Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 7, NWS Lincoln, IL

February 27, 20114 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Feb 27, 2011, 8:25 PM CST for 4 counties in Illinois. It was in force for 35 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: Feb 27, 2011, 8:25 PM CST (02:25 UTC)
Expired: Feb 27, 2011, 9:00 PM CST
In force: 35 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 70.0 mph

Counties Cass County, IL, Fulton County, IL, Mason County, IL, Schuyler County, IL

The radar

The Lincoln radar (KILX), 104 km from the middle of the area, began a volume at 02:28 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
Feb 27, 5:33 PM CST	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 2.4 hours before the alert went out and 165 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: 485 m above ground
0-6 km bulk shear: 86 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 136 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.

083 
WUUS53 KILX 280225
SVRILX
ILC017-057-125-169-280300-
/O.NEW.KILX.SV.W.0007.110228T0225Z-110228T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
825 PM CST SUN FEB 27 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CASS COUNTY IN WEST CENTRAL ILLINOIS...
  SOUTHWESTERN FULTON COUNTY IN WEST CENTRAL ILLINOIS...
  SOUTHWESTERN MASON COUNTY IN CENTRAL ILLINOIS...
  SCHUYLER COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 900 PM CST.

* AT 824 PM CST...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
  THUNDERSTORM PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS
  STORM WAS LOCATED 7 MILES SOUTHWEST OF RUSHVILLE...AND MOVING
  NORTHEAST AT 60 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE
  DAMAGING WINDS.

* LOCATIONS IMPACTED INCLUDE...
  RUSHVILLE...BROWNING...VERMONT...ASTORIA...IPAVA...BATH...
  FREDERICK...RAY...SNICARTE...BLUFF CITY...MARBLETOWN AND DUNCAN
  MILLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4014 9078 4028 9049 4028 9047 4030 9046
      4041 9022 4020 9000 3998 9053 3998 9060
      4002 9062 4004 9068 4007 9068 4008 9071
      4010 9071 4010 9075
TIME...MOT...LOC 0226Z 239DEG 52KT 4009 9064
WIND...HAIL 70MPH 0.88IN

$$

GEELHART

2 follow-up statements

809 
WWUS53 KILX 280247
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
847 PM CST SUN FEB 27 2011

ILC017-280257-
/O.CAN.KILX.SV.W.0007.000000T0000Z-110228T0300Z/
CASS IL-
847 PM CST SUN FEB 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CASS COUNTY IS
CANCELLED...

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

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LINCOLN.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM.

LAT...LON 4025 9055 4028 9049 4028 9047 4030 9046
      4041 9022 4020 9000 4009 9031 4011 9031
      4013 9035 4013 9038 4012 9040
TIME...MOT...LOC 0247Z 239DEG 52KT 4024 9030

$$

ILC057-125-169-280300-
/O.CON.KILX.SV.W.0007.000000T0000Z-110228T0300Z/
FULTON IL-SCHUYLER IL-MASON IL-
847 PM CST SUN FEB 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
MASON...NORTHEASTERN SCHUYLER AND SOUTHWESTERN FULTON COUNTIES UNTIL
900 PM CST...

AT 842 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR ASTORIA...OR 12 MILES NORTHEAST
OF RUSHVILLE...MOVING NORTHEAST AT 60 MPH. NICKEL SIZE HAIL MAY ALSO
ACCOMPANY THESE DAMAGING WINDS.

LOCATIONS IMPACTED INCLUDE...
  IPAVA...BATH...MARBLETOWN AND DUNCAN MILLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS IF YOU ARE IN
THE PATH OF THIS STORM. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LINCOLN.

&&

LAT...LON 4025 9055 4028 9049 4028 9047 4030 9046
      4041 9022 4020 9000 4009 9031 4011 9031
      4013 9035 4013 9038 4012 9040
TIME...MOT...LOC 0247Z 239DEG 52KT 4024 9030
WIND...HAIL 60MPH 0.88IN

$$

GEELHART

803 
WWUS53 KILX 280259
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
859 PM CST SUN FEB 27 2011

ILC057-125-169-280309-
/O.EXP.KILX.SV.W.0007.000000T0000Z-110228T0300Z/
FULTON IL-SCHUYLER IL-MASON IL-
859 PM CST SUN FEB 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MASON...
NORTHEASTERN SCHUYLER AND SOUTHWESTERN FULTON COUNTIES WILL EXPIRE AT
900 PM CST...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. 
HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN LINCOLN.

LAT...LON 4025 9055 4028 9049 4028 9047 4030 9046
      4041 9022 4020 9000 4009 9031 4011 9031
      4013 9035 4013 9038 4012 9040
TIME...MOT...LOC 0259Z 239DEG 52KT 4033 9010

$$
GEELHART

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 27, 6:52 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Schuyler	38 min
Feb 27, 7:19 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Mason, Tazewell	41 min
Feb 27, 7:40 PM CST	Special Weather Statement	ILX	Mason, Menard, Tazewell	50 min
Feb 27, 7:56 PM CST	Special Weather Statement	ILX	Peoria, Tazewell	49 min
Feb 27, 8:14 PM CST	Severe Thunderstorm Warning	ILX	Logan, McLean, Tazewell	31 min
Feb 27, 8:30 PM CST	Special Weather Statement	ILX	Christian, Moultrie, Shelby	30 min
Feb 27, 8:33 PM CST	Severe Thunderstorm Warning	ILX	Fulton, Peoria, Tazewell	32 min
Feb 27, 8:42 PM CST	Special Weather Statement	ILX	Morgan, Scott	33 min
Feb 27, 8:44 PM CST	Severe Thunderstorm Warning	ILX	McLean	46 min
Feb 27, 8:45 PM CST	Freezing Rain Advisory	ILX	Knox, Stark	5 hr
Feb 27, 9:17 PM CST	Severe Thunderstorm Warning	ILX	Christian, Logan, Menard, Sangamon	28 min
Feb 27, 9:19 PM CST	Special Weather Statement	ILX	Coles, Douglas, Edgar	41 min
Feb 27, 9:35 PM CST	Severe Thunderstorm Warning	ILX	Clark, Coles, Douglas, Edgar	40 min
Feb 27, 9:47 PM CST	Special Weather Statement	ILX	DeWitt, Logan, McLean, Macon, Moultrie, Piatt	43 min
Feb 27, 10:11 PM CST	Special Weather Statement	ILX	Lawrence	34 min
Feb 27, 10:43 PM CST	Special Weather Statement	ILX	Crawford, Lawrence	47 min
Feb 27, 11:02 PM CST	River Flood Warning	ILX	Peoria, Tazewell, Woodford	16 days
Feb 27, 11:04 PM CST	Special Weather Statement	ILX	Cass, Logan, Menard, Morgan, Sangamon	56 min
Feb 28, 12:25 AM CST	Severe Thunderstorm Warning	ILX	Coles, Cumberland, Effingham, Jasper, Moultrie, Shelby	44 min
Feb 28, 12:29 AM CST	Severe Thunderstorm Warning	ILX	Clay, Cumberland, Effingham, Jasper, Richland	61 min
Feb 28, 12:59 AM CST	Severe Thunderstorm Warning	ILX	Clark, Edgar	32 min
Feb 28, 1:06 AM CST	Severe Thunderstorm Warning	ILX	Crawford, Lawrence	39 min
Feb 28, 1:18 AM CST	Tornado Warning	ILX	Richland	14 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2011 Every severe thunderstorm warning in 2011

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.