Alert archive / Iowa / High Wind Warnings in 2007

High Wind Warning 4, NWS Sioux Falls, SD

July 16, 2007Buena Vista County, Clay County, Iowa

NWS Sioux Falls, SD issued this high wind warning at Jul 16, 2007, 5:37 PM CDT for Buena Vista County, Clay County, Iowa. It was in force for 83 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, 5:37 PM CDT (22:37 UTC)
Expired: Jul 16, 2007, 7:00 PM CDT
In force: 83 min
Issued by: NWS Sioux Falls, SD

Counties Buena Vista County, IA, Clay County, IA

The radar

The Sioux Falls radar (KFSD), 148 km from the middle of the area, began a volume at 22:40 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, 10.6 hours before the alert went out and 203 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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 KFSD 162237
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
537 PM CDT MON JUL 16 2007

IAZ014-022-170000-
/O.NEW.KFSD.HW.W.0004.070716T2237Z-070717T0000Z/
CLAY-BUENA VISTA-
INCLUDING THE CITIES OF...SPENCER...STORM LAKE
537 PM CDT MON JUL 16 2007

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

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A HIGH
WIND WARNING...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. 

STRONG WINDS ARE WORKING THEIR WAY SOUTHWARD FROM A THUNDERSTORM
COMPLEX TO THE NORTHEAST. STRONG WINDS AROUND 60 MPH WERE REPORTED
LATE THIS AFTERNOON FIRST IN THE SPIRIT LAKE AREA...THEN NEAR 530
PM AT THE SPENCER IOWA AIRPORT. IT IS ANTICIPATED...THAT THESE
WINDS WILL MOVE THROUGH THE SOUTHERN AND EASTERN PORTIONS OF CLAY
COUNTY...AND PARTS OF BUENA VISTA COUNTY THROUGH ABOUT 630 PM.
DICKINSON COUNTY SHOULD BE OUT OF THE STRONGEST WINDS.

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.

$$

 MJF

1 follow-up statement

000 
WWUS73 KFSD 162346
NPWFSD

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
646 PM CDT MON JUL 16 2007

IAZ014-022-170100-
/O.EXP.KFSD.HW.W.0004.000000T0000Z-070717T0000Z/
CLAY-BUENA VISTA-
INCLUDING THE CITIES OF...SPENCER...STORM LAKE
646 PM CDT MON JUL 16 2007

...HIGH WIND WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING...

THE HIGH WIND WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING. 

OUTFLOW WINDS HAVE SUBSIDED ACROSS THE AREA...AND THE HIGH WIND
WARNING WILL BE ALLOWED TO EXPIRE AS SCHEDULED.

$$

Nearby

High Wind Warnings in Iowa, 2007 Every 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.