Alert archive / Nebraska / Wind Advisories in 2014

Wind Advisory 13, NWS Cheyenne, WY

April 30, 20148 counties in Nebraska

NWS Cheyenne, WY issued this wind advisory at Apr 30, 2014, 3:45 AM MDT for 8 counties in Nebraska. It took effect at Apr 30, 2014, 9:00 AM MDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Apr 30, 2014, 3:45 AM MDT (09:45 UTC)
In effect from
Apr 30, 2014, 9:00 AM MDT
Expired
Apr 30, 2014, 6:00 PM MDT
In force
9 hr
Issued by
NWS Cheyenne, WY

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

The radar

The Cheyenne radar (KCYS), 142 km from the middle of the area, began a volume at 09:42 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.8 hours before the alert went out and 246 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, N. Platte/Lee Bi, NE at 00:00Z on 2014-04-30Temperature 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, N. Platte/Lee Bi, NE at 00:00Z on 2014-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 square meters per square second.193958Sfc1 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
617 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
49 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.

271 
WWUS75 KCYS 300945
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
345 AM MDT WED APR 30 2014

...MODERATE WINDS EXPECTED FOR THE NEBRASKA PANHANDLE TODAY...

.THE POTENT SPRING STORM SYSTEM WILL CONTINUE TO SLOWLY MOVE EAST
TODAY...WITH THE SURFACE PRESSURE GRADIENT STEADILY WEAKENING AS
IT MOVES EAST. AS A RESULT...WINDY CONDITIONS WILL RETURN TO THE
WESTERN NEBRASKA PANHANDLE TODAY...WITH A STEADY DECLINE OF WIND
SPEEDS THIS EVENING AND FOR THURSDAY.

NEZ002-003-019>021-054-055-095-096-010000-
/O.NEW.KCYS.WI.Y.0013.140430T1500Z-140501T0000Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE
345 AM MDT WED APR 30 2014

...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 6 PM MDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO 6 PM MDT
THIS EVENING. 

* TIMING...WINDY CONDITIONS WILL DEVELOP THIS MORNING AND WILL
  CONTINUE THROUGH THE LATE AFTERNOON.

* WINDS...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH.

* IMPACTS...TRAVEL WILL BECOME HAZARDOUS FOR LIGHT OR HIGH PROFILE
  VEHICLES DUE TO GUSTY CROSSWINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

RJM
2 follow-up statements
164 
WWUS75 KCYS 302057
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
257 PM MDT WED APR 30 2014

...WINDS TO DECREASE ACROSS THE NEBRASKA PANHANDLE THIS EVENING...

.THE STORM SYSTEM OVER THE PLAINS WILL CONTINUE TO SLOWLY MOVE
EAST TODAY AND TONIGHT. THE SURFACE PRESSURE GRADIENT WILL
STEADILY DECREASE AS IT MOVES EAST...RESULTING IN A DECLINE OF
WIND SPEEDS THIS EVENING.

NEZ002-003-019>021-054-055-095-096-010000-
/O.CON.KCYS.WI.Y.0013.000000T0000Z-140501T0000Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE
257 PM MDT WED APR 30 2014

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING. 

* TIMING...WINDS WILL SUBSIDE THIS EVENING.

* WINDS...NORTHWEST 25 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH.

* IMPACTS...TRAVEL WILL BE HAZARDOUS FOR LIGHT OR HIGH PROFILE
  VEHICLES DUE TO GUSTY CROSSWINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
164 
WWUS75 KCYS 302345
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
545 PM MDT WED APR 30 2014

...WIND ADVISORY TO EXPIRE AT 6 PM...

NEZ002-003-019>021-054-055-095-096-010045-
/O.EXP.KCYS.WI.Y.0013.000000T0000Z-140501T0000Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE
545 PM MDT WED APR 30 2014

...WIND ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING...

THE WIND ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING. 

WINDS ACROSS THE NEBRASKA PANHANDLE HAVE SHOWN SIGNS OF DECREASING
LATE THIS AFTERNOON AND FORECAST GUIDANCE SUGGESTS THESE WINDS
WILL CONTINUE TO DECREASE SHORTLY AFTER 6 PM THIS EVENING. HAVE
THEREFORE DECIDED TO LET THE WIND ADVISORY EXPIRE ON TIME AT 6 PM
THIS EVENING. IT WILL STILL BE WINDY...ESPECIALLY ACROSS THE
SOUTHERN PANHANDLE AT PLACES LIKE SCOTTSBLUFF...KIMBALL AND SIDNEY
FOR A TIME EARLY THIS EVENING. EXPECT NORTH TO NORTHWEST WINDS AT
THESE LOCATIONS TO SEE SUSTAINED WINDS OF 20 TO 25 MPH WITH GUSTS
TO 40 MPH THROUGH 8 PM THIS EVENING BEFORE THEY FINALLY EASE.
WIDESPREAD ADVISORY LEVEL WINDS ARE NOT EXPECTED.

$$

Nearby

Wind Advisories in Nebraska, 2014Every wind advisory in 2014

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.