Alert archive / Illinois / Tornado Warnings in 2017

Tornado Warning 9, NWS Lincoln, IL

March 6, 2017Fulton County, Knox County, Illinois

NWS Lincoln, IL issued this tornado warning at Mar 6, 2017, 11:08 PM CST for Fulton County, Knox County, Illinois. It was in force for 37 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
Mar 6, 2017, 11:08 PM CST (05:08 UTC)
Expired
Mar 6, 2017, 11:45 PM CST
In force
37 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Fulton County, IL, Knox County, IL

The radar

The Quad Cities radar (KDVN), 96 km from the middle of the area, began a volume at 05:10 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

TimeReportWhereRemark
Mar 6, 11:11 PM CSTTSTM WND DMGAbingdon, ILSHEET METAL BLOWN OFF BUILDING. SWOP REPORT
Mar 6, 11:26 PM CSTTSTM WND DMG2 W Maquon, ILPWER POLE BLOWN OVER NEAR INTERSECTION OF 1200E AND 650N
Mar 6, 11:28 PM CSTHAIL 17 N Fairview, IL
Mar 6, 11:37 PM CSTTSTM WND DMGFarmington, ILLARGE OBJECT FELL ON A HOUSE.

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.

IssuedProductOfficeLasted
Mar 6, 8:52 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 5.1 hours before the alert went out and 95 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-pSkew-T log-p diagram, Davenport, at 00:00Z on 2017-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2017-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 407 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
39 J/kg
Mixed-layer CIN
-343 J/kg
Mixed-layer LCL
1016 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
407 m²/s²
0-3 km storm-relative helicity
489 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

946 
WFUS53 KILX 070508
TORILX
ILC057-095-070545-
/O.NEW.KILX.TO.W.0009.170307T0508Z-170307T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Lincoln IL
1108 PM CST MON MAR 6 2017

The National Weather Service in Lincoln has issued a

* Tornado Warning for...
  Northwestern Fulton County in west central Illinois...
  Knox County in west central Illinois...

* Until 1145 PM CST

* At 1107 PM CST, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located over
  Little Swan Lake, or 15 miles northeast of Macomb, moving east at
  65 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. 

* These dangerous storms will be near...
  Abingdon around 1120 PM CST. 
  London Mills around 1125 PM CST. 
  Maquon and Gilson around 1130 PM CST. 
  Yates City around 1135 PM CST. 
  Williamsfield around 1140 PM CST. 

Other locations impacted by this tornadic thunderstorm include Snake
Den Hollow, Galesburg Airport, Dahinda, Delong, East Galesburg, St.
Augustine and Middle Grove.

This includes Interstate 74 between mile markers 46 and 67.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4067 8999 4063 9045 4096 9044 4108 8999
TIME...MOT...LOC 0507Z 249DEG 56KT 4068 9056 

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

$$

Shimon
3 follow-up statements
375 
WWUS53 KILX 070516
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
1116 PM CST MON MAR 6 2017

ILC057-095-070545-
/O.CON.KILX.TO.W.0009.000000T0000Z-170307T0545Z/
Fulton-Knox-
1116 PM CST MON MAR 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CST FOR
NORTHWESTERN FULTON AND KNOX COUNTIES...

At 1116 PM CST, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located near
Avon, or 15 miles south of Galesburg, moving east at 60 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. 

These dangerous storms will be near...
  London Mills around 1125 PM CST. 
  Maquon and Gilson around 1130 PM CST. 
  Yates City around 1135 PM CST. 
  Williamsfield around 1140 PM CST. 

Other locations impacted by this tornadic thunderstorm include Snake
Den Hollow, Galesburg Airport, Dahinda, Delong, East Galesburg, St.
Augustine and Middle Grove.

This includes Interstate 74 between mile markers 46 and 67.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4070 8999 4064 9045 4096 9044 4108 8999
TIME...MOT...LOC 0516Z 248DEG 53KT 4073 9041 

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

$$

Shimon
966 
WWUS53 KILX 070529
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
1129 PM CST MON MAR 6 2017

ILC057-095-070545-
/O.CON.KILX.TO.W.0009.000000T0000Z-170307T0545Z/
Fulton-Knox-
1129 PM CST MON MAR 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CST FOR NORTH
CENTRAL FULTON AND SOUTHEASTERN KNOX COUNTIES...

At 1126 PM CST, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located over 
Maquon, or 14 miles southeast of Galesburg, moving east at 65 mph. A 
second circulation 10 miles east of East Galesburg was moving 
east at 65 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. 

These dangerous storms will be near...     
         Victoria around 1130 pm CST.
         Yates City around 1135 PM CST.   
         Williamsfield around 1140 PM CST. 

Other locations impacted by this tornadic thunderstorm include Snake
Den Hollow, Dahinda and Middle Grove.

This includes Interstate 74 between mile markers 51 and 67.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4066 9028 4100 9030 4108 8999 4070 8999
TIME...MOT...LOC 0526Z 250DEG 55KT 4078 9020 

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

$$

Shimon
581 
WWUS53 KILX 070541
SVSILX

Severe Weather Statement
National Weather Service Lincoln IL
1141 PM CST MON MAR 6 2017

ILC057-095-070550-
/O.EXP.KILX.TO.W.0009.000000T0000Z-170307T0545Z/
Fulton-Knox-
1141 PM CST MON MAR 6 2017

...THE TORNADO WARNING FOR NORTH CENTRAL FULTON AND SOUTHEASTERN KNOX
COUNTIES WILL EXPIRE AT 1145 PM CST...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds are still possible with
this thunderstorm.

A tornado watch remains in effect until 400 AM CST for west central
Illinois.

Remember, a Severe Thunderstorm Warning still remains in effect for
Knox and Fulton counties until Midnight CST.

LAT...LON 4066 9028 4100 9030 4108 8999 4070 8999
TIME...MOT...LOC 0540Z 251DEG 46KT 4082 9001 

$$

Shimon

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 10:32 PM CSTSevere Thunderstorm WarningILXCass, Fulton, Knox, Mason, Peoria, Schuyler and 1 more28 min
Mar 6, 10:58 PM CSTSevere Thunderstorm WarningILXFulton, Knox, Peoria, Schuyler, Stark62 min
Mar 6, 10:59 PM CSTTornado WarningILXKnox19 min
Mar 6, 11:03 PM CSTTornado WarningILXKnox42 min
Mar 6, 11:21 PM CSTSevere Thunderstorm WarningILXCass, Mason, Morgan, Scott54 min
Mar 6, 11:49 PM CSTSevere Thunderstorm WarningILXCass, Fulton, Logan, Mason, Menard, Peoria and 2 more56 min
Mar 6, 11:54 PM CSTSevere Thunderstorm WarningILXMarshall, Peoria, Stark, Woodford38 min
Mar 7, 12:03 AM CSTTornado WarningILXMcLean, Tazewell27 min
Mar 7, 12:05 AM CSTSevere Thunderstorm WarningILXLogan, Menard, Morgan, Sangamon25 min
Mar 7, 12:21 AM CSTSevere Thunderstorm WarningILXDeWitt, Logan, McLean, Marshall, Woodford54 min
Mar 7, 12:30 AM CSTSevere Thunderstorm WarningILXChristian, DeWitt, Logan, Macon, Morgan, Sangamon60 min
Mar 7, 1:16 AM CSTSevere Thunderstorm WarningILXChristian, Macon, Moultrie, Piatt, Shelby44 min
Mar 7, 1:46 AM CSTSevere Thunderstorm WarningILXChampaign, Vermilion29 min
Mar 7, 1:57 AM CSTSevere Thunderstorm WarningILXColes, Cumberland, Douglas, Shelby48 min
Mar 7, 2:17 AM CSTSevere Thunderstorm WarningILXChampaign, Vermilion28 min
Mar 7, 2:25 AM CSTSevere Thunderstorm WarningILXClark, Coles, Edgar35 min
Mar 7, 2:37 AM CSTSpecial Weather StatementILXCrawford, Jasper23 min
Mar 7, 3:14 AM CSTSpecial Weather StatementILXLawrence46 min

Nearby

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