Alert archive / Illinois / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Quad Cities, IA

May 19, 2013Clinton County, Jackson County, Iowa; Carroll County, Jo Daviess County, Stephenson County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at May 19, 2013, 1:48 PM CDT for Clinton County, Jackson County, Iowa; Carroll County, Jo Daviess County, Stephenson County, Illinois. It was in force for 42 min. 4 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 19, 2013, 1:48 PM CDT (18:48 UTC)
Expired: May 19, 2013, 2:30 PM CDT
In force: 42 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Clinton County, IA, Jackson County, IA, Carroll County, IL, Jo Daviess County, IL, Stephenson County, IL

The radar

The Quad Cities radar (KDVN), 96 km from the middle of the area, began a volume at 18:50 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 19, 1:59 PM CDT	TSTM WND DMG	3 Ne Woodbine, IL	2 INCH DIAMETER TREE LIMBS DOWN.
May 19, 2:07 PM CDT	TSTM WND DMG	3 Nne Stockton, IL	4 INCH DIAMETER TREE LIMB DOWN AT RESIDENCE...DELAYED REPORT.
May 19, 2:07 PM CDT	TSTM WND GST 64	3 Nne Stockton, IL
May 19, 2:28 PM CDT	HAIL 0.5	Winslow, IL	RELAYED FROM MEDIA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 6.8 hours before the alert went out and 92 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: 905 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 846 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 93 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.

722 
WUUS53 KDVN 191848
SVRDVN
IAC045-097-ILC015-085-177-191930-
/O.NEW.KDVN.SV.W.0021.130519T1848Z-130519T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
148 PM CDT SUN MAY 19 2013

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN CLINTON COUNTY IN EAST CENTRAL IOWA...
  SOUTHEASTERN JACKSON COUNTY IN EAST CENTRAL IOWA...
  NORTHWESTERN CARROLL COUNTY IN NORTHWEST ILLINOIS...
  EASTERN JO DAVIESS COUNTY IN NORTHWEST ILLINOIS...
  WESTERN STEPHENSON COUNTY IN NORTHWEST ILLINOIS...

* UNTIL 230 PM CDT

* AT 145 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MILES...AND
  MOVING NORTHEAST AT 45 MPH.

  HAZARD...70 MPH WIND GUSTS AND PENNY SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO
           MOBILE HOMES...ROOFS AND OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
  GREEN ISLAND...SABULA...SAVANNA...MASSBACH...WOODBINE...STOCKTON...
  PEARL CITY...NORA...WARREN...LENA...WINSLOW...CEDARVILLE...
  REECEVILLE...MISSISSIPPI PALISADES...WACKER...CENTER HILL...
  ELMOVILLE...LORAN...WILLOW AND STOCKTON AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

&&

LAT...LON 4251 8969 4241 8955 4193 9019 4208 9039
      4251 9004
TIME...MOT...LOC 1847Z 225DEG 40KT 4206 9026

HAIL...0.75IN
WIND...70MPH

$$

DLF

1 follow-up statement

618 
WWUS53 KDVN 191914
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
214 PM CDT SUN MAY 19 2013

IAC045-097-191923-
/O.CAN.KDVN.SV.W.0021.000000T0000Z-130519T1930Z/
JACKSON IA-CLINTON IA-
214 PM CDT SUN MAY 19 2013

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CLINTON AND
SOUTHEASTERN JACKSON COUNTIES IS CANCELLED...

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

LAT...LON 4212 8994 4225 9020 4251 9004 4251 8969
      4241 8955
TIME...MOT...LOC 1913Z 225DEG 40KT 4226 8998

$$

ILC015-085-177-191930-
/O.CON.KDVN.SV.W.0021.000000T0000Z-130519T1930Z/
JO DAVIESS IL-STEPHENSON IL-CARROLL IL-
214 PM CDT SUN MAY 19 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
CARROLL...WESTERN STEPHENSON AND EASTERN JO DAVIESS COUNTIES UNTIL
230 PM CDT...

AT 211 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES EAST OF
MASSBACH...AND MOVING NORTHEAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
STOCKTON...PEARL CITY...NORA...WARREN...LENA...WINSLOW...
CEDARVILLE...LORAN...WILLOW...STOCKTON AIRPORT...KENT...APPLE RIVER
CANYON STATE PARK...WADDAMS GROVE...ELEROY...LAKE LEAQUANA STATE
PARK...MC CONNELL...DAMASCUS...RED OAK...BUENA VISTA AND SCIOTO
MILLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4212 8994 4225 9020 4251 9004 4251 8969
      4241 8955
TIME...MOT...LOC 1913Z 225DEG 40KT 4226 8998

HAIL...0.75IN
WIND...60MPH

$$

DLF

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 19, 3:47 AM CDT	Special Weather Statement	DVN	Keokuk	58 min
May 19, 4:34 AM CDT	Special Weather Statement	DVN	Benton, Iowa	41 min
May 19, 5:16 AM CDT	Special Weather Statement	DVN	Buchanan, Linn	59 min
May 19, 5:38 AM CDT	Special Weather Statement	DVN	Louisa	37 min
May 19, 10:14 AM CDT	Special Weather Statement	DVN	Lee	61 min
May 19, 11:23 AM CDT	Special Weather Statement	DVN	Des Moines, Henry, Louisa	52 min
May 19, 12:06 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Louisa, Muscatine, Scott	39 min
May 19, 1:10 PM CDT	Special Weather Statement	DVN	Clinton, Jackson	65 min
May 19, 4:09 PM CDT	Severe Thunderstorm Warning	DVN	Lee	51 min
May 19, 4:52 PM CDT	Special Weather Statement	DVN	Des Moines, Henry, Lee, Louisa, Van Buren	68 min
May 19, 4:58 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines	47 min
May 19, 5:01 PM CDT	Severe Thunderstorm Warning	DVN	Lee	59 min
May 19, 5:16 PM CDT	Tornado Warning	DVN	Lee	29 min
May 19, 5:27 PM CDT	Severe Thunderstorm Warning	DVN	Muscatine, Scott	48 min
May 19, 5:45 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Lee	60 min
May 19, 6:09 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	51 min
May 19, 6:33 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	42 min
May 19, 6:46 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Jackson	29 min
May 19, 2:24 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess, Stephenson	36 min
May 19, 6:44 PM CDT	Special Weather Statement	DVN	Henderson, Mercer, Warren	31 min
May 19, 6:57 PM CDT	Severe Thunderstorm Warning	DVN	Henderson, Warren	48 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2013 Severe Thunderstorm Warnings in Iowa, 2013 Every severe thunderstorm warning in 2013

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.