Alert archive / Wyoming / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 39, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 18, 1994, 8:00 PM MDT for Goshen County, Wyoming. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Jun 18, 1994, 8:00 PM MDT (02:00 UTC)
- Expired
- Jun 18, 1994, 8:30 PM MDT
- In force
- 30 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Goshen County, WY
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 2.0 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
- 2050 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1181 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 6.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KCYS 190203 RRA SVRCYS WYC015-190230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 800 PM MDT SAT JUN 18 1994 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM MDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST WYOMING ...EXTREME SOUTHEASTERN GOSHEN COUNTY THIS INCLUDES THE COMMUNITY OF LA GRANGE WYOMING THIS WARNING REPLACES THE SEVERE THUNDERSTORM WARNING ISSUED EARLIER FOR EASTERN LARAMIE COUNTY. AT 800 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM ABOUT TO ENTER EXTREME SOUTHEAST GOSHEN COUNTY NEAR LA GRANGE. LA GRANGE IS 29 MILES SOUTH OF TORRINGTON NEAR THE NEBRASKA BORDER. THE STORM IS THE SAME ONE THAT DROPPED GOLF BALL SIZED HAIL IN ALBIN AT 740 PM AND IS MOVING NORTH AT 15 MILES AN HOUR. PEOPLE IN AND NEAR THE COMMUNITY OF LA GRANGE SHOULD SEEK INDOOR SHELTER IMMEDIATELY. IF YOU ARE DRIVING PULL OVER OR FIND A BRIDGE TO PULL UNDER DUE TO THE THREAT OF LARGE HAIL. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. WCJIN-WYSE CAS
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, Jun 18, 6:28 PM MDT, 1 hour 32 minutes before
WYZ068-069-190130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 628 PM MDT SAT JUN 18 1994 ...A POSSIBLE WALL CLOUD WAS REPORTED SOUTH OF TORRINGTON... AT 618 PM MDT...AN OBSERVER NEAR THE TORRINGTON WYOMING AIRPORT REPORTED WHAT APPEARED TO BE A WALL CLOUD FORMING. HOWEVER...NO FURTHER CIRCULATION WAS NOTED. THE STORM WAS MOVING NORTH AND WILL PASS OVER AND JUST EAST OF THE CITY OF TORRINGTON BETWEEN NOW AND 7OO PM MDT. MARBLE SIZED HAIL AND WIND GUSTS OVER 50 MILES AN HOUR ARE POSSIBLE. PEOPLE ENGAGED IN OUTDOOR ACTIVITIES SHOULD SEEK INDOOR SHELTER IF THREATENING WEATHER APPROACHES. TREES IN NO WAY PROVIDE PROTECTION FROM STORMS...ESPECIALLY FROM THE THREAT OF LIGHTNING. WCJIN-WYSE CAS &
Special weather statement, Jun 18, 6:30 PM MDT, 1 hour 30 minutes before
WYZ068-069-190130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 628 PM MDT SAT JUN 18 1994 ...A POSSIBLE WALL CLOUD WAS REPORTED SOUTH OF TORRINGTON... AT 618 PM MDT...AN OBSERVER NEAR THE TORRINGTON WYOMING AIRPORT REPORTED WHAT APPEARED TO BE A WALL CLOUD FORMING. HOWEVER...NO FURTHER CIRCULATION WAS NOTED. THE STORM WAS MOVING NORTH AND WILL PASS OVER AND JUST EAST OF THE CITY OF TORRINGTON BETWEEN NOW AND 7OO PM MDT. MARBLE SIZED HAIL AND WIND GUSTS OVER 50 MILES AN HOUR ARE POSSIBLE. PEOPLE ENGAGED IN OUTDOOR ACTIVITIES SHOULD SEEK INDOOR SHELTER IF THREATENING WEATHER APPROACHES. TREES IN NO WAY PROVIDE PROTECTION FROM STORMS...ESPECIALLY FROM THE THREAT OF LIGHTNING. WCJIN-WYSE CAS &
Special weather statement, Jun 18, 7:32 PM MDT, 28 minutes before
NEZ001>004-019>022-054>056-190225- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 732 PM MDT SAT JUN 18 1994 ...THUNDERSTORM ALONG THE WYOMING/NEBRASKA BORDER... AT 729 PM MDT...NWS RADARS INDICATED A STRONG THUNDERSTORM ALONG THE KIMBALL COUNTY/WYOMING STATE LINE. THE STORM WAS 35 MILES SOUTHWEST OF SCOTTSBLUFF...OR 20 MILES NORTHWEST OF KIMBALL. THE THUNDERSTORM WAS MOVING NORTH AT 15 MPH. CHEYENNE NWS HAS ISSUED A SEVERE THUNDERSTORM WARNING ON THIS STORM IN WYOMING...AND A WARNING MAY NEED TO BE ISSUED FOR THIS STORM IN NEBRASKA. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING HEAVY RAIN. STREETS MAY FLOOD QUICKLY. KYLE
Special weather statement, Jun 18, 7:33 PM MDT, 27 minutes before
NEZ001>004-019>022-054>056-190225- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SCOTTSBLUFF NE 732 PM MDT SAT JUN 18 1994 ...THUNDERSTORM ALONG THE WYOMING/NEBRASKA BORDER... AT 729 PM MDT...NWS RADARS INDICATED A STRONG THUNDERSTORM ALONG THE KIMBALL COUNTY/WYOMING STATE LINE. THE STORM WAS 35 MILES SOUTHWEST OF SCOTTSBLUFF...OR 20 MILES NORTHWEST OF KIMBALL. THE THUNDERSTORM WAS MOVING NORTH AT 15 MPH. CHEYENNE NWS HAS ISSUED A SEVERE THUNDERSTORM WARNING ON THIS STORM IN WYOMING...AND A WARNING MAY NEED TO BE ISSUED FOR THIS STORM IN NEBRASKA. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VI*SIBILITIES DURING HEAVY RAIN. STREETS MAY FLOOD QUICKLY. KYLE
Special weather statement, Jun 18, 7:39 PM MDT, 21 minutes before
WYZ068-069-070-190245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 739 PM MDT SAT JUN 18 1994 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EXTREME EASTERN LARAMIE COUNTY INCLUDING THE COMMUNITY OF ALBIN... AT 735 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM JUST BEGINNING TO PASS OVER THE COMMUNITY OF ALBIN. ALBIN IS 41 MILES NORTHEAST OF CHEYENNE. THE STORM IS MOVING NORTH AT 15 MILES AN HOUR. NO REPORTS COULD BE OBTAINED FROM THE AREA...BUT RADAR INDICATED THAT HAIL OF THREE QUARTERS OF AN INCH OR HIGHER COULD BE FALLING JUST SOUTH OF ALBIN. THIS SEVERE THUNDERSTORM WILL BE IN THE ALBIN AREA UNTIL 810 PM OR SO. SEEK INDOOR SHELTER IMMEDIATELY. AVOID TREES OR OTHER TALL OUTDOOR STRUCTURES BECAUSE OF THE THREAT OF LIGHTNING STRIKES. WCJIN-WYSE CAS
Special weather statement, Jun 18, 7:40 PM MDT, 20 minutes before
WYZ068-069-070-190245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 739 PM MDT SAT JUN 18 1994 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EXTREME EASTERN LARAMIE COUNTY INCLUDING THE COMMUNITY OF ALBIN... AT 735 PM MDT...RADAR INDICATED A SEVERE THUNDERSTORM JUST BEGINNING TO PASS OVER THE COMMUNITY OF ALBIN. ALBIN IS 41 MILES NORTHEAST OF CHEYENNE. THE STORM IS MOVING NORTH AT 15 MILES AN HOUR. NO REPORTS COULD BE OBTAINED FROM THE AREA...BUT RADAR INDICATED THAT HAIL OF THREE QUARTERS OF AN INCH OR HIGHER COULD BE FALLING JUST SOUTH OF ALBIN. THIS SEVERE THUNDERSTORM WILL BE IN THE ALBIN AREA UNTIL 810 PM OR SO. SEEK INDOOR SHELTER IMMEDIATELY. A VOID TREES OR OTHER TALL OUTDOOR STRUCTURES BECAUSE OF THE THREAT OF LIGHTNING STRIKES. WCJIN-WYSE CAS
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 7:25 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 50 min |
| Jun 18, 8:28 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 32 min |
Nearby
Severe Thunderstorm Warnings in Wyoming, 1994Every severe thunderstorm warning in 1994
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.