Alert archive / Wyoming / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 21, NWS Riverton, WY

June 16, 2005Teton County, Wyoming

NWS Riverton, WY issued this severe thunderstorm warning at Jun 16, 2005, 1:11 PM MDT for Teton County, Wyoming. It was in force for 45 min. 2 reports 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 16, 2005, 1:11 PM MDT (19:11 UTC)
Expired: Jun 16, 2005, 1:56 PM MDT
In force: 45 min
Issued by: NWS Riverton, WY
Area: Counties, with a storm outline in the text

County Teton County, WY

The radar

The Pocatello radar (KSFX), 165 km from the middle of the area, began a volume at 19:13 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

Time	Report	Where	Remark
Jun 16, 1:30 PM MDT	HAIL 1.75	Jackson, WY
Jun 16, 1:36 PM MDT	HAIL 0.75	4 N Jackson, WY

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, 7.2 hours before the alert went out and 193 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2493 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 33 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 161912
SVRRIW
WYC039-162000-
/O.NEW.KRIW.SV.W.0021.050616T1911Z-050616T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RIVERTON WY
111 PM MDT THU JUN 16 2005

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL TETON COUNTY IN NORTHWEST WYOMING
  THIS INCLUDES THE CITY OF JACKSON

* UNTIL 200 PM MDT

* AT 106 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR HOBACK JUNCTION...OR ABOUT 11 MILES SOUTH OF
  JACKSON...AND MOVING NORTH AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  U.S. HWY 26/89 MILE MARKER 150 BY 120 PM MDT
  JACKSON BY 130 PM MDT
  U.S. HWY 26/89 MILE MARKER 160 BY 140 PM MDT
  KELLY BY 150 PM MDT
  MOOSE BY 155 PM MDT
  U.S. HWY 26/88 MILE MARKER 170 BY 200 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.

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

LAT...LON 4323 11080 4323 11061 4389 11050 4390 11087

$$

FARMER

2 follow-up statements

000 
WWUS55 KRIW 161933
SVSRIW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
133 PM MDT THU JUN 16 2005

WYC039-162000-
/O.CON.KRIW.SV.W.0021.000000T0000Z-050616T2000Z/
TETON WY-
133 PM MDT THU JUN 16 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES FOR SOUTH CENTRAL TETON
COUNTY UNTIL 200 PM MDT...

AT 124 PM MDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM CAPABLE OF
PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE.  THIS STORM WAS
LOCATED NEAR U.S. HWY 26/89 MILE MARKER 150...OR ABOUT NEAR
JACKSON...MOVING NORTH AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  U.S. HWY 26/89 MILE MARKER 160 BY 145 PM MDT
  GROS VENTRE JCT BY 150 PM MDT
  KELLY BY 155 PM MDT
  MOOSE BY 200 PM MDT

ALSO A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT 
THURSDAY EVENING FOR SOUTH CENTRAL MONTANA AND NORTHWESTERN WYOMING.

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

LAT...LON 4323 11080 4323 11061 4389 11050 4390 11087

$$

000 
WWUS55 KRIW 161956
SVSRIW

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RIVERTON WY
156 PM MDT THU JUN 16 2005

WYC039-162006-
/O.CAN.KRIW.SV.W.0021.000000T0000Z-050616T2000Z/
TETON WY-
156 PM MDT THU JUN 16 2005

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL TETON COUNTY IS
CANCELLED...

THE STORM HAS DECREASED IN INTENSITY AND IS NO LONGER SEVERE.
THEREFORE...THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM MDT
THURSDAY EVENING FOR SOUTH CENTRAL MONTANA AND NORTHWESTERN WYOMING.

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

LAT...LON 4323 11080 4323 11061 4389 11050 4390 11087

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 1:51 PM MDT	Severe Thunderstorm Warning	RIW	Lincoln, Teton	22 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 2005 Every severe thunderstorm warning in 2005

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.