Alert archive / Wyoming / Tornado Warnings in 2014

Tornado Warning 3, NWS Riverton, WY

June 4, 2014Hot Springs County, Wyoming

NWS Riverton, WY issued this tornado warning at Jun 4, 2014, 4:45 PM MDT for Hot Springs County, Wyoming. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 4, 2014, 4:45 PM MDT (22:45 UTC)
Expired
Jun 4, 2014, 5:15 PM MDT
In force
30 min
Issued by
NWS Riverton, WY
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Hot Springs County, WY

The radar

The Riverton/Lander radar (KRIW), 97 km from the middle of the area, began a volume at 22:46 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.

What was reported inside it

TimeReportWhereRemark
Jun 4, 4:50 PM MDTFUNNEL CLOUD27 Wsw Worland, WYWORLAND FIRE DEPARTMENT PERSONAL REPORTED A FUNNEL AT LEAST 3/4 WAY DOWN TO THE GROUND, BUT COULD NOT SEE IF IT CONTACTED THE SURFACE FROM THEIR ANGLE.

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

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 10.8 hours before the alert went out and 97 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Riverton, WY at 12:00Z on 2014-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2014-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
4 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
2025 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

626 
WFUS55 KRIW 042245
TORRIW
WYC017-042315-
/O.NEW.KRIW.TO.W.0003.140604T2245Z-140604T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
445 PM MDT WED JUN 4 2014

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL HOT SPRINGS COUNTY IN CENTRAL WYOMING...

* UNTIL 515 PM MDT

* AT 441 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 6 MILES SOUTHWEST OF STATE HWY 120 MILE MARKER
  30...AND MOVING EAST AT 30 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR INDICATED ROTATION. 

  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.

* LOCATIONS IMPACTED INCLUDE...
  LEGEND ROCK STATE PETROGLYPH SITE...HWY JCT 431 AND 120...STATE HWY
  120 MILE MARKER 30...HWY JCT 171 AND 120...STATE HWY 120 MILE
  MARKER 20...STATE HWY 431 MILE MARKER 30...STATE HWY 171 AND SAND
  DRAW RD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
RIVERTON AT 1-800-211-1448.

LAT...LON 4399 10849 4399 10843 4377 10841 4380 10876
      4398 10876 4401 10849
TIME...MOT...LOC 2244Z 270DEG 26KT 4389 10862

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

LIPSON
1 follow-up statement
220 
WWUS55 KRIW 042300
SVSRIW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
500 PM MDT WED JUN 4 2014

WYC017-042315-
/O.CON.KRIW.TO.W.0003.000000T0000Z-140604T2315Z/
HOT SPRINGS WY-
500 PM MDT WED JUN 4 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTH CENTRAL HOT SPRINGS
COUNTY UNTIL 515 PM MDT...

AT 454 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR HWY JCT 171 AND 120...AND MOVING EAST AT 25 MPH.

HAZARD...TORNADO.

SOURCE...RADAR INDICATED ROTATION. EMERGENCY PERSONNEL REPORTED A 
FUNNEL CLOUD WITH THIS STORM. 

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 DANGEROUS STORM WILL BE NEAR...
  STATE HWY 120 MILE MARKER 20 AROUND 505 PM MDT.

OTHER LOCATIONS IN THE WARNING INCLUDE SAND DRAW RD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...PARK YOUR VEHICLE AND STAY PUT.

&&

REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN
RIVERTON AT 1-800-211-1448.

LAT...LON 4399 10843 4378 10842 4380 10865 4398 10866
TIME...MOT...LOC 2258Z 268DEG 23KT 4389 10851

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

LIPSON

The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 8:43 PM MDTSpecial Weather StatementRIWWashakie47 min
Jun 4, 10:02 AM MDTSpecial Weather StatementRIWPark58 min
Jun 4, 11:30 AM MDTSpecial Weather StatementRIWBig Horn60 min
Jun 4, 12:12 PM MDTSpecial Weather StatementRIWJohnson48 min
Jun 4, 12:32 PM MDTSpecial Weather StatementRIWNatrona43 min
Jun 4, 1:12 PM MDTSpecial Weather StatementRIWNatrona63 min
Jun 4, 1:31 PM MDTSpecial Weather StatementRIWBig Horn44 min
Jun 4, 1:51 PM MDTSpecial Weather StatementRIW24 min
Jun 4, 1:56 PM MDTSpecial Weather StatementRIWJohnson19 min
Jun 4, 2:05 PM MDTSpecial Weather StatementRIWJohnson40 min
Jun 4, 2:17 PM MDTSpecial Weather StatementRIWBig Horn43 min
Jun 4, 2:20 PM MDTSevere Thunderstorm WarningRIWFremont40 min
Jun 4, 2:27 PM MDTSpecial Weather StatementRIWJohnson63 min
Jun 4, 2:36 PM MDTSevere Thunderstorm WarningRIWJohnson54 min
Jun 4, 2:50 PM MDTSpecial Weather StatementRIWTeton55 min
Jun 4, 3:01 PM MDTSpecial Weather StatementRIWBig Horn44 min
Jun 4, 3:20 PM MDTSpecial Weather StatementRIWBig Horn40 min
Jun 4, 3:28 PM MDTSevere Thunderstorm WarningRIWJohnson33 min
Jun 4, 3:30 PM MDTSpecial Weather StatementRIW45 min
Jun 4, 3:49 PM MDTSpecial Weather StatementRIWTeton41 min
Jun 4, 4:32 PM MDTSpecial Weather StatementRIWHot Springs43 min
Jun 4, 5:12 PM MDTSevere Thunderstorm WarningRIWHot Springs, Washakie23 min

Nearby

Tornado Warnings in Wyoming, 2014Every tornado warning in 2014Tornadoes in 2014

Sources

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.