Alert archive / Iowa / Wind Advisories in 2014

Wind Advisory 4, NWS Des Moines, IA

January 20, 201411 counties in Iowa

NWS Des Moines, IA issued this wind advisory at Jan 20, 2014, 3:36 PM CST for 11 counties in Iowa. It took effect at Jan 20, 2014, 4:00 PM CST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Jan 20, 2014, 3:36 PM CST (21:36 UTC)
In effect from
Jan 20, 2014, 4:00 PM CST
Expired
Jan 21, 2014, 12:00 AM CST
In force
8 hr
Issued by
NWS Des Moines, IA

Counties Adair County, IA, Adams County, IA, Audubon County, IA, Carroll County, IA, Cass County, IA, Crawford County, IA, Decatur County, IA, Guthrie County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA

The radar

The Des Moines radar (KDMX), 88 km from the middle of the area, began a volume at 21:39 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

Omaha, NE (KOAX), launched 12:00Z, 9.6 hours before the alert went out and 147 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, Omaha, NE at 12:00Z on 2014-01-20Temperature 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, Omaha, NE at 12:00Z on 2014-01-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -89 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
1628 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
-89 m²/s²
0-3 km storm-relative helicity
-57 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.

939 
WWUS73 KDMX 202136
NPWDMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
336 PM CST MON JAN 20 2014

...GUSTY WINDS AGAIN THIS EVENING...

.A STRONG COLD FRONT WILL MOVE SOUTH THROUGH THE AREA BY THIS
EVENING. WINDS WILL INCREASE FROM THE NORTHWEST AND BE QUITE GUSTY
THROUGH THE EVENING HOURS.

IAZ044-045-057-058-070-071-081-082-092>094-210545-
/O.NEW.KDMX.WI.Y.0004.140120T2200Z-140121T0600Z/
CRAWFORD-CARROLL-AUDUBON-GUTHRIE-CASS-ADAIR-ADAMS-UNION-TAYLOR-
RINGGOLD-DECATUR-
INCLUDING THE CITIES OF...DENISON...CARROLL...AUDUBON...EXIRA...
GUTHRIE CENTER...PANORA...BAYARD...CASEY...ATLANTIC...
GREENFIELD...STUART...ADAIR...FONTANELLE...CORNING...CRESTON...
BEDFORD...LENOX...NEW MARKET...MOUNT AYR...LAMONI...LEON
336 PM CST MON JAN 20 2014

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT CST TONIGHT. 

* TIMING...GUSTY NORTHWEST WINDS WILL OVERSPREAD THE AREA EARLY
  THIS EVENING. THE STRONGEST WINDS WILL BE BEFORE 9 PM...WITH
  DIMINISHING WINDS TOWARD MIDNIGHT.

* WINDS...NORTHWEST WINDS OF 25 TO 30 MPH WITH OCCASIONAL GUSTS TO
  OVER 40 MPH ARE EXPECTED THROUGH THE MID EVENING.

* IMPACTS...THE STRONG WINDS WILL CAUSE BLOWING OF ANY SNOW THAT
  DOES FALL THIS EVENING. LOOSE OBJECTS MAY ALSO BE BLOWN ABOUT BY
  THE STRONG WINDS.

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
537 
WWUS73 KDMX 210310
NPWDMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
910 PM CST MON JAN 20 2014

...GUSTY WINDS CONTINUE...

.STRONG NORTHWEST WINDS ARE FORECAST TO PERSIST THROUGH THE REST
OF THE EVENING BEFORE WEAKENING AROUND MIDNIGHT.

IAZ044-045-057-058-070-071-081-082-092>094-210600-
/O.CON.KDMX.WI.Y.0004.000000T0000Z-140121T0600Z/
CRAWFORD-CARROLL-AUDUBON-GUTHRIE-CASS-ADAIR-ADAMS-UNION-TAYLOR-
RINGGOLD-DECATUR-
INCLUDING THE CITIES OF...DENISON...CARROLL...AUDUBON...EXIRA...
GUTHRIE CENTER...PANORA...BAYARD...CASEY...ATLANTIC...
GREENFIELD...STUART...ADAIR...FONTANELLE...CORNING...CRESTON...
BEDFORD...LENOX...NEW MARKET...MOUNT AYR...LAMONI...LEON
910 PM CST MON JAN 20 2014

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

* TIMING...STRONG GUSTY NORTHWEST WINDS ARE EXPECTED TO CONTINUE
  THROUGH THE REMAINDER OF THE EVENING BEFORE WEAKENING AROUND
  MIDNIGHT OR INTO MORNING HOURS TUESDAY.

* WINDS...NORTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 45 MPH CAN
  BE EXPECTED.

* IMPACTS...THE STRONG WINDS WILL CAUSE BLOWING OF ANY SNOW AND
  CAUSE DIFFICULT TRAVEL CONDITIONS.

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.

&&

$$

PODRAZIK
225 
WWUS73 KDMX 210545
NPWDMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1145 PM CST MON JAN 20 2014

...NORTHWEST WINDS SLOWLY WEAKENING...

.THE VERY STRONG NORTH TO NORTHWEST WINDS WILL WEAKEN DURING THE
OVERNIGHT HOURS. WINDS LOOK TO STILL REMAIN AT 15 TO 25 MPH
THROUGH TUESDAY MORNING.

IAZ044-045-057-058-070-071-081-082-092>094-210645-
/O.EXP.KDMX.WI.Y.0004.000000T0000Z-140121T0600Z/
CRAWFORD-CARROLL-AUDUBON-GUTHRIE-CASS-ADAIR-ADAMS-UNION-TAYLOR-
RINGGOLD-DECATUR-
INCLUDING THE CITIES OF...DENISON...CARROLL...AUDUBON...EXIRA...
GUTHRIE CENTER...PANORA...BAYARD...CASEY...ATLANTIC...
GREENFIELD...STUART...ADAIR...FONTANELLE...CORNING...CRESTON...
BEDFORD...LENOX...NEW MARKET...MOUNT AYR...LAMONI...LEON
1145 PM CST MON JAN 20 2014

...WIND ADVISORY WILL EXPIRE AT MIDNIGHT CST TONIGHT...

THE VERY STRONG NORTHWEST WINDS HAVE WEAKENED TO BELOW CRITERIA. 
HOWEVER...NORTHWEST WINDS OF 15 TO 25 MPH CAN STILL BE EXPECTED
OVERNIGHT...AND WILL CONTINUE TO DIMINISH BY SUNRISE.

$$

KLP

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 20, 3:42 AM CSTWind Chill AdvisoryDMXAdair, Appanoose, Audubon, Black Hawk, Boone, Bremer and 42 more32 hr

Nearby

Wind Advisories in Iowa, 2014Every wind advisory in 2014

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.