Alert archive / Iowa / High Wind Warnings in 2007

High Wind Warning 2, NWS Des Moines, IA

July 16, 2007Palo Alto County, Pocahontas County, Iowa

NWS Des Moines, IA issued this high wind warning at Jul 16, 2007, 5:53 PM CDT for Palo Alto County, Pocahontas County, Iowa. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 16, 2007, 5:53 PM CDT (22:53 UTC)
Expired
Jul 16, 2007, 6:59 PM CDT
In force
66 min
Issued by
NWS Des Moines, IA

Counties Palo Alto County, IA, Pocahontas County, IA

The radar

The Des Moines radar (KDMX), 153 km from the middle of the area, began a volume at 22:53 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

Omaha, NE (KOAX), launched 12:00Z, 10.9 hours before the alert went out and 225 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 2007-07-16Temperature 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 2007-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
1620 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
75 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 KDMX 162253
NPWDMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
553 PM CDT MON JUL 16 2007

...HIGH WIND WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

IAZ015-023-170100-
/O.NEW.KDMX.HW.W.0002.070716T2253Z-070717T0100Z/
PALO ALTO-POCAHONTAS-
INCLUDING THE CITIES OF...EMMETSBURG...POCAHONTAS
553 PM CDT MON JUL 16 2007

...HIGH WIND WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT UNTIL 8 PM CDT THIS EVENING. 

STRONG OUTFLOW WINDS FROM THUNDERSTORMS TO THE NORTH WILL PRODUCE
STRONG WINDS ACROSS PARTS OF PALO ALTO AND POCAHONTAS COUNTIES
THROUGH EARLY EVENING. WINDS OVER 60 MPH OCCURRED IN SPENCER
SHORTLY BEFORE 5:30 PM. THESE STRONG WINDS WILL IMPACT MAINLY THE
SOUTHEAST HALF OF PALO ALTO COUNTY...ALONG WITH MUCH OF POCAHONTAS COUNTY.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$
KINNEY
2 follow-up statements
000 
WWUS73 KDMX 162319
NPWDMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
619 PM CDT MON JUL 16 2007

...HIGH WIND WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING...

IAZ015-023-170100-
/O.CON.KDMX.HW.W.0002.000000T0000Z-070717T0100Z/
PALO ALTO-POCAHONTAS-
INCLUDING THE CITIES OF...EMMETSBURG...POCAHONTAS
619 PM CDT MON JUL 16 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

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

STRONG OUTFLOW WINDS FROM THUNDERSTORMS TO THE NORTH WILL PRODUCE
STRONG WINDS ACROSS PARTS OF PALO ALTO AND POCAHONTAS COUNTIES
THROUGH EARLY EVENING. WINDS OVER 60 MPH OCCURRED TO THE NORTHWEST IN
SPENCER...AND WILL IMPACT MAINLY THE SOUTHEAST HALF OF PALO ALTO
COUNTY...ALONG WITH MUCH OF POCAHONTAS COUNTY.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE.

$$

KINNEY
000 
WWUS73 KDMX 162359
NPWDMX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DES MOINES IA
659 PM CDT MON JUL 16 2007

IAZ015-023-170100-
/O.CAN.KDMX.HW.W.0002.000000T0000Z-070717T0100Z/
PALO ALTO-POCAHONTAS-
INCLUDING THE CITIES OF...EMMETSBURG...POCAHONTAS
659 PM CDT MON JUL 16 2007

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE HIGH
WIND WARNING. 

OUTFLOW WINDS FROM EARLIER THUNDERSTORMS NO LONGER POSE A THREAT
ACROSS PALO ALTO AND POCAHONTAS COUNTIES.

$$
KINNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 1:14 AM CDTSevere Thunderstorm WarningDMXCarroll, Greene37 min
Jul 16, 5:13 PM CDTSevere Thunderstorm WarningDMXEmmet47 min
Jul 16, 5:40 PM CDTSevere Thunderstorm WarningDMXBremer, Butler65 min
Jul 16, 5:43 PM CDTSevere Thunderstorm WarningDMXEmmet, Kossuth47 min
Jul 16, 6:08 PM CDTSevere Thunderstorm WarningDMXHancock, Kossuth52 min
Jul 16, 6:38 PM CDTSevere Thunderstorm WarningDMXBlack Hawk, Butler37 min

Nearby

High Wind Warnings in Iowa, 2007Every high wind warning in 2007

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.