Alert archive / Iowa / Wind Advisories in 2011

Wind Advisory 8, NWS La Crosse, WI

December 26, 20114 counties in Iowa; 4 counties in Minnesota

NWS La Crosse, WI issued this wind advisory at Dec 26, 2011, 3:51 AM CST for 4 counties in Iowa; 4 counties in Minnesota. It took effect at Dec 26, 2011, 10:00 AM CST. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Dec 26, 2011, 3:51 AM CST (09:51 UTC)
In effect from
Dec 26, 2011, 10:00 AM CST
Expired
Dec 26, 2011, 3:00 PM CST
In force
5 hr
Issued by
NWS La Crosse, WI

Counties Chickasaw County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Dodge County, MN, Fillmore County, MN, Mower County, MN, Olmsted County, MN

The radar

The La Crosse radar (KARX), 113 km from the middle of the area, began a volume at 09:53 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

Minneapolis, MN (KMPX), launched 00:00Z, 9.9 hours before the alert went out and 170 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, Minneapolis, MN at 00:00Z on 2011-12-26Temperature 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, Minneapolis, MN at 00:00Z on 2011-12-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1549 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
87 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.

586 
WWUS73 KARX 260951
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
351 AM CST MON DEC 26 2011

...WINDY CONDITIONS TODAY FOR PORTIONS OF THE AREA...

.SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS OF 40 TO 45 MPH WILL
BUFFET THE AREA TODAY. THESE STRONG WINDS CAN BE EXPECTED TO OCCUR
DURING THE LATE MORNING THROUGH THE MIDDLE OF THE AFTERNOON. THESE
WINDS WILL OCCUR AHEAD OF A COLD FRONT ATTACHED TO A STRONG AREA
OF LOW PRESSURE MOVING ACROSS CANADA. THE WINDS WILL DIMINISH LATE
THIS AFTERNOON AS THE COLD FRONT MOVES THROUGH THE REGION.

IAZ008-009-018-019-MNZ086-087-094-095-261800-
/O.NEW.KARX.WI.Y.0008.111226T1600Z-111226T2100Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
351 AM CST MON DEC 26 2011

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 3 PM CST
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 3 PM CST
THIS AFTERNOON. 

* TIMING...LATE THIS MORNING THROUGH THE MIDDLE OF THE AFTERNOON.

* WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS OF
  40 TO 45 MPH.

* IMPACTS...WINDS THIS STRONG COULD PRODUCE SOME MINOR TREE AND
  ROOF DAMAGE. OUTDOOR OBJECTS SHOULD BE SECURED TO HOLD THEM IN
  PLACE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER...
OR GUSTS OVER 45 MPH...ARE EXPECTED. WINDS THIS STRONG CAN MAKE
DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE
EXTRA CAUTION.

&&

$$

04

WEATHER.GOV/LACROSSE
4 follow-up statements
334 
WWUS73 KARX 261508
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
908 AM CST MON DEC 26 2011

...WINDY FOR PORTIONS OF THE AREA TODAY...

.SOUTHWEST WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS OF 40
TO 45 MPH THROUGH THE MORNING. THESE STRONG WINDS WILL THEN
CONTINUE THROUGH THE EARLY INTO MID AFTERNOON HOURS. 

THESE WINDS WILL OCCUR IN A TIGHT PRESSURE GRADIENT AHEAD OF A COLD
FRONT BEING DRAGGED ACROSS THE UPPER MIDWEST BY LOW PRESSURE
MOVING ACROSS SOUTHERN CANADA. THE WINDS WILL DIMINISH LATE THIS
AFTERNOON AS THE COLD FRONT MOVES THROUGH THE AREA.

IAZ008-009-018-019-MNZ086-087-094-095-262100-
/O.CON.KARX.WI.Y.0008.111226T1600Z-111226T2100Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
908 AM CST MON DEC 26 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* TIMING...LATE THIS MORNING THROUGH THE MIDDLE OF THE AFTERNOON.

* WINDS...SUSTAINED SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS 
  OF 40 TO 45 MPH. 

* IMPACTS...WINDS THIS STRONG WILL MAKE DRIVING DIFFICULT FOR
  LIGHT-WEIGHT OR HIGH PROFILE VEHICLES TRAVELING ON EAST-WEST
  ROADS. LOOSE OUTDOOR OBJECTS AND HOLIDAY YARD DECORATIONS COULD
  BE BLOWN AROUND BY THESE WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER...
OR GUSTS OVER 45 MPH...ARE EXPECTED. WINDS THIS STRONG CAN MAKE
DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE
EXTRA CAUTION.

&&

$$

RRS

WEATHER.GOV/LACROSSE
058 
WWUS73 KARX 261747
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1147 AM CST MON DEC 26 2011

...QUITE WINDY THROUGH MID AFTERNOON...

.SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 TO 40 MPH WERE
COMMON ACROSS THE AREA AS OF 1130 AM. AS TEMPERATURES CONTINUE TO
WARM TODAY...THE WINDS WILL INCREASE A BIT AS WELL. WINDS OF 25 TO
35 MPH WITH GUSTS OF 40 TO 45 MPH CAN BE EXPECTED THROUGH THE EARLY
AND MID AFTERNOON HOURS.

THESE WINDS WILL OCCUR IN A TIGHT PRESSURE GRADIENT AHEAD OF A
COLD FRONT BEING DRAGGED ACROSS THE UPPER MIDWEST BY LOW PRESSURE
MOVING ACROSS SOUTHERN CANADA. THE WINDS WILL DIMINISH LATER THIS
AFTERNOON AS THE COLD FRONT MOVES THROUGH THE AREA.

IAZ008-009-018-019-MNZ086-087-094-095-262100-
/O.CON.KARX.WI.Y.0008.000000T0000Z-111226T2100Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
1147 AM CST MON DEC 26 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* TIMING...CONTINUING THROUGH THE EARLY AND MID AFTERNOON HOURS.

* WINDS...SUSTAINED SOUTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS OF
  40 TO 45 MPH...ESPECIALLY ACROSS HIGHER TERRAIN AND
  OPEN...EXPOSED LOCATIONS.

* IMPACTS...WINDS THIS STRONG WILL MAKE DRIVING DIFFICULT FOR
  LIGHT-WEIGHT OR HIGH PROFILE VEHICLES TRAVELING ON EAST-WEST
  ROADS. LOOSE OUTDOOR OBJECTS LIKE TRASH CANS AND HOLIDAY YARD
  DECORATIONS COULD BE BLOWN AROUND BY THESE WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER...
OR GUSTS OVER 45 MPH...ARE EXPECTED. WINDS THIS STRONG CAN MAKE
DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE
EXTRA CAUTION.

&&

$$

RRS

WEATHER.GOV/LACROSSE
991 
WWUS73 KARX 261946
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
146 PM CST MON DEC 26 2011

...QUITE WINDY THROUGH MID AFTERNOON...

.SOUTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS OF 35 TO 45 MPH WERE
COMMON ACROSS THE AREA AS OF 130 PM. A WIND GUST OF 48 MPH WAS
LOGGED AT THE ROCHESTER AIRPORT AT 1209 PM. WINDS CAN BE EXPECTED
TO REMAIN THIS STRONG THROUGH THE MID AFTERNOON HOURS.

THESE WINDS WILL OCCUR IN A TIGHT PRESSURE GRADIENT AHEAD OF A
COLD FRONT BEING DRAGGED ACROSS THE UPPER MIDWEST BY LOW PRESSURE
MOVING ACROSS SOUTHERN CANADA. THE WINDS WILL DIMINISH LATER THIS
AFTERNOON AS THE COLD FRONT MOVES THROUGH THE AREA.

IAZ008-009-018-019-MNZ086-087-094-095-262100-
/O.CON.KARX.WI.Y.0008.000000T0000Z-111226T2100Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
146 PM CST MON DEC 26 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM CST THIS
AFTERNOON...

* TIMING...CONTINUING THROUGH THE MID AFTERNOON HOURS.

* WINDS...SUSTAINED SOUTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS 
  OF 40 TO 45 MPH...ESPECIALLY ACROSS HIGHER TERRAIN AND OPEN... 
  EXPOSED LOCATIONS. 

* IMPACTS...WINDS THIS STRONG WILL MAKE DRIVING DIFFICULT FOR 
  LIGHT-WEIGHT OR HIGH PROFILE VEHICLES TRAVELING ON EAST-WEST 
  ROADS. LOOSE OUTDOOR OBJECTS LIKE TRASH CANS AND HOLIDAY YARD 
  DECORATIONS COULD BE BLOWN AROUND BY THESE WINDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH OR HIGHER...
OR GUSTS OVER 45 MPH...ARE EXPECTED. WINDS THIS STRONG CAN MAKE
DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE
EXTRA CAUTION.

&&

$$

RRS

WEATHER.GOV/LACROSSE
010 
WWUS73 KARX 262059
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
259 PM CST MON DEC 26 2011

...WINDS DECREASING OVER THE AREA...

.WINDS ACROSS THE AREA WERE ALREADY DECREASING AS OF 230 PM...WITH
MOST WINDS IN THE 20 TO 25 MPH AND GUSTING TO 30 TO 40 MPH. THE
WINDS WILL CONTINUE TO DECREASE THROUGH THE REST OF THE AFTERNOON
AS A COLD FRONT APPROACHES AND MOVES ACROSS THE AREA. 

IAZ008-009-018-019-MNZ086-087-094-095-262200-
/O.EXP.KARX.WI.Y.0008.000000T0000Z-111226T2100Z/
MITCHELL-HOWARD-FLOYD-CHICKASAW-DODGE-OLMSTED-MOWER-FILLMORE-
INCLUDING THE CITIES OF...CHARLES CITY...ROCHESTER...AUSTIN
259 PM CST MON DEC 26 2011

...WIND ADVISORY WILL EXPIRE AT 3 PM CST THIS AFTERNOON...

WINDS ACROSS THE AREA WERE DECREASING AND WILL CONTINUE TO
DECREASE THROUGH SUNSET. THEREFORE THE WIND ADVISORY WILL BE
ALLOWED TO EXPIRE AT 3 PM.

$$

RRS

WEATHER.GOV/LACROSSE

Nearby

Wind Advisories in Iowa, 2011Wind Advisories in Minnesota, 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.