Alert archive / Wyoming / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 162, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Aug 9, 1996, 4:12 PM MDT for Goshen County, Platte County, Wyoming. It was in force for 48 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
- Aug 9, 1996, 4:12 PM MDT (22:12 UTC)
- Expired
- Aug 9, 1996, 5:00 PM MDT
- In force
- 48 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
Counties Goshen County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 107 km from the middle of the area, began a volume at 22:18 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 |
|---|---|---|---|
| Aug 9, 5:05 PM MDT | Hail 0.75 | 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 12:00Z, 10.2 hours before the alert went out and 261 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
- 994 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 1975 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 severe thunderstorm 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, Aug 9, 3:47 PM MDT, 25 minutes before
NEZ001-019-020-054-WYZ059-060-067>070-092230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 345 PM MDT FRI AUG 9 1996 AT 330 PM MDT...DOPPLER RADAR INDICATED NUMBER OF THUNDERSTORMS FROM WESTERN CONVERSE COUNTY INTO WESTERN AND SOUTHCENTRAL SOUTHCENTRAL PLATTE COUNTY. THE STORMS IN WESTERN CONVERSE COUNTY WERE LOCATED 30 MILES WEST NORTH WEST OF DOUGLAS AND 25 MILE NORTH NORTHWEST OF DOUGLAS. THE STORMS WERE MOVING EAST AT 15 MILES AN HOUR. STORMS IN PLATTE COUNTY WERE LOCATED 20 MILES NORTH NORTHWEST OF WHEATLAND...17 MILES WEST OF WHEATLAND AND 18 MILES SOUTH OF WHEATLAND. THE STORMS WERE MOVING SOUTHEAST AT 15 TO 20 MILES AN HOUR. A SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED ON THE STORM 18 MILES SOUTH OF WHEATLAND...FOR POSSIBLE LARGE HAIL UNTIL 445 PM. OTHER STORMS MAY PRODUCE SMALL HAIL...BRIEF HEAVY RAINS AND DANGEROUS LIGHTNING UNTIL 445 PM. WCJIN-WYSE PAL
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:27 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Scotts Bluff | 48 min |
| Aug 9, 3:41 PM MDT | Severe Thunderstorm Warning | CYS | Platte | 64 min |
| Aug 9, 4:51 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Laramie | 39 min |
| Aug 9, 5:33 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Laramie | 42 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 1996Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.