Alert archive / Illinois / Tornado Warnings in 2009
Tornado Warning 31, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at Jul 8, 2009, 5:07 PM CDT for Logan County, Mason County, Menard County, Illinois. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2009, 5:07 PM CDT (22:07 UTC)
- Expired
- Jul 8, 2009, 5:45 PM CDT
- In force
- 38 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
Counties Logan County, IL, Mason County, IL, Menard County, IL
The radar
The Lincoln radar (KILX), 24 km from the middle of the area, began a volume at 22:08 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.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 10.1 hours before the alert went out and 87 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
- 401 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KILX 082207 TORILX ILC107-125-129-082245- /O.NEW.KILX.TO.W.0031.090708T2207Z-090708T2245Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LINCOLN IL 507 PM CDT WED JUL 8 2009 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * TORNADO WARNING FOR... WESTERN LOGAN COUNTY IN CENTRAL ILLINOIS... EASTERN MASON COUNTY IN CENTRAL ILLINOIS... NORTHEASTERN MENARD COUNTY IN CENTRAL ILLINOIS... * UNTIL 545 PM CDT. * AT 505 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR EASTON...AND WAS MOVING SOUTHEAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... MASON CITY... GREENVIEW... NEW HOLLAND... SWEETWATER... MIDDLETOWN... PRECAUTIONARY/PREPAREDNESS ACTIONS... WHEN A TORNADO WARNING IS ISSUED...IT MEANS THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY BE ON THE GROUND... OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS. && LAT...LON 4018 8942 3998 8966 4019 8987 4029 8973 TIME...MOT...LOC 2207Z 307DEG 15KT 4022 8977 $$ BARNES
1 follow-up statement
000 WWUS53 KILX 082241 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 541 PM CDT WED JUL 8 2009 ILC107-125-129-082252- /O.EXP.KILX.TO.W.0031.000000T0000Z-090708T2245Z/ MENARD IL-LOGAN IL-MASON IL- 541 PM CDT WED JUL 8 2009 ...THE TORNADO WARNING FOR EASTERN MASON...WESTERN LOGAN AND NORTHEASTERN MENARD COUNTIES EXPIRES AT 545 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER APPEARED TO BE SEVERE. LAT...LON 4018 8942 3998 8966 4019 8987 4029 8973 TIME...MOT...LOC 2242Z 307DEG 15KT 4013 8962 $$ BARNES
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:23 PM CDT | Special Weather Statement | ILX | Mason | 52 min |
| Jul 8, 3:29 PM CDT | Special Weather Statement | ILX | Cumberland | 61 min |
| Jul 8, 3:37 PM CDT | Areal Flood Advisory | ILX | Coles, Cumberland, Moultrie | 4 hr |
| Jul 8, 4:15 PM CDT | Tornado Warning | ILX | Fulton, Knox, Peoria | 45 min |
| Jul 8, 4:23 PM CDT | Tornado Warning | ILX | Mason | 52 min |
| Jul 8, 5:05 PM CDT | Areal Flood Advisory | ILX | Crawford, Jasper, Lawrence, Richland | 5 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.