Alert archive / Illinois / Tornado Warnings in 2016

Tornado Warning 10, NWS Quad Cities, IA

March 15, 2016Whiteside County, Illinois

NWS Quad Cities, IA issued this tornado warning at Mar 15, 2016, 8:33 PM CDT for Whiteside County, Illinois. It was in force for 16 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: Mar 15, 2016, 8:33 PM CDT (01:33 UTC)
Expired: Mar 15, 2016, 8:49 PM CDT
In force: 16 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Whiteside County, IL

The radar

The Quad Cities radar (KDVN), 75 km from the middle of the area, began a volume at 01:32 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
Mar 15, 8:33 PM CDT	TORNADO	5 N Deer Grove, IL	TRACK INCLUDING A TREE UPROOTED...DAMAGE TO SHINGLES AND SIDING ON TWO HOMES...AND A SHORT PORTION OF AN IRRIGATION RIG OVERTURNED. WINDS ESTIMATED AROUND 80 MPH WHICH IS AN EF-0 RATING. PATH IS 50 YARDS WIDE AND TRACK IS APPROXIMATELY 1.5 MILES LONG. TORNADO

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
Mar 15, 3:31 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 1.6 hours before the alert went out and 68 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: 1252 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 801 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 330 m²/s²
0-3 km storm-relative helicity: 453 m²/s²
Significant tornado parameter: 3.1
Supercell composite: 12.3

Open this sounding in Storm Lab

The text

As transmitted.

559 
WFUS53 KDVN 160133
TORDVN
ILC195-160200-
/O.NEW.KDVN.TO.W.0010.160316T0133Z-160316T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
833 PM CDT TUE MAR 15 2016

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

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

* UNTIL 900 PM CDT
    
* AT 833 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR DEER GROVE...OR 7 MILES SOUTH OF ROCK
  FALLS...MOVING NORTHEAST AT 40 MPH.

  HAZARD...TORNADO AND QUARTER 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 TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  SOUTHEASTERN WHITESIDE COUNTY.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 43 AND 44.
 
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.

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW.

&&

LAT...LON 4159 8963 4158 8967 4158 8974 4163 8980
      4178 8963
TIME...MOT...LOC 0133Z 227DEG 34KT 4166 8968 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MCCLURE

2 follow-up statements

277 
WWUS53 KDVN 160139
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
839 PM CDT TUE MAR 15 2016

ILC195-160200-
/O.CON.KDVN.TO.W.0010.000000T0000Z-160316T0200Z/
WHITESIDE IL-
839 PM CDT TUE MAR 15 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
SOUTHEASTERN WHITESIDE COUNTY...
    
AT 839 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR ROCK FALLS...MOVING NORTHEAST AT 40 MPH.

HAZARD...TORNADO AND QUARTER 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. 

LOCATIONS IMPACTED INCLUDE...
DEER GROVE.

THIS INCLUDES INTERSTATE 88 BETWEEN MILE MARKERS 43 AND 44.
 
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.

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW.

&&

LAT...LON 4159 8963 4158 8967 4166 8976 4178 8963
TIME...MOT...LOC 0139Z 227DEG 34KT 4170 8962 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MCCLURE

211 
WWUS53 KDVN 160149
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
849 PM CDT TUE MAR 15 2016

ILC195-160159-
/O.CAN.KDVN.TO.W.0010.000000T0000Z-160316T0200Z/
WHITESIDE IL-
849 PM CDT TUE MAR 15 2016

...THE TORNADO WARNING FOR SOUTHEASTERN WHITESIDE COUNTY IS
CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER GUSTY WINDS ARE
STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4159 8963 4158 8967 4166 8976 4178 8963
TIME...MOT...LOC 0148Z 227DEG 34KT 4177 8952 

$$

MCCLURE

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 7:11 PM CDT	Tornado Warning	DVN	Henry, Rock Island	49 min
Mar 15, 7:30 PM CDT	Severe Thunderstorm Warning	DVN	Jo Daviess	45 min
Mar 15, 7:31 PM CDT	Tornado Warning Tornado observed	DVN	Rock Island, Whiteside	44 min
Mar 15, 8:00 PM CDT	Tornado Warning	DVN	Carroll	19 min
Mar 15, 8:55 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	35 min
Mar 15, 8:58 PM CDT	Tornado Warning	DVN	Carroll	12 min

Nearby

Tornado Warnings in Illinois, 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.