Alert archive / Nebraska / Wind Chill Advisories in 2011

Wind Chill Advisory 2, NWS North Platte, NE

January 11, 20116 counties in Nebraska

NWS North Platte, NE issued this wind chill advisory at Jan 11, 2011, 3:39 PM CST for 6 counties in Nebraska. It took effect at Jan 11, 2011, 6:00 PM CST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Jan 11, 2011, 3:39 PM CST (21:39 UTC)
In effect from: Jan 11, 2011, 6:00 PM CST
Expired: Jan 12, 2011, 12:00 PM CST
In force: 18 hr
Issued by: NWS North Platte, NE

Counties Boyd County, NE, Custer County, NE, Garfield County, NE, Holt County, NE, Loup County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 128 km from the middle of the area, began a volume at 21:40 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, 9.7 hours before the alert went out and 167 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 787 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 58 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.

147 
WWUS43 KLBF 112139
WSWLBF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
339 PM CST TUE JAN 11 2011

.TEMPERATURES TONIGHT WILL FALL TO 12 BELOW TO 20 BELOW ZERO.
BITTERLY COLD TEMPERATURES WILL COMBINE WITH WINDS OF 10 TO 20
MPH...TO PRODUCE WIND CHILLS OF 20 TO 30 BELOW ZERO THROUGH
WEDNESDAY MORNING.

NEZ007-010-027>029-038-121000-
/O.NEW.KLBF.WC.Y.0002.110112T0000Z-110112T1800Z/
BOYD-HOLT-LOUP-GARFIELD-WHEELER-CUSTER-
INCLUDING THE CITIES OF...SPENCER...ONEILL...TAYLOR...BURWELL...
BARTLETT...BROKEN BOW
339 PM CST TUE JAN 11 2011

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON CST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT UNTIL NOON CST WEDNESDAY. 

* TIMING...DUE TO THE THE COMBINATION OF TEMPERATURES FALLING WELL
  BELOW ZERO TONIGHT AND CONTINUED NORTHWEST WINDS...DANGEROUS
  WIND CHILLS WILL OCCUR OVERNIGHT AND CONTINUE INTO WEDNESDAY
  MORNING.

* WINDS...NORTHWEST WINDS OF 10 TO 20 MPH WILL GRADUALLY DIMINISH
  TO AROUND 10 MPH LATER TONIGHT AND WEDNESDAY MORNING.

* IMPACTS...TEMPERATURES TONIGHT INTO TOMORROW MORNING WILL DROP
  TO 12 BELOW TO 20 BELOW AND COMBINE WITH NORTHWEST WINDS TO
  PRODUCE WIND CHILL READINGS OF 20 TO 30 BELOW ZERO. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. 
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

&&

$$

KAR

1 follow-up statement

951 
WWUS43 KLBF 120950
WSWLBF

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTH PLATTE NE
350 AM CST WED JAN 12 2011


NEZ007-010-027>029-038-121800-
/O.CON.KLBF.WC.Y.0002.000000T0000Z-110112T1800Z/
BOYD-HOLT-LOUP-GARFIELD-WHEELER-CUSTER-
INCLUDING THE CITIES OF...SPENCER...ONEILL...TAYLOR...BURWELL...
BARTLETT...BROKEN BOW
350 AM CST WED JAN 12 2011

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

A WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY. 

* TIMING...AS TEMPERATURES INCREASE AND WIND SPEED DIMINISHES THIS
  MORNING...WIND CHILL WILL GRADUALLY RISE AFTER DAYBREAK. BY
  MIDDAY...WIND CHILL VALUES ARE EXPECTED TO BE 5 TO 10 BELOW
  ZERO.  

* WINDS...NORTHWEST WIND WILL DECREASE TO 7 MPH OR LESS BY NOON
  CST. 

* IMPACTS...WIND CHILL LOWER THAN 20 BELOW ZERO CREATES A RISK OF
  DEVELOPING FROSTBITE IN EXPOSED SKIN WITHIN A SHORT TIME.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WIND NEAR 10
MPH WILL COMBINE TO GENERATE HAZARDOUS WIND CHILLS. THIS WILL RESULT
IN FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT
TAKEN. IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU COVER EXPOSED
SKIN.

&&

$$
SPRINGER/MASEK

Nearby

Wind Chill Advisories in Nebraska, 2011 Every wind chill 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.