Alert archive / Illinois / Tornado Warnings in 2008

Tornado Warning 77, NWS St. Louis, MO

July 27, 2008Adams County, Brown County, Illinois

NWS St. Louis, MO issued this tornado warning at Jul 27, 2008, 7:41 PM CDT for Adams County, Brown County, Illinois. It was in force for 49 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
Jul 27, 2008, 7:41 PM CDT (00:41 UTC)
Expired
Jul 27, 2008, 8:30 PM CDT
In force
49 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon

Counties Adams County, IL, Brown County, IL

The radar

The Lincoln radar (KILX), 127 km from the middle of the area, began a volume at 00:45 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
Jul 27, 8:11 PM CDTTSTM WND DMGMound Station, ILNUMEROUS TREES AND LIMBS DOWN IN MOUND STATION.

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
Jul 27, 5:27 PM CDTSevere Thunderstorm WatchSPC10 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.7 hours before the alert went out and 176 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 2008-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 566 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 2008-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.193958Sfc1 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
566 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
1193 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLSX 280041
TORLSX
ILC001-009-280130-
/O.NEW.KLSX.TO.W.0077.080728T0041Z-080728T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
741 PM CDT SUN JUL 27 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS
  BROWN COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 830 PM CDT

* AT 739 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 9 MILES NORTH OF MENDON...
  OR ABOUT 11 MILES NORTHEAST OF CANTON...MOVING EAST AT 46 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GOLDEN...
  CAMP POINT...
  CLAYTON...
  BUCKHORN...
  MOUNT STERLING...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
NICKLE SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 
70 MPH.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

LAT...LON 4020 9092 4011 9091 4011 9070 4008 9070
      4007 9067 4005 9068 4003 9061 3999 9060
      3998 9057 3984 9067 3984 9069 4013 9152
      4021 9146
TIME...MOT...LOC 0041Z 289DEG 40KT 4020 9131

$$

CARNEY
2 follow-up statements
000 
WWUS53 KLSX 280055
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
755 PM CDT SUN JUL 27 2008

ILC001-009-280130-
/O.CON.KLSX.TO.W.0077.000000T0000Z-080728T0130Z/
BROWN IL-ADAMS IL-
755 PM CDT SUN JUL 27 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR NORTHERN
ADAMS AND BROWN COUNTIES...

AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR WOODVILLE...OR 20
MILES NORTHEAST OF QUINCY...AND WAS MOVING EAST AT 53 MPH.

LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE...GOLDEN...CLAYTON...
MOUND STATION...BUCKHORN...MOUNT STERLING...COOPERTOWN...RIPLEY AND
VERSAILLES.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
PENNY SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 
MPH.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

LAT...LON 4020 9092 4011 9091 4011 9070 4008 9070
      4007 9067 4005 9068 4003 9061 3999 9060
      3998 9057 3984 9067 3984 9069 4013 9152
      4021 9146
TIME...MOT...LOC 0055Z 291DEG 46KT 4013 9110

$$

CARNEY
000 
WWUS53 KLSX 280131
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
831 PM CDT SUN JUL 27 2008

ILC001-009-280140-
/O.EXP.KLSX.TO.W.0077.000000T0000Z-080728T0130Z/
BROWN IL-ADAMS IL-
830 PM CDT SUN JUL 27 2008

...THE TORNADO WARNING FOR NORTHERN ADAMS AND BROWN COUNTIES EXPIRES
AT 830 PM CDT...

THE STORM WHICH PROMPTED THE WARNING NO LONGER APPEARS TO BE 
ROTATING AND IS NOT AN IMMEDIATE THREAT FOR TORNADOES. HOWEVER...A 
SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR ADAMS AND BROWN 
COUNTIES UNTIL 845 PM.

ADDITIONAL STRONG THUNDERSTORMS ARE POSSIBLE...AND A SEVERE 
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM TONIGHT.

LAT...LON 4020 9092 4011 9091 4011 9070 4008 9070
      4007 9067 4005 9068 4003 9061 3999 9060
      3998 9057 3984 9067 3984 9069 4013 9152
      4021 9146
TIME...MOT...LOC 0130Z 291DEG 46KT 3997 9056

$$

CARNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 7:02 PM CDTSevere Thunderstorm WarningLSXAdams, Brown58 min
Jul 27, 8:00 PM CDTSevere Thunderstorm WarningLSXAdams, Brown, Calhoun, Greene, Pike45 min
Jul 27, 8:33 PM CDTFlash Flood WarningLSXAdams, Brown6 hr
Jul 27, 8:44 PM CDTSevere Thunderstorm WarningLSXBrown, Calhoun, Greene, Jersey, Macoupin, Pike46 min
Jul 27, 8:51 PM CDTFlash Flood WarningLSXPike6 hr
Jul 27, 9:31 PM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Jersey, Macoupin, Madison, Pike44 min
Jul 27, 10:15 PM CDTSevere Thunderstorm WarningLSXBond, Calhoun, Clinton, Jersey, Macoupin, Madison and 3 more45 min
Jul 28, 3:29 PM CDTRiver Flood WarningLSXMadison7 days

Nearby

Tornado Warnings in Illinois, 2008Every tornado warning in 2008Tornadoes 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.