Alert archive / Illinois / Tornado Warnings in 2016

Tornado Warning 30, NWS Quad Cities, IA

September 7, 2016Henderson County, Illinois; Des Moines County, Iowa

NWS Quad Cities, IA issued this tornado warning at Sep 7, 2016, 8:01 PM CDT for Henderson County, Illinois; Des Moines County, Iowa. It was in force for 29 min. 2 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
Sep 7, 2016, 8:01 PM CDT (01:01 UTC)
Expired
Sep 7, 2016, 8:30 PM CDT
In force
29 min
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Des Moines County, IA, Henderson County, IL

The radar

The Quad Cities radar (KDVN), 99 km from the middle of the area, began a volume at 01:01 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
Sep 7, 8:20 PM CDTFUNNEL CLOUD2 E Olena, ILCONE SHAPED FUNNEL HALFWAY TO GROUND. JUST NORTH OF STRONGHURST. HAS SINCE DISSIPATED VISUALLY.
Sep 7, 8:20 PM CDTFUNNEL CLOUD2 N Stronghurst, ILCONE SHAPED FUNNEL HALFWAY TO GROUND. JUST NORTH OF STRONGHURST. HAS SINCE DISSIPATED VISUALLY.

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, 1.0 hours before the alert went out and 102 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 2016-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 378 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 2016-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 square meters per square second.193958Sfc1 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
378 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
762 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.4

Open this sounding in Storm Lab

The text

As transmitted.

321 
WFUS53 KDVN 080101
TORDVN
ILC071-IAC057-080130-
/O.NEW.KDVN.TO.W.0030.160908T0101Z-160908T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
801 PM CDT WED SEP 7 2016

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL HENDERSON COUNTY IN WEST CENTRAL ILLINOIS...
  SOUTHEASTERN DES MOINES COUNTY IN SOUTHEASTERN IOWA...

* UNTIL 830 PM CDT
    
* AT 801 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER CARMAN...OR NEAR BURLINGTON...MOVING EAST
  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...
  STRONGHURST AND GLADSTONE AROUND 815 PM CDT. 
  BIGGSVILLE AROUND 820 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CARTHAGE LAKE...STARR'S CAVE PARK AND PRESERVE...LONE
TREE...HOPPER... SHOKOKON...DECORRA...MEDIA...HENDERSON COUNTY
FAIRGROUNDS...BURLINGTON REGIONAL AIRPORT AND SPRING GROVE.

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 4073 9117 4087 9117 4090 9081 4072 9080
TIME...MOT...LOC 0101Z 262DEG 37KT 4077 9110 

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

$$

SHEETS
3 follow-up statements
893 
WWUS53 KDVN 080108
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
808 PM CDT WED SEP 7 2016

IAC057-080116-
/O.CAN.KDVN.TO.W.0030.000000T0000Z-160908T0130Z/
DES MOINES IA-
808 PM CDT WED SEP 7 2016

...THE TORNADO WARNING FOR SOUTHEASTERN DES MOINES 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 4073 9108 4083 9108 4084 9107 4088 9081
      4072 9080
TIME...MOT...LOC 0106Z 262DEG 37KT 4078 9102 

$$

ILC071-080130-
/O.CON.KDVN.TO.W.0030.000000T0000Z-160908T0130Z/
HENDERSON IL-
808 PM CDT WED SEP 7 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
SOUTHEASTERN HENDERSON COUNTY...
    
AT 806 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR HEAPSVILLE...OR JUST EAST OF BURLINGTON...MOVING
EAST AT 25 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. 

LOCATIONS IMPACTED INCLUDE...
STRONGHURST...CARMAN...BIGGSVILLE...GULF PORT...MEDIA...LONE TREE...
HOPPER...SHOKOKON...DECORRA...HENDERSON COUNTY FAIRGROUNDS...
OLENA AND HEAPSVILLE.

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 4073 9108 4083 9108 4084 9107 4088 9081
      4072 9080
TIME...MOT...LOC 0106Z 262DEG 37KT 4078 9102 

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

$$

SHEETS
233 
WWUS53 KDVN 080121
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
821 PM CDT WED SEP 7 2016

ILC071-080130-
/O.CON.KDVN.TO.W.0030.000000T0000Z-160908T0130Z/
HENDERSON IL-
821 PM CDT WED SEP 7 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
SOUTHEASTERN HENDERSON COUNTY...
    
AT 820 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER STRONGHURST...OR 11 MILES SOUTHEAST OF BURLINGTON...
MOVING EAST AT 30 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. 

LOCATIONS IMPACTED INCLUDE...
STRONGHURST...MEDIA...HENDERSON COUNTY FAIRGROUNDS...DECORRA...
OLENA AND HOPPER.

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 4073 9098 4082 9099 4083 9094 4084 9081
      4072 9080
TIME...MOT...LOC 0120Z 276DEG 25KT 4074 9092 

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

$$

SHEETS
977 
WWUS53 KDVN 080130
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA/IL
830 PM CDT WED SEP 7 2016

ILC071-080139-
/O.EXP.KDVN.TO.W.0030.000000T0000Z-160908T0130Z/
HENDERSON IL-
830 PM CDT WED SEP 7 2016

...THE TORNADO WARNING FOR SOUTHEASTERN HENDERSON COUNTY WILL EXPIRE
AT 830 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.

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

LAT...LON 4073 9098 4082 9099 4083 9094 4084 9081
      4072 9080
TIME...MOT...LOC 0128Z 262DEG 37KT 4074 9092 

$$

SHEETS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 7:15 PM CDTSpecial Weather StatementDVNHancock, Henderson, McDonough, Mercer, Warren60 min
Sep 7, 7:56 PM CDTSevere Thunderstorm WarningDVNHenderson28 min
Sep 7, 8:36 PM CDTFlash Flood WarningDVNHenderson, Warren6 hr
Sep 8, 1:25 AM CDTSpecial Weather StatementDVNWhiteside50 min
Sep 8, 2:20 AM CDTSpecial Weather StatementDVNCarroll, Whiteside55 min
Sep 8, 12:41 AM CDTSpecial Weather StatementDVNBenton, Cedar, Iowa, Johnson, Jones, Linn64 min
Sep 8, 1:34 AM CDTFlash Flood WarningDVNLinn4 hr
Sep 8, 1:53 AM CDTSpecial Weather StatementDVNCedar, Johnson22 min
Sep 8, 6:33 AM CDTRiver Flood WarningDVNClinton, Scott68 hr

Nearby

Tornado Warnings in Illinois, 2016Tornado Warnings in Iowa, 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.