Alert archive / Iowa / Tornado Warnings in 2008

Tornado Warning 59, NWS Des Moines, IA

June 6, 20084 counties in Iowa

NWS Des Moines, IA issued this tornado warning at Jun 6, 2008, 12:59 AM CDT for 4 counties in Iowa. It was in force for 46 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 6, 2008, 12:59 AM CDT (05:59 UTC)
Expired
Jun 6, 2008, 1:45 AM CDT
In force
46 min
Issued by
NWS Des Moines, IA
Area
Storm-based polygon

Counties Jasper County, IA, Marshall County, IA, Poweshiek County, IA, Tama County, IA

The radar

The Des Moines radar (KDMX), 88 km from the middle of the area, began a volume at 05:59 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 6, 1:05 AM CDTTSTM WND DMGGilman, IAPOWER POLES LEANING AT A 45 DEGREE ANGLE. A HIGHWAY SIGN SNAPPED OFF. LARGE TREE BRANCHES DOWN.
Jun 6, 1:39 AM CDTTSTM WND GST 63Tama, IAFROM TAMA RWIS STATION.

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 5, 9:14 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 6.0 hours before the alert went out and 185 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 2008-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1315 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 2008-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
1315 J/kg
Mixed-layer CIN
-114 J/kg
Mixed-layer LCL
1479 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDMX 060559
TORDMX
IAC099-127-157-171-060645-
/O.NEW.KDMX.TO.W.0059.080606T0559Z-080606T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1259 AM CDT FRI JUN 6 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN JASPER COUNTY IN CENTRAL IOWA...
  SOUTHEASTERN MARSHALL COUNTY IN CENTRAL IOWA...
  NORTHWESTERN POWESHIEK COUNTY IN CENTRAL IOWA...
  SOUTHERN TAMA COUNTY IN CENTRAL IOWA...

* UNTIL 145 AM CDT.

* AT 1254 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS
  TRACKING A TORNADO NEAR KELLOGG...OR 39 MILES EAST OF DES MOINES...
  MOVING NORTHEAST AT 50 MPH.

* THE TORNADO WILL BE NEAR...
  GILMAN BY 105 AM CDT...
  TAMA AND MONTOUR BY 110 AM CDT...
  TOLEDO AND GARWIN BY 115 AM CDT...
  CLUTIER BY 120 AM CDT...

THIS WARNING REPLACES THE PREVIOUS TORNADO WARNING IN EFFECT FOR 
JASPER COUNTY.

THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 174 AND 178.

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 4165 9285 4182 9308 4221 9277 4210 9230
      4208 9230
TIME...MOT...LOC 0559Z 217DEG 66KT 4180 9281

$$

DONAVON
3 follow-up statements
000 
WWUS53 KDMX 060609
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
109 AM CDT FRI JUN 6 2008

IAC099-127-157-171-060645-
/O.CON.KDMX.TO.W.0059.000000T0000Z-080606T0645Z/
TAMA IA-MARSHALL IA-JASPER IA-POWESHIEK IA-
109 AM CDT FRI JUN 6 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FOR
NORTHWESTERN POWESHIEK...NORTHEASTERN JASPER...SOUTHEASTERN MARSHALL
AND SOUTHERN TAMA COUNTIES...

AT 104 AM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR GILMAN...OR 37 MILES WEST OF MARENGO...
MOVING NORTHEAST AT 63 MPH.

THE TORNADO WILL BE NEAR...
  TOLEDO AND TAMA BY 115 AM CDT...
  6 MILES SOUTHEAST OF GARWIN BY 120 AM CDT...
  6 MILES NORTHWEST OF CLUTIER BY 125 AM CDT...

THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 175 AND 178.

WIND DAMAGE WAS REPORTED EARLIER IN KELLOGG WITH THIS STORM.

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

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FRIDAY MORNING FOR
EASTERN IOWA.

LAT...LON 4165 9285 4182 9308 4221 9277 4210 9230
      4208 9230
TIME...MOT...LOC 0609Z 218DEG 55KT 4192 9271

$$

DONAVON
000 
WWUS53 KDMX 060632
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
132 AM CDT FRI JUN 6 2008

IAC099-127-157-060642-
/O.CAN.KDMX.TO.W.0059.000000T0000Z-080606T0645Z/
MARSHALL IA-JASPER IA-POWESHIEK IA-
132 AM CDT FRI JUN 6 2008

...THE TORNADO WARNING FOR NORTHWESTERN POWESHIEK...NORTHEASTERN
JASPER AND SOUTHEASTERN MARSHALL COUNTIES IS CANCELLED...

AT 127 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE EITHER WEAKENED OR
MOVED OUT OF THE AREA...AND NO LONGER POSE AN IMMEDIATE THREAT TO
LIFE OR PROPERTY. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FRIDAY MORNING FOR
EASTERN IOWA.

LAT...LON 4208 9230 4198 9242 4197 9243 4197 9244
      4195 9245 4186 9258 4215 9278 4220 9278
      4221 9277 4210 9230
TIME...MOT...LOC 0632Z 218DEG 55KT 4219 9241

$$

IAC171-060645-
/O.CON.KDMX.TO.W.0059.000000T0000Z-080606T0645Z/
TAMA IA-
132 AM CDT FRI JUN 6 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FOR SOUTHERN
TAMA COUNTY...

AT 127 AM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO.  THIS
TORNADO WAS LOCATED NEAR CLUTIER...OR 23 MILES WEST OF VINTON...
MOVING NORTHEAST AT 53 MPH.

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

LAT...LON 4208 9230 4198 9242 4197 9243 4197 9244
      4195 9245 4186 9258 4215 9278 4220 9278
      4221 9277 4210 9230
TIME...MOT...LOC 0632Z 218DEG 55KT 4219 9241

$$

KINNEY
000 
WWUS53 KDMX 060645
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
145 AM CDT FRI JUN 6 2008

IAC171-060655-
/O.EXP.KDMX.TO.W.0059.000000T0000Z-080606T0645Z/
TAMA IA-
145 AM CDT FRI JUN 6 2008

...THE TORNADO WARNING FOR SOUTHERN TAMA COUNTY HAS EXPIRED...

AT 141 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE
THUNDERSTORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE...THE TORNADO WARNING HAS BEEN ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT FRIDAY MORNING FOR
EASTERN IOWA.

LAT...LON 4208 9230 4198 9242 4197 9243 4197 9244
      4195 9245 4186 9258 4215 9278 4220 9278
      4221 9277 4210 9230
TIME...MOT...LOC 0645Z 218DEG 55KT 4234 9224

$$

KINNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 7:40 PM CDTFlash Flood WarningDMXAdams, Cass6 hr
Jun 5, 8:00 PM CDTTornado WarningDMXAdair, Adams, Cass34 min
Jun 5, 8:25 PM CDTTornado WarningDMXAdair, Audubon, Cass, Guthrie36 min
Jun 5, 8:27 PM CDTTornado WarningDMXTaylor48 min
Jun 5, 8:30 PM CDTFlash Flood WarningDMXAdair, Adams, Taylor6 hr
Jun 5, 9:05 PM CDTTornado WarningDMXAdams, Ringgold, Union40 min
Jun 5, 9:09 PM CDTSevere Thunderstorm WarningDMXRinggold, Union51 min
Jun 5, 9:15 PM CDTFlash Flood WarningDMXRinggold, Union6 hr
Jun 5, 9:17 PM CDTHigh Wind WarningDMXCalhoun, Emmet, Palo Alto, Pocahontas, Sac4 hr
Jun 5, 9:37 PM CDTSevere Thunderstorm WarningDMXAdair, Clarke, Madison, Union38 min
Jun 5, 10:01 PM CDTSevere Thunderstorm WarningDMXClarke, Decatur, Ringgold, Union44 min
Jun 5, 10:12 PM CDTTornado WarningDMXDallas, Polk21 min
Jun 5, 10:13 PM CDTRiver Flood WarningDMXAppanoose, Wayne19 hr
Jun 5, 11:00 PM CDTFlash Flood WarningDMXAdair, Clarke, Madison, Warren5 hr
Jun 5, 11:14 PM CDTFlash Flood WarningDMXBoone, Dallas, Polk, Story6 hr
Jun 5, 11:22 PM CDTTornado WarningDMXDecatur, Ringgold23 min
Jun 5, 11:30 PM CDTFlash Flood WarningDMXDecatur4 hr
Jun 5, 11:42 PM CDTTornado WarningDMXClarke33 min
Jun 5, 11:44 PM CDTSevere Thunderstorm WarningDMXDecatur31 min
Jun 5, 11:55 PM CDTRiver Flood WarningDMXPolk9 hr
Jun 5, 11:57 PM CDTSevere Thunderstorm WarningDMXLucas, Wayne48 min
Jun 6, 12:02 AM CDTTornado WarningDMXMarion, Warren43 min
Jun 6, 12:20 AM CDTSevere Thunderstorm WarningDMXMarion, Warren40 min
Jun 6, 12:32 AM CDTTornado WarningDMXJasper28 min
Jun 6, 12:46 AM CDTRiver Flood WarningDMXPolk28 hr
Jun 6, 12:47 AM CDTSevere Thunderstorm WarningDMXMarshall43 min
Jun 6, 12:50 AM CDTSevere Thunderstorm WarningDMXMahaska, Poweshiek40 min
Jun 6, 12:55 AM CDTFlash Flood WarningDMXWarren3 hr
Jun 6, 1:08 AM CDTSevere Thunderstorm WarningDMXButler, Grundy, Tama52 min
Jun 6, 1:21 AM CDTRiver Flood WarningDMXTaylor5 hr
Jun 6, 1:21 AM CDTTornado WarningDMXPoweshiek, Tama24 min
Jun 6, 1:26 AM CDTTornado WarningDMXBlack Hawk, Tama34 min
Jun 6, 1:36 AM CDTSevere Thunderstorm WarningDMXBlack Hawk, Bremer39 min
Jun 6, 3:50 AM CDTWind AdvisoryDMXAdair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more12 hr
Jun 6, 3:56 AM CDTAreal Flood WarningDMXMadison20 hr
Jun 6, 4:13 AM CDTAreal Flood WarningDMXWarren15 hr
Jun 6, 5:03 AM CDTAreal Flood WarningDMXPolk6 hr
Jun 6, 5:08 AM CDTAreal Flood WarningDMXStory6 hr
Jun 6, 11:08 AM CDTAreal Flood WarningDMXPolk6 hr
Jun 6, 11:13 AM CDTAreal Flood WarningDMXStory24 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.