Alert archive / Illinois / Tornado Warnings in 2015
Tornado Warning 18, NWS Lincoln, IL
NWS Lincoln, IL issued this tornado warning at Aug 18, 2015, 6:07 PM CDT for McLean County, Tazewell County, Woodford County, Illinois. It was in force for 23 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
- Aug 18, 2015, 6:07 PM CDT (23:07 UTC)
- Expired
- Aug 18, 2015, 6:30 PM CDT
- In force
- 23 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties McLean County, IL, Tazewell County, IL, Woodford County, IL
The radar
The Lincoln radar (KILX), 71 km from the middle of the area, began a volume at 23:06 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 |
|---|---|---|---|
| Aug 18, 6:09 PM CDT | TORNADO | 2 Ese Mackinaw, IL | DELAYED REPORT. WEAK TORNADO DAMAGED PINE TREES, DOWNED TREE LIMBS ONTO THREE HOMES, AND DAMAGED CROPS IN A PATH 50 TO 75 YARDS WIDE FOR 2 MILES. TORNADO DISSIPATED IN A WOODED AREA 3 MILES ENE OF MACKINAW AROUND 611 PM CDT. TORNADO RATED AS EF-0. |
| Aug 18, 6:12 PM CDT | TSTM WND DMG | Congerville, IL | 4 TO 6 INCH DIAMETER TREE BRANCHES BLOWN DOWN IN CONGERVILLE |
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 |
|---|---|---|---|
| Aug 18, 1:35 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.1 hours before the alert went out and 78 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
- 949 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
189
WFUS53 KILX 182307
TORILX
ILC113-179-203-182330-
/O.NEW.KILX.TO.W.0018.150818T2307Z-150818T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
607 PM CDT TUE AUG 18 2015
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* TORNADO WARNING FOR...
EAST CENTRAL TAZEWELL COUNTY IN CENTRAL ILLINOIS...
NORTHWESTERN MCLEAN COUNTY IN CENTRAL ILLINOIS...
EASTERN WOODFORD COUNTY IN CENTRAL ILLINOIS...
* UNTIL 630 PM CDT
* AT 606 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR GOODFIELD...OR 9 MILES SOUTH OF EUREKA...
MOVING NORTHEAST AT 55 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.
DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE
DAMAGE IS LIKELY.
* THIS DANGEROUS STORM WILL BE NEAR...
EUREKA AND CARLOCK AROUND 615 PM CDT.
ROANOKE AND SECOR AROUND 620 PM CDT.
EL PASO AROUND 625 PM CDT.
MINONK AND GRIDLEY AROUND 630 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CONGERVILLE...EVERGREEN LAKE...PANOLA...BENSON AND KAPPA.
THIS INCLUDES THE FOLLOWING HIGHWAYS...
INTERSTATE 39 BETWEEN MILE MARKERS 8 AND 28.
INTERSTATE 74 BETWEEN MILE MARKERS 107 AND 122.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4092 8893 4075 8893 4075 8884 4045 8927
4057 8944 4093 8906
TIME...MOT...LOC 2306Z 223DEG 49KT 4058 8928
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
HJS2 follow-up statements
039
WWUS53 KILX 182319
SVSILX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
619 PM CDT TUE AUG 18 2015
ILC179-182329-
/O.CAN.KILX.TO.W.0018.000000T0000Z-150818T2330Z/
TAZEWELL-
619 PM CDT TUE AUG 18 2015
...THE TORNADO WARNING FOR EAST CENTRAL TAZEWELL COUNTY IS
CANCELLED...
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR CENTRAL
ILLINOIS.
LAT...LON 4092 8893 4075 8893 4075 8884 4057 8909
4071 8928 4093 8906
TIME...MOT...LOC 2319Z 223DEG 49KT 4071 8912
$$
ILC113-203-182330-
/O.CON.KILX.TO.W.0018.000000T0000Z-150818T2330Z/
MCLEAN-WOODFORD-
619 PM CDT TUE AUG 18 2015
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN MCLEAN AND EASTERN WOODFORD COUNTIES...
AT 619 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER SECOR...OR 8 MILES EAST OF EUREKA...MOVING NORTHEAST
AT 55 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS DANGEROUS STORM WILL BE NEAR...
EL PASO AROUND 625 PM CDT.
MINONK AND GRIDLEY AROUND 630 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
EVERGREEN LAKE...PANOLA...BENSON AND KAPPA.
THIS INCLUDES INTERSTATE 39 BETWEEN MILE MARKERS 8 AND 28.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4092 8893 4075 8893 4075 8884 4057 8909
4071 8928 4093 8906
TIME...MOT...LOC 2319Z 223DEG 49KT 4071 8912
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
AUTEN056
WWUS53 KILX 182330
SVSILX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
630 PM CDT TUE AUG 18 2015
ILC113-203-182340-
/O.EXP.KILX.TO.W.0018.000000T0000Z-150818T2330Z/
MCLEAN-WOODFORD-
630 PM CDT TUE AUG 18 2015
...THE TORNADO WARNING FOR NORTHWESTERN MCLEAN AND EASTERN WOODFORD
COUNTIES HAS EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR CENTRAL
ILLINOIS.
LAT...LON 4092 8893 4075 8893 4075 8884 4057 8909
4071 8928 4093 8906
TIME...MOT...LOC 2329Z 223DEG 49KT 4071 8912
$$
AUTENThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 3:14 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Knox | 46 min |
| Aug 18, 4:19 PM CDT | Special Weather Statement | ILX | Cass, Fulton, Morgan, Scott | 41 min |
| Aug 18, 4:33 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason | 42 min |
| Aug 18, 4:51 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Peoria | 39 min |
| Aug 18, 5:19 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Stark | 29 min |
Nearby
Tornado Warnings in Illinois, 2015Every tornado warning in 2015Tornadoes in 2015
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.