Alert archive / Wyoming / High Wind Warnings in 2015

High Wind Warning 2, NWS Cheyenne, WY

January 7, 20154 counties in Wyoming

NWS Cheyenne, WY issued this high wind warning at Jan 7, 2015, 1:10 PM MST for 4 counties in Wyoming. It took effect at Jan 7, 2015, 9:00 PM MST. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 7, 2015, 1:10 PM MST (20:10 UTC)
In effect from
Jan 7, 2015, 9:00 PM MST
Expired
Jan 8, 2015, 4:55 AM MST
In force
8 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 20:15 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

Riverton, WY (KRIW), launched 12:00Z, 8.2 hours before the alert went out and 278 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 2015-01-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 2015-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 318 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
527 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
318 m²/s²
0-3 km storm-relative helicity
235 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.

046 
WWUS75 KCYS 072010
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
110 PM MST WED JAN 7 2015

...STRONG WINDS ARE EXPECTED FOR WIND PRONE AREAS TONIGHT AND
EARLY THURSDAY MORNING...

.THE SURFACE PRESSURE GRADIENT WILL RAPIDLY STRENGTHEN ACROSS
SOUTHEAST WYOMING THIS EVENING WITH STRONG WINDS DEVELOPING FOR
THE WIND PRONE AREAS TONIGHT AND EARLY THURSDAY MORNING. WINDS
WILL INCREASE THROUGH THE ARLINGTON AREA BY LATE EVENING...THEN
SPREAD TO THE BORDEAUX AREA THROUGH THE OVERNIGHT PERIOD.

WYZ106-110-081200-
/O.UPG.KCYS.HW.A.0003.150108T0400Z-150108T1500Z/
/O.NEW.KCYS.HW.W.0002.150108T0400Z-150108T1500Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...BORDEAUX...ARLINGTON...ELK MOUNTAIN
110 PM MST WED JAN 7 2015

...HIGH WIND WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MST
THURSDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* TIMING...WINDS WILL INCREASE AFTER SUNSET AND BECOME STRONG
  FIRST THROUGH THE ARLINGTON AREA...SPREADING TO THE BORDEAUX
  AREA. THE STRONGEST WINDS WILL MOST LIKELY OCCUR DURING THE
  OVERNIGHT HOURS.

* WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO NEAR 60
  MPH.

* IMPACTS...TRAVEL ON INTERSTATE 80 BETWEEN WALCOTT JUNCTION AND
  LARAMIE AS WELL AS INTERSTATE 25 SOUTH OF WHEATLAND NEAR
  BORDEAUX COULD BE IMPACTED. STRONG CROSS WINDS MAY CAUSE
  BLOWOVERS OF HIGH PROFILE AND LIGHT WEIGHT VEHICLES.

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.

&&

$$

JAMSKI
2 follow-up statements
381 
WWUS75 KCYS 081001
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
301 AM MST THU JAN 8 2015


WYZ106-110-081500-
/O.CON.KCYS.HW.W.0002.000000T0000Z-150108T1500Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...BORDEAUX...ARLINGTON...ELK MOUNTAIN
301 AM MST THU JAN 8 2015

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING...

* TIMING...WINDS WILL REMAIN STRONG THROUGH THE ARLINGTON AREA.
  THE STRONGEST WINDS WILL MOST LIKELY OCCUR JUST BEFORE SUNRISE
  THIS MORNING.

* WINDS...WEST TO SOUTHWEST 35 TO 45 MPH WITH GUSTS TO NEAR 60 
  MPH. 

* IMPACTS...TRAVEL ON INTERSTATE 80 BETWEEN WALCOTT JUNCTION AND 
  LARAMIE AS WELL AS INTERSTATE 25 SOUTH OF WHEATLAND NEAR 
  BORDEAUX COULD BE IMPACTED. STRONG CROSS WINDS MAY CAUSE 
  BLOWOVERS OF HIGH PROFILE AND LIGHT WEIGHT VEHICLES. 

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.

&&

$$
916 
WWUS75 KCYS 081155
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
455 AM MST THU JAN 8 2015


WYZ106-110-081300-
/O.CAN.KCYS.HW.W.0002.000000T0000Z-150108T1500Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-
INCLUDING THE CITIES OF...BORDEAUX...ARLINGTON...ELK MOUNTAIN
455 AM MST THU JAN 8 2015

...HIGH WIND WARNING IS CANCELLED...

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

WESTERLY WINDS HAVE SUBSIDED EARLY THIS MORNING AS AN ARCTIC FRONT
ACROSS MONTANA IS MOVING SOUTH INTO WYOMING. WINDS WILL
OCCASIONALLY GUST UP TO 40 MPH BEFORE BECOMING NORTHERLY THIS 
AFTERNOON.  

$$

TT

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 7, 3:13 AM MSTHigh Wind WatchCYSAlbany, Carbon, Laramie, Platte10 hr

Nearby

High Wind Warnings in Wyoming, 2015Every high wind warning in 2015

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.