Alert archive / Nebraska / Wind Advisories in 2012

Wind Advisory 24, NWS North Platte, NE

April 27, 20126 counties in Nebraska

NWS North Platte, NE issued this wind advisory at Apr 27, 2012, 1:21 PM MDT for 6 counties in Nebraska. It took effect at Apr 27, 2012, 2:00 PM MDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Apr 27, 2012, 1:21 PM MDT (19:21 UTC)
In effect from
Apr 27, 2012, 2:00 PM MDT
Expired
Apr 27, 2012, 8:00 PM MDT
In force
6 hr
Issued by
NWS North Platte, NE

Counties Chase County, NE, Deuel County, NE, Garden County, NE, Keith County, NE, Perkins County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 140 km from the middle of the area, began a volume at 19:21 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 12:00Z, 7.4 hours before the alert went out and 120 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 12:00Z on 2012-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 12:00Z on 2012-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 441 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
441 m²/s²
0-3 km storm-relative helicity
540 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.

815 
WWUS73 KLBF 271921
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
221 PM CDT FRI APR 27 2012

...STRONG NORTHWEST WINDS DEVELOPING THIS AFTERNOON OVER PORTIONS
OF WESTERN NEBRASKA...

.A COLD FRONT IS PUSHING ACROSS WESTERN NEBRASKA THIS AFTERNOON.
BEHIND THE FRONT STRONG NORTHWEST WINDS CAN BE EXPECTED...MAINLY
OVER THE EASTERN PANHANDLE AND PORTIONS OF SOUTHWEST NEBRASKA.
THE WINDS WILL PERSIST INTO THE EARLY EVENING HOURS BEFORE
DIMINISHING.

NEZ004-022-056>058-069-280200-
/O.NEW.KLBF.WI.Y.0024.120427T2000Z-120428T0200Z/
SHERIDAN-GARDEN-DEUEL-KEITH-PERKINS-CHASE-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...OSHKOSH...
CHAPPELL...BIG SPRINGS...OGALLALA...GRANT...IMPERIAL
121 PM MDT FRI APR 27 2012

...WIND ADVISORY IN EFFECT UNTIL 8 PM MDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM MDT THIS EVENING. 

* TIMING: STRONG NORTHWEST WINDS WILL DEVELOP THIS AFTERNOON AND
  PERSIST INTO THE EARLY EVENING HOURS.

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

* IMPACTS: DRIVERS OF LIGHTWEIGHT OR HIGH PROFILE VEHICLES SHOULD
  EXERCISE CAUTION AND BE PREPARED FOR STRONG 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.

&&

$$

MASEK
1 follow-up statement
148 
WWUS73 KLBF 280210
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
910 PM CDT FRI APR 27 2012

...WIND ADVISORY ALLOWED TO EXPIRE...

.LOW PRESSURE CONTINUES TO MOVE EAST AWAY FROM WESTERN NEBRASKA
AND WINDS HAVE SUBSIDED OVER WESTERN NEBRASKA. THE WIND ADVISORY
HAS BEEN ALLOWED TO EXPIRE.

NEZ004-022-056>058-069-280315-
/O.EXP.KLBF.WI.Y.0024.000000T0000Z-120428T0200Z/
SHERIDAN-GARDEN-DEUEL-KEITH-PERKINS-CHASE-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...OSHKOSH...
CHAPPELL...BIG SPRINGS...OGALLALA...GRANT...IMPERIAL
810 PM MDT FRI APR 27 2012

...WIND ADVISORY HAS EXPIRED...

THE WIND ADVISORY IS NO LONGER IN EFFECT. 

WINDS HAVE DROPPED BELOW ADVISORY CRITERIA AND THE WIND ADVISORY
HAS BEEN ALLOWED TO EXPIRE.

$$

Nearby

Wind Advisories in Nebraska, 2012Every wind advisory in 2012

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.