Alert archive / Illinois / Tornado Warnings in 2016

Tornado Warning 34, NWS Quad Cities, IA

October 6, 2016Rock Island County, Whiteside County, Illinois; Scott County, Iowa

NWS Quad Cities, IA issued this tornado warning at Oct 6, 2016, 10:55 PM CDT for Rock Island County, Whiteside County, Illinois; Scott County, Iowa. It was in force for 35 min. 1 report 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: Oct 6, 2016, 10:55 PM CDT (03:55 UTC)
Expired: Oct 6, 2016, 11:30 PM CDT
In force: 35 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Scott County, IA, Rock Island County, IL, Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 33 km from the middle of the area, began a volume at 03:58 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
Oct 6, 10:59 PM CDT	TSTM WND DMG	1 Ssw Cordova, IL	TIME ESTIMATED- 3 TO 4 MATURE ELMS AND OAKS BLOWN DOWN IN CORDOVA

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 00:00Z, 3.9 hours before the alert went out and 27 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: 1 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 1193 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 197 m²/s²
0-3 km storm-relative helicity: 335 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

617 
WFUS53 KDVN 070355
TORDVN
ILC161-195-IAC163-070430-
/O.NEW.KDVN.TO.W.0034.161007T0355Z-161007T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
1055 PM CDT THU OCT 6 2016

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN ROCK ISLAND COUNTY IN NORTHWESTERN ILLINOIS...
  NORTHWESTERN WHITESIDE COUNTY IN NORTHWESTERN ILLINOIS...
  EAST CENTRAL SCOTT COUNTY IN EAST CENTRAL IOWA...

* UNTIL 1130 PM CDT
    
* AT 1055 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER PRINCETON...OR 8 MILES NORTHEAST OF
  BETTENDORF...MOVING NORTHEAST AT 45 MPH.

  HAZARD...TORNADO. 

  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...
  CAMANCHE AROUND 1105 PM CDT. 
  ALBANY AROUND 1110 PM CDT. 
  GARDEN PLAIN AND EAST CLINTON AROUND 1115 PM CDT. 
  FULTON AROUND 1120 PM CDT. 
  MORRISON AROUND 1125 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
UNIONVILLE...ILLINIWEK FOREST PRESERVE...PRINCETON WILDLIFE AREA...
WHITESIDE COUNTY FAIRGROUNDS...UNION GROVE...FISHERMANS CORNER...
FENTON AND NEWTON CORNERS.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS 303 AND 306.
 INTERSTATE 88 BETWEEN MILE MARKERS 14 AND 27.

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.

&&

LAT...LON 4174 8991 4156 9040 4167 9048 4173 9037
      4173 9036 4174 9033 4173 9032 4177 9028
      4180 9019 4181 9018 4185 9018 4192 9006
TIME...MOT...LOC 0355Z 234DEG 40KT 4166 9036 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MCCLURE

3 follow-up statements

690 
WWUS53 KDVN 070402
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
1102 PM CDT THU OCT 6 2016

IAC163-070412-
/O.CAN.KDVN.TO.W.0034.000000T0000Z-161007T0430Z/
SCOTT IA-
1102 PM CDT THU OCT 6 2016

...THE TORNADO WARNING FOR EAST CENTRAL SCOTT COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4174 8991 4162 9024 4173 9032 4177 9028
      4180 9019 4181 9018 4185 9018 4192 9006
TIME...MOT...LOC 0402Z 234DEG 45KT 4171 9025 

$$

ILC161-195-070430-
/O.CON.KDVN.TO.W.0034.000000T0000Z-161007T0430Z/
ROCK ISLAND IL-WHITESIDE IL-
1102 PM CDT THU OCT 6 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT FOR
NORTHEASTERN ROCK ISLAND AND NORTHWESTERN WHITESIDE COUNTIES...
    
AT 1102 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR CORDOVA...OR 9 MILES SOUTH OF CLINTON...MOVING
NORTHEAST AT 50 MPH.

HAZARD...TORNADO. 

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...
  ALBANY AROUND 1105 PM CDT. 
  GARDEN PLAIN AND EAST CLINTON AROUND 1110 PM CDT. 
  FULTON AROUND 1115 PM CDT. 
  MORRISON AROUND 1120 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
WHITESIDE COUNTY FAIRGROUNDS...UNIONVILLE...UNION GROVE...FENTON AND
NEWTON CORNERS.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 15 AND 27.
 
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.

&&

LAT...LON 4174 8991 4162 9024 4173 9032 4177 9028
      4180 9019 4181 9018 4185 9018 4192 9006
TIME...MOT...LOC 0402Z 234DEG 45KT 4171 9025 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MCCLURE

490 
WWUS53 KDVN 070410
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
1110 PM CDT THU OCT 6 2016

ILC161-070419-
/O.CAN.KDVN.TO.W.0034.000000T0000Z-161007T0430Z/
ROCK ISLAND IL-
1110 PM CDT THU OCT 6 2016

...THE TORNADO WARNING FOR NORTHEASTERN ROCK ISLAND COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4174 8991 4165 9016 4179 9023 4180 9019
      4181 9018 4185 9018 4192 9006
TIME...MOT...LOC 0409Z 234DEG 40KT 4175 9018 

$$

ILC195-070430-
/O.CON.KDVN.TO.W.0034.000000T0000Z-161007T0430Z/
WHITESIDE IL-
1110 PM CDT THU OCT 6 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT FOR
NORTHWESTERN WHITESIDE COUNTY...
    
AT 1109 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ALBANY...OR 7 MILES SOUTH OF CLINTON...MOVING
NORTHEAST AT 45 MPH.

HAZARD...TORNADO. 

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...
  FULTON AROUND 1120 PM CDT. 
  MORRISON AROUND 1125 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
WHITESIDE COUNTY FAIRGROUNDS...UNIONVILLE...UNION GROVE...FENTON AND
NEWTON CORNERS.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 15 AND 27.
 
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.

&&

LAT...LON 4174 8991 4165 9016 4179 9023 4180 9019
      4181 9018 4185 9018 4192 9006
TIME...MOT...LOC 0409Z 234DEG 40KT 4175 9018 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MCCLURE

479 
WWUS53 KDVN 070421
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
1121 PM CDT THU OCT 6 2016

ILC195-070431-
/O.EXP.KDVN.TO.W.0034.000000T0000Z-161007T0430Z/
WHITESIDE IL-
1121 PM CDT THU OCT 6 2016

...THE TORNADO WARNING FOR NORTHWESTERN WHITESIDE COUNTY WILL EXPIRE
AT 1130 PM CDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4174 8991 4165 9016 4179 9023 4180 9019
      4181 9018 4185 9018 4192 9006
TIME...MOT...LOC 0421Z 234DEG 40KT 4183 9004 

$$

MCCLURE

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 6, 10:08 PM CDT	Severe Thunderstorm Warning	DVN	Mercer, Rock Island	52 min
Oct 6, 10:33 PM CDT	Tornado Warning	DVN	Rock Island	27 min
Oct 6, 10:42 PM CDT	Tornado Warning	DVN	Henry, Rock Island	24 min
Oct 6, 9:45 PM CDT	Special Weather Statement	DVN	Henry, Louisa	30 min
Oct 6, 10:15 PM CDT	Tornado Warning	DVN	Muscatine, Scott	15 min

Nearby

Tornado Warnings in Illinois, 2016 Tornado Warnings in Iowa, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.