Alert archive / Wyoming / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 21, NWS Riverton, WY

June 14, 2006Park County, Wyoming

NWS Riverton, WY issued this severe thunderstorm warning at Jun 14, 2006, 11:28 AM MDT for Park County, Wyoming. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 14, 2006, 11:28 AM MDT (17:28 UTC)
Expired
Jun 14, 2006, 12:15 PM MDT
In force
47 min
Issued by
NWS Riverton, WY
Area
Counties, with a storm outline in the text

County Park County, WY

The radar

The Riverton/Lander radar (KRIW), 129 km from the middle of the area, began a volume at 17:27 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 14, 11:05 AM MDTTornado WatchSPC6 hr

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 5.5 hours before the alert went out and 130 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 2006-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2006-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2802 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
310 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.

000 
WUUS55 KRIW 141729
SVRRIW
WYC029-141815-
/O.NEW.KRIW.SV.W.0021.060614T1728Z-060614T1815Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
1128 AM MDT WED JUN 14 2006

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL PARK COUNTY IN NORTHWEST WYOMING...

* UNTIL 1215 PM MDT

* AT 1122 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR   
  STATE HWY 120 MILE MARKER 50...OR NEAR MEETEETSE...AND MOVING      
 NORTHEAST AT 45 MPH.  SOME REBUILDING IS LIKELY OFF THE ABSAROKAS.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RURAL EASTERN PARK COUNTY AT 1140 AM MDT

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING.
TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM PASSES.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

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

LAT...LON 4408 10907 4404 10888 4424 10860 4451 10869

$$

T. BAKER
1 follow-up statement
000 
WWUS55 KRIW 141751
SVSRIW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
1150 AM MDT WED JUN 14 2006

WYC029-141815-
/O.CON.KRIW.SV.W.0021.000000T0000Z-060614T1815Z/
PARK WY-
1150 AM MDT WED JUN 14 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
PARK COUNTY UNTIL 1215 PM MDT...

AT 1142 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR 
MEETEETSE...OR ABOUT 28 MILES SOUTH OF CODY. THIS STORM WAS MOVING 
NORTHEAST AT 10 MPH...AND CONTINUES TO REFORM OFF THE ABSAROKAS.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MEETEETSE AND STATE HWY 120 MILE MARKER 60 BY 1215 PM MDT...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS...LARGE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING.
TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM PASSES.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM MDT WEDNESDAY EVENING
FOR NORTHWESTERN WYOMING.

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

LAT...LON 4408 10907 4404 10888 4424 10860 4451 10869

$$

T. BAKER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 4:31 AM MDTRed Flag WarningRIWFremont, Natrona, Sweetwater13 hr
Jun 14, 9:54 AM MDTSevere Thunderstorm WarningRIWLincoln21 min
Jun 14, 10:15 AM MDTSevere Thunderstorm WarningRIWTeton60 min
Jun 14, 10:24 AM MDTSevere Thunderstorm WarningRIWTeton66 min
Jun 14, 11:19 AM MDTSevere Thunderstorm WarningRIWPark26 min
Jun 14, 11:34 AM MDTSevere Thunderstorm WarningRIWTeton20 min
Jun 14, 12:10 PM MDTSevere Thunderstorm WarningRIWPark31 min
Jun 14, 12:25 PM MDTTornado WarningRIWBig Horn, Park50 min
Jun 14, 12:59 PM MDTSevere Thunderstorm WarningRIWBig Horn46 min
Jun 14, 1:09 PM MDTTornado WarningRIWBig Horn51 min
Jun 14, 1:11 PM MDTSevere Thunderstorm WarningRIWBig Horn32 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2006Every severe thunderstorm warning in 2006

Sources

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.