Alert archive / Nebraska / Wind Advisories in 2012

Wind Advisory 7, NWS North Platte, NE

February 20, 20125 counties in Nebraska

NWS North Platte, NE issued this wind advisory at Feb 20, 2012, 8:59 AM MST for 5 counties in Nebraska. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Feb 20, 2012, 8:59 AM MST (15:59 UTC)
Expired
Feb 20, 2012, 4:13 PM MST
In force
7 hr
Issued by
NWS North Platte, NE

Counties Chase County, NE, Deuel County, NE, Hayes County, NE, Keith County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 155 km from the middle of the area, began a volume at 15:58 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, 4.0 hours before the alert went out and 96 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 2012-02-20Temperature 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 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 2012-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
549 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
189 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.

900 
WWUS73 KLBF 201559
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
959 AM CST MON FEB 20 2012

...LOW PRESSURE SYSTEM BRINGS LIGHT SNOW AND GUSTY WINDS TODAY...

.A STRONG LOW PRESSURE SYSTEM IS MOVING ACROSS THE HIGH PLAINS
TODAY. NORTHWEST WINDS 25 TO 35 WITH GUSTS TO 45 MPH WILL DEVELOP
OVER FAR SOUTHWEST NEBRASKA THIS MORNING AND CONTINUE THROUGH THE
AFTERNOON. IN ADDITION TO THE GUSTY WINDS...LIGHT SNOW CAN ALSO BE
EXPECTED. LOCALLY REDUCED VISIBILITIES TO LESS THAN A MILE FROM
SNOW AND BLOWING SNOW WILL BE POSSIBLE.

NEZ056>058-069-070-210000-
/O.NEW.KLBF.WI.Y.0007.120220T1559Z-120221T0000Z/
DEUEL-KEITH-PERKINS-CHASE-HAYES-
INCLUDING THE CITIES OF...CHAPPELL...BIG SPRINGS...OGALLALA...
GRANT...IMPERIAL...HAYES CENTER
959 AM CST MON FEB 20 2012 /859 AM MST MON FEB 20 2012/

...WIND ADVISORY IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS
EVENING. 

* TIMING: GUSTY NORTHWEST WINDS WILL CONTINUE THROUGH THIS
  AFTERNOON.

* WINDS: NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* IMPACTS: LIGHT SNOW CAN BE EXPECTED ALONG WITH THE GUSTY WINDS.
  THIS WILL CAUSE LOCALLY REDUCED VISIBILITIES FROM BLOWING SNOW.
  THE STRONG WIND GUSTS MAY MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR PERSONS DRIVING LIGHTWEIGHT OR HIGH PROFILE VEHICLES.
  MOTORISTS SHOULD EXERCISE CAUTION WHEN TRAVELING AND BE PREPARED
  FOR STRONG CROSS WINDS AND REDUCED VISIBILITIES.


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
2 follow-up statements
778 
WWUS73 KLBF 202137
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
337 PM CST MON FEB 20 2012

...LOW PRESSURE SYSTEM BRINGS LIGHT SNOW AND GUSTY WINDS EARLY
THIS EVENING...

.A STRONG LOW PRESSURE SYSTEM IS MOVING ACROSS THE HIGH PLAINS
TODAY. NORTHWEST WINDS 25 TO 35 WITH GUSTS TO 45 MPH WILL CONTINUE
ACROSS FAR SOUTHWEST NEBRASKA THROUGH EARLY EVENING. IN ADDITION
TO THE GUSTY WINDS...LOCALLY LIGHT SNOW CAN ALSO BE EXPECTED.
LOCALLY REDUCED VISIBILITIES TO LESS THAN A MILE FROM SNOW AND
BLOWING SNOW WILL BE POSSIBLE.

NEZ056>058-069-070-210000-
/O.CON.KLBF.WI.Y.0007.000000T0000Z-120221T0000Z/
DEUEL-KEITH-PERKINS-CHASE-HAYES-
INCLUDING THE CITIES OF...CHAPPELL...BIG SPRINGS...OGALLALA...
GRANT...IMPERIAL...HAYES CENTER
337 PM CST MON FEB 20 2012 /237 PM MST MON FEB 20 2012/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS
EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST /5 PM MST/ THIS
EVENING. 

* TIMING: GUSTY NORTHWEST WINDS WILL CONTINUE THROUGH EARLY THIS
  EVENING.

* WINDS: NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* IMPACTS: LOCALLY LIGHT SNOW CAN BE EXPECTED ALONG WITH THE GUSTY
  NORTHWEST WINDS. THIS WILL CAUSE LOCAL AREAS TO SEE REDUCED
  VISIBILITIES FROM BLOWING SNOW. THE STRONG WIND GUSTS MAY MAKE
  DRIVING DIFFICULT...ESPECIALLY FOR PERSONS DRIVING LIGHTWEIGHT
  OR HIGH PROFILE VEHICLES. MOTORISTS SHOULD EXERCISE CAUTION WHEN
  TRAVELING AND BE PREPARED FOR STRONG CROSS WINDS AND REDUCED
  VISIBILITIES.

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
421 
WWUS73 KLBF 202313
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
513 PM CST MON FEB 20 2012

NEZ056>058-069-070-210015-
/O.CAN.KLBF.WI.Y.0007.000000T0000Z-120221T0000Z/
DEUEL-KEITH-PERKINS-CHASE-HAYES-
INCLUDING THE CITIES OF...CHAPPELL...BIG SPRINGS...OGALLALA...
GRANT...IMPERIAL...HAYES CENTER
513 PM CST MON FEB 20 2012 /413 PM MST MON FEB 20 2012/

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS CANCELLED THE
WIND ADVISORY. 

NORTHWEST WINDS OF 15 TO 30 MPH WILL CONTINUE TO DIMINISH 
THROUGH SUNSET.

$$

KAR

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.