Alert archive / Wyoming / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 83, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 11, 1992, 3:02 PM MDT for Goshen County, Wyoming. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jul 11, 1992, 3:02 PM MDT (21:02 UTC)
- Expired
- Jul 11, 1992, 3:30 PM MDT
- In force
- 28 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Goshen County, WY
The nearest sounding before it
Rapid City, SD (KRAP), launched 12:00Z, 9.0 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
- 1 J/kg
- Mixed-layer CIN
- -246 J/kg
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
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, Jul 11, 11:22 AM MDT, 3 hours 40 minutes before
WYZ025-029>034-063-112030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1120 AM MDT SAT JUL 11 1992 ...STRONG THUNDERSTORMS HAVE DEVELOPED IN THE SOUTHWEST CORNER OF WYOMING... AT 11AM MDT RADAR AND LIGHTNING DETECTION EQUIPMENT SHOWED A LARGE CLUSTER OF THUNDERSTORMS IN THE SOUTHWEST CORNER OF WYOMING. THE STRONGEST STORM WAS 25 MILES EAST OF EVANSTON WITH A COUPLE OTHER STRONG STORMS 55 MILES NORTHEAST AND 55 MILES EAST OF EVANSTON. OTHER THUNDERSTORMS WERE ALONG THE SWEETWATER/CARBON COUNTY BORDER JUST WEST OF RAWLINS. THE STORMS WERE MOVING EAST AT 20 MILES AN HOUR. SMALL HAIL...STRONG GUSTY WINDS...BRIEF HEAVY RAIN AS WELL AS DEADLY LIGHTNING SHOULD BE EXPECTED WITH THE STRONGEST STORMS. BOATERS AND OTHER PEOPLE OUTDOORS SHOULD BE PREPARED TO MOVE TO SAFETY IF A THREATENING STORM APPROACHES. COX
Special weather statement, Jul 11, 12:28 PM MDT, 2 hours 34 minutes before
WYZ025-029>034-063-112030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 1227 PM MDT SAT JUL 11 1992 ...SEVERAL QUITE STRONG THUNDERSTORMS CONTINUE IN SOUTHWEST WYOMING... AT NOON RADAR AND LIGHTNING DETECTION EQUIPMENT SHOWED SEVERAL QUITE STRONG THUNDERSTORMS IN SOUTHWEST WYOMING. ONE STORM WAS 20 MILES SOUTHWEST OF ROCK SPRINGS. VERY HEAVY RAIN WAS REPORTED AT GREEN RIVER WITH THIS STORM. ANOTHER STORM WAS JUST EAST OF FLAMING GORGE RESERVOIR ABOUT 45 MILES SOUTH OF ROCK SPRINGS. A THIRD STORM WAS 45 MILES EAST OF EVANSTON. THE STORMS WERE MOVING TO THE EAST AT 20 MILES AN HOUR. THE STORM JUST WEST OF ROCK SPRINGS WILL BE OVER THE CITY OF ROCK SPRINGS BY 130PM. BRIEF HEAVY RAIN...STRONG GUSTY WINDS AND SMALL HAIL AS WELL AS DEADLY LIGHTNING SHOULD BE EXPECTED WITH THESE STORMS. BOATERS AND OTHER PEOPLE OUTDOORS SHOULD BE PREPARED TO MOVE TO SAFETY IF A THREATENING THUNDERSTORM APPROACHES. COX
Special weather statement, Jul 11, 1:17 PM MDT, 1 hour 45 minutes before
WYZ066>073-112030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 117 PM MDT SAT JUL 11 1992 ...THUNDERSTORMS DEVELOPING OVER SOUTHEAST WYOMING... THUNDERSTORMS HAD BEGUN TO DEVELOP OVER SOUTHEAST WYOMING THIS AFTER- NOON. THE STRONGEST STRORMS WERE BETWEEN 20 AND 30 MILES SOUTH OF TORRINGTON...NEAR HAWK SPRINGS RESERVOIR. SMALL HAIL AND HEAVY RAIN WAS LIKELY WITH THIS STORM. STORMS WERE MOVING EAST AT 20 TO 25 MILES AN HOUR. PEOPLE PLANNING OUTDOOR ACTIVITY IN SOUTHEAST WYOMING THIS AFTERNOON SHOULD BE PREPARED FOR THUNDERSTORMS WITH HAIL...GUSTY WINDS AND BRIEF HEAVY RAIN. BOATERS SHOULD GET OFF THE WATER AS SOON AS POSSIBLE IF THUNDERSTORMS APPROACH. SCOTT
Special weather statement, Jul 11, 2:13 PM MDT, 49 minutes before
NEZ001-005-011-112115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 214 PM MDT SAT JUL 11 1992 ...SEVERE THUNDERSTORM WATCH FOR NEBRASKA PANHANDLE UNTIL 900 PM MDT... AT 212 PM MDT...STRONG THUNDERSTORMS WERE LOCATED 33 MILES SOUTHWEST OF SCOTTSBLUFF IN BANNER COUNTY...AND 18 MILES WEST OF SCOTTSBLUFF NEAR MORRILL IN WESTERN SCOTTSBLUFF. THE STORMS WERE MOVING NORTHEAST AT 25 MPH. HEAVY RAIN...STRONG GUSTY WINDS...AND SMALL HAIL ARE POSSIBLE WITH THESE STORMS IN BANNER...SCOTTS BLUFF...AND SOUTHERN SIOUX COUNTIES UNTIL 315 PM MDT. SEVERE THUNDERSTORM WATCH 601 IS IN EFFECT FOR THE ENTIRE NEBRASKA PANHANDLE UNTIL 900 PM MDT THIS EVENING. PFEIFFER
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 6:15 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 30 min |
| Jul 10, 6:24 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 36 min |
| Jul 10, 6:37 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff | 38 min |
| Jul 10, 6:46 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 29 min |
| Jul 10, 7:15 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff | 30 min |
| Jul 10, 7:47 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Morrill, Scotts Bluff | 28 min |
| Jul 10, 8:15 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Morrill | 30 min |
| Jul 10, 9:18 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne, Morrill | 27 min |
| Jul 11, 2:35 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 25 min |
| Jul 11, 2:58 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 32 min |
| Jul 11, 3:29 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 31 min |
| Jul 11, 3:44 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 31 min |
| Jul 11, 3:53 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 22 min |
| Jul 11, 4:03 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 27 min |
| Jul 11, 4:36 PM MDT | Tornado Warning | CYS | Box Butte | 39 min |
| Jul 11, 4:39 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 23 min |
| Jul 11, 5:16 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 29 min |
| Jul 11, 5:50 PM MDT | Tornado Warning | CYS | Cheyenne | 25 min |
| Jul 11, 2:08 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Laramie | 52 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 1992Every severe thunderstorm warning in 1992
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.