Alert archive / Illinois / Tornado Warnings in 2015

Tornado Warning 2, NWS Lincoln, IL

April 9, 2015Marshall County, Peoria County, Woodford County, Illinois

NWS Lincoln, IL issued this tornado warning at Apr 9, 2015, 1:37 PM CDT for Marshall County, Peoria County, Woodford County, Illinois. It was in force for 38 min. 1 report 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: Apr 9, 2015, 1:37 PM CDT (18:37 UTC)
Expired: Apr 9, 2015, 2:15 PM CDT
In force: 38 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

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

The radar

The Lincoln radar (KILX), 101 km from the middle of the area, began a volume at 18:37 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
Apr 9, 1:37 PM CDT	TORNADO	3 W Rome, IL	BRIEF ROPE TORNADO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.6 hours before the alert went out and 117 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: 114 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 1085 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

898 
WFUS53 KILX 091837
TORILX
ILC123-143-203-091915-
/O.NEW.KILX.TO.W.0002.150409T1837Z-150409T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
137 PM CDT THU APR 9 2015

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* TORNADO WARNING FOR...
  MARSHALL COUNTY IN CENTRAL ILLINOIS...
  NORTHEASTERN PEORIA COUNTY IN CENTRAL ILLINOIS...
  NORTHWESTERN WOODFORD COUNTY IN CENTRAL ILLINOIS...

* UNTIL 215 PM CDT

* AT 132 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR DUNLAP...AND MOVING NORTHEAST AT 30 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 DANGEROUS STORM WILL BE NEAR...
  CHILLICOTHE AROUND 145 PM CDT.
  LACON AND SPARLAND AROUND 200 PM CDT.
  WASHBURN AROUND 205 PM CDT.
  VARNA AROUND 215 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE HOPEWELL...MARSHALL COUNTY
AIRPORT...LAKE WILDWOOD AND LA ROSE.

THIS INCLUDES INTERSTATE 39 BETWEEN MILE MARKERS 31 AND 41.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4115 8932 4112 8932 4111 8933 4111 8905
      4110 8904 4095 8904 4083 8961 4094 8969
      4115 8933
TIME...MOT...LOC 1837Z 242DEG 24KT 4091 8958

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

$$

BARNES

2 follow-up statements

416 
WWUS53 KILX 091900
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
200 PM CDT THU APR 9 2015

ILC143-203-091910-
/O.CAN.KILX.TO.W.0002.000000T0000Z-150409T1915Z/
PEORIA IL-WOODFORD IL-
200 PM CDT THU APR 9 2015

...THE TORNADO WARNING FOR NORTHWESTERN WOODFORD AND NORTHEASTERN
PEORIA COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4115 8932 4112 8932 4111 8933 4111 8905
      4110 8904 4095 8904 4093 8941 4105 8950
      4115 8933
TIME...MOT...LOC 1900Z 243DEG 25KT 4098 8937

$$

ILC123-091915-
/O.CON.KILX.TO.W.0002.000000T0000Z-150409T1915Z/
MARSHALL IL-
200 PM CDT THU APR 9 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR MARSHALL COUNTY UNTIL 215
PM CDT...

AT 157 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR LACON...AND MOVING NORTHEAST AT 30 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 DANGEROUS STORM WILL BE NEAR...
  VARNA AND TOLUCA AROUND 215 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE LA ROSE AND LAKE WILDWOOD.

INTERSTATE 39 BETWEEN MILE MARKERS 31 AND 41.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4115 8932 4112 8932 4111 8933 4111 8905
      4110 8904 4095 8904 4093 8941 4105 8950
      4115 8933
TIME...MOT...LOC 1900Z 243DEG 25KT 4098 8937

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

$$

BARNES

209 
WWUS53 KILX 091912
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
212 PM CDT THU APR 9 2015

ILC123-091922-
/O.EXP.KILX.TO.W.0002.000000T0000Z-150409T1915Z/
MARSHALL IL-
212 PM CDT THU APR 9 2015

...THE TORNADO WARNING FOR MARSHALL COUNTY WILL EXPIRE AT 215 PM
CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 11 PM CDT.

LAT...LON 4115 8932 4112 8932 4111 8933 4111 8905
      4110 8904 4095 8904 4093 8941 4105 8950
      4115 8933
TIME...MOT...LOC 1912Z 243DEG 25KT 4101 8927

$$

BARNES

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 8:02 PM CDT	River Flood Warning	ILX	Clay, Richland	7 days
Apr 9, 4:06 AM CDT	Special Weather Statement	ILX	Logan, Macon, Menard, Sangamon	54 min
Apr 9, 4:38 AM CDT	Special Weather Statement	ILX	Champaign, Vermilion	52 min
Apr 9, 4:53 AM CDT	Severe Thunderstorm Warning	ILX	Vermilion	52 min
Apr 9, 5:54 AM CDT	Flash Flood Warning	ILX	Vermilion	6 hr
Apr 9, 6:13 AM CDT	Special Weather Statement	ILX	Clay, Effingham, Jasper	62 min
Apr 9, 6:19 AM CDT	Special Weather Statement	ILX	Clay, Effingham, Jasper	56 min
Apr 9, 7:57 AM CDT	Special Weather Statement	ILX	Clark	33 min
Apr 9, 1:03 PM CDT	Special Weather Statement	ILX	Marshall, Peoria, Stark	57 min
Apr 9, 1:29 PM CDT	Severe Thunderstorm Warning	ILX	Marshall, Peoria, Woodford	46 min
Apr 9, 5:15 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Peoria, Tazewell	45 min
Apr 9, 6:01 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	44 min
Apr 9, 6:42 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Sangamon	48 min
Apr 9, 6:56 PM CDT	Severe Thunderstorm Warning	ILX	Knox, Marshall, Peoria, Stark, Woodford	49 min

Nearby

Tornado Warnings in Illinois, 2015 Every tornado warning in 2015 Tornadoes 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.