Severe Thunderstorm Warning 14, NWS Riverton, WY

Issued

Aug 6, 2021, 4:53 PM MDT (22:53 UTC)

Expired

Aug 6, 2021, 5:30 PM MDT

In force

37 min

Issued by

NWS Riverton, WY

Area

Storm-based polygon

Hail

1.0 in

Wind

60.0 mph

County Natrona County, WY

The Riverton/Lander radar (KRIW), 116 km from the middle of the area, began a volume at 22:53 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.

002 
WUUS55 KRIW 062253
SVRRIW
WYC025-062330-
/O.NEW.KRIW.SV.W.0014.210806T2253Z-210806T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Riverton WY
453 PM MDT Fri Aug 6 2021

The National Weather Service in Riverton has issued a

* Severe Thunderstorm Warning for...
  Southwestern Natrona County in central Wyoming...

* Until 530 PM MDT.

* At 453 PM MDT, a severe thunderstorm was located 8 miles east of
  Ervay, or 39 miles northeast of Jeffrey City, moving northeast 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.

* Locations impacted include...
  Powder River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4267 10718 4283 10739 4318 10696 4291 10667
TIME...MOT...LOC 2253Z 224DEG 29KT 4284 10720 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Vorst

444 
WWUS55 KRIW 062310
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
510 PM MDT Fri Aug 6 2021

WYC025-062330-
/O.CON.KRIW.SV.W.0014.000000T0000Z-210806T2330Z/
Natrona-
510 PM MDT Fri Aug 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MDT
FOR CENTRAL NATRONA COUNTY...

At 510 PM MDT, a severe thunderstorm was located 7 miles southwest of
Powder River, or 38 miles west of Casper, moving northeast at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Powder River and Natrona. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4277 10706 4291 10726 4317 10695 4294 10670
TIME...MOT...LOC 2310Z 224DEG 29KT 4294 10707 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Vorst

328 
WWUS55 KRIW 062325
SVSRIW

Severe Weather Statement
National Weather Service Riverton WY
525 PM MDT Fri Aug 6 2021

WYC025-062334-
/O.EXP.KRIW.SV.W.0014.000000T0000Z-210806T2330Z/
Natrona-
525 PM MDT Fri Aug 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NATRONA COUNTY WILL
EXPIRE AT 530 PM MDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM MDT for
central Wyoming.

LAT...LON 4277 10706 4291 10726 4317 10695 4294 10670
TIME...MOT...LOC 2324Z 224DEG 29KT 4299 10701 

$$

Vorst

Severe Thunderstorm Warnings in Wyoming, 2021Every severe thunderstorm warning in 2021

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.