Alert archive / Nebraska / Wind Advisories in 2008

Wind Advisory 13, NWS Cheyenne, WY

April 30, 20086 counties in Nebraska

NWS Cheyenne, WY issued this wind advisory at Apr 30, 2008, 7:08 PM MDT for 6 counties in Nebraska. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Apr 30, 2008, 7:08 PM MDT (01:08 UTC)
Expired
Apr 30, 2008, 10:35 PM MDT
In force
3 hr
Issued by
NWS Cheyenne, WY

Counties Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE

The radar

The Cheyenne radar (KCYS), 131 km from the middle of the area, began a volume at 01:12 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, 1.1 hours before the alert went out and 196 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 2008-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 112 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, Denver, CO at 00:00Z on 2008-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
112 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
4708 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
31 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 
WWUS75 KCYS 010108
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
708 PM MDT WED APR 30 2008

...STRONG NORTH WINDS ACCOMPANYING COLD FRONTAL PASSAGE AS STRONG
SPRING STORM MOVES INTO THE AREA...

.A STRONG SPRING STORM IS BEGINNING TO AFFECT THE NEBRASKA
PANHANDLE TONIGHT. THE FIRST COMPONENT OF THIS STORM SYSTEM IS THE
INITIAL PASSAGE OF A COLD FRONT...AND THIS IS CREATING STRONG AND
GUSTY WINDS ACROSS THE AREA THIS EVENING. STRONG WINDS WILL
REDEVELOP WITH WIDESPREAD PRECIPITATION THURSDAY THROUGH FRIDAY
AFTER WEAKENING SLIGHTLY OVERNIGHT TONIGHT.

NEZ003-019>021-054-055-010600-
/O.NEW.KCYS.WI.Y.0013.080501T0108Z-080501T0600Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY
708 PM MDT WED APR 30 2008

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT. 

A BRIEF PERIOD OF NORTH WINDS RANGING FROM 25 TO 35 MPH WITH GUSTS
TO AROUND 40 MPH WILL CONTINUE ACROSS THE CENTRAL AND SOUTHERN
NEBRASKA PANHANDLE ALONG AND BEHIND THE COLD FRONTAL PASSAGE
THROUGH AROUND MIDNIGHT. WIND SPEEDS WILL THEN DECREASE SLIGHTLY
AND SHIFT TO THE NORTHWEST OVERNIGHT. EXPECT WIDESPREAD COLD RAIN
TO ALSO DEVELOP OVERNIGHT...MIXING WITH AND THEN CHANGING OVER
TO SNOW BY AROUND SUNRISE.

NORTHWEST WINDS ARE EXPECTED TO INCREASE AGAIN DURING THE DAY
THURSDAY AND CONTINUE THROUGH FRIDAY. THIS IS EXPECTED TO CREATE
AREAS WITH RESTRICTED VISIBILITY DUE TO BLOWING SNOW.

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH ARE
EXPECTED TO LAST LONGER THAN ONE HOUR...OR ANY GUSTS TO 45 MPH OR
GREATER ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.

$$

CARPENTER
1 follow-up statement
000 
WWUS75 KCYS 010435
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1035 PM MDT WED APR 30 2008

NEZ003-019>021-054-055-010545-
/O.CAN.KCYS.WI.Y.0013.000000T0000Z-080501T0600Z/
BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
INCLUDING THE CITIES OF...ALLIANCE...SCOTTSBLUFF...GERING...
HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY
1035 PM MDT WED APR 30 2008

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE WIND
ADVISORY. 

STRONG NORTH WINDS HAVE DECREASED TO BELOW ADVISORY CRITERIA
ACROSS CENTRAL AND SOUTHERN PORTIONS OF THE NEBRASKA PANHANDLE
THIS EVENING...AND THEREFORE THE WIND ADVISORY HAS BEEN CANCELLED.

NORTHWEST WINDS ARE EXPECTED TO REDEVELOP DURING THE DAY THURSDAY AND
CONTINUE THROUGH FRIDAY. THIS IS EXPECTED TO CREATE AREAS WITH
RESTRICTED VISIBILITY DUE TO BLOWING SNOW.

$$

CARPENTER

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 5:26 AM MDTWind AdvisoryCYSBanner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 1 more14 hr
May 1, 5:41 AM MDTSnow and Blowing Snow AdvisoryCYSBox Butte, Dawes37 hr

Nearby

Wind Advisories in Nebraska, 2008Every wind advisory in 2008

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.