Alert archive / Iowa / Tornado Warnings in 2015

Tornado Warning 18, NWS Quad Cities, IA

July 16, 2015Des Moines County, Iowa; Henderson County, Illinois

NWS Quad Cities, IA issued this tornado warning at Jul 16, 2015, 5:45 PM CDT for Des Moines County, Iowa; Henderson County, Illinois. It was in force for 45 min. 7 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: Jul 16, 2015, 5:45 PM CDT (22:45 UTC)
Expired: Jul 16, 2015, 6:30 PM CDT
In force: 45 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Des Moines County, IA, Henderson County, IL

The radar

The Quad Cities radar (KDVN), 93 km from the middle of the area, began a volume at 22:49 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
Jul 16, 5:45 PM CDT	HAIL 1.75	2 Wnw Burlington, IA
Jul 16, 5:49 PM CDT	FUNNEL CLOUD	W Burlington, IA	STARTING TO DISSIPATE...NOT TOUCHING THE GROUND.
Jul 16, 5:55 PM CDT	TORNADO	Burlington, IA	POSSIBLE TORNADO OVER BURLINGTON MOVING TOWARD GULFPORT
Jul 16, 5:57 PM CDT	FUNNEL CLOUD	1 S Burlington, IA	2 FUNNEL CLOUDS. OVER HILLSIDE DISTRICT THE OTHER SOUTH OF BURLINGTON MOVING TOWARD THE RIVER.
Jul 16, 6:04 PM CDT	TORNADO 1	3 Sw Gladstone, IL	RATING EF-1. ESTIMATED PEAK WIND 95 MPH. PATH LENGTH 0.84 MILES. MAX WIDTH 100 YARDS. START TIME 604 PM CDT. START LOCATION 2.9 MILES SW GLADSTONE IL. END TIME 607 PM CDT. END LOCATION 2.4 MILES SW GLADSTONE IL.
Jul 16, 6:19 PM CDT	TSTM WND DMG	1 E Gulfport, IL	SEMI OVERTURNED BETWEEN GLADSTONE AND BURLINGTON ON HWY 34.
Jul 16, 6:39 PM CDT	TORNADO	1 Sw Biggsville, IL	POSSIBLE 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
Jul 16, 4:55 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.8 hours before the alert went out and 97 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1260 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 229 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

010 
WFUS53 KDVN 162245
TORDVN
ILC071-IAC057-162330-
/O.NEW.KDVN.TO.W.0018.150716T2245Z-150716T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
545 PM CDT THU JUL 16 2015

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

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

* UNTIL 630 PM CDT
    
* AT 545 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER BURLINGTON...MOVING EAST AT 25 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 DANGEROUS STORM WILL BE NEAR...
  BURLINGTON AND GULF PORT AROUND 555 PM CDT.
  STRONGHURST AROUND 610 PM CDT.
  GLADSTONE AROUND 615 PM CDT.
  OQUAWKA AND BIGGSVILLE AROUND 620 PM CDT.
  ROZETTA AROUND 625 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CARTHAGE LAKE...HOPPER...SHOKOKON...LONE TREE...MEDIA...BURLINGTON
REGIONAL AIRPORT...DELABAR STATE PARK...SPRING GROVE...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 4082 9126 4101 9087 4086 9078 4085 9079
      4076 9079 4073 9121
TIME...MOT...LOC 2245Z 247DEG 23KT 4078 9116 

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

$$

GIBBS

5 follow-up statements

783 
WWUS53 KDVN 162248
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
548 PM CDT THU JUL 16 2015

ILC071-IAC057-162330-
/O.CON.KDVN.TO.W.0018.000000T0000Z-150716T2330Z/
HENDERSON IL-DES MOINES IA-
548 PM CDT THU JUL 16 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR CENTRAL
HENDERSON AND SOUTHEASTERN DES MOINES COUNTIES...
    
AT 547 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER BURLINGTON...MOVING NORTHEAST AT 25 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION.  SPOTTER REPORTED HAIL.

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 610 PM CDT.
  OQUAWKA AND BIGGSVILLE AROUND 620 PM CDT.
  ROZETTA AROUND 625 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CARTHAGE LAKE...HOPPER...SHOKOKON...LONE TREE...MEDIA...BURLINGTON
REGIONAL AIRPORT...DELABAR STATE PARK...SPRING GROVE...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.

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 4082 9126 4101 9087 4086 9078 4085 9079
      4076 9079 4073 9121
TIME...MOT...LOC 2247Z 247DEG 23KT 4079 9113 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

GIBBS

337 
WWUS53 KDVN 162250
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
550 PM CDT THU JUL 16 2015

ILC071-IAC057-162330-
/O.CON.KDVN.TO.W.0018.000000T0000Z-150716T2330Z/
HENDERSON IL-DES MOINES IA-
550 PM CDT THU JUL 16 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR CENTRAL
HENDERSON AND SOUTHEASTERN DES MOINES COUNTIES...
        
AT 550 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER GULF PORT...OR OVER BURLINGTON...MOVING NORTHEAST AT
40 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD. 

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...
  GLADSTONE AROUND 605 PM CDT.
  OQUAWKA AND BIGGSVILLE AROUND 610 PM CDT.
  ROZETTA AROUND 615 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CARTHAGE LAKE...HOPPER...SHOKOKON...LONE TREE...MEDIA...BURLINGTON
REGIONAL AIRPORT...DELABAR STATE PARK...SPRING GROVE...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.

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 4082 9126 4101 9087 4086 9078 4085 9079
      4076 9079 4073 9121
TIME...MOT...LOC 2250Z 235DEG 33KT 4083 9109 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

GIBBS

446 
WWUS53 KDVN 162303
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
603 PM CDT THU JUL 16 2015

ILC071-IAC057-162330-
/O.CON.KDVN.TO.W.0018.000000T0000Z-150716T2330Z/
HENDERSON IL-DES MOINES IA-
603 PM CDT THU JUL 16 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR NORTHERN
HENDERSON AND SOUTHEASTERN DES MOINES COUNTIES...
    
AT 603 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER GULF PORT...OR NEAR BURLINGTON...MOVING EAST AT 25
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 DANGEROUS STORM WILL BE NEAR...
  GLADSTONE AROUND 620 PM CDT.
  OQUAWKA AROUND 625 PM CDT.
  BIGGSVILLE AND ROZETTA AROUND 630 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CARTHAGE LAKE...HOPPER...SHOKOKON...LONE TREE...MEDIA...BURLINGTON
REGIONAL AIRPORT...DELABAR STATE PARK...SPRING GROVE...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.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

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 4084 9121 4101 9087 4086 9078 4085 9079
      4076 9079 4074 9118
TIME...MOT...LOC 2303Z 252DEG 20KT 4081 9104 

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

$$

GIBBS

540 
WWUS53 KDVN 162316
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
616 PM CDT THU JUL 16 2015

IAC057-162325-
/O.CAN.KDVN.TO.W.0018.000000T0000Z-150716T2330Z/
DES MOINES IA-
616 PM CDT THU JUL 16 2015

...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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
WEST CENTRAL ILLINOIS AND SOUTHEASTERN IOWA.

LAT...LON 4078 9109 4081 9110 4090 9101 4092 9096
      4097 9095 4101 9087 4087 9079 4076 9079
      4074 9111
TIME...MOT...LOC 2315Z 243DEG 23KT 4086 9096 

$$

ILC071-162330-
/O.CON.KDVN.TO.W.0018.000000T0000Z-150716T2330Z/
HENDERSON IL-
616 PM CDT THU JUL 16 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR NORTHERN
HENDERSON COUNTY...
    
AT 615 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER GLADSTONE...OR NEAR OQUAWKA...MOVING NORTHEAST AT 25
MPH.

HAZARD...TORNADO AND PING PONG BALL 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 DANGEROUS STORM WILL BE NEAR...
  OQUAWKA AND BIGGSVILLE AROUND 625 PM CDT.
  ROZETTA AROUND 630 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
CARTHAGE LAKE...SHOKOKON...HOPPER...LONE TREE...MEDIA...DELABAR STATE
PARK...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.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

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 4078 9109 4081 9110 4090 9101 4092 9096
      4097 9095 4101 9087 4087 9079 4076 9079
      4074 9111
TIME...MOT...LOC 2315Z 243DEG 23KT 4086 9096 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

GIBBS

957 
WWUS53 KDVN 162322
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
622 PM CDT THU JUL 16 2015

ILC071-162331-
/O.EXP.KDVN.TO.W.0018.000000T0000Z-150716T2330Z/
HENDERSON IL-
622 PM CDT THU JUL 16 2015

...THE TORNADO WARNING FOR NORTHERN HENDERSON COUNTY WILL EXPIRE AT
630 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.  HOWEVER SMALL HAIL
AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
WEST CENTRAL ILLINOIS AND SOUTHEASTERN IOWA.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR
NORTHERN HENDERSON COUNTY.

LAT...LON 4078 9109 4081 9110 4090 9101 4092 9096
      4097 9095 4101 9087 4087 9079 4076 9079
      4074 9111
TIME...MOT...LOC 2315Z 247DEG 23KT 4086 9096 

$$

GIBBS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 3:54 AM CDT	Flash Flood Watch	DVN	Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more	21 hr
Jul 16, 6:47 AM CDT	Special Weather Statement	DVN	Des Moines, Lee, Louisa	88 min
Jul 16, 3:39 PM CDT	River Flood Warning	DVN	Lee	3 days
Jul 16, 5:13 PM CDT	Severe Thunderstorm Warning	DVN	Henry	32 min
Jul 16, 5:26 PM CDT	Special Weather Statement	DVN	Van Buren	34 min
Jul 16, 5:32 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines	43 min
Jul 16, 5:34 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa	41 min
Jul 16, 6:17 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa	43 min
Jul 16, 6:35 PM CDT	Tornado Warning	DVN	Henderson, Warren	55 min
Jul 16, 6:57 PM CDT	Tornado Warning	DVN	Rock Island, Whiteside	36 min

Nearby

Tornado Warnings in Iowa, 2015 Tornado Warnings in Illinois, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.