Alert archive / Illinois / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 38, NWS Lincoln, IL

April 1, 2012Peoria County, Stark County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 1, 2012, 2:20 AM CDT for Peoria County, Stark County, Illinois. It was in force for 55 min. 3 reports 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 1, 2012, 2:20 AM CDT (07:20 UTC)
Expired
Apr 1, 2012, 3:15 AM CDT
In force
55 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

Counties Peoria County, IL, Stark County, IL

The radar

The Lincoln radar (KILX), 95 km from the middle of the area, began a volume at 07:23 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
Apr 1, 2:32 AM CDTHAIL 0.753 N Laura, IL
Apr 1, 2:48 AM CDTHAIL 0.754 S Princeville, IL
Apr 1, 3:01 AM CDTHAIL 0.753 Ene Laura, ILALONG ROUTE 90 BETWEEN LAURA AND MONICA

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
Mar 31, 9:24 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 7.3 hours before the alert went out and 98 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 2012-04-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2012-04-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1520 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
306 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

097 
WUUS53 KILX 010720
SVRILX
ILC143-175-010815-
/O.NEW.KILX.SV.W.0038.120401T0720Z-120401T0815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
220 AM CDT SUN APR 1 2012

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN PEORIA COUNTY IN CENTRAL ILLINOIS...
  SOUTHERN STARK COUNTY IN NORTH CENTRAL ILLINOIS...

* UNTIL 315 AM CDT.

* AT 218 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
  THIS STORM WAS LOCATED NEAR ELMORE...OR 17 MILES SOUTH OF
  KEWANEE...AND MOVING SOUTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LAURA...PRINCEVILLE...DUNLAP...MONICA...DUNCAN AND ALTA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4097 8964 4097 8953 4079 8964 4091 8998
      4106 8999
TIME...MOT...LOC 0720Z 293DEG 18KT 4099 8995
WIND...HAIL <50MPH 1.50IN

$$

SMITH
2 follow-up statements
527 
WWUS53 KILX 010740
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
240 AM CDT SUN APR 1 2012

ILC143-175-010815-
/O.CON.KILX.SV.W.0038.000000T0000Z-120401T0815Z/
PEORIA IL-STARK IL-
240 AM CDT SUN APR 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
STARK AND NORTHERN PEORIA COUNTIES UNTIL 315 AM CDT...

AT 237 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THIS STORM WAS LOCATED NEAR ELMORE...OR 19 MILES SOUTH OF 
KEWANEE...MOVING SOUTHEAST AT 20 MPH. ANOTHER SEVERE THUNDERSTORM
WAS LOCATED 1 MILE SOUTH OF MONICA...ALSO MOVING SOUTHEAST AT 20 
MPH.

LOCATIONS IMPACTED INCLUDE...
  LAURA...PRINCEVILLE...DUNLAP...DUNCAN AND ALTA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE HAD A HISTORY OF PRODUCING LARGE HAIL. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY 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 4097 8964 4097 8953 4079 8964 4091 8998
      4106 8999
TIME...MOT...LOC 0739Z 293DEG 18KT 4096 8995
WIND...HAIL <50MPH 1.50IN

$$

SMITH
578 
WWUS53 KILX 010805
SVSILX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
305 AM CDT SUN APR 1 2012

ILC175-010813-
/O.CAN.KILX.SV.W.0038.000000T0000Z-120401T0815Z/
STARK IL-
305 AM CDT SUN APR 1 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN STARK COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA. HOWEVER...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR
THE AREA UNTIL 600 AM CDT. 

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

LAT...LON 4097 8964 4097 8953 4079 8964 4091 8998
      4098 8998
TIME...MOT...LOC 0803Z 293DEG 18KT 4093 8981

$$

ILC143-010815-
/O.CON.KILX.SV.W.0038.000000T0000Z-120401T0815Z/
PEORIA IL-
305 AM CDT SUN APR 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
PEORIA COUNTY UNTIL 315 AM CDT...

AT 300 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR PRINCEVILLE...OR 17 MILES NORTHWEST OF
PEORIA...MOVING SOUTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  PRINCEVILLE...DUNLAP AND ALTA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY 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 4097 8964 4097 8953 4079 8964 4091 8998
      4098 8998
TIME...MOT...LOC 0803Z 293DEG 18KT 4093 8981
WIND...HAIL <50MPH 1.00IN

$$

SMITH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 1, 1:06 AM CDTSevere Thunderstorm WarningILXKnox54 min
Apr 1, 1:59 AM CDTSevere Thunderstorm WarningILXKnox46 min
Apr 1, 2:42 AM CDTSpecial Weather StatementILXTazewell63 min
Apr 1, 2:48 AM CDTSevere Thunderstorm WarningILXPeoria, Tazewell57 min
Apr 1, 3:15 AM CDTSevere Thunderstorm WarningILXPeoria, Woodford30 min
Apr 1, 3:40 AM CDTSevere Thunderstorm WarningILXTazewell, Woodford39 min
Apr 1, 3:43 AM CDTSevere Thunderstorm WarningILXMcLean, Tazewell47 min
Apr 1, 4:22 AM CDTSevere Thunderstorm WarningILXMcLean, Woodford38 min
Apr 1, 8:23 AM CDTSpecial Weather StatementILXVermilion37 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2012Every severe thunderstorm warning in 2012

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.