Alert archive / Illinois / Tornado Warnings in 2008

Tornado Warning 35, NWS St. Louis, MO

May 30, 2008Pike County, Illinois

NWS St. Louis, MO issued this tornado warning at May 30, 2008, 5:09 PM CDT for Pike County, Illinois. It was in force for 21 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 30, 2008, 5:09 PM CDT (22:09 UTC)
Expired: May 30, 2008, 5:30 PM CDT
In force: 21 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

County Pike County, IL

The radar

The Lincoln radar (KILX), 118 km from the middle of the area, began a volume at 22:11 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.

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
May 30, 1:56 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.2 hours before the alert went out and 178 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: 57 J/kg
Mixed-layer CIN: -325 J/kg
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 106 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.

000 
WFUS53 KLSX 302209
TORLSX
ILC149-302230-
/O.NEW.KLSX.TO.W.0035.080530T2209Z-080530T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
509 PM CDT FRI MAY 30 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 530 PM CDT

* AT 507 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION NEAR GRIGGSVILLE...OR
  ABOUT 10 MILES NORTHEAST OF PITTSFIELD...MOVING EAST AT 44 MPH.

* LOCATIONS IMPACTED INCLUDE...
  VALLEY CITY
  MEREDOSIA
  GRIGGSVILLE

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

LAT...LON 3984 9057 3983 9058 3981 9058 3979 9061
      3971 9064 3968 9064 3964 9061 3961 9075
      3979 9081 3985 9057
TIME...MOT...LOC 2209Z 254DEG 38KT 3973 9066

$$

GLASS

1 follow-up statement

000 
WWUS53 KLSX 302224
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
524 PM CDT FRI MAY 30 2008

ILC149-302234-
/O.EXP.KLSX.TO.W.0035.000000T0000Z-080530T2230Z/
PIKE IL-
524 PM CDT FRI MAY 30 2008

...THE TORNADO WARNING FOR NORTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS EXPIRES AT 530 PM CDT...

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

ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE...AND A TORNADO WATCH 
REMAINS IN EFFECT UNTIL 1000 PM.

LAT...LON 3984 9057 3983 9058 3981 9058 3979 9061
      3971 9064 3968 9064 3964 9061 3961 9075
      3979 9081 3985 9057
TIME...MOT...LOC 2224Z 254DEG 38KT 3977 9046

$$

GLASS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 3:55 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	50 min
May 30, 4:07 PM CDT	Tornado Warning	LSX	Adams, Brown, Pike	38 min
May 30, 4:43 PM CDT	Tornado Warning	LSX	Pike	12 min
May 30, 4:48 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	42 min
May 30, 5:07 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Pike	38 min
May 30, 5:19 PM CDT	Tornado Warning	LSX	Pike	41 min
May 30, 5:46 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown, Pike	44 min
May 30, 5:56 PM CDT	Tornado Warning	LSX	Pike	49 min
May 30, 6:31 PM CDT	Severe Thunderstorm Warning	LSX	Brown, Greene, Pike	44 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.