Alert archive / Iowa / Tornado Warnings in 2016

Tornado Warning 26, NWS Quad Cities, IA

July 23, 2016Jackson County, Jones County, Iowa

NWS Quad Cities, IA issued this tornado warning at Jul 23, 2016, 5:12 PM CDT for Jackson County, Jones County, Iowa. It was in force for 63 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
Jul 23, 2016, 5:12 PM CDT (22:12 UTC)
Expired
Jul 23, 2016, 6:15 PM CDT
In force
63 min
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Jackson County, IA, Jones County, IA

The radar

The Quad Cities radar (KDVN), 59 km from the middle of the area, began a volume at 22:14 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
Jul 23, 5:30 PM CDTTSTM WND DMGWyoming, IAPARTIAL TREES DOWN - TIME ESTIMATED
Jul 23, 6:18 PM CDTTSTM WND DMGW Monmouth, IADELAYED REPORT - BRANCHES DOWNED BY HIGH WIND.

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.

IssuedProductOfficeLasted
Jul 23, 3:23 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.2 hours before the alert went out and 59 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 12:00Z on 2016-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2607 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 12:00Z on 2016-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939Sfc1 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
2607 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
807 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

222 
WFUS53 KDVN 232212
TORDVN
IAC097-105-232315-
/O.NEW.KDVN.TO.W.0026.160723T2212Z-160723T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
512 PM CDT SAT JUL 23 2016

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL JONES COUNTY IN EAST CENTRAL IOWA...
  SOUTHWESTERN JACKSON COUNTY IN EAST CENTRAL IOWA...

* UNTIL 615 PM CDT
    
* AT 511 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER ONSLOW...OR 13 MILES EAST OF
  ANAMOSA...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. 

* THIS DANGEROUS STORM WILL BE NEAR...
  MONMOUTH AND CANTON AROUND 525 PM CDT. 
  NASHVILLE AROUND 535 PM CDT. 
  MAQUOKETA...HURSTVILLE AND FULTON AROUND 545 PM CDT. 
  ANDREW AROUND 550 PM CDT. 
  SPRINGBROOK AROUND 605 PM CDT. 
  PRESTON AND SPRAGUEVILLE AROUND 610 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
EMELINE...SCOTCH GROVE...BUCKHORN...BALDWIN...MAQUOKETA CAVES STATE
PARK... CRAB TOWN...EDEN VALLEY REFUGE...MAQUOKETA MUNICIPAL
AIRPORT...JACKSON COUNTY FAIRGROUNDS AND IRONHILLS.

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 4221 9037 4203 9037 4203 9087 4206 9111
      4218 9111 4225 9041
TIME...MOT...LOC 2211Z 271DEG 28KT 4212 9102 

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

$$

GIBBS
3 follow-up statements
983 
WWUS53 KDVN 232238
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
538 PM CDT SAT JUL 23 2016

IAC097-105-232315-
/O.CON.KDVN.TO.W.0026.000000T0000Z-160723T2315Z/
JONES IA-JACKSON IA-
538 PM CDT SAT JUL 23 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR EAST
CENTRAL JONES AND SOUTHWESTERN JACKSON COUNTIES...
    
AT 538 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER MONMOUTH...OR 10 MILES WEST OF MAQUOKETA...MOVING
EAST AT 20 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...
  NASHVILLE AROUND 555 PM CDT. 
  FULTON AROUND 605 PM CDT. 
  MAQUOKETA AND HURSTVILLE AROUND 610 PM CDT. 
  ANDREW AROUND 615 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
EMELINE...SCOTCH GROVE...BUCKHORN...BALDWIN...MAQUOKETA CAVES STATE
PARK... CRAB TOWN...EDEN VALLEY REFUGE...MAQUOKETA MUNICIPAL
AIRPORT...JACKSON COUNTY FAIRGROUNDS AND IRONHILLS.

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 4221 9037 4203 9037 4203 9087 4206 9111
      4218 9111 4225 9041
TIME...MOT...LOC 2238Z 276DEG 17KT 4209 9087 

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

$$

GIBBS
329 
WWUS53 KDVN 232256
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
556 PM CDT SAT JUL 23 2016

IAC097-105-232315-
/O.CON.KDVN.TO.W.0026.000000T0000Z-160723T2315Z/
JONES IA-JACKSON IA-
556 PM CDT SAT JUL 23 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR EAST
CENTRAL JONES AND SOUTHWESTERN JACKSON COUNTIES...
    
AT 556 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR NASHVILLE...OR NEAR MAQUOKETA...MOVING EAST AT 20
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...
  MAQUOKETA...HURSTVILLE AND FULTON AROUND 610 PM CDT. 
  ANDREW AROUND 615 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
EMELINE...SCOTCH GROVE...BUCKHORN...BALDWIN...MAQUOKETA CAVES STATE
PARK... CRAB TOWN...EDEN VALLEY REFUGE...MAQUOKETA MUNICIPAL
AIRPORT...JACKSON COUNTY FAIRGROUNDS AND IRONHILLS.

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.

MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. IF YOU
CANNOT SAFELY DRIVE AWAY FROM THE TORNADO...AS A LAST RESORT...EITHER
PARK YOUR VEHICLE AND STAY PUT...OR ABANDON YOUR VEHICLE AND LIE DOWN
IN A LOW LYING AREA AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4224 9049 4203 9046 4203 9087 4206 9111
      4218 9111
TIME...MOT...LOC 2256Z 268DEG 16KT 4211 9076 

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

$$

GIBBS
376 
WWUS53 KDVN 232308
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
608 PM CDT SAT JUL 23 2016

IAC097-105-232318-
/O.EXP.KDVN.TO.W.0026.000000T0000Z-160723T2315Z/
JONES IA-JACKSON IA-
608 PM CDT SAT JUL 23 2016

...THE TORNADO WARNING FOR EAST CENTRAL JONES AND SOUTHWESTERN
JACKSON COUNTIES WILL EXPIRE AT 615 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 GUSTY WINDS
AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
EAST CENTRAL IOWA.

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 4224 9049 4203 9046 4203 9087 4206 9111
      4218 9111
TIME...MOT...LOC 2305Z 271DEG 28KT 4211 9076 

$$

GIBBS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 2:30 PM CDTSevere Thunderstorm WarningDVNBuchanan45 min
Jul 23, 3:13 PM CDTSevere Thunderstorm WarningDVNBuchanan, Delaware62 min
Jul 23, 3:18 PM CDTTornado WarningDVNBuchanan57 min
Jul 23, 3:52 PM CDTSevere Thunderstorm WarningDVNBuchanan, Delaware, Dubuque, Jones, Linn53 min
Jul 23, 4:00 PM CDTTornado WarningDVNDelaware45 min
Jul 23, 4:04 PM CDTFlash Flood WarningDVNBuchanan6 hr
Jul 23, 4:22 PM CDTFlash Flood WarningDVNDelaware6 hr
Jul 23, 4:26 PM CDTTornado WarningDVNDelaware20 min
Jul 23, 4:35 PM CDTTornado WarningDVNDubuque, Jackson55 min
Jul 23, 4:38 PM CDTSevere Thunderstorm WarningDVNJackson, Jones67 min
Jul 23, 4:40 PM CDTFlash Flood WarningDVNDubuque, Jackson, Jones6 hr
Jul 23, 4:59 PM CDTSevere Thunderstorm WarningDVNDubuque, Jackson61 min
Jul 23, 6:08 PM CDTSevere Thunderstorm WarningDVNCedar, Clinton, Jackson, Jones67 min
Jul 23, 6:46 PM CDTSpecial Weather StatementDVNClinton59 min

Nearby

Tornado 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.