Alert archive / Missouri / Tornado Warnings in 2007

Tornado Warning 68, NWS Springfield, MO

October 17, 2007Polk County, Missouri

NWS Springfield, MO issued this tornado warning at Oct 17, 2007, 6:38 PM CDT for Polk County, Missouri. It was in force for 34 min. 4 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: Oct 17, 2007, 6:38 PM CDT (23:38 UTC)
Expired: Oct 17, 2007, 7:12 PM CDT
In force: 34 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon

County Polk County, MO

The radar

The Springfield radar (KSGF), 34 km from the middle of the area, began a volume at 23:38 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
Oct 17, 6:40 PM CDT	HAIL 0.7	Morrisville, MO
Oct 17, 6:46 PM CDT	TORNADO	3 S Morrisville, MO	TORNADO REPORTED ON THE GROUND SOUTH OF MORRISVILLE...HOWEVER NO DAMAGE HAS BEEN REPORTED AT THIS TIME.
Oct 17, 6:48 PM CDT	TORNADO	1 S Morrisville, MO	TORNADO REMAINS ON THE GROUND SOUTH OF MORRISVILLE AT THE JUNCTION OF POLK COUNTY ROAD 111 AND FARM ROAD 560. THE TORNADO WAS REPORTED MOVING RAPIDLY NORTH NORTHWEST.
Oct 17, 6:57 PM CDT	FUNNEL CLOUD	Morrisville, MO	A WALL CLOUD WAS ROTATING OVER THE TOWN OF MORRISVILLE.

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
Oct 17, 5:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.6 hours before the alert went out and 80 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: 389 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 632 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 218 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KSGF 172338
TORSGF
MOC167-180045-
/O.NEW.KSGF.TO.W.0068.071017T2338Z-071018T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
638 PM CDT WED OCT 17 2007

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN POLK COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 745 PM CDT.

* AT 634 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS VERY
  DANGEROUS STORM WAS LOCATED NEAR WILLARD...OR 15 MILES NORTHWEST OF
  SPRINGFIELD...MOVING NORTHEAST AT 25 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  MORRISVILLE BY 655 PM CDT.
  PLEASANT HOPE BY 700 PM CDT.
  8 MILES SOUTHEAST OF BOLIVAR BY 710 PM CDT.

THE TOWNS OF BRIGHTON...HALF WAY AND GOODSON ARE ALSO IN THE PATH OF
THIS TORNADIC STORM.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THIS STORM HAS A HISTORY OF PRODUCING TORNADOES IN LAWRENCE COUNTY.

LAT...LON 3744 9360 3781 9322 3772 9318 3753 9318
      3742 9329 3742 9357
TIME...MOT...LOC 2338Z 214DEG 25KT 3737 9345

$$

WISE

2 follow-up statements

000 
WWUS53 KSGF 172353
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
653 PM CDT WED OCT 17 2007

MOC167-180045-
/O.CON.KSGF.TO.W.0068.000000T0000Z-071018T0045Z/
POLK MO-
653 PM CDT WED OCT 17 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EASTERN
POLK COUNTY...

AT 648 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
TRACK A CONFIRMED TORNADO NEAR BRIGHTON...OR 13 MILES SOUTH OF
BOLIVAR...MOVING NORTHEAST AT 25 MPH.

A TORNADO WAS CONFIRMED BY STORM SPOTTERS THREE MILES SOUTH OF 
MORRISVILLE.

THE TORNADO WILL BE NEAR...
  PLEASANT HOPE BY 700 PM CDT.
  8 MILES SOUTHEAST OF BOLIVAR BY 710 PM CDT.

THE TOWNS OF HALF WAY AND GOODSON ARE IN THE PATH OF THIS TORNADO.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3744 9360 3781 9322 3772 9318 3753 9318
      3742 9329 3742 9357
TIME...MOT...LOC 2353Z 214DEG 25KT 3746 9338

$$

WISE

000 
WWUS53 KSGF 180012
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
712 PM CDT WED OCT 17 2007

MOC167-180022-
/O.CAN.KSGF.TO.W.0068.000000T0000Z-071018T0045Z/
POLK MO-
712 PM CDT WED OCT 17 2007

...THE TORNADO WARNING FOR EASTERN POLK COUNTY IS CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM THAT
PROMPTED THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN
CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT THURSDAY MORNING
FOR SOUTHEAST KANSAS AND SOUTHERN MISSOURI.

LAT...LON 3744 9360 3781 9322 3772 9318 3753 9318
      3742 9329 3742 9357
TIME...MOT...LOC 0012Z 214DEG 25KT 3757 9329

$$

WISE

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 17, 3:22 AM CDT	Dense Fog Advisory	SGF	Dent, Douglas, Howell, Oregon, Ozark, Shannon and 1 more	3 hr
Oct 17, 2:48 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	37 min
Oct 17, 4:33 PM CDT	Tornado Warning	SGF	McDonald	42 min
Oct 17, 4:56 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	34 min
Oct 17, 5:10 PM CDT	Tornado Warning	SGF	Barry, Newton	36 min
Oct 17, 5:24 PM CDT	Severe Thunderstorm Warning	SGF	Vernon	36 min
Oct 17, 5:34 PM CDT	Tornado Warning	SGF	Lawrence	41 min
Oct 17, 5:52 PM CDT	Severe Thunderstorm Warning	SGF	Barton	53 min
Oct 17, 6:02 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, St. Clair, Vernon	58 min
Oct 17, 6:03 PM CDT	Tornado Warning	SGF	Christian, Greene	57 min
Oct 17, 6:08 PM CDT	Tornado Warning	SGF	Barton, Cedar, Vernon	43 min
Oct 17, 6:39 PM CDT	Tornado Warning	SGF	St. Clair, Vernon	21 min

Nearby

Tornado Warnings in Missouri, 2007 Every tornado warning in 2007 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.