Alert archive / Missouri / Tornado Warnings in 2012

Tornado Warning 86, NWS Paducah, KY

September 6, 2012Scott County, Missouri

NWS Paducah, KY issued this tornado warning at Sep 6, 2012, 5:42 PM CDT for Scott County, Missouri. It was in force for 16 min. 1 report 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: Sep 6, 2012, 5:42 PM CDT (22:42 UTC)
Expired: Sep 6, 2012, 5:58 PM CDT
In force: 16 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon

County Scott County, MO

The radar

The Paducah radar (KPAH), 74 km from the middle of the area, began a volume at 22:43 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
Sep 6, 5:52 PM CDT	TSTM WND GST 50	Chaffee, MO

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
Sep 6, 12:28 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.7 hours before the alert went out and 260 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: 2411 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 1359 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: -14 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.

684 
WFUS53 KPAH 062242
TORPAH
MOC201-062315-
/O.NEW.KPAH.TO.W.0086.120906T2242Z-120906T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
542 PM CDT THU SEP 6 2012

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN SCOTT COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 615 PM CDT.

* AT 538 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR
  CHAFFEE...MOVING EAST AT 30 MPH.

* LOCATIONS IN THE WARNED AREA INCLUDE...
  BENTON...KELSO AND LAMBERT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3711 8971 3718 8970 3719 8968 3722 8947
      3720 8946 3707 8946
TIME...MOT...LOC 2242Z 274DEG 14KT 3716 8965

$$

1 follow-up statement

418 
WWUS53 KPAH 062258
SVSPAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PADUCAH KY
558 PM CDT THU SEP 6 2012

MOC201-062308-
/O.CAN.KPAH.TO.W.0086.000000T0000Z-120906T2315Z/
SCOTT MO-
558 PM CDT THU SEP 6 2012

...THE TORNADO WARNING FOR NORTHERN SCOTT COUNTY IN SOUTHEAST
MISSOURI IS CANCELLED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN 
EFFECT FOR THE AREA. DAMAGING STRAIGHT-LINE WINDS ARE EXPECTED IN 
THIS AREA.

LAT...LON 3711 8971 3718 8970 3719 8968 3722 8947
      3720 8946 3707 8946
TIME...MOT...LOC 2258Z 274DEG 14KT 3716 8957

$$
PS

The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 6, 4:00 AM CDT	Dense Fog Advisory	PAH	Bollinger, Butler, Cape Girardeau, Carter, Mississippi, New Madrid and 5 more	5 hr
Sep 6, 4:08 PM CDT	Severe Thunderstorm Warning	PAH	Carter, Ripley, Wayne	37 min
Sep 6, 4:42 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger, Butler, Carter, Ripley, Stoddard, Wayne	48 min
Sep 6, 5:02 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger	28 min
Sep 6, 5:09 PM CDT	Tornado Warning	PAH	Bollinger	36 min
Sep 6, 5:21 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger, Cape Girardeau, New Madrid, Scott, Stoddard	39 min
Sep 6, 5:25 PM CDT	Tornado Warning	PAH	Bollinger, Cape Girardeau	35 min
Sep 6, 5:42 PM CDT	Severe Thunderstorm Warning	PAH	Cape Girardeau, Mississippi, New Madrid, Scott, Stoddard	48 min
Sep 6, 6:08 PM CDT	Severe Thunderstorm Warning	PAH	Mississippi	52 min

Nearby

Tornado Warnings in Missouri, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.