Alert archive / Iowa / Tornado Warnings in 2015

Tornado Warning 15, NWS Des Moines, IA

June 24, 2015Guthrie County, Iowa

NWS Des Moines, IA issued this tornado warning at Jun 24, 2015, 6:57 PM CDT for Guthrie County, Iowa. It was in force for 48 min. 7 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 24, 2015, 6:57 PM CDT (23:57 UTC)
Expired
Jun 24, 2015, 7:45 PM CDT
In force
48 min
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Guthrie County, IA

The radar

The Des Moines radar (KDMX), 60 km from the middle of the area, began a volume at 23:57 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 24, 7:03 PM CDTTORNADO6 Ssw Panora, IA
Jun 24, 7:07 PM CDTHAIL 1.75Guthrie Center, IASPOTTER REPORTED 1.75 INCH HAIL AT HIS HOME
Jun 24, 7:13 PM CDTTSTM WND GST 603 Sw Linden, IA60 MPH OR HIGHER WIND GUST...7 SOUTH OF PANORA ON WAGON RD. ONGOING.
Jun 24, 7:15 PM CDTFUNNEL CLOUD1 N Stuart, IASTUART FD REPORTING FUNNEL CLOUD JUST NORTH OF STUART, IA
Jun 24, 7:21 PM CDTHAIL 1.755 Nne Menlo, IA
Jun 24, 7:24 PM CDTTSTM WND DMGMenlo, IAPOWER LINES DOWN IN MENLO - WINDS ESTIMATED BETWEEN 50-55 MPH OR HIGHER. LARGE HAIL ALSO BEING REPORTED AT 732 PM
Jun 24, 7:54 PM CDTTSTM WND DMG5 N Menlo, IA8 TO 10 INCH LIMBS SNAPPED OFF TREES.

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 24, 6:21 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 12.0 hours before the alert went out and 165 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 2015-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 115 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 12:00Z on 2015-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 400 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
115 J/kg
Mixed-layer CIN
-531 J/kg
Mixed-layer LCL
1022 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
400 m²/s²
0-3 km storm-relative helicity
373 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

424 
WFUS53 KDMX 242357
TORDMX
IAC077-250045-
/O.NEW.KDMX.TO.W.0015.150624T2357Z-150625T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
657 PM CDT WED JUN 24 2015

THE NATIONAL WEATHER SERVICE IN DES MOINES  HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN GUTHRIE COUNTY IN WEST CENTRAL IOWA...

* UNTIL 745 PM CDT
    
* AT 657 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR GUTHRIE CENTER...MOVING SOUTHEAST AT 25
  MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  STUART AROUND 730 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE MENLO
AND DIAMONDHEAD LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4173 9453 4172 9444 4162 9430 4151 9424
      4150 9448 4164 9455
TIME...MOT...LOC 2357Z 322DEG 20KT 4165 9446 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

COGIL
3 follow-up statements
078 
WWUS53 KDMX 250009
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
709 PM CDT WED JUN 24 2015

IAC077-250045-
/O.CON.KDMX.TO.W.0015.000000T0000Z-150625T0045Z/
GUTHRIE IA-
709 PM CDT WED JUN 24 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
SOUTHEASTERN GUTHRIE COUNTY...
    
AT 709 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 6 MILES SOUTHWEST OF PANORA...OR 6 MILES SOUTHEAST OF
GUTHRIE CENTER...MOVING SOUTHEAST AT 25 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  STUART AROUND 730 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE MENLO
AND DIAMONDHEAD LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4173 9453 4172 9444 4162 9430 4151 9424
      4150 9448 4164 9455
TIME...MOT...LOC 0009Z 324DEG 21KT 4160 9441 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

COGIL
358 
WWUS53 KDMX 250021
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
721 PM CDT WED JUN 24 2015

IAC077-250045-
/O.CON.KDMX.TO.W.0015.000000T0000Z-150625T0045Z/
GUTHRIE IA-
721 PM CDT WED JUN 24 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
SOUTHEASTERN GUTHRIE COUNTY...
    
AT 721 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR STUART...OR 11 MILES SOUTHEAST OF GUTHRIE CENTER...
MOVING SOUTHEAST AT 25 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  STUART AROUND 730 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE MENLO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4161 9440 4158 9429 4151 9425 4150 9448
      4157 9445
TIME...MOT...LOC 0021Z 322DEG 20KT 4155 9435 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

COGIL
932 
WWUS53 KDMX 250036
SVSDMX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
736 PM CDT WED JUN 24 2015

IAC077-250046-
/O.EXP.KDMX.TO.W.0015.000000T0000Z-150625T0045Z/
GUTHRIE IA-
736 PM CDT WED JUN 24 2015

...THE TORNADO WARNING FOR SOUTHEASTERN GUTHRIE COUNTY WILL EXPIRE AT
745 PM CDT...
    
THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...LARGE HAIL AND DAMAGING WINDS REMAIN LIKELY
AND A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR SOUTHWESTERN
IOWA.

LAT...LON 4161 9440 4158 9429 4151 9425 4150 9448
      4157 9445
TIME...MOT...LOC 0034Z 322DEG 20KT 4155 9435 

$$

COGIL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 3:00 AM CDTSevere Thunderstorm WarningDMXCrawford30 min
Jun 24, 3:29 AM CDTSevere Thunderstorm WarningDMXCarroll, Crawford, Sac31 min
Jun 24, 4:03 AM CDTSevere Thunderstorm WarningDMXCalhoun, Carroll13 min
Jun 24, 11:48 AM CDTSpecial Weather StatementDMXBoone, Dallas, Story72 min
Jun 24, 12:29 PM CDTSpecial Weather StatementDMXCarroll, Crawford, Sac61 min
Jun 24, 12:36 PM CDTSevere Thunderstorm WarningDMXCarroll, Crawford, Sac54 min
Jun 24, 1:20 PM CDTSpecial Weather StatementDMXCalhoun55 min
Jun 24, 6:20 PM CDTSevere Thunderstorm WarningDMXDallas, Guthrie55 min
Jun 24, 6:31 PM CDTSevere Thunderstorm WarningDMXGuthrie44 min
Jun 24, 6:50 PM CDTSevere Thunderstorm WarningDMXDallas, Guthrie35 min

Nearby

Tornado Warnings in Iowa, 2015Every tornado warning in 2015Tornadoes in 2015

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.