Alert archive / Illinois / Tornado Warnings in 2009
Tornado Warning 54, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Jul 16, 2009, 10:28 PM CDT for Marion County, Illinois. It was in force for 32 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
- Jul 16, 2009, 10:28 PM CDT (03:28 UTC)
- Expired
- Jul 16, 2009, 11:00 PM CDT
- In force
- 32 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
County Marion County, IL
The radar
The Evansville,IN radar (KVWX), 100 km from the middle of the area, began a volume at 03:28 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 |
|---|---|---|---|
| Jul 16, 10:30 PM CDT | TORNADO | Iuka, IL | 2 BARNS DESTROYED NEAR IUKA...POSSIBLE TORNADO |
| Jul 16, 10:35 PM CDT | TSTM WND DMG | Iuka, IL | REPORT OF NUMEROUS TREES DOWN IN TOWN WITH TREES ON HOUSES AND STREETS BLOCKED |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.5 hours before the alert went out and 173 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.
- Mixed-layer CAPE
- 257 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1312 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KLSX 170328 TORLSX ILC121-170400- /O.NEW.KLSX.TO.W.0054.090717T0328Z-090717T0400Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1028 PM CDT THU JUL 16 2009 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN MARION COUNTY IN SOUTH CENTRAL ILLINOIS... * UNTIL 1100 PM CDT * AT 1027 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 5 MILES SOUTHWEST OF OMEGA...OR 6 MILES EAST OF SALEM...AND MOVING SOUTHEAST AT 30 MPH. * LOCATIONS IMPACTED INCLUDE... HELM... IUKA... PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A STURDY SHELTER. IF NO SHELTER IS AVAILABLE... LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 3848 8871 3862 8895 3874 8887 3868 8870 TIME...MOT...LOC 0329Z 304DEG 26KT 3864 8883 $$ CARNEY
1 follow-up statement
000 WWUS53 KLSX 170358 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1058 PM CDT THU JUL 16 2009 ILC121-170407- /O.EXP.KLSX.TO.W.0054.000000T0000Z-090717T0400Z/ MARION IL- 1058 PM CDT THU JUL 16 2009 ...THE TORNADO WARNING FOR EASTERN MARION COUNTY WILL EXPIRE AT 1100 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA...HOWEVER SEVERAL SMALLER THUNDERSTORMS WILL CONTINUE TO AFFECT MARION COUNTY AT LEAST THROUGH 1130 PM. SMALL HAIL...GUSTY WINDS AND HEAVY RAIN ARE ALL POSSIBLE WITH THESE STORMS. LAT...LON 3848 8871 3862 8895 3874 8887 3868 8870 TIME...MOT...LOC 0357Z 304DEG 26KT 3853 8862 $$ CARNEY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 8:20 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin, Madison, Montgomery | 40 min |
| Jul 16, 10:04 PM CDT | Areal Flood Advisory | LSX | Bond, Fayette | 6 hr |
| Jul 16, 10:21 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 39 min |
| Jul 16, 10:44 PM CDT | Areal Flood Advisory | LSX | Fayette, Marion | 4 hr |
Nearby
Tornado Warnings in Illinois, 2009Every tornado warning in 2009Tornadoes in 2009
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.