Alert archive / Illinois / Tornado Warnings in 2017

Tornado Warning 1, NWS Lincoln, IL

February 28, 2017Marshall County, Peoria County, Woodford County, Illinois

NWS Lincoln, IL issued this tornado warning at Feb 28, 2017, 5:05 PM CST for Marshall County, Peoria County, Woodford County, Illinois. It was in force for 25 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: Feb 28, 2017, 5:05 PM CST (23:05 UTC)
Expired: Feb 28, 2017, 5:30 PM CST
In force: 25 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.25 in

Counties Marshall County, IL, Peoria County, IL, Woodford County, IL

The radar

The Lincoln radar (KILX), 84 km from the middle of the area, began a volume at 23:08 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.

What was reported inside it

Time	Report	Where	Remark
Feb 28, 5:15 PM CST	HAIL 1	Chillicothe, IL
Feb 28, 5:26 PM CST	TORNADO 3	4 W Washburn, IL	PATH LENGTH 18.0 MILES, PEAK WIDTH 600 YARDS. GREATEST DAMAGE IN WASHBURN, WHERE IT DAMAGED 8 HOUSES AND DID SIGNIFICANT DAMAGE TO ROOFS, GARAGES, AUTOMOBILES AND TREES. IT CROSSED INTO MARSHALL COUNTY AT WASHBURN AND ENTERED LA SALLE COUNTY AFTER CROSSING I-3

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
Feb 28, 2:57 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.1 hours before the alert went out and 112 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: 30 J/kg
Mixed-layer CIN: -241 J/kg
Mixed-layer LCL: 771 m above ground
0-6 km bulk shear: 80 kt
0-1 km storm-relative helicity: 223 m²/s²
0-3 km storm-relative helicity: 294 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

959 
WFUS53 KILX 282305
TORILX
ILC123-143-203-282330-
/O.NEW.KILX.TO.W.0001.170228T2305Z-170228T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
505 PM CST TUE FEB 28 2017

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Northwestern Woodford County in central Illinois...
  Northeastern Peoria County in central Illinois...
  Southwestern Marshall County in central Illinois...

* Until 530 PM CST
    
* At 505 PM CST, a severe thunderstorm capable of producing a tornado
  was located over Dunlap, or 9 miles northwest of Peoria, moving
  east at 35 mph.

  HAZARD...Tornado and half dollar size hail. 

  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...
  Rome around 520 PM CST. 
  Chillicothe around 525 PM CST. 
  Lacon around 530 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Cazenovia, Hopewell and Marshall County Airport.

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.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Lincoln.

&&

LAT...LON 4083 8973 4090 8974 4103 8936 4084 8932
TIME...MOT...LOC 2305Z 254DEG 32KT 4087 8968 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

Shimon

1 follow-up statement

938 
WWUS53 KILX 282315
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
515 PM CST TUE FEB 28 2017

ILC123-143-203-282330-
/O.CON.KILX.TO.W.0001.000000T0000Z-170228T2330Z/
Woodford-Peoria-Marshall-
515 PM CST TUE FEB 28 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CST FOR
NORTHWESTERN WOODFORD...NORTHEASTERN PEORIA AND SOUTH CENTRAL
MARSHALL COUNTIES...
    
At 514 PM CST, a severe thunderstorm capable of producing a tornado
was located over Rome, or 10 miles southwest of Lacon, moving east at
50 mph.

HAZARD...Tornado and quarter size hail. 

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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Woodford...northeastern Peoria and south central
Marshall Counties, including the following locations: Cazenovia and
Hopewell.

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.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4084 8957 4093 8961 4103 8936 4085 8932
TIME...MOT...LOC 2314Z 255DEG 42KT 4090 8951 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Shimon

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 3:35 PM CST	Severe Thunderstorm Warning	ILX	Stark	25 min
Feb 28, 3:50 PM CST	Severe Thunderstorm Warning	ILX	Knox	26 min
Feb 28, 4:11 PM CST	Severe Thunderstorm Warning	ILX	Knox	36 min
Feb 28, 4:33 PM CST	Severe Thunderstorm Warning	ILX	Morgan, Scott	29 min
Feb 28, 4:44 PM CST	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Stark	51 min
Feb 28, 5:28 PM CST	Tornado Warning Tornado observed	ILX	Marshall, Woodford	32 min
Feb 28, 5:32 PM CST	Severe Thunderstorm Warning	ILX	Marshall	28 min
Feb 28, 5:36 PM CST	Tornado Warning	ILX	Christian	24 min

Nearby

Tornado Warnings in Illinois, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.