Alert archive / Illinois / Tornado Warnings in 2015

Tornado Warning 47, NWS St. Louis, MO

December 23, 2015Pike County, Illinois

NWS St. Louis, MO issued this tornado warning at Dec 23, 2015, 4:11 PM CST for Pike County, Illinois. It was in force for 13 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: Dec 23, 2015, 4:11 PM CST (22:11 UTC)
Expired: Dec 23, 2015, 4:24 PM CST
In force: 13 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Pike County, IL

The radar

The St Louis radar (KLSX), 118 km from the middle of the area, began a volume at 22:10 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

Time	Report	Where	Remark
Dec 23, 4:12 PM CST	HAIL 0.5	Griggsville, IL	PEA TO MARBLE SIZE HAIL REPORTED NEAR GRIGGSVILLE

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
Dec 23, 1:55 PM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.2 hours before the alert went out and 179 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: 12 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 465 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 260 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

199 
WFUS53 KLSX 232211
TORLSX
ILC149-232245-
/O.NEW.KLSX.TO.W.0047.151223T2211Z-151223T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
411 PM CST WED DEC 23 2015

THE NATIONAL WEATHER SERVICE IN ST LOUIS  HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 445 PM CST
    
* AT 410 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER GRIGGSVILLE...MOVING NORTHEAST AT 50 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...
  MEREDOSIA AROUND 425 PM CST.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE VALLEY
CITY.

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 3983 9057 3979 9060 3976 9061 3973 9063
      3972 9064 3969 9065 3967 9074 3969 9077
      3984 9057
TIME...MOT...LOC 2210Z 240DEG 41KT 3969 9074 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CVKING

2 follow-up statements

673 
WWUS53 KLSX 232213
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
413 PM CST WED DEC 23 2015

ILC149-232245-
/O.CON.KLSX.TO.W.0047.000000T0000Z-151223T2245Z/
PIKE IL-
413 PM CST WED DEC 23 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CST FOR EAST
CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...
        
AT 413 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER GRIGGSVILLE...MOVING NORTHEAST AT 45 MPH.

HAZARD...TORNADO. 

SOURCE...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD NEAR GRIGGSVILLE. 

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...
  MEREDOSIA AROUND 425 PM CST.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE VALLEY
CITY.

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 3983 9057 3979 9060 3976 9061 3973 9063
      3972 9064 3969 9065 3967 9074 3969 9077
      3984 9057
TIME...MOT...LOC 2213Z 240DEG 41KT 3971 9070 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CVKING

238 
WWUS53 KLSX 232224 RRA
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
424 PM CST WED DEC 23 2015

ILC149-232234-
/O.CAN.KLSX.TO.W.0047.000000T0000Z-151223T2245Z/
PIKE IL-
424 PM CST WED DEC 23 2015

...THE TORNADO WARNING FOR EAST CENTRAL PIKE COUNTY IN WEST CENTRAL
ILLINOIS IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST FOR WEST CENTRAL
ILLINOIS.

LAT...LON 3983 9057 3979 9060 3976 9061 3973 9063
      3972 9064 3969 9065 3967 9074 3969 9077
      3984 9057
TIME...MOT...LOC 2222Z 240DEG 41KT 3978 9055 

$$

CVKING

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 23, 5:55 AM CST	Special Weather Statement	LSX	Monroe	50 min
Dec 23, 8:50 AM CST	Severe Thunderstorm Warning	LSX	Bond, Fayette, Macoupin, Madison, Montgomery	55 min
Dec 23, 10:37 AM CST	Severe Thunderstorm Warning	LSX	Monroe, Randolph, Saint Clair	38 min
Dec 23, 11:06 AM CST	Severe Thunderstorm Warning	LSX	Clinton, Washington	39 min
Dec 23, 11:38 AM CST	Severe Thunderstorm Warning	LSX	Clinton, Fayette, Marion	34 min
Dec 23, 1:29 PM CST	Wind Advisory	LSX	Adams, Brown, Pike	9 hr
Dec 23, 3:09 PM CST	Severe Thunderstorm Warning	LSX	Adams	51 min
Dec 23, 3:13 PM CST	Severe Thunderstorm Warning	LSX	Pike	16 min
Dec 23, 3:40 PM CST	Severe Thunderstorm Warning	LSX	Calhoun, Pike	50 min
Dec 23, 3:45 PM CST	Severe Thunderstorm Warning	LSX	Pike	45 min
Dec 23, 3:51 PM CST	Tornado Warning	LSX	Pike	24 min
Dec 23, 3:52 PM CST	Severe Thunderstorm Warning	LSX	Adams, Brown	38 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.