Severe Thunderstorm Warning 33, NWS Cheyenne, WY

Issued

Jun 7, 2012, 2:51 PM MDT (20:51 UTC)

Expired

Jun 7, 2012, 3:45 PM MDT

In force

54 min

Issued by

NWS Cheyenne, WY

Area

Storm-based polygon

Hail

1.75 in

Wind

60.0 mph

Counties Goshen County, WY, Platte County, WY

The Cheyenne radar (KCYS), 98 km from the middle of the area, began a volume at 20:51 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.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

563 
WUUS55 KCYS 072051
SVRCYS
WYC015-031-072145-
/O.NEW.KCYS.SV.W.0033.120607T2051Z-120607T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
251 PM MDT THU JUN 7 2012

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL GOSHEN COUNTY IN SOUTHEAST WYOMING...
  SOUTHERN PLATTE COUNTY IN SOUTHEAST WYOMING...

* UNTIL 345 PM MDT

* AT 247 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
  THUNDERSTORM PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 11 MILES WEST OF
  WHEATLAND...AND MOVING SOUTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHEATLAND...BORDEAUX AND CHUGWATER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR LARGE DESTRUCTIVE HAIL CAPABLE OF PRODUCING
SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4204 10528 4211 10529 4223 10519 4197 10451
      4168 10478
TIME...MOT...LOC 2050Z 309DEG 24KT 4208 10514
WIND...HAIL 60MPH 1.75IN

$$

FINCH

435 
WWUS55 KCYS 072125
SVSCYS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
325 PM MDT THU JUN 7 2012

WYC015-031-072145-
/O.CON.KCYS.SV.W.0033.000000T0000Z-120607T2145Z/
GOSHEN WY-PLATTE WY-
325 PM MDT THU JUN 7 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
PLATTE AND WEST CENTRAL GOSHEN COUNTIES UNTIL 345 PM MDT...

AT 319 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE 
THUNDERSTORM PRODUCING A TORNADO AND GOLFBALL SIZED HAIL.  A TORNADO 
WARNING IS ALSO IN EFFECT FOR THIS STORM.  THIS STORM WAS LOCATED 
NEAR BORDEAUX...OR NEAR WHEATLAND...MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  BORDEAUX AND CHUGWATER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR LARGE DESTRUCTIVE HAIL CAPABLE OF PRODUCING
SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4201 10524 4208 10518 4216 10503 4197 10451
      4168 10478
TIME...MOT...LOC 2123Z 309DEG 24KT 4198 10497
WIND...HAIL 60MPH 1.75IN

$$

FINCH

Severe Thunderstorm Warnings in Wyoming, 2012Every severe thunderstorm warning in 2012

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.