Alert archive / Iowa / Tornado Warnings in 2008

Tornado Warning 44, NWS Sioux Falls, SD

June 26, 2008Buena Vista County, Cherokee County, Ida County, Iowa

NWS Sioux Falls, SD issued this tornado warning at Jun 26, 2008, 6:38 AM CDT for Buena Vista County, Cherokee County, Ida County, Iowa. It was in force for 37 min. 2 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
Jun 26, 2008, 6:38 AM CDT (11:38 UTC)
Expired
Jun 26, 2008, 7:15 AM CDT
In force
37 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon

Counties Buena Vista County, IA, Cherokee County, IA, Ida County, IA

The radar

The Omaha radar (KOAX), 155 km from the middle of the area, began a volume at 11:39 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

TimeReportWhereRemark
Jun 26, 7:00 AM CDTHAIL 1.75Wnw Galva, IA
Jun 26, 7:15 AM CDTHAIL 13 E Holstein, IADIME TO QUARTER SIZE HAIL.

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.

IssuedProductOfficeLasted
Jun 26, 6:38 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 11.6 hours before the alert went out and 155 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 00:00Z on 2008-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4603 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, Omaha, NE at 00:00Z on 2008-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
4603 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1165 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
114 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 
WFUS53 KFSD 261138
TORFSD
IAC021-035-093-261215-
/O.NEW.KFSD.TO.W.0044.080626T1138Z-080626T1215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
638 AM CDT THU JUN 26 2008

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN BUENA VISTA COUNTY IN NORTHWEST IOWA
  SOUTHEASTERN CHEROKEE COUNTY IN NORTHWEST IOWA
  NORTHERN IDA COUNTY IN NORTHWEST IOWA

* UNTIL 715 AM CDT

* AT 638 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR HOLSTEIN...
  OR 11 MILES NORTH OF IDA GROVE...MOVING EAST AT 13 MPH.

* THE TORNADO WILL BE NEAR...
   GALVA AROUND 655 AM CDT...

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. TAKE
COVER NOW.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND
NORTHEAST NEBRASKA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4242 9563 4263 9561 4261 9520 4256 9521
      4255 9522 4255 9539 4249 9538 4248 9534
      4247 9533 4238 9533
TIME...MOT...LOC 1138Z 277DEG 11KT 4250 9550

$$

LIEBL
2 follow-up statements
000 
WWUS53 KFSD 261147
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
648 AM CDT THU JUN 26 2008

IAC021-035-093-261215-
/O.CON.KFSD.TO.W.0044.000000T0000Z-080626T1215Z/
CHEROKEE IA-BUENA VISTA IA-IDA IA-
648 AM CDT THU JUN 26 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 AM CDT FOR NORTHERN
IDA...SOUTHWESTERN BUENA VISTA AND SOUTHEASTERN CHEROKEE COUNTIES...

AT 648 AM CDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS TORNADO WAS
LOCATED NEAR GALVA...OR 11 MILES NORTH OF IDA GROVE...MOVING EAST AT
15 MPH.

THE TORNADO WILL BE NEAR...
  RURAL IDA COUNTY THROUGH 700 AM CDT

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. TAKE
COVER NOW.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND
NORTHEAST NEBRASKA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4242 9563 4263 9561 4261 9520 4256 9521
      4255 9522 4255 9539 4249 9538 4248 9534
      4247 9533 4238 9533
TIME...MOT...LOC 1148Z 276DEG 11KT 4250 9543

$$

LIEBL
000 
WWUS53 KFSD 261214
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
714 AM CDT THU JUN 26 2008

IAC021-035-093-261224-
/O.EXP.KFSD.TO.W.0044.000000T0000Z-080626T1215Z/
CHEROKEE IA-BUENA VISTA IA-IDA IA-
714 AM CDT THU JUN 26 2008

...THE TORNADO WARNING FOR NORTHERN IDA...SOUTHWESTERN BUENA VISTA
AND SOUTHEASTERN CHEROKEE COUNTIES WILL EXPIRE AT 715 AM CDT...

THE STORM HAS EXITED THE WARNED AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 PM CDT
THURSDAY AFTERNOON FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA AND
NORTHEAST NEBRASKA AND SOUTHEASTERN SOUTH DAKOTA.

LAT...LON 4242 9563 4263 9561 4261 9520 4256 9521
      4255 9522 4255 9539 4249 9538 4248 9534
      4247 9533 4238 9533
TIME...MOT...LOC 1214Z 276DEG 11KT 4249 9532

$$

LIEBL

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 4:30 AM CDTSevere Thunderstorm WarningFSDLyon30 min
Jun 26, 5:45 AM CDTSevere Thunderstorm WarningFSDPlymouth, Sioux45 min
Jun 26, 6:06 AM CDTSevere Thunderstorm WarningFSDBuena Vista, Cherokee24 min
Jun 26, 6:27 AM CDTSevere Thunderstorm WarningFSDPlymouth48 min
Jun 26, 6:50 AM CDTFlash Flood WarningFSDPlymouth, Woodbury2 hr
Jun 26, 6:56 AM CDTSevere Thunderstorm WarningFSDWoodbury49 min
Jun 26, 7:22 AM CDTSevere Thunderstorm WarningFSDIda38 min
Jun 26, 3:06 PM CDTFlash Flood WatchFSDBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more12 hr

Nearby

Tornado Warnings in Iowa, 2008Every tornado warning in 2008Tornadoes in 2008

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.