON MDT A SINGLE THUNDERSTORM HAD DEVELOPED 25 MILES SOUTH OF DOUGLAS...OR 25 MILES NORTHWEST OF WHEATLAND. THIS STORM WAS MOVING TO THE SOUTHEAST AT 15 MPH. IF THIS STORM CONTINUES IN THIS MANNER IT SHOULD AFFECT THE COMMUNITY OF WHEATLAND BY 115 PM. THIS STORM IS CAPABLE OF PRODUCING HEAVY RAIN...STRONG GUSTY WINDS... SMALL HAIL...AND DANGEROUS LIGHTNING. IF YOU ARE IN THE PATH OF THIS STORM TAKE COVER IN A STURDY BUILDING. WCJIN-WYSE-WYNE LRE
Special weather statement, Jul 28, 1:09 PM MDT, 2 hours 13 minutes before
NEZ001>003-281930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 108 PM MDT SUN JUL 28 1996 ...THUNDERSTORM DEVELOPING IN THE NORTHERN PANHANDLE OF NEBRASKA... AT 105 PM MDT...A THUNDERSTORM WITH HEAVY RAINFALL AND LIKELY SMALL HAIL HAD DEVELOPED IN NORTHERN SIOUX COUNTY...ABOUT 35 MILES WEST SOUTHWEST OF CHADRON...OR ABOUT 8 MILES EAST NORTHEAST OF HARRISON. THIS STORM WAS MOVING SOUTHEAST AT 20 MPH. THIS STORM WILL CROSS &OVER HIGHWAY 20 IN THE VICINITY OF FORT ROBISON AND CRAWFORD AROUND 120 PM MDT. MOORE
Special weather statement, Jul 28, 1:24 PM MDT, 1 hour 58 minutes before
WYZ061>069-282000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 122 PM MDT SUN JUL 28 1996 ...THUNDERSTORM DEVELOPING IN THE SOUTHEAST WYOMING... AT 120 PM MDT...SCATTERED THUNDERSTORMS...SOME WITH HEAVY RAINFALL AND SMALL HAIL...WERE DEVELOPING IN A 50 MILE WIDE AREA THAT EXTENDED FROM NEAR WHEATLAND WEST TO 25 MILES NORTH OF RAWLINS. THE STRONGEST STORMS WERE LOCATED 15 MILES SOUTHWEST OF WHEATLAND ON HIGHWAY 34 AND 15 MILES NORTH NORTHWEST OF WHEATLAND. THUNDERSTORMS WILL LIKELY CONTINUE DEVELOPING ACROSS SOUTHEAST WYOMING. SOME OF THE STRONGER STORMS WILL HAVE THE POTENTIAL TO PRODUCE VERY HEAVY RAINFALL...STRONG GUSTY WINDS...AND HAIL. PEOPLE IN SOUTHtEAST WYOMING SHOULD BE ON THE LOOKOUT FOR THUNDERSTORMS THIS AFTERNOON AND EVENING AND BE PREPARED TO TAKE SHELTER SHOULD THEY APPROACH. WCJIN-WYNE-WYSE MOORE
Special weather statement, Jul 28, 2:04 PM MDT, 1 hour 18 minutes before
WYZ067-282030- SEVERE WEATHER STATEMENT...CORRECTION TO TITLE NATIONAL WEATHER SERVICE CHEYENNE WY 202 PM MDT SUN JUL 28 1996 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN PLATTE COUNTY UNTIL 215 PM MDT... AT 200 PM MDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM IN SOUTHERN PLATTE COUNTY. THE THUNDERSTORM WAS LOCATED FROM 5 MILES WEST OF CHUGWATER TO 10 MILES NORTHWEST OF CHUGWATER. THIS STORM WAS MOVING SOUTH SOUTHEAST AT 20 MPH AND SHOULD REMAIN TO THE WEST OF I-25 IN SOUTHERN PLATTE COUNTY. PEOPLE IN SOUTHERN PLATTE COUNTY...ESPECIALLY TO THE WEST CHUGWATER SHOULD TAKE SHELTER NOW. WCJIN-WYNE-WYSE MOORE
Special weather statement, Jul 28, 2:23 PM MDT, 59 minutes before
NEZ002-003-282045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 221 PM MDT SUN JUL 28 1996 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN DAWES COUNTY HAS BEEN CANCELLED... AT 215 PM MDT...DOPPLER RADAR INDICATED A THUNDERSTORM IN EXTREME NORTHWESTERN BOX BUTTE COUNTY. THIS THUNDERSTOM HAD WEAKEND SOME AND IS NO LONGER THOUGHT TO BE SEVERE. SINCE THIS STORM MOVED OUT OF DAWES COUNTY...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN DAWES COUNTY WAS CANCELLED. HOWEVER... PEOPLE IN BOX BUTTE COUNTY...SHOULD MOVE TO SHELTER. THIS STORM WAS MOVING SOUTHEAST AT 25 MPH AND MOVE THROUGH MOST OF THE COUNTY AND THROUGH 300 PM MDT. THIS STORM STILL HAS THE POTENTIAL TOZ PRODUCE VERY HEAVY RAINFALL...SMALL HAIL AND STRONG GUSTY WINDS. MOORE
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 1:33 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 42 min |
| Jul 28, 2:24 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 36 min |
| Jul 28, 3:02 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 58 min |
| Jul 28, 3:37 PM MDT | Tornado Warning | CYS | Laramie | 33 min |
| Jul 28, 3:59 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 46 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.