Alert archive / Wyoming / Severe Thunderstorm Warnings in 2006
Severe Thunderstorm Warning 21, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at May 31, 2006, 1:14 PM MDT for Laramie County, Wyoming. It was in force for 61 min. 5 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
- May 31, 2006, 1:14 PM MDT (19:14 UTC)
- Expired
- May 31, 2006, 2:15 PM MDT
- In force
- 61 min
- Issued by
- NWS Cheyenne, WY
- Area
- Counties, with a storm outline in the text
County Laramie County, WY
The radar
The Cheyenne radar (KCYS), 19 km from the middle of the area, began a volume at 19:16 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 |
|---|---|---|---|
| May 31, 1:15 PM MDT | HAIL 0.75 | 18 Wnw Cheyenne, WY | HAIL FELL 115-130 PM COVERING GROUND ABOUT 3 INCHES DEEP. |
| May 31, 1:38 PM MDT | HAIL 1.25 | 2 W Cheyenne, WY | |
| May 31, 1:46 PM MDT | HAIL 1.25 | 6 W Cheyenne, WY | |
| May 31, 1:46 PM MDT | HAIL 1.75 | 6 W Cheyenne, WY | |
| May 31, 1:51 PM MDT | HAIL 0.5 | 3 W Cheyenne, WY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 7.2 hours before the alert went out and 213 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.
- Mixed-layer CAPE
- 28 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KCYS 311916 SVRCYS WYC021-312015- /O.NEW.KCYS.SV.W.0021.060531T1914Z-060531T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 114 PM MDT WED MAY 31 2006 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL LARAMIE COUNTY IN SOUTHEAST WYOMING... THIS INCLUDES THE CITY OF CHEYENNE... * UNTIL 215 PM MDT * AT 111 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED 6 MILES SOUTH OF FEDERAL...OR ABOUT 17 MILES WEST OF CHEYENNE...AND MOVING EAST AT 10 MPH. THIS STORM HAS A HISTORY OF PRODUCING PENNY TO NICKEL SIZED HAIL AND HEAVY RAIN. THIS WARNING REPLACES THE PREVIOUSLY ISSUED WARNING FOR WEST CENTRAL LARAMIE COUNTY * THE SEVERE THUNDERSTORM WILL BE NEAR... 6 MILES SOUTH OF FEDERAL BY 120 PM MDT... WARREN AF BASE BY 210 PM MDT... NORTH CHEYENNE AND 7 MILES NORTHWEST OF CHEYENNE BY 215 PM MDT... LAT...LON 4134 10518 4110 10521 4106 10475 4130 10473 $$ WEILAND
3 follow-up statements
000
WWUS55 KCYS 311929
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
128 PM MDT WED MAY 31 2006
WYC021-312015-
/O.CON.KCYS.SV.W.0021.000000T0000Z-060531T2015Z/
LARAMIE WY-
128 PM MDT WED MAY 31 2006
...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 215 PM MDT FOR
CENTRAL LARAMIE COUNTY...
AT 126 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS STORM WAS
LOCATED NEAR I-80 MM 348...OR ABOUT 12 MILES WEST OF
CHEYENNE...MOVING EAST AT 10 TO 15 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
WARREN AF BASE BY 205 PM MDT...
CHEYENNE...SOUTH GREELEY HIGHWAY...FOX FARM-COLLEGE AND 6 MILES
SOUTHWEST OF NORTH CHEYENNE BY 215 PM MDT...
HAIL UP TO 3/4 OF AN INCH IN DIAMETER HAS BEEN REPORTED IN 13 MILES
WEST OF CHEYENNE WITH THIS STORM. IF YOU ARE IN THE PATH OF THE
STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.
LAT...LON 4134 10518 4110 10521 4106 10475 4125 10476
4130 10473
$$000
WWUS55 KCYS 311950
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
149 PM MDT WED MAY 31 2006
WYC021-312015-
/O.CON.KCYS.SV.W.0021.000000T0000Z-060531T2015Z/
LARAMIE WY-
149 PM MDT WED MAY 31 2006
...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 215 PM MDT FOR
CENTRAL LARAMIE COUNTY...
AT 145 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL
SIZE. THIS STORM WAS LOCATED ABOUT 5 TO 10 MILES WEST OF
CHEYENNE...MOVING EAST AT 15 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
WARREN AF BASE BY 155 PM MDT...
7 MILES SOUTH OF NORTH CHEYENNE BY 205 PM MDT...
FOX FARM-COLLEGE...SOUTH GREELEY HIGHWAY AND CHEYENNE BY 210 PM
MDT...
HAIL UP TO GOLFBALL SIZE WAS REPORTED AT 145 PM AT THE SHERARD WATER
PLANT JUST WEST OF CHEYENNE. IF YOU ARE IN THE PATH OF THE
STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
WEDNESDAY EVENING FOR THE PANHANDLE OF NEBRASKA.
LAT...LON 4132 10500 4108 10506 4106 10475 4125 10476
4130 10473
$$000
WWUS55 KCYS 312004
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
202 PM MDT WED MAY 31 2006
WYC021-312015-
/O.CON.KCYS.SV.W.0021.000000T0000Z-060531T2015Z/
LARAMIE WY-
202 PM MDT WED MAY 31 2006
...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 215 PM MDT FOR
CENTRAL LARAMIE COUNTY...
AT 158 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL. THIS STORM WAS
LOCATED NEAR CHEYENNE...MOVING EAST SOUTHEAST AT 10 TO 15 MPH.
THE SEVERE THUNDERSTORM WILL BE CLIPPING THE WESTERN AND SOUTHERN
PARTS OF CHEYENNE THROUGH 215 PM. ONLY PEA SIZE HAIL HAS BEEN
REPORTED SO FAR IN THE CITY OF CHEYENNE.
HAIL UP TO 3/4 INCH IN DIAMETER HAS BEEN REPORTED AT THE US 85 PORT
OF ENTRY SOUTH OF CHEYENNE WITH THIS STORM. IF YOU ARE IN THE PATH
OF THE STORM...TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
WEDNESDAY EVENING FOR THE PANHANDLE OF NEBRASKA.
LAT...LON 4132 10500 4108 10506 4106 10475 4125 10476
4130 10473
$$The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 12:37 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 38 min |
| May 31, 2:18 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.