Tornado Warning 16, NWS Cheyenne, WY

Issued

Jun 12, 2017, 5:34 PM MDT (23:34 UTC)

Expired

Jun 12, 2017, 6:15 PM MDT

In force

41 min

Issued by

NWS Cheyenne, WY

Area

Storm-based polygon

Tornado

Observed

Hail

2.75 in

Counties Sioux County, NE, Goshen County, WY, Niobrara County, WY

The Cheyenne radar (KCYS), 159 km from the middle of the area, began a volume at 23:34 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.

956 
WFUS55 KCYS 122334
TORCYS
NEC165-WYC015-027-130015-
/O.NEW.KCYS.TO.W.0016.170612T2334Z-170613T0015Z/

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

The National Weather Service in Cheyenne has issued a

* Tornado Warning for...
  West central Sioux County in the Panhandle of Nebraska...
  Southeastern Niobrara County in east central Wyoming...
  Northeastern Goshen County in southeastern Wyoming...

* Until 615 PM MDT

* At 534 PM MDT, a confirmed tornado was located 9 miles southeast of
  Prairie Center, or 24 miles north of Torrington, moving northeast
  at 20 mph.

  HAZARD...Damaging tornado and baseball size hail. 

  SOURCE...Emergency Management confirmed tornado. 

  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
  west central Sioux...southeastern Niobrara and northeastern Goshen
  Counties, including the following locations: Van Tassell.

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.

&&

LAT...LON 4230 10401 4237 10423 4272 10410 4257 10369
TIME...MOT...LOC 2334Z 205DEG 19KT 4241 10409 

TORNADO...OBSERVED
HAIL...2.75IN

$$

Finch

247 
WWUS55 KCYS 122351
SVSCYS

Severe Weather Statement
National Weather Service Cheyenne WY
551 PM MDT MON JUN 12 2017

WYC027-130000-
/O.CAN.KCYS.TO.W.0016.000000T0000Z-170613T0015Z/
Niobrara WY-
551 PM MDT MON JUN 12 2017

...THE TORNADO WARNING FOR SOUTHEASTERN NIOBRARA COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area.  Therefore, the warning has been cancelled.

A tornado watch remains in effect until 800 PM MDT for the Panhandle
of Nebraska...and southeastern Wyoming.

LAT...LON 4241 10395 4251 10414 4267 10400 4259 10376
TIME...MOT...LOC 2350Z 205DEG 19KT 4249 10404 

$$

NEC165-WYC015-130015-
/O.CON.KCYS.TO.W.0016.000000T0000Z-170613T0015Z/
Sioux NE-Goshen WY-
551 PM MDT MON JUN 12 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM MDT FOR WEST
CENTRAL SIOUX AND NORTHEASTERN GOSHEN COUNTIES...
    
At 550 PM MDT, a confirmed tornado was located 8 miles east of
Prairie Center, or 28 miles southeast of Lusk, moving northeast at 20
mph.

HAZARD...Damaging tornado and baseball size hail. 

SOURCE...Emergency management confirmed tornado. 

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
west central Sioux and northeastern Goshen Counties.

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.

&&

LAT...LON 4241 10395 4251 10414 4267 10400 4259 10376
TIME...MOT...LOC 2350Z 205DEG 19KT 4249 10404 

TORNADO...OBSERVED
HAIL...2.75IN

$$

Finch

Tornado Warnings in Wyoming, 2017Tornado Warnings in Nebraska, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.