Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 73, NWS Paducah, KY

April 19, 2011Mississippi County, Scott County, Stoddard County, Missouri; Ballard County, Kentucky; 4 counties in Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Apr 19, 2011, 8:37 PM CDT for Mississippi County, Scott County, Stoddard County, Missouri; Ballard County, Kentucky; 4 counties in Illinois. It was in force for 38 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: Apr 19, 2011, 8:37 PM CDT (01:37 UTC)
Expired: Apr 19, 2011, 9:15 PM CDT
In force: 38 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Alexander County, IL, Johnson County, IL, Massac County, IL, Pulaski County, IL, Ballard County, KY, Mississippi County, MO, Scott County, MO, Stoddard County, MO

The radar

The Paducah radar (KPAH), 50 km from the middle of the area, began a volume at 01:40 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
Apr 19, 9:15 PM CDT	TSTM WND DMG	Thebes, IL	TREES DOWN OUTSIDE OF COMMUNITY ALONG HASTINGS RANCH ROAD.

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
Apr 19, 6:46 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.6 hours before the alert went out and 265 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: 1605 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 2015 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 173 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 10.6

Open this sounding in Storm Lab

The text

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

007 
WUUS53 KPAH 200137
SVRPAH
ILC003-087-127-153-KYC007-MOC133-201-207-200215-
/O.NEW.KPAH.SV.W.0073.110420T0137Z-110420T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
837 PM CDT TUE APR 19 2011

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MISSISSIPPI COUNTY IN SOUTHEAST MISSOURI...
  SCOTT COUNTY IN SOUTHEAST MISSOURI...
  NORTHEASTERN STODDARD COUNTY IN SOUTHEAST MISSOURI...
  ALEXANDER COUNTY IN SOUTHERN ILLINOIS...
  SOUTHWESTERN JOHNSON COUNTY IN SOUTHERN ILLINOIS...
  NORTHWESTERN MASSAC COUNTY IN SOUTHERN ILLINOIS...
  PULASKI COUNTY IN SOUTHERN ILLINOIS...
  BALLARD COUNTY IN WESTERN KENTUCKY...

* UNTIL 915 PM CDT.

* AT 835 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 70 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 11 MILES NORTH OF TAMMS TO 11
  MILES SOUTHWEST OF BELL CITY..AND MOVING EAST AT 55 MPH.

  DAMAGING WIND GUSTS HAVE BEEN REPORTED WITH THIS LINE IN CAPE 
  GIRARDEAU COUNTY. WINDS WERE MEASURED TO 58 MPH AT THE CAPE 
  GIRARDEAU AIRPORT AT 829 PM. 

* LOCATIONS IN THE WARNING INCLUDE...
  BELL CITY...
  SCOTT CITY...
  KELSO...
  ORAN...
  MORLEY...
  BENTON...
  TAMMS...
  HAY-WOOD CITY...
  OLIVE BRANCH...
  HORSESHOE LAKE CONSERVATION AREA...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A VERY DANGEROUS STORM CAPABLE OF BLOWING DOWN TREES AND
POWER POLES. MOVE INDOORS TO A SUBSTANTIAL SHELTER SUCH AS A BASEMENT
OR INTERIOR ROOM OR HALLWAY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT WEDNESDAY MORNING
FOR SOUTHEASTERN ILLINOIS AND SOUTHWEST INDIANA AND WESTERN KENTUCKY
AND SOUTHEAST MISSOURI.

&&

LAT...LON 3691 9003 3724 8954 3725 8950 3727 8950
      3734 8940 3734 8871 3719 8886 3721 8893
      3715 8890 3694 8911
TIME...MOT...LOC 0136Z 270DEG 46KT 3739 8930 3691 8995
WIND...HAIL 70MPH 1.00IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 7:19 PM CDT	Severe Thunderstorm Warning	PAH	Butler, Carter, Wayne	41 min
Apr 19, 7:34 PM CDT	Severe Thunderstorm Warning	PAH	Butler, Carter, Ripley	56 min
Apr 19, 7:43 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger, Cape Girardeau, Perry, Scott, Stoddard, Wayne	62 min
Apr 19, 7:48 PM CDT	Tornado Warning	PAH	Bollinger, Wayne	27 min
Apr 19, 7:49 PM CDT	Tornado Warning	PAH	Bollinger, Cape Girardeau, Perry	26 min
Apr 19, 7:52 PM CDT	Areal Flood Advisory	PAH	Bollinger, Butler, Carter, Perry, Ripley, Wayne	3 hr
Apr 19, 7:58 PM CDT	Severe Thunderstorm Warning	PAH	Butler, Carter, Wayne	32 min
Apr 19, 8:02 PM CDT	Tornado Warning	PAH	Perry	18 min
Apr 19, 8:03 PM CDT	Tornado Warning	PAH	Bollinger, Cape Girardeau, Stoddard, Wayne	27 min
Apr 19, 8:14 PM CDT	Tornado Warning	PAH	Cape Girardeau, Perry	31 min
Apr 19, 8:21 PM CDT	Severe Thunderstorm Warning	PAH	Carter	24 min
Apr 19, 8:25 PM CDT	Severe Thunderstorm Warning	PAH	Butler, Ripley, Stoddard, Wayne	35 min
Apr 19, 8:27 PM CDT	Areal Flood Advisory	PAH	Cape Girardeau, Scott, Stoddard	3 hr
Apr 19, 8:34 PM CDT	Tornado Warning	PAH	Bollinger, Stoddard, Wayne	26 min
Apr 19, 9:01 PM CDT	Severe Thunderstorm Warning	PAH	Mississippi, Scott	44 min
Apr 19, 9:13 PM CDT	Tornado Warning	PAH	Bollinger, Cape Girardeau, Mississippi, Scott, Stoddard	32 min
Apr 19, 9:30 PM CDT	Tornado Warning	PAH	Cape Girardeau, Scott, Stoddard	30 min
Apr 19, 9:39 PM CDT	Tornado Warning	PAH	Mississippi, New Madrid, Scott, Stoddard	36 min
Apr 19, 9:46 PM CDT	Severe Thunderstorm Warning	PAH	Mississippi	59 min
Apr 19, 9:54 PM CDT	Severe Thunderstorm Warning	PAH	Mississippi, New Madrid	51 min
Apr 19, 9:54 PM CDT	Tornado Warning	PAH	Cape Girardeau, Mississippi, Scott	20 min
Apr 19, 9:58 PM CDT	Areal Flood Advisory	PAH	Mississippi, New Madrid	3 hr
Apr 19, 9:19 PM CDT	Areal Flood Advisory	PAH	Union	3 hr
Apr 19, 9:20 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Crittenden, Daviess, Henderson, Hopkins, McLean and 3 more	55 min
Apr 19, 9:46 PM CDT	Areal Flood Advisory	PAH	Daviess, Henderson, McLean, Webster	3 hr
Apr 19, 10:00 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Crittenden, Hopkins, Livingston, Lyon, Marshall	30 min
Apr 19, 10:09 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Crittenden, Daviess, Henderson, Hopkins, McLean and 3 more	66 min
Apr 19, 10:28 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Crittenden, Graves, Hopkins, Livingston and 6 more	62 min
Apr 19, 10:46 PM CDT	Severe Thunderstorm Warning	PAH	Ballard, Calloway, Carlisle, Fulton, Graves, Hickman and 3 more	59 min
Apr 19, 11:03 PM CDT	Areal Flood Advisory	PAH	Caldwell, Crittenden, Graves, Hopkins, Livingston, Lyon and 2 more	3 hr
Apr 19, 11:30 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Hopkins, Livingston, Lyon, Marshall and 3 more	30 min
Apr 19, 11:44 PM CDT	Severe Thunderstorm Warning	PAH	Calloway, Fulton, Graves, Hickman, Marshall, Trigg	46 min
Apr 20, 12:11 AM CDT	Tornado Warning	PAH	Calloway, Marshall, Trigg	21 min
Apr 20, 12:26 AM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Lyon, Muhlenberg, Todd, Trigg	49 min
Apr 20, 12:42 AM CDT	Tornado Warning	PAH	Christian, Todd	33 min
Apr 19, 8:15 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Jackson, Jefferson, Johnson, Perry, Union and 1 more	60 min
Apr 19, 8:26 PM CDT	Tornado Warning	PAH	Jackson, Perry	18 min
Apr 19, 8:47 PM CDT	Areal Flood Advisory	PAH	Franklin, Jefferson, Johnson, Pulaski, Williamson	3 hr
Apr 19, 8:50 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Franklin, Gallatin, Hamilton, Hardin, Jefferson and 4 more	55 min
Apr 19, 8:53 PM CDT	Tornado Warning	PAH	Jefferson, Perry, Wayne	37 min
Apr 19, 9:13 PM CDT	Tornado Warning	PAH	Hamilton, White	32 min
Apr 19, 9:17 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Gallatin, Wabash, White	58 min
Apr 19, 9:26 PM CDT	Tornado Warning	PAH	Wayne	23 min
Apr 19, 9:29 PM CDT	Tornado Warning	PAH	White	31 min
Apr 19, 9:35 PM CDT	Tornado Warning	PAH	Edwards, Wabash, Wayne	25 min
Apr 19, 10:07 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Gallatin, Wabash, White	53 min
Apr 20, 10:05 AM CDT	River Flood Warning	PAH	Gallatin, Wayne, White	50 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2011 Severe Thunderstorm Warnings in Missouri, 2011 Severe Thunderstorm Warnings in Kentucky, 2011 Every severe thunderstorm warning in 2011

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.