Alert archive / Illinois / Tornado Warnings in 2020

Tornado Warning 36, NWS Quad Cities, IA

November 10, 2020Bureau County, Putnam County, Illinois

NWS Quad Cities, IA issued this tornado warning at Nov 10, 2020, 3:37 PM CST for Bureau County, Putnam County, Illinois. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 10, 2020, 3:37 PM CST (21:37 UTC)
Expired: Nov 10, 2020, 3:57 PM CST
In force: 20 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Bureau County, IL, Putnam County, IL

The radar

The Quad Cities radar (KDVN), 109 km from the middle of the area, began a volume at 21:36 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 10, 11:22 AM CST	Severe Thunderstorm Watch	SPC	7 hr
Nov 10, 2:05 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.6 hours before the alert went out and 103 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: 97 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 614 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 173 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

369 
WFUS53 KDVN 102137
TORDVN
ILC011-155-102215-
/O.NEW.KDVN.TO.W.0036.201110T2137Z-201110T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
337 PM CST Tue Nov 10 2020

The National Weather Service in the Quad Cities has issued a

* Tornado Warning for...
  Central Putnam County in north central Illinois...
  Southeastern Bureau County in north central Illinois...

* Until 415 PM CST.
    
* At 337 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Henry, or near Hennepin, moving northeast at 55
  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...
  Bureau Junction around 345 PM CST.
  Hennepin, DePue and Granville around 350 PM CST.
  Spring Valley around 355 PM CST.

Other locations impacted by this tornadic thunderstorm include
Seatonville, Ottville, Putnam, Spring Valley Airport, Mark, Coal
Hollow, Lake Thunderbird, Hollowayville, Florid and Lone Tree
Corners.

This includes the following highways...
 Interstate 80 in Illinois between mile markers 64 and 69.
 Interstate 180 between mile markers 1 and 10.

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 4115 8936 4115 8951 4120 8957 4142 8931
      4132 8916
TIME...MOT...LOC 2137Z 218DEG 46KT 4119 8944 

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

$$

McClure

3 follow-up statements

710 
WWUS53 KDVN 102142
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
342 PM CST Tue Nov 10 2020

ILC011-155-102215-
/O.CON.KDVN.TO.W.0036.000000T0000Z-201110T2215Z/
Putnam IL-Bureau IL-
342 PM CST Tue Nov 10 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CST FOR CENTRAL
PUTNAM AND SOUTHEASTERN BUREAU COUNTIES...
    
At 342 PM CST, a severe thunderstorm capable of producing a tornado
was located near Hennepin, moving northeast at 55 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...
  Bureau Junction around 345 PM CST.
  Hennepin, DePue and Granville around 350 PM CST.
  Spring Valley around 355 PM CST.

Other locations impacted by this tornadic thunderstorm include
Seatonville, Ottville, Putnam, Spring Valley Airport, Mark, Coal
Hollow, Lake Thunderbird, Hollowayville and Florid.

This includes the following highways...
 Interstate 80 in Illinois between mile markers 64 and 69.
 Interstate 180 between mile markers 1 and 10.

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 4115 8936 4119 8948 4122 8955 4142 8931
      4132 8916
TIME...MOT...LOC 2142Z 216DEG 48KT 4123 8940 

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

$$

McClure

979 
WWUS53 KDVN 102147
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
347 PM CST Tue Nov 10 2020

ILC011-155-102215-
/O.CON.KDVN.TO.W.0036.000000T0000Z-201110T2215Z/
Putnam IL-Bureau IL-
347 PM CST Tue Nov 10 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CST FOR NORTHERN
PUTNAM AND SOUTHEASTERN BUREAU COUNTIES...
    
At 347 PM CST, a severe thunderstorm capable of producing a tornado
was located over Hennepin, 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...
  Spring Valley around 400 PM CST.

Other locations impacted by this tornadic thunderstorm include
Seatonville, Ottville, Mark, Spring Valley Airport, Hollowayville and
Florid.

This includes the following highways...
 Interstate 80 in Illinois between mile markers 64 and 69.
 Interstate 180 between mile markers 1 and 9.

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.

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 4118 8933 4124 8942 4127 8946 4142 8931
      4132 8916
TIME...MOT...LOC 2147Z 224DEG 45KT 4124 8930 

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

$$

McClure

602 
WWUS53 KDVN 102157
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
357 PM CST Tue Nov 10 2020

ILC011-155-102207-
/O.CAN.KDVN.TO.W.0036.000000T0000Z-201110T2215Z/
Putnam IL-Bureau IL-
357 PM CST Tue Nov 10 2020

...THE TORNADO WARNING FOR NORTHERN PUTNAM AND SOUTHEASTERN BUREAU
COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A Tornado Watch remains in effect until 800 PM CST for north central
Illinois.

LAT...LON 4118 8933 4124 8942 4127 8946 4142 8931
      4132 8916
TIME...MOT...LOC 2155Z 218DEG 46KT 4134 8919 

$$

McClure

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 10, 2:41 AM CST	Wind Advisory	DVN	Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more	17 hr
Nov 10, 12:45 PM CST	Severe Thunderstorm Warning	DVN	Hancock	45 min
Nov 10, 1:28 PM CST	Severe Thunderstorm Warning	DVN	Henderson, Mercer, Warren	47 min
Nov 10, 1:29 PM CST	Severe Thunderstorm Warning	DVN	Hancock, McDonough	46 min
Nov 10, 1:49 PM CST	Tornado Warning	DVN	Mercer, Rock Island	26 min
Nov 10, 1:57 PM CST	Tornado Warning	DVN	Henderson, Mercer, Warren	15 min
Nov 10, 2:07 PM CST	Severe Thunderstorm Warning	DVN	Henry, Rock Island, Whiteside	38 min
Nov 10, 2:11 PM CST	Severe Thunderstorm Warning	DVN	Henry, McDonough, Mercer, Warren	34 min
Nov 10, 2:23 PM CST	Tornado Warning	DVN	Henry, Rock Island, Whiteside	17 min
Nov 10, 2:38 PM CST	Severe Thunderstorm Warning	DVN	Carroll, Whiteside	52 min
Nov 10, 2:40 PM CST	Severe Thunderstorm Warning	DVN	Bureau, Henry	50 min
Nov 10, 2:54 PM CST	Tornado Warning	DVN	Carroll, Whiteside	19 min
Nov 10, 3:19 PM CST	Severe Thunderstorm Warning	DVN	Stephenson	24 min
Nov 10, 3:21 PM CST	Severe Thunderstorm Warning	DVN	Bureau, Putnam	39 min
Nov 10, 3:57 PM CST	Severe Thunderstorm Warning	DVN	Bureau, Putnam	18 min

Nearby

Tornado Warnings in Illinois, 2020 Every tornado warning in 2020 Tornadoes in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.