Alert archive / Iowa / Wind Advisories in 2011

Wind Advisory 2, NWS Quad Cities, IA

April 10, 201121 counties in Iowa; 13 counties in Illinois; Clark County, Scotland County, Missouri

NWS Quad Cities, IA issued this wind advisory at Apr 10, 2011, 3:55 AM CDT for 21 counties in Iowa; 13 counties in Illinois; Clark County, Scotland County, Missouri. It took effect at Apr 10, 2011, 11:00 AM CDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Apr 10, 2011, 3:55 AM CDT (08:55 UTC)
In effect from
Apr 10, 2011, 11:00 AM CDT
Expired
Apr 10, 2011, 3:47 PM CDT
In force
5 hr
Issued by
NWS Quad Cities, IA
All 36 counties

Benton County, IA, Buchanan County, IA, Cedar County, IA, Clinton County, IA, Delaware County, IA, Des Moines County, IA, Dubuque County, IA, Henry County, IA, Iowa County, IA, Jackson County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Lee County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Van Buren County, IA, Washington County, IA, Bureau County, IL, Carroll County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, Jo Daviess County, IL, McDonough County, IL, Mercer County, IL, Putnam County, IL, Rock Island County, IL, Stephenson County, IL, Warren County, IL, Whiteside County, IL, Clark County, MO, Scotland County, MO

The radar

The Quad Cities radar (KDVN), 41 km from the middle of the area, began a volume at 08:57 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

Davenport, (KDVN), launched 00:00Z, 8.9 hours before the alert went out and 47 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, Davenport, at 00:00Z on 2011-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 915 joules per kilogram.LCLLFCEL10008507005003002001001 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, Davenport, at 00:00Z on 2011-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 308 square meters per square second.19395878Sfc1 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
915 J/kg
Mixed-layer CIN
-329 J/kg
Mixed-layer LCL
1501 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
308 m²/s²
0-3 km storm-relative helicity
438 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

488 
WWUS73 KDVN 100855
NPWDVN

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
355 AM CDT SUN APR 10 2011

...VERY STRONG SOUTH WINDS DEVELOPING TODAY...

.INTENSE LOW PRESSURE TRACKING FROM NEBRASKA INTO SOUTHERN MINNESOTA
AND NORTHWEST WISCONSIN TODAY WILL CAUSE VERY STRONG GRADIENT
WINDS ACROSS MUCH OF THE REGION. SOUTH WINDS WILL INCREASE TO
SUSTAINED 30 TO 35 MPH WITH GUSTS TO 40 TO 50 MPH...ESPECIALLY
FROM LATE THIS MORNING THROUGH THE AFTERNOON. THE WINDS SHOULD
DIMINISH THIS EVENING TO 15 TO 30 MPH AS A COLD FRONT SWEEPS
THROUGH THE AREA.

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-101900-
/O.NEW.KDVN.WI.Y.0002.110410T1600Z-110411T0100Z/
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...DUBUQUE...
VINTON...CEDAR RAPIDS...ANAMOSA...MAQUOKETA...MARENGO...
IOWA CITY...TIPTON...CLINTON...MUSCATINE...BETTENDORF...
DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO...FAIRFIELD...
MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....FORT MADISON...
GALENA...FREEPORT...MOUNT CARROLL...STERLING...ROCK FALLS...
MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO...
OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...MEMPHIS...KAHOKA
355 AM CDT SUN APR 10 2011

...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT
THIS EVENING. 

* TIMING...LATE THIS MORNING THROUGH THE AFTERNOON AND INTO EARLY
  THIS EVENING.

* WINDS...SUSTAINED AROUND 30 TO 35 MPH WITH GUSTS TO AROUND 40
  TO 50 MPH.

* IMPACTS...VERY STRONG WINDS MAY BLOW LOOSE OBJECTS AROUND AND
  CAUSE DIFFICULT DRIVING ESPECIALLY FOR HIGH PROFILE VEHICLES.
  THE WIND AND VERY WARM TEMPERATURES OF 85 TO 90 WILL ALSO CREATE
  AN EXTREME GRASSLAND FIRE DANGER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 30 MPH OR GREATER ARE
EXPECTED...WHICH CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES.  USE EXTRA CAUTION IF YOU ARE TRAVELING.

&&

$$

HAASE
2 follow-up statements
137 
WWUS73 KDVN 101604
NPWDVN

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1104 AM CDT SUN APR 10 2011

...VERY STRONG SOUTH WINDS TODAY...

.INTENSE LOW PRESSURE MOVING THROUGH SOUTHERN MINNESOTA AND
NORTHWEST WISCONSIN TODAY WILL CAUSE VERY STRONG WINDS ACROSS
MUCH OF THE REGION. SOUTHWEST WINDS AT 30 TO 35 MPH WITH GUSTS OF 
40 TO 50 MPH ARE EXPECTED UNTIL EARLY THIS EVENING. THE WINDS
SHOULD DIMINISH THIS EVENING TO 15 TO 30 MPH AS A COLD FRONT
SWEEPS THROUGH THE AREA.

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-110100-
/O.CON.KDVN.WI.Y.0002.000000T0000Z-110411T0100Z/
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...DUBUQUE...
VINTON...CEDAR RAPIDS...ANAMOSA...MAQUOKETA...MARENGO...
IOWA CITY...TIPTON...CLINTON...MUSCATINE...BETTENDORF...
DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO...FAIRFIELD...
MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....FORT MADISON...
GALENA...FREEPORT...MOUNT CARROLL...STERLING...ROCK FALLS...
MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO...
OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...MEMPHIS...KAHOKA
1104 AM CDT SUN APR 10 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING. 

* TIMING...THROUGH EARLY THIS EVENING.

* WINDS...SOUTHWEST AT 30 TO 35 MPH WITH GUSTS OF 40 TO 50 MPH.

* IMPACTS...VERY STRONG WINDS MAY BLOW LOOSE OBJECTS AROUND AND 
  CAUSE DIFFICULT DRIVING ESPECIALLY FOR HIGH PROFILE VEHICLES. 
  THE WIND AND VERY WARM TEMPERATURES OF 85 TO 90 WILL ALSO 
  CREATE AN EXTREME GRASSLAND FIRE DANGER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WINDS OF 30 MPH OR GREATER ARE
EXPECTED...WHICH CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES.  USE EXTRA CAUTION IF YOU ARE TRAVELING.

&&

$$
485 
WWUS73 KDVN 102047
NPWDVN

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
347 PM CDT SUN APR 10 2011


IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-102200-
/O.CAN.KDVN.WI.Y.0002.000000T0000Z-110411T0100Z/
BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON-
CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON-
HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL-
WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON-
WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK-
INCLUDING THE CITIES OF...INDEPENDENCE...MANCHESTER...DUBUQUE...
VINTON...CEDAR RAPIDS...ANAMOSA...MAQUOKETA...MARENGO...
IOWA CITY...TIPTON...CLINTON...MUSCATINE...BETTENDORF...
DAVENPORT...SIGOURNEY...WASHINGTON...WAPELLO...FAIRFIELD...
MOUNT PLEASANT...BURLINGTON...KEOSAUQUA....FORT MADISON...
GALENA...FREEPORT...MOUNT CARROLL...STERLING...ROCK FALLS...
MOLINE...ROCK ISLAND...KEWANEE...PRINCETON...HENNEPIN...ALEDO...
OQUAWKA...MONMOUTH...CARTHAGE...MACOMB...MEMPHIS...KAHOKA
347 PM CDT SUN APR 10 2011

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN QUAD CITIES HAS CANCELLED THE
WIND ADVISORY. 

SOUTHWEST WINDS ARE EXPECTED TO REMAIN BELOW ADVISORY CRITERIA THE
REST OF THIS AFTERNOON AND EARLY THIS EVENING. SOUTHWEST WINDS
WILL STILL BE STRONG AT 20 TO 30 MPH WITH GUSTS AROUND 40 MPH AT
TIMES THROUGH EARLY THIS EVENING. THE WINDS WILL DIMINISH SOME AS
A COLD FRONT MOVES THROUGH THE REGION.

$$

DLF

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 10, 5:54 PM CDTSpecial Weather StatementDVNMercer36 min
Apr 10, 5:59 PM CDTSpecial Weather StatementDVNHenderson31 min
Apr 10, 6:47 PM CDTSpecial Weather StatementDVNHenry28 min

Nearby

Wind Advisories in Iowa, 2011Wind Advisories in Illinois, 2011Wind Advisories in Missouri, 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.