Alert archive / Illinois / Tornado Warnings in 2016

Tornado Warning 33, NWS Quad Cities, IA

October 6, 2016Henry County, Rock Island County, Illinois

NWS Quad Cities, IA issued this tornado warning at Oct 6, 2016, 10:42 PM CDT for Henry County, Rock Island County, Illinois. It was in force for 24 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, 10:42 PM CDT (03:42 UTC)
Expired
Oct 6, 2016, 11:06 PM CDT
In force
24 min
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Henry County, IL, Rock Island County, IL

The radar

The Quad Cities radar (KDVN), 25 km from the middle of the area, began a volume at 03:46 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
Oct 6, 10:44 PM CDTTSTM WND DMG2 S Coal Valley, ILSPOTTER REPORTED TREE DAMAGE AND DAMAGE TO A SHED AT ARROWHEAD RANCH.

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, 3.7 hours before the alert went out and 22 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 2016-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2016-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 197 square meters per square second.19395878Sfc1 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
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.

195 
WFUS53 KDVN 070342
TORDVN
ILC073-161-070430-
/O.NEW.KDVN.TO.W.0033.161007T0342Z-161007T0430Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
1042 PM CDT THU OCT 6 2016

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN HENRY COUNTY IN NORTHWESTERN ILLINOIS...
  SOUTHEASTERN ROCK ISLAND COUNTY IN NORTHWESTERN ILLINOIS...

* UNTIL 1130 PM CDT
    
* AT 1042 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER COAL VALLEY...OR NEAR MOLINE...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...
  SILVIS AND COLONA AROUND 1055 PM CDT. 
  CLEVELAND AND OSBORN AROUND 1100 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE SILVIS
HEIGHTS...COYNE CENTER...DAYTON...JOSLIN...FRUITLAND...INDIAN BLUFF
GOLF COURSE...GREEN RIVER...MOLINE QUAD-CITY AIRPORT...CARBON CLIFF
AND SUNNY HILL ESTATES.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 14.
 INTERSTATE 74 IN ILLINOIS NEAR MILE MARKER 3.
 INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 7.
 INTERSTATE 280 BETWEEN MILE MARKERS 16 AND 18.

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 4133 9048 4143 9059 4160 9027 4151 9011
TIME...MOT...LOC 0342Z 235DEG 41KT 4140 9049 

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

$$

MCCLURE
2 follow-up statements
004 
WWUS53 KDVN 070352
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
1052 PM CDT THU OCT 6 2016

ILC073-161-070430-
/O.CON.KDVN.TO.W.0033.000000T0000Z-161007T0430Z/
HENRY IL-ROCK ISLAND IL-
1052 PM CDT THU OCT 6 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT FOR
NORTHWESTERN HENRY AND SOUTHEASTERN ROCK ISLAND COUNTIES...
    
AT 1051 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED OVER COLONA...OR NEAR EAST MOLINE...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...
  CLEVELAND AROUND 1055 PM CDT. 
  OSBORN AROUND 1100 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE SILVIS
HEIGHTS...GREEN RIVER...CARBON CLIFF...SUNNY HILL ESTATES...ROCK
ISLAND COUNTY FAIRGROUNDS...BARSTOW...DAYTON...JOSLIN...SHADY BEACH
AND SUNNY HILL.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 2 AND 14.
 INTERSTATE 88 BETWEEN MILE MARKERS 1 AND 7.

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 4136 9042 4150 9046 4160 9027 4151 9011
TIME...MOT...LOC 0351Z 235DEG 41KT 4146 9037 

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

$$

MCCLURE
844 
WWUS53 KDVN 070406
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
1106 PM CDT THU OCT 6 2016

ILC073-161-070416-
/O.CAN.KDVN.TO.W.0033.000000T0000Z-161007T0430Z/
HENRY IL-ROCK ISLAND IL-
1106 PM CDT THU OCT 6 2016

...THE TORNADO WARNING FOR NORTHWESTERN HENRY AND SOUTHEASTERN ROCK
ISLAND COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4136 9042 4150 9046 4160 9027 4151 9011
TIME...MOT...LOC 0405Z 235DEG 41KT 4156 9018 

$$

MCCLURE

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 10:08 PM CDTSevere Thunderstorm WarningDVNMercer, Rock Island52 min
Oct 6, 10:33 PM CDTTornado WarningDVNRock Island27 min
Oct 6, 10:55 PM CDTTornado WarningDVNRock Island, Whiteside35 min

Nearby

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