Alert archive / Illinois / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 73, NWS Lincoln, IL

May 22, 2011Morgan County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 22, 2011, 1:44 PM CDT for Morgan County, Illinois. It was in force for 16 min. 2 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: May 22, 2011, 1:44 PM CDT (18:44 UTC)
Expired: May 22, 2011, 2:00 PM CDT
In force: 16 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Morgan County, IL

The radar

The Lincoln radar (KILX), 87 km from the middle of the area, began a volume at 18:44 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
May 22, 2:05 PM CDT	HAIL 1	Jacksonville, IL
May 22, 2:10 PM CDT	HAIL 1	Jacksonville, IL

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
May 22, 12:51 PM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 6.7 hours before the alert went out and 146 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: 1465 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: -98 m²/s²
0-3 km storm-relative helicity: 133 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.

991 
WUUS53 KILX 221844
SVRILX
ILC137-221900-
/O.NEW.KILX.SV.W.0073.110522T1844Z-110522T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
144 PM CDT SUN MAY 22 2011

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MORGAN COUNTY IN WEST CENTRAL ILLINOIS...

* UNTIL 200 PM CDT.

* AT 140 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 
  BETWEEN CONCORD AND JACKSONVILLE...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LITERBERRY...
  SINCLAIR...
  JACKSONVILLE MUNICIPAL AIRPORT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

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

&&

LAT...LON 3987 9029 3987 9016 3977 9007 3967 9029
      3978 9039
TIME...MOT...LOC 1844Z 240DEG 34KT 3981 9023
WIND...HAIL 60MPH 1.00IN

$$
GEELHART

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 5:26 AM CDT	Special Weather Statement	ILX	Piatt	64 min
May 22, 8:08 AM CDT	Special Weather Statement	ILX	Clark, Coles, Cumberland	82 min
May 22, 1:08 PM CDT	Special Weather Statement	ILX	Tazewell	52 min
May 22, 1:11 PM CDT	Severe Thunderstorm Warning	ILX	Mason, Tazewell	34 min
May 22, 1:35 PM CDT	Severe Thunderstorm Warning	ILX	Cass, Mason, Menard, Morgan, Sangamon	55 min
May 22, 1:39 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell, Woodford	36 min
May 22, 1:52 PM CDT	Severe Thunderstorm Warning	ILX	Morgan, Scott	38 min
May 22, 2:08 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Tazewell, Woodford	37 min
May 22, 2:29 PM CDT	Severe Thunderstorm Warning	ILX	Logan, Menard, Sangamon	46 min
May 22, 2:38 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, McLean, Tazewell	52 min
May 22, 2:43 PM CDT	Severe Thunderstorm Warning	ILX	Morgan	32 min
May 22, 2:59 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Logan, Macon, Sangamon	46 min
May 22, 3:06 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	39 min
May 22, 3:24 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, McLean	66 min
May 22, 3:29 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt, Piatt	46 min
May 22, 3:43 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	47 min
May 22, 4:14 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Piatt	28 min
May 22, 5:24 PM CDT	Severe Thunderstorm Warning	ILX	Knox	27 min
May 22, 6:00 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Mason, Peoria, Tazewell	30 min
May 22, 6:07 PM CDT	Severe Thunderstorm Warning	ILX	Knox	38 min
May 22, 6:08 PM CDT	Special Weather Statement	ILX	Schuyler	37 min
May 22, 6:30 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Tazewell, Woodford	45 min
May 22, 6:43 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.