Alert archive / Wyoming / High Wind Warnings in 2011

High Wind Warning 50, NWS Cheyenne, WY

November 18, 2011Albany County, Laramie County, Wyoming

NWS Cheyenne, WY issued this high wind warning at Nov 18, 2011, 7:46 PM MST for Albany County, Laramie County, Wyoming. It took effect at Nov 19, 2011, 3:00 AM MST. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 18, 2011, 7:46 PM MST (02:46 UTC)
In effect from
Nov 19, 2011, 3:00 AM MST
Expired
Nov 19, 2011, 4:04 AM MST
In force
64 min
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 50 km from the middle of the area, began a volume at 02:47 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 nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 2.8 hours before the alert went out and 245 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, Denver, CO at 00:00Z on 2011-11-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Denver, CO at 00:00Z on 2011-11-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4093 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
65 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.

562 
WWUS75 KCYS 190246
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
746 PM MST FRI NOV 18 2011

...STRONG WINDS WILL DEVELOP OVER THE SOUTHERN LARAMIE RANGE LATE 
TONIGHT THROUGH SATURDAY MORNING...

.WEST WINDS WILL BECOME STRONG AFTER MIDNIGHT OVER THE SOUTHERN
LARAMIE RANGE AND CONTINUE THROUGH SATURDAY MORNING. THE STRONG
WINDS WILL OCCUR BEHIND A PACIFIC STORM SYSTEM WHICH WILL MOVE
ACROSS THE CENTRAL ROCKIES. WIND GUSTS AS HIGH AS 60 MPH CAN BE
EXPECTED LATE TONIGHT THROUGH EARLY AFTERNOON SATURDAY. WINDS WILL
GRADUALLY DECREASE SATURDAY AFTERNOON.

WYZ116-117-191500-
/O.UPG.KCYS.HW.A.0028.111119T1000Z-111119T2000Z/
/O.NEW.KCYS.HW.W.0050.111119T1000Z-111119T1900Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER
746 PM MST FRI NOV 18 2011

...HIGH WIND WARNING IN EFFECT FROM 3 AM TO NOON MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 3 AM TO NOON MST SATURDAY. THE
HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* TIMING...3 AM THROUGH NOON SATURDAY.

* WINDS...SUSTAINED WEST WINDS WILL BE AT 35 TO 45 MPH WITH GUSTS
  TO 60 MPH.

* IMPACTS...TRAVEL WILL BE DIFFICULT FOR THOSE WITH LIGHTWEIGHT OR
  HIGH PROFILE VEHICLES ON INTERSTATES 80 OVER THE SOUTHERN
  LARAMIE RANGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD
AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1.

&&

$$

HAHN
1 follow-up statement
062 
WWUS75 KCYS 191104
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
404 AM MST SAT NOV 19 2011

...THREAT FOR HIGH WINDS HAS DIMINISHED THIS MORNING...

.STRONG WINDS ARE NO LONGER EXPECTED THIS MORNING. THE COLD FRONT
WHICH WAS RESPONSIBLE FOR SOME GUSTY WINDS OVERNIGHT HAS MOVED
EAST OF THE AREA AND NO LONGER POSES A WIND THREAT.

WYZ116-117-191215-
/O.CAN.KCYS.HW.W.0050.000000T0000Z-111119T1900Z/
SOUTH LARAMIE RANGE-SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...VEDAUWOO...BUFORD...PUMPKIN VINE...
HORSE CREEK...HARRIMAN...WHITAKER
404 AM MST SAT NOV 19 2011

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE HIGH
WIND WARNING. 

STRONG WINDS ARE NO LONGER EXPECTED THIS MORNING.

$$

Nearby

High Wind Warnings in Wyoming, 2011Every high wind warning in 2011

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.