Alert archive / Illinois / Tornado Warnings in 2015

Tornado Warning 13, NWS Quad Cities, IA

June 22, 2015Whiteside County, Illinois

NWS Quad Cities, IA issued this tornado warning at Jun 22, 2015, 6:56 PM CDT for Whiteside County, Illinois. It was in force for 34 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: Jun 22, 2015, 6:56 PM CDT (23:56 UTC)
Expired: Jun 22, 2015, 7:30 PM CDT
In force: 34 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

County Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 68 km from the middle of the area, began a volume at 23:57 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
Jun 22, 6:57 PM CDT	TSTM WND DMG	Round Grove, IL	LOTS OF TREE DAMAGE REPORTED FROM MORRISON TO STERLING IN NORTHERN WHITESIDE COUNTY...TIME ESTIMATED FROM RADAR.
Jun 22, 7:12 PM CDT	HAIL 0.75	E Sterling, IL	REPORTED NEAR APPLEBEES ON RT 2.
Jun 22, 7:16 PM CDT	TSTM WND GST 70	Rock Falls, IL	NEAR RT 40 AND RT 30 INTERSECTION.

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
Jun 22, 3:56 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.9 hours before the alert went out and 61 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: 1240 J/kg
Mixed-layer CIN: -232 J/kg
Mixed-layer LCL: 853 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

475 
WFUS53 KDVN 222356
TORDVN
ILC195-230030-
/O.NEW.KDVN.TO.W.0013.150622T2356Z-150623T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
656 PM CDT MON JUN 22 2015

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN WHITESIDE COUNTY IN NORTHWESTERN ILLINOIS...

* UNTIL 730 PM CDT

* AT 656 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR MORRISON...MOVING SOUTHEAST AT 30 MPH.

  HAZARD...TORNADO AND PING PONG BALL SIZE HAIL. 

  SOURCE...TRAINED WEATHER SPOTTERS REPORTED FUNNEL CLOUD. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  EMERSON AROUND 705 PM CDT.
  ROCK FALLS AROUND 710 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
AGNEW...UNIONVILLE...DOUGLAS PARK...WHITE PIGEON...GALT...ROUND
GROVE...GRIMES ADDITION...MALVERN...COMO AND MORRISON/ROCKWOOD PARK.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 30 AND 40.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
THE QUAD CITIES.

&&

LAT...LON 4168 8980 4181 9003 4190 8992 4184 8963
      4181 8963
TIME...MOT...LOC 2356Z 306DEG 28KT 4181 8990 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

05/87

2 follow-up statements

168 
WWUS53 KDVN 230002
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
702 PM CDT MON JUN 22 2015

ILC195-230030-
/O.CON.KDVN.TO.W.0013.000000T0000Z-150623T0030Z/
WHITESIDE IL-
702 PM CDT MON JUN 22 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
WHITESIDE COUNTY...
    
AT 701 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED OVER EMERSON...OR NEAR STERLING...MOVING EAST 
SOUTHEAST AT 35 MPH.

HAZARD...TORNADO AND PING PONG BALL SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  EMERSON AROUND 705 PM CDT.
  ROCK FALLS AROUND 710 PM CDT.
  STERLING AROUND 715 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
AGNEW...UNIONVILLE...DOUGLAS PARK...WHITE PIGEON...GALT...ROUND
GROVE...GRIMES ADDITION...MALVERN...COMO AND MORRISON/ROCKWOOD PARK.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 30 AND 40.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4168 8980 4181 9003 4190 8992 4184 8963
      4181 8963
TIME...MOT...LOC 0001Z 287DEG 31KT 4179 8981 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

05/87

065 
WWUS53 KDVN 230006
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
706 PM CDT MON JUN 22 2015

ILC195-230030-
/O.CON.KDVN.TO.W.0013.000000T0000Z-150623T0030Z/
WHITESIDE IL-
706 PM CDT MON JUN 22 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
WHITESIDE COUNTY...
    
AT 705 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED OVER EMERSON...OR NEAR STERLING...MOVING EAST AT 50 MPH.

HAZARD...TORNADO AND PING PONG BALL SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  ROCK FALLS AROUND 710 PM CDT.
  STERLING AROUND 715 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
AGNEW...UNIONVILLE...DOUGLAS PARK...WHITE PIGEON...GALT...ROUND
GROVE...GRIMES ADDITION...MALVERN...COMO AND MORRISON/ROCKWOOD PARK.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 30 AND 40.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4168 8980 4181 9003 4190 8992 4184 8963
      4181 8963
TIME...MOT...LOC 0005Z 279DEG 44KT 4180 8978 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

05/87

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 8:28 AM CDT	Special Weather Statement	DVN	Carroll, Jo Daviess	62 min
Jun 22, 9:00 AM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess	60 min
Jun 22, 9:26 AM CDT	Severe Thunderstorm Warning	DVN	Carroll, Stephenson	48 min
Jun 22, 10:23 AM CDT	Special Weather Statement	DVN	Carroll	37 min
Jun 22, 10:43 AM CDT	Special Weather Statement	DVN	Jo Daviess	32 min
Jun 22, 11:07 AM CDT	Special Weather Statement	DVN	Bureau	38 min
Jun 22, 6:44 PM CDT	Severe Thunderstorm Warning	DVN	Whiteside	31 min
Jun 22, 6:52 PM CDT	Tornado Warning	DVN	Whiteside	23 min

Nearby

Tornado Warnings in Illinois, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.