Alert archive / Iowa / Wind Advisories in 2009

Wind Advisory 2, NWS La Crosse, WI

March 23, 20096 counties in Iowa; 4 counties in Minnesota

NWS La Crosse, WI issued this wind advisory at Mar 23, 2009, 3:00 AM CDT for 6 counties in Iowa; 4 counties in Minnesota. It took effect at Mar 23, 2009, 4:00 AM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Mar 23, 2009, 3:00 AM CDT (08:00 UTC)
In effect from
Mar 23, 2009, 4:00 AM CDT
Expired
Mar 23, 2009, 7:00 PM CDT
In force
15 hr
Issued by
NWS La Crosse, WI

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

The radar

The La Crosse radar (KARX), 106 km from the middle of the area, began a volume at 08:00 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, 8.0 hours before the alert went out and 184 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 2009-03-23Temperature 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 2009-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 square meters per square second.193958Sfc1 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
1604 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
361 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.

000 
WWUS73 KARX 230800
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
300 AM CDT MON MAR 23 2009

...STRONG SOUTHEAST WINDS TODAY...

.POWERFUL LOW PRESSURE DEVELOPING OVER THE CENTRAL PLAINS TODAY
WILL LEAD TO STRONG SOUTHEAST WINDS FOR THE WIND PRONE AREAS OF
SOUTHEAST MINNESOTA AND NORTHEAST IOWA. SUSTAINED WINDS FROM 25 TO
35 MPH...WITH GUSTS TO 45 MPH ARE LIKELY THROUGH THE DAY...AND MAY
EVEN CONTINUE INTO TONIGHT. A WIND ADVISORY HAS BEEN ISSUED FOR
TODAY...AND MAY NEED TO BE EXTENDED INTO TONIGHT SHOULD THE WINDS
REMAIN STRONG.

IAZ008>010-018-019-029-MNZ086-087-094-095-231600-
/O.NEW.KARX.WI.Y.0002.090323T0900Z-090324T0000Z/
MITCHELL-HOWARD-WINNESHIEK-FLOYD-CHICKASAW-FAYETTE-DODGE-OLMSTED-
MOWER-FILLMORE-
INCLUDING THE CITIES OF...DECORAH...CHARLES CITY...OELWEIN...
ROCHESTER...AUSTIN
300 AM CDT MON MAR 23 2009

...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

SOUTHEAST WINDS FROM 25 TO 35 MPH...WITH GUSTS TO 45 MPH...ARE
LIKELY TODAY. THERE ARE INDICATIONS THE STRONG WINDS WILL CONTINUE
INTO TONIGHT...AND IF THESE TRENDS CONTINUE...THE WIND ADVISORY
MAY NEED TO BE EXTENDED IN TIME.

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.

&&

$$

BINAU

WEATHER.GOV/LACROSSE
4 follow-up statements
000 
WWUS73 KARX 231246
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
746 AM CDT MON MAR 23 2009

...STRONG SOUTHEAST WINDS WILL INCREASE THIS MORNING...

.STRONG SOUTHEAST WINDS FROM 20 TO 30 MPH THIS MORNING WILL
INCREASE THROUGH THE DAY...WITH SUSTAINED WINDS EXPECTED FROM 25
TO 35 MPH...GUSTING TO 45 MPH AT TIMES BECOMING COMMON ACROSS
WIND PRONE AREAS OF SOUTHEAST MINNESOTA AND NORTHEAST IOWA. THE
WINDS SHOULD PEAK IN INTENSITY DURING THE AFTERNOON HOURS BEFORE
FALLING BACK THIS EVENING.

IAZ008>010-018-019-029-MNZ086-087-094-095-232100-
/O.CON.KARX.WI.Y.0002.000000T0000Z-090324T0000Z/
MITCHELL-HOWARD-WINNESHIEK-FLOYD-CHICKASAW-FAYETTE-DODGE-OLMSTED-
MOWER-FILLMORE-
INCLUDING THE CITIES OF...DECORAH...CHARLES CITY...OELWEIN...
ROCHESTER...AUSTIN
746 AM CDT MON MAR 23 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

SOUTHEAST WINDS FROM 25 TO 35 MPH...WITH GUSTS TO 45 MPH...ARE
LIKELY TO DEVELOP THROUGH THE DAY. THE STRONGEST WINDS WILL LIKELY
OCCUR DURING THE AFTERNOON...BEFORE DECREASING A LITTLE BY EARLY
THIS EVENING.

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.

&&

$$

BINAU

WEATHER.GOV/LACROSSE
000 
WWUS73 KARX 231550
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1050 AM CDT MON MAR 23 2009

...STRONG SOUTHEAST WINDS WILL CONTINUE THROUGH THIS EVENING...

.STRONG SOUTHEAST SUSTAINED WINDS OF 25 TO 35 MPH WITH GUSTS UP TO
45 MPH WILL CONTINUE ACROSS SOUTHEAST MINNESOTA AND NORTHEAST IOWA
TODAY AND INTO THIS EVENING. THE WINDS ARE EXPECTED TO PEAK IN
INTENSITY DURING THE AFTERNOON AND EARLY EVENING HOURS BEFORE
DIMINISHING DURING THE MIDDLE AND LATE EVENING HOURS.

IAZ008>010-018-019-029-MNZ086-087-094-095-240000-
/O.CON.KARX.WI.Y.0002.000000T0000Z-090324T0000Z/
MITCHELL-HOWARD-WINNESHIEK-FLOYD-CHICKASAW-FAYETTE-DODGE-OLMSTED-
MOWER-FILLMORE-
INCLUDING THE CITIES OF...DECORAH...CHARLES CITY...OELWEIN...
ROCHESTER...AUSTIN
1050 AM CDT MON MAR 23 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

SOUTHEAST SUSTAINED WINDS OF 25 TO 35 MPH...WITH GUSTS UP TO 45
MPH CAN BE EXPECTED TODAY AND CONTINUE INTO EARLY THIS EVENING.
THE STRONGEST WINDS WILL LIKELY OCCUR DURING THE AFTERNOON AND
EARLY EVENING HOURS...BEFORE DECREASING BY MIDDLE TO LATE EVENING.

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.

&&

$$

DTJ

WEATHER.GOV/LACROSSE
000 
WWUS73 KARX 232031
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
331 PM CDT MON MAR 23 2009

...STRONG SOUTHEAST WINDS WILL CONTINUE THROUGH THIS EVENING...

.A DEEPENING LOW PRESSURE SYSTEM OVER CENTRAL NEBRASKA HAS ALLOWED
THE PRESSURE GRADIENT TO TIGHTEN ACROSS SOUTHEAST MINNESOTA AND
NORTHEAST IOWA. THIS TIGHT PRESSURE GRADIENT WILL CONTINUE TO
PRODUCE STRONG SOUTHEAST SUSTAINED WINDS OF 25 TO 35 MPH WITH
GUSTS UP TO 45 MPH ACROSS PORTIONS OF SOUTHEAST MINNESOTA AND
NORTHEAST IOWA. THE WINDS ARE EXPECTED TO PEAK IN INTENSITY DURING
THE EARLY EVENING HOURS BEFORE DIMINISHING BY MID EVENING.

IAZ008>010-018-019-029-MNZ086-087-094-095-240000-
/O.CON.KARX.WI.Y.0002.000000T0000Z-090324T0000Z/
MITCHELL-HOWARD-WINNESHIEK-FLOYD-CHICKASAW-FAYETTE-DODGE-OLMSTED-
MOWER-FILLMORE-
INCLUDING THE CITIES OF...DECORAH...CHARLES CITY...OELWEIN...
ROCHESTER...AUSTIN
331 PM CDT MON MAR 23 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

SOUTHEAST SUSTAINED WINDS OF 25 TO 35 MPH...WITH GUSTS UP TO
45 MPH WILL CONTINUE INTO EARLY THIS EVENING. THE STRONGEST WINDS
WILL LIKELY OCCUR DURING THE EARLY EVENING HOURS...BEFORE
DECREASING BY MID EVENING.

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.

&&

$$

DTJ

WEATHER.GOV/LACROSSE
000 
WWUS73 KARX 232355
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
655 PM CDT MON MAR 23 2009

...WIND ADVISORY EXPIRES AT 7 PM...

.WINDS HAVE DIMINISHED BELOW ADVISORY CRITERIA AND THUS THE WIND
ADVISORY WILL BE ALLOWED TO EXPIRE AT 7 PM.

IAZ008>010-018-019-029-MNZ086-087-094-095-240100-
/O.EXP.KARX.WI.Y.0002.000000T0000Z-090324T0000Z/
MITCHELL-HOWARD-WINNESHIEK-FLOYD-CHICKASAW-FAYETTE-DODGE-OLMSTED-
MOWER-FILLMORE-
INCLUDING THE CITIES OF...DECORAH...CHARLES CITY...OELWEIN...
ROCHESTER...AUSTIN
655 PM CDT MON MAR 23 2009

...WIND ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING...

THE WIND ADVISORY WILL EXPIRE AT 7 PM CDT THIS EVENING. 

ALTHOUGH SOUTHEAST WINDS OF 20 TO 30 MPH WILL BE COMMON OVERNIGHT.
THE WINDS HAVE DROPPED BELOW ADVISORY CRITERIA AND THUS THE WIND
ADVISORY WILL BE ALLOWED TO EXPIRE AT 7 PM

$$

RABERDING

WEATHER.GOV/LACROSSE

Nearby

Wind Advisories in Iowa, 2009Wind Advisories in Minnesota, 2009Every wind advisory in 2009

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.