Tornado Warning 7, NWS Riverton, WY

Issued

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

Expired

Jun 12, 2017, 6:30 PM MDT

In force

30 min

Issued by

NWS Riverton, WY

Area

Storm-based polygon

Tornado

Observed

Hail

2.5 in

County Johnson County, WY

The Riverton/Lander radar (KRIW), 184 km from the middle of the area, began a volume at 00:03 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.

053 
WFUS55 KRIW 130000
TORRIW
WYC019-130030-
/O.NEW.KRIW.TO.W.0007.170613T0000Z-170613T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Riverton WY
600 PM MDT MON JUN 12 2017

The National Weather Service in Riverton has issued a

* Tornado Warning for...
  Central Johnson County in north central Wyoming...

* Until 630 PM MDT

* At 559 PM MDT, a likely tornado was located 12 miles west of Fort 
  Reno Historical Site, which is 12 miles northeast of Kaycee, 
  moving north at 30 mph.  A tornado was confirmed just west of 
  Kaycee earlier with this storm.

  HAZARD...Damaging tornado and tennis ball size hail. 

  SOURCE...Weather spotters confirmed tornado west of Kaycee as 
           well as tennis ball size hail. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This tornadic thunderstorm will remain over mainly rural areas of
  central Johnson County.

This includes Interstate 25 between mile markers 254 and 286.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

&&

LAT...LON 4369 10630 4371 10685 4418 10683 4414 10617
TIME...MOT...LOC 2359Z 189DEG 26KT 4385 10648 

TORNADO...OBSERVED
HAIL...2.50IN

$$

McDonald

415 
WWUS55 KRIW 130014 RRA
SVSRIW

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

WYC019-130030-
/O.CON.KRIW.TO.W.0007.000000T0000Z-170613T0030Z/
Johnson-
614 PM MDT MON JUN 12 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR CENTRAL
JOHNSON COUNTY...
    
At 612 PM MDT, a severe thunderstorm capable of producing a tornado
was located 13 miles northwest of Fort Reno Historical Site, which 
is 17 miles northeast of Kaycee, moving north at 25 mph.  Another 
possible tornado is 9 miles north of Kaycee.

HAZARD...Tornado and two inch hail. 

SOURCE...Radar indicated rotation. A tornado was previously reported 
         with this storm just west of Kaycee.. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

This tornadic thunderstorm will remain over mainly rural areas of
central Johnson County.

This includes Interstate 25 between mile markers 261 and 286.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

&&

LAT...LON 4379 10627 4381 10682 4418 10683 4414 10617
TIME...MOT...LOC 0012Z 183DEG 23KT 4393 10647 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

McDonald

Tornado Warnings in Wyoming, 2017Every tornado warning in 2017Tornadoes 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.