Alert archive / Illinois / Tornado Warnings in 2008

Tornado Warning 1, NWS Lincoln, IL

January 7, 2008Mason County, Tazewell County, Illinois

NWS Lincoln, IL issued this tornado warning at Jan 7, 2008, 4:51 PM CST for Mason County, Tazewell County, Illinois. It was in force for 24 min. 4 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: Jan 7, 2008, 4:51 PM CST (22:51 UTC)
Expired: Jan 7, 2008, 5:15 PM CST
In force: 24 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon

Counties Mason County, IL, Tazewell County, IL

The radar

The Lincoln radar (KILX), 46 km from the middle of the area, began a volume at 22:53 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
Jan 7, 5:11 PM CST	TSTM WND GST 60	Morton, IL	REPORTED NEAR INTERSECTION OF I-74/I-155
Jan 7, 5:11 PM CST	HAIL 1	Morton, IL	REPORTED NEAR INTERSECTION OF I-74/I-155.
Jan 7, 5:16 PM CST	HAIL 0.75	1 S Morton, IL
Jan 7, 5:20 PM CST	HAIL 0.88	1 N Hopedale, IL

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
Jan 7, 1:52 PM CST	Tornado Watch	SPC	146 days
Jan 7, 2:35 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.9 hours before the alert went out and 94 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: 383 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 247 m²/s²
0-3 km storm-relative helicity: 331 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KILX 072250
TORILX
ILC125-179-072315-
/O.NEW.KILX.TO.W.0001.080107T2251Z-080107T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
451 PM CST MON JAN 7 2008

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN MASON COUNTY IN CENTRAL ILLINOIS...
  TAZEWELL COUNTY IN CENTRAL ILLINOIS...

* UNTIL 515 PM CST.

* AT 451 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MANITO...OR
  ABOUT 13 MILES SOUTHWEST OF PEKIN...MOVING EAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GREEN VALLEY...
  SOUTH PEKIN...
  DELAVAN...
  PEKIN...
  MARQUETTE HEIGHTS...
  TREMONT...
  HOPEDALE...
  MORTON...

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 98 AND 104.

THIS INCLUDES INTERSTATE 155 BETWEEN MILE MARKERS 14 AND 31.

THIS INCLUDES INTERSTATE 474 BETWEEN MILE MARKERS 12 AND 14.

WHEN A TORNADO WARNING IS ISSUED...IT MEANS THAT STRONG ROTATION HAS
BEEN DETECTED IN THE STORM...AND ATMOSPHERIC CONDITIONS SUPPORT THAT
ROTATION REACHING THE GROUND. 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.

REPORT ANY SEVERE WEATHER OR DAMAGE TO YOUR LOCAL EMERGENCY
MANAGER...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE
NATIONAL WEATHER SERVICE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CST MONDAY EVENING FOR
WEST CENTRAL ILLINOIS. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL
900 PM CST MONDAY EVENING FOR NORTHWESTERN ILLINOIS.

LAT...LON 4039 8930 4031 8983 4049 8989 4057 8970
      4056 8969 4058 8966 4060 8965 4069 8946
TIME...MOT...LOC 2251Z 254DEG 49KT 4043 8973

$$

BARKER

2 follow-up statements

000 
WWUS53 KILX 072304
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
504 PM CST MON JAN 7 2008

ILC125-179-072315-
/O.CON.KILX.TO.W.0001.000000T0000Z-080107T2315Z/
MASON-TAZEWELL-
504 PM CST MON JAN 7 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CST FOR TAZEWELL
AND NORTHERN MASON COUNTIES...

AT 502 PM CST...A TORNADO WAS REPORTED.  THIS TORNADO THREAT WAS
LOCATED 4 MILES SOUTHEAST OF SOUTH PEKIN...OR ABOUT 8 MILES SOUTH OF
PEKIN...MOVING EAST AT 45 MPH.

PEOPLE NEAR THESE LOCATIONS ARE STILL THREATENED...
  TREMONT...
  HOPEDALE...
  GROVELAND...
  MORTON...

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 4039 8930 4031 8983 4049 8989 4057 8970
      4056 8969 4058 8966 4060 8965 4069 8946
TIME...MOT...LOC 2304Z 248DEG 41KT 4047 8958

$$
BARKER

000 
WWUS53 KILX 072315
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
515 PM CST MON JAN 7 2008

ILC125-179-072325-
/O.EXP.KILX.TO.W.0001.000000T0000Z-080107T2315Z/
MASON-TAZEWELL-
515 PM CST MON JAN 7 2008

...THE TORNADO WARNING FOR WESTERN TAZEWELL AND NORTHERN MASON 
COUNTIES EXPIRES AT 515 PM CST...

AT 511 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED THAT
THE THUNDERSTORM THAT HAD PROMPTED THE WARNING HAD MOVED OUT OF THE
AREA...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4039 8930 4031 8983 4049 8989 4057 8970
      4056 8969 4058 8966 4060 8965 4069 8946
TIME...MOT...LOC 2304Z 248DEG 41KT 4047 8958

$$

BARKER

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 7, 3:39 PM CST	Severe Thunderstorm Warning	ILX	Cass, Fulton, Mason, Schuyler	52 min
Jan 7, 4:18 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Mason, Schuyler	42 min
Jan 7, 4:44 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Mason, Peoria, Tazewell	46 min
Jan 7, 5:14 PM CST	Tornado Warning	ILX	McLean, Tazewell, Woodford	31 min
Jan 7, 5:35 PM CST	Severe Thunderstorm Warning	ILX	Morgan, Scott	40 min
Jan 7, 5:42 PM CST	Tornado Warning	ILX	McLean	33 min

Nearby

Tornado Warnings in Illinois, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.