Alert archive / Iowa / Wind Advisories in 2015

Wind Advisory 13, NWS Des Moines, IA

December 14, 201511 counties in Iowa

NWS Des Moines, IA issued this wind advisory at Dec 14, 2015, 7:25 AM CST for 11 counties in Iowa. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Dec 14, 2015, 7:25 AM CST (13:25 UTC)
Expired
Dec 14, 2015, 12:00 PM CST
In force
5 hr
Issued by
NWS Des Moines, IA

Counties Calhoun County, IA, Cerro Gordo County, IA, Emmet County, IA, Hancock County, IA, Humboldt County, IA, Kossuth County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Winnebago County, IA, Worth County, IA

The radar

The Des Moines radar (KDMX), 145 km from the middle of the area, began a volume at 13:27 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 12:00Z, 1.4 hours before the alert went out and 213 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 12:00Z on 2015-12-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2015-12-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
5 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
521 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
28 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.

889 
WWUS73 KDMX 141325
NPWDMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
725 AM CST MON DEC 14 2015

...STRONG WIND OCCURRING THIS MORNING...

.WINDS ON THE BACK SIDE OF A DEPARTING LOW PRESSURE SYSTEM HAVE
BEEN INCREASING AND ARE EXPECTED TO REMAIN IN PLACE THROUGH THE
MORNING BEFORE THE SYSTEM DEPARTS.

IAZ004>007-015>017-023-024-033-034-141800-
/O.NEW.KDMX.WI.Y.0013.151214T1325Z-151214T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-SAC-CALHOUN-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT...
KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS...
ROLFE...FONDA...GILMORE CITY...HUMBOLDT...SAC CITY...LAKE VIEW...
ODEBOLT...WALL LAKE...SCHALLER...EARLY...ROCKWELL CITY...MANSON...
LAKE CITY...POMEROY
725 AM CST MON DEC 14 2015

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

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

* WINDS...NORTH AT 25 TO 35 MPH WITH GUSTS TO 45 MPH.

* IMPACTS...STRONG WINDS ON THE BACK SIDE OF A DEPARTING LOW
  PRESSURE SYSTEM ARE OCCURRING OVER NORTHERN AND WESTERN IOWA.
  LIGHTWEIGHT AND HIGH PROFILE VEHICLES ON EAST WEST ROADWAYS WILL
  BE MOST AFFECTED.

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.

&&

$$

FAB
1 follow-up statement
929 
WWUS73 KDMX 141806
NPWDMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
1206 PM CST MON DEC 14 2015

...WIND ADVISORY HAS EXPIRED...

IAZ004>007-015>017-023-024-033-034-141915-
/O.EXP.KDMX.WI.Y.0013.000000T0000Z-151214T1800Z/
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-SAC-CALHOUN-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
LAKE MILLS...NORTHWOOD...MANLY...EMMETSBURG...GARNER...BRITT...
KANAWHA...MASON CITY...CLEAR LAKE...POCAHONTAS...LAURENS...
ROLFE...FONDA...GILMORE CITY...HUMBOLDT...SAC CITY...LAKE VIEW...
ODEBOLT...WALL LAKE...SCHALLER...EARLY...ROCKWELL CITY...MANSON...
LAKE CITY...POMEROY
1206 PM CST MON DEC 14 2015

...WIND ADVISORY HAS EXPIRED...

GUSTY WINDS WILL CONTINUE THROUGH THE AFTERNOON THOUGH CONDITIONS
WILL FALL BELOW ADVISORY CRITERIA.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 13, 9:26 PM CSTRiver Flood WarningDMXMahaska, Wapello12 days
Dec 13, 9:27 PM CSTRiver Flood WarningDMXDallas, Polk6 days
Dec 13, 9:27 PM CSTRiver Flood WarningDMXPolk6 days
Dec 13, 9:29 PM CSTRiver Flood WarningDMXMadison, Warren47 hr
Dec 14, 7:35 AM CSTAreal Flood WarningDMXBoone, Hamilton, Hardin, Story24 hr
Dec 14, 8:45 AM CSTRiver Flood WarningDMXPolk, Story56 hr
Dec 14, 8:47 AM CSTRiver Flood WarningDMXStory34 hr
Dec 14, 9:59 AM CSTRiver Flood WarningDMXPolk31 hr
Dec 14, 11:06 AM CSTAreal Flood WarningDMXCalhoun, Carroll, Crawford, Sac24 hr
Dec 14, 11:32 AM CSTRiver Flood WarningDMXStory42 hr
Dec 14, 11:32 AM CSTRiver Flood WarningDMXJasper, Marion, Polk4 days
Dec 14, 11:39 AM CSTRiver Flood WarningDMXMarshall4 days
Dec 14, 12:30 PM CSTAreal Flood WarningDMXGrundy, Hardin, Marshall, Story24 hr
Dec 14, 1:20 PM CSTRiver Flood WarningDMXWebster5 days
Dec 14, 1:20 PM CSTRiver Flood WarningDMXBoone, Hamilton, Webster3 days
Dec 14, 2:13 PM CSTRiver Flood WarningDMXGreene5 days
Dec 14, 2:13 PM CSTRiver Flood WarningDMXMadison, Warren3 days
Dec 14, 2:27 PM CSTAreal Flood WarningDMXMarion, Warren24 hr
Dec 14, 2:39 PM CSTRiver Flood WarningDMXBlack Hawk5 days

Nearby

Wind Advisories in Iowa, 2015Every wind advisory in 2015

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.