Alert archive / Nebraska / Wind Advisories in 2011

Wind Advisory 25, NWS North Platte, NE

October 7, 20114 counties in Nebraska

NWS North Platte, NE issued this wind advisory at Oct 7, 2011, 3:50 AM CDT for 4 counties in Nebraska. It took effect at Oct 7, 2011, 8:00 AM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Oct 7, 2011, 3:50 AM CDT (08:50 UTC)
In effect from
Oct 7, 2011, 8:00 AM CDT
Expired
Oct 7, 2011, 4:01 PM CDT
In force
8 hr
Issued by
NWS North Platte, NE

Counties Brown County, NE, Cherry County, NE, Keya Paha County, NE, Sheridan County, NE

The radar

The North Platte radar (KLNX), 72 km from the middle of the area, began a volume at 08:51 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, 8.8 hours before the alert went out and 163 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 2011-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1031 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2011-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 324 square meters per square second.1939587897117Sfc1 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
1031 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1829 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
324 m²/s²
0-3 km storm-relative helicity
459 m²/s²
Significant tornado parameter
0.4
Supercell composite
13.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

713 
WWUS73 KLBF 070850
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
350 AM CDT FRI OCT 7 2011

...STRONG WINDS OVER NORTHERN NEBRASKA TODAY...

.A STRONG STORM SYSTEM WILL MOVE OUT OF THE CENTRAL ROCKIES DEEPEN AND
MOVE ONTO THE NORTHERN PLAINS TODAY. THIS WILL CREATE A STRONG
PRESSURE GRADIENT OVER WESTERN NEBRASKA WITH STRONG SOUTHWESTERLY
FLOW DEVELOPING THIS MORNING.

NEZ004>006-008-094-072115-
/O.NEW.KLBF.WI.Y.0025.111007T1300Z-111007T2200Z/
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BROWN-WESTERN CHERRY-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE...
SPRINGVIEW...AINSWORTH...CODY...MERRIMAN...KILGORE
350 AM CDT FRI OCT 7 2011 /250 AM MDT FRI OCT 7 2011/

...WIND ADVISORY IN EFFECT FROM 8 AM CDT /7 AM MDT/ THIS MORNING
TO 5 PM CDT /4 PM MDT/ THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 8 AM CDT /7 AM MDT/ THIS
MORNING TO 5 PM CDT /4 PM MDT/ THIS AFTERNOON. 

* TIMING: STRONG SOUTHWESTERLY WINDS WILL DEVELOP THIS MORNING
  OVER NORTHWEST NEBRASKA ALONG AND NORTH OF HIGHWAY 2 FROM
  ELLSWORTH TO THEDFORD AND SPREAD EAST DURING THE DAY.

* WINDS: SOUTHWEST WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH.

* IMPACTS: WINDS THIS STRONG WILL MAKE TRAVEL FOR HIGH PROFILE
  VEHICLES DIFFICULT. 


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.

&&

$$
2 follow-up statements
788 
WWUS73 KLBF 071631
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1131 AM CDT FRI OCT 7 2011

...STRONG WINDS OVER NORTHERN NEBRASKA TODAY...

.WINDS WILL BE STRONG ACROSS NORTHERN NEBRASKA THROUGH THE
AFTERNOON WITH SUSTAINED WINDS OF 25 TO 35 MPH AND GUSTS TO 40
MPH. THESE WINDS ARE ASSOCIATED WITH A STRONG STORM SYSTEM OVER
MONTANA AND THE WESTERN DAKOTAS WHICH WILL LIFT NORTHWARD THROUGH
THE DAY. THIS WILL ALLOW FOR WIND SPEEDS TO DIMINISH LATER THIS
AFTERNOON.

NEZ004>006-008-094-072200-
/O.CON.KLBF.WI.Y.0025.000000T0000Z-111007T2200Z/
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BROWN-WESTERN CHERRY-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE...
SPRINGVIEW...AINSWORTH...CODY...MERRIMAN...KILGORE
1131 AM CDT FRI OCT 7 2011 /1031 AM MDT FRI OCT 7 2011/

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM CDT /4 PM MDT/ THIS
AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM CDT /4 PM MDT/ THIS
AFTERNOON. 

* TIMING: STRONG SOUTHWESTERLY WINDS WILL OCCUR ACROSS NORTHWEST
  NEBRASKA THROUGH LATE THIS AFTERNOON ALONG AND NORTH OF HIGHWAY
  2 FROM ELLSWORTH TO THEDFORD AND WEST OF A THEDFORD TO
  SPRINGVIEW LINE.

* WINDS: SOUTHWEST WINDS AT 25 TO 35 MPH WITH GUSTS TO 40 MPH.

* IMPACTS: WINDS THIS STRONG WILL MAKE TRAVEL FOR HIGH PROFILE 
  VEHICLES DIFFICULT. 

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.

&&

$$

BROOKS
196 
WWUS73 KLBF 072101
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
401 PM CDT FRI OCT 7 2011

...WINDS TO DIMINISH THIS EVENING...

.WINDS WILL CONTINUE TO BE BREEZY OVER THE NEXT SEVERAL
HOURS...BUT WILL BE DIMINISHING THROUGH THE EVENING. THEREFORE THE
WIND ADVISORY HAS BEEN CANCELLED.

NEZ004>006-008-094-072215-
/O.CAN.KLBF.WI.Y.0025.000000T0000Z-111007T2200Z/
SHERIDAN-EASTERN CHERRY-KEYA PAHA-BROWN-WESTERN CHERRY-
INCLUDING THE CITIES OF...GORDON...RUSHVILLE...VALENTINE...
SPRINGVIEW...AINSWORTH...CODY...MERRIMAN...KILGORE
401 PM CDT FRI OCT 7 2011 /301 PM MDT FRI OCT 7 2011/

...WIND ADVISORY IS CANCELLED...

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

SOUTHWESTERLY WINDS WILL CONTINUE TO BLOW AT 20 TO 30 MPH WITH
GUSTS TO 35 MPH THROUGH 6 PM CDT /5 PM MDT/...THEN WILL DIMINISH
THROUGH THE EVENING. 

$$

BROOKS

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 6, 7:01 PM CDTTornado WarningLBFCherry29 min
Oct 6, 7:37 PM CDTSevere Thunderstorm WarningLBFArthur, Keith, McPherson, Perkins38 min
Oct 6, 8:07 PM CDTSevere Thunderstorm WarningLBFHooker, McPherson, Thomas38 min
Oct 6, 8:15 PM CDTSevere Thunderstorm WarningLBFArthur, Keith, McPherson45 min
Oct 6, 8:40 PM CDTSevere Thunderstorm WarningLBFCherry, Hooker, Thomas50 min
Oct 6, 9:06 PM CDTSevere Thunderstorm WarningLBFCherry, Hooker39 min
Oct 6, 9:30 PM CDTSevere Thunderstorm WarningLBFCherry45 min
Oct 6, 10:17 PM CDTSevere Thunderstorm WarningLBFCherry, Keya Paha43 min
Oct 7, 4:07 AM CDTRed Flag WarningLBFArthur, Blaine, Boyd, Brown, Cherry, Deuel and 12 more15 hr

Nearby

Wind Advisories in Nebraska, 2011Every wind advisory in 2011

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.