Severe Thunderstorm Warning 21, NWS Riverton, WY

Issued

Jun 12, 2017, 6:02 PM MDT (00:02 UTC)

Expired

Jun 12, 2017, 6:21 PM MDT

In force

19 min

Issued by

NWS Riverton, WY

Area

Storm-based polygon

Tornado

Possible

Hail

1.0 in

Wind

60.0 mph

Counties Big Horn County, WY, Park County, WY

The Billings radar (KBLX), 134 km from the middle of the area, began a volume at 00:02 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.

967 
WUUS55 KRIW 130002
SVRRIW
WYC003-029-130045-
/O.NEW.KRIW.SV.W.0021.170613T0002Z-170613T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Riverton WY
602 PM MDT MON JUN 12 2017

The National Weather Service in Riverton has issued a

* Severe Thunderstorm Warning for...
  Northwestern Big Horn County in central Wyoming...
  Northeastern Park County in central Wyoming...

* Until 645 PM MDT

* At 601 PM MDT, a severe thunderstorm was located 16 miles south of
  Powell, moving north at 35 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* This severe thunderstorm will be near,
  Powell and Garland around 630 PM MDT. 
  Deaver around 645 PM MDT. 

Other locations impacted by this severe thunderstorm include Powell
Valley Hospital, Southside Elementary, Powell Golf Course, Powell
High School, Park County Library Powell Branch, Powell Middle School,
Parkside Elementary School, Westside Elementary School, Powell
Municipal Airport and Rocky Mountains Middle School.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter such as an interior room, a
bathroom, closet or basement.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4446 10849 4443 10874 4492 10890 4496 10852
TIME...MOT...LOC 0001Z 170DEG 31KT 4453 10864 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

Braun

165 
WWUS55 KRIW 130021
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
621 PM MDT MON JUN 12 2017

WYC003-029-130031-
/O.CAN.KRIW.SV.W.0021.000000T0000Z-170613T0045Z/
Big Horn-Park-
621 PM MDT MON JUN 12 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BIG HORN AND
NORTHEASTERN PARK COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been cancelled.

A severe thunderstorm watch remains in effect until 1000 PM MDT for
central Wyoming.

LAT...LON 4446 10849 4443 10874 4492 10890 4496 10852
TIME...MOT...LOC 0018Z 170DEG 31KT 4470 10868 

$$

Braun

Severe Thunderstorm Warnings in Wyoming, 2017Every severe thunderstorm warning in 2017

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; radar from the NEXRAD Level II archive.