Alert archive / Nebraska / Wind Advisories in 2012

Wind Advisory 25, NWS North Platte, NE

May 6, 20126 counties in Nebraska

NWS North Platte, NE issued this wind advisory at May 6, 2012, 2:20 AM MDT for 6 counties in Nebraska. It took effect at May 6, 2012, 3:00 AM MDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 6, 2012, 2:20 AM MDT (08:20 UTC)
In effect from
May 6, 2012, 3:00 AM MDT
Expired
May 6, 2012, 9:21 AM MDT
In force
6 hr
Issued by
NWS North Platte, NE

Counties Chase County, NE, Custer County, NE, Frontier County, NE, Hayes County, NE, Lincoln County, NE, Perkins County, NE

The radar

The North Platte radar (KLNX), 130 km from the middle of the area, began a volume at 08:21 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 00:00Z, 8.3 hours before the alert went out and 42 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 2012-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2096 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 2012-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 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
2096 J/kg
Mixed-layer CIN
-160 J/kg
Mixed-layer LCL
1143 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
430 m²/s²
Significant tornado parameter
1.1
Supercell composite
32.7

Open this sounding in Storm Lab

The text

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

537 
WWUS73 KLBF 060820
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
320 AM CDT SUN MAY 6 2012

...STRONG NORTH WINDS TO OCCUR THROUGH EARLY AFTERNOON...

.NORTH WINDS OF 25 TO 35 MPH EARLY THIS MORNING WILL PERSIST
THROUGH EARLY AFTERNOON ACROSS PORTIONS OF CENTRAL AND SOUTHWEST 
NEBRASKA.

NEZ038-058-059-069>071-061800-
/O.NEW.KLBF.WI.Y.0025.120506T0900Z-120506T1800Z/
CUSTER-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER-
INCLUDING THE CITIES OF...BROKEN BOW...GRANT...NORTH PLATTE...
IMPERIAL...HAYES CENTER...CURTIS...EUSTIS
320 AM CDT SUN MAY 6 2012 /220 AM MDT SUN MAY 6 2012/

...WIND ADVISORY IN EFFECT UNTIL 1 PM CDT /NOON MDT/ THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 1 PM CDT /NOON MDT/ THIS
AFTERNOON. 


* TIMING: STRONG NORTH WINDS OF 25 TO 35 MPH WILL DEVELOP EARLY
  THIS MORNING AND PERSIST UNTIL EARLY AFTERNOON.

* WINDS: NORTH AT 25 TO 35 MPH. 

* IMPACTS: LIGHTWEIGHT AND HIGH PROFILE SHOULD PREPARE 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.

&&

$$

KAR
1 follow-up statement
413 
WWUS73 KLBF 061521
NPWLBF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1021 AM CDT SUN MAY 6 2012

...WIND ADVISORY IS CANCELLED...

.THE PRESSURE GRADIENT CONTINUES TO WEAKEN ACROSS WEST CENTRAL AND
SOUTHWEST NEBRASKA AND WIND SPEEDS HAVE SUBSIDED. THE WIND
ADVISORY HAS BEEN CANCELLED.

NEZ038-058-059-069>071-061630-
/O.CAN.KLBF.WI.Y.0025.000000T0000Z-120506T1800Z/
CUSTER-PERKINS-LINCOLN-CHASE-HAYES-FRONTIER-
INCLUDING THE CITIES OF...BROKEN BOW...GRANT...NORTH PLATTE...
IMPERIAL...HAYES CENTER...CURTIS...EUSTIS
1021 AM CDT SUN MAY 6 2012 /921 AM MDT SUN MAY 6 2012/

...WIND ADVISORY IS CANCELLED...

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

WIND SPEEDS HAVE DROPPED BELOW ADVISORY CRITERIA...HOWEVER GUSTS
TO 25 MPH MAY STILL BE POSSIBLE THROUGH EARLY AFTERNOON TODAY.

$$

JACOBS

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 7:43 PM MDTSevere Thunderstorm WarningLBFLogan, Thomas47 min
May 5, 7:59 PM MDTSevere Thunderstorm WarningLBFBrown, Rock46 min
May 5, 8:20 PM MDTSevere Thunderstorm WarningLBFLincoln, Logan, McPherson40 min
May 5, 8:20 PM MDTSevere Thunderstorm WarningLBFBrown, Holt, Rock40 min
May 5, 8:29 PM MDTSevere Thunderstorm WarningLBFBlaine, Logan, Thomas46 min
May 5, 8:35 PM MDTSevere Thunderstorm WarningLBFBlaine, Brown, Cherry, Thomas40 min
May 5, 8:36 PM MDTSevere Thunderstorm WarningLBFBoyd, Holt, Keya Paha, Rock39 min
May 5, 8:42 PM MDTSevere Thunderstorm WarningLBFBrown, Rock48 min
May 5, 8:55 PM MDTSevere Thunderstorm WarningLBFBrown, Holt, Rock35 min
May 5, 9:00 PM MDTSevere Thunderstorm WarningLBFLincoln, Logan, McPherson45 min
May 5, 9:06 PM MDTSevere Thunderstorm WarningLBFBlaine, Custer, Logan39 min
May 5, 9:10 PM MDTSevere Thunderstorm WarningLBFBlaine, Brown, Holt, Loup, Rock50 min
May 5, 9:24 PM MDTSevere Thunderstorm WarningLBFLincoln51 min
May 5, 9:28 PM MDTSevere Thunderstorm WarningLBFBlaine, Custer, Loup47 min
May 5, 9:30 PM MDTSevere Thunderstorm WarningLBFBrown, Holt, Rock60 min
May 5, 9:43 PM MDTSevere Thunderstorm WarningLBFLincoln, Logan47 min
May 5, 9:57 PM MDTSevere Thunderstorm WarningLBFHolt, Loup, Rock48 min
May 5, 10:02 PM MDTSevere Thunderstorm WarningLBFBlaine, Brown, Loup, Rock29 min
May 5, 10:19 PM MDTSevere Thunderstorm WarningLBFLincoln41 min
May 5, 10:28 PM MDTSevere Thunderstorm WarningLBFCuster, Logan47 min
May 5, 10:29 PM MDTSevere Thunderstorm WarningLBFHolt46 min
May 5, 11:10 PM MDTSevere Thunderstorm WarningLBFCuster50 min
May 5, 11:23 PM MDTAreal Flood AdvisoryLBFLincoln, Logan, McPherson7 hr
May 5, 11:59 PM MDTSevere Thunderstorm WarningLBFCuster, Loup31 min

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.