Alert archive / Iowa / Tornado Warnings in 2005

Tornado Warning 24, NWS Des Moines, IA

July 24, 2005Crawford County, Iowa

NWS Des Moines, IA issued this tornado warning at Jul 24, 2005, 6:30 PM CDT for Crawford County, Iowa. It was in force for 45 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 24, 2005, 6:30 PM CDT (23:30 UTC)
Expired: Jul 24, 2005, 7:15 PM CDT
In force: 45 min
Issued by: NWS Des Moines, IA
Area: Counties, with a storm outline in the text

County Crawford County, IA

The radar

The Des Moines radar (KDMX), 130 km from the middle of the area, began a volume at 23:30 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.

What was reported inside it

Time	Report	Where	Remark
Jul 24, 7:05 PM CDT	TORNADO	7 Ne Deloit, IA	BRIEF TORNADO TOUCHDOWN CUT PATH THROUGH CORN FIELD.
Jul 24, 7:10 PM CDT	HAIL 2	5 Ne Deloit, IA	2 INCH HAIL ALONG WITH STRONG WINDS. SEVERAL LARGE TREES DOWN. HAIL SWATH NEARLY TWO MILES WIDE WITH GROUND BECOMING WHITE FOR A PERIOD.
Jul 24, 7:20 PM CDT	HAIL 1.75	3 Nne Deloit, IA	NICKEL HAIL BEGAN AT 710 PM WITH GOLFBALL HAIL FROM 715 PM TO 730 PM.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 24, 4:50 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 11.5 hours before the alert went out and 132 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: 699 J/kg
Mixed-layer CIN: -380 J/kg
Mixed-layer LCL: 1888 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -42 m²/s²
0-3 km storm-relative helicity: 31 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.

000 
WFUS53 KDMX 242329
TORDMX
IAC047-250015-
/O.NEW.KDMX.TO.W.0024.050724T2330Z-050725T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
630 PM CDT SUN JUL 24 2005

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CRAWFORD COUNTY IN WEST CENTRAL IOWA.

* UNTIL 715 PM CDT.

* AT 626 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 11 MILES SOUTHWEST OF LAKE VIEW...OR 54 MILES
  SOUTHWEST OF FORT DODGE...AND MOVING SOUTHWEST AT 15 MPH.

* THIS STORM WILL BE...
  NEAR VAIL BY 700 PM CDT.
  5 MILES EAST OF DENISON BY 715 PM CDT.

THE LOCATION OF DELOIT IS ALSO IN THE PATH.

THIS IS A HAZARDOUS SITUATION. SEEK SHELTER IN A BASEMENT...OR IN AN
INTERIOR ROOM. STAY AWAY FROM WINDOWS. IF YOU ARE OUTSIDE OR IN A
CAR...SEEK SHELTER IN A REINFORCED BUILDING.

LAT...LON 4221 9510 4221 9534 4201 9536 4201 9510

$$

DONAVON

1 follow-up statement

000 
WWUS53 KDMX 242353
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
653 PM CDT SUN JUL 24 2005

IAC047-250015-
/O.CON.KDMX.TO.W.0024.000000T0000Z-050725T0015Z/
CRAWFORD IA-
653 PM CDT SUN JUL 24 2005

...A TORNADO WARNING CONTINUES FOR NORTHEASTERN CRAWFORD COUNTY UNTIL
715 PM CDT...

AT 652 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 10 MILES NORTHEAST OF DENISON...OR 60 MILES
SOUTHWEST OF FORT DODGE...AND MOVING SOUTHWEST AT 5 MPH.

THIS TORNADIC STORM WILL BE...
  NEAR DELOIT BY 715 PM CDT.

THE LOCATIONS OF KIRON AND VAIL ARE ALSO IN THE PATH OF THIS TORNADO.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS OF 60 MPH.

LAT...LON 4221 9510 4221 9534 4201 9536 4201 9510

$$

VACHALEK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 5:42 PM CDT	Tornado Warning	DMX	Webster	27 min
Jul 24, 5:48 PM CDT	Severe Thunderstorm Warning	DMX	Sac	45 min
Jul 24, 6:17 PM CDT	Severe Thunderstorm Warning	DMX	Carroll	44 min
Jul 24, 6:50 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Hardin	41 min

Nearby

Tornado Warnings in Iowa, 2005 Every tornado warning in 2005 Tornadoes in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.