Alert archive / Illinois / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 101, NWS St. Louis, MO

April 10, 2008Adams County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 10, 2008, 5:32 PM CDT for Adams County, Illinois. It was in force for 58 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 10, 2008, 5:32 PM CDT (22:32 UTC)
Expired: Apr 10, 2008, 6:30 PM CDT
In force: 58 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

County Adams County, IL

The radar

The St Louis radar (KLSX), 152 km from the middle of the area, began a volume at 22:34 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 10, 6:25 PM CDT	TSTM WND GST 65	1 N Loraine, IL	65 TO 75 MPH WINDS ESTIMATED.

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
Jan 7, 1:52 PM CST	Tornado Watch	SPC	146 days
Apr 10, 4:55 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.5 hours before the alert went out and 191 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 475 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 305 m²/s²
0-3 km storm-relative helicity: 419 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 
WUUS53 KLSX 102232
SVRLSX
ILC001-102330-
/O.NEW.KLSX.SV.W.0101.080410T2232Z-080410T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
532 PM CDT THU APR 10 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ADAMS COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 630 PM CDT

* AT 530 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
  STORM WAS LOCATED 21 MILES SOUTHWEST OF QUINCY...OR 7 MILES EAST OF
  MONROE CITY...AND MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  QUINCY...
  MENDON...
  CAMP POINT...
  GOLDEN...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

LAT...LON 4019 9094 4017 9092 3996 9093 3977 9137
      3980 9138 3986 9145 3990 9143 3993 9143
      3999 9148 4020 9125
TIME...MOT...LOC 2232Z 215DEG 53KT 3970 9159

$$

CVKING

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 8:26 PM CDT	River Flood Warning	LSX	Brown	38 hr
Apr 9, 8:31 PM CDT	River Flood Warning	LSX	Fayette	6 days
Apr 9, 10:13 PM CDT	River Flood Warning	LSX	Madison	42 days
Apr 9, 10:13 PM CDT	River Flood Warning	LSX	Saint Clair	7 days
Apr 9, 10:13 PM CDT	River Flood Warning	LSX	Randolph	45 days
Apr 10, 12:25 AM CDT	River Flood Warning	LSX	Adams	42 days
Apr 10, 5:10 AM CDT	Flash Flood Warning	LSX	Monroe, Randolph	6 hr
Apr 10, 8:24 AM CDT	Flash Flood Warning	LSX	Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 6 more	3 hr
Apr 10, 11:34 AM CDT	River Flood Warning	LSX	Brown	11 hr
Apr 10, 5:15 PM CDT	Severe Thunderstorm Warning	LSX	Adams	60 min
Apr 10, 5:40 PM CDT	Tornado Warning	LSX	Adams	32 min
Apr 10, 6:27 PM CDT	Severe Thunderstorm Warning	LSX	Adams, Brown	51 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2008 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.