Alert archive / Iowa / Tornado Warnings in 2014

Tornado Warning 5, NWS Quad Cities, IA

April 13, 2014Clinton County, Jackson County, Iowa

NWS Quad Cities, IA issued this tornado warning at Apr 13, 2014, 7:48 PM CDT for Clinton County, Jackson County, Iowa. It was in force for 27 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: Apr 13, 2014, 7:48 PM CDT (00:48 UTC)
Expired: Apr 13, 2014, 8:15 PM CDT
In force: 27 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Clinton County, IA, Jackson County, IA

The radar

The Quad Cities radar (KDVN), 68 km from the middle of the area, began a volume at 00:51 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 nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.8 hours before the alert went out and 66 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: 489 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 510 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 313 m²/s²
0-3 km storm-relative helicity: 300 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

658 
WFUS53 KDVN 140048
TORDVN
IAC045-097-140115-
/O.NEW.KDVN.TO.W.0005.140414T0048Z-140414T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
748 PM CDT SUN APR 13 2014

THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL CLINTON COUNTY IN EAST CENTRAL IOWA...
  JACKSON COUNTY IN EAST CENTRAL IOWA...

* UNTIL 815 PM CDT

* AT 746 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR MAQUOKETA...AND MOVING NORTHEAST AT 40
  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...
  SPRAGUEVILLE AROUND 755 PM CDT.
  SPRINGBROOK AROUND 800 PM CDT.
  BELLEVUE AROUND 810 PM CDT.

OTHER LOCATIONS AFFECTED INCLUDE BELLEVUE STATE PARK...JACKSON COUNTY
FAIRGROUNDS AND DUCK CREEK COUNTY PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4237 9051 4230 9042 4228 9043 4222 9039
      4220 9036 4220 9034 4219 9029 4214 9023
      4196 9057 4208 9075
TIME...MOT...LOC 0048Z 221DEG 35KT 4209 9058

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

$$

12

3 follow-up statements

803 
WWUS53 KDVN 140058
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
758 PM CDT SUN APR 13 2014

IAC045-140108-
/O.CAN.KDVN.TO.W.0005.000000T0000Z-140414T0115Z/
CLINTON IA-
758 PM CDT SUN APR 13 2014

...THE TORNADO WARNING FOR NORTH CENTRAL CLINTON COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4230 9042 4228 9043 4222 9039 4220 9036
      4219 9030 4214 9023 4203 9044 4203 9053
      4208 9068 4237 9051
TIME...MOT...LOC 0058Z 225DEG 31KT 4210 9051

$$

IAC097-140115-
/O.CON.KDVN.TO.W.0005.000000T0000Z-140414T0115Z/
JACKSON IA-
758 PM CDT SUN APR 13 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN JACKSON COUNTY
UNTIL 815 PM CDT...

AT 755 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 5 MILES SOUTHEAST OF ANDREW...AND MOVING NORTHEAST AT 35
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...
  SPRINGBROOK AROUND 805 PM CDT.
  GREEN ISLAND AND BELLEVUE AROUND 815 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE VAN BUREN AND REECEVILLE.

OTHER LOCATIONS AFFECTED INCLUDE BELLEVUE STATE PARK...JACKSON COUNTY
FAIRGROUNDS...DUCK CREEK COUNTY PARK AND SPRUCE CREEK PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4230 9042 4228 9043 4222 9039 4220 9036
      4219 9030 4214 9023 4203 9044 4203 9053
      4208 9068 4237 9051
TIME...MOT...LOC 0058Z 225DEG 31KT 4210 9051

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

$$

12

844 
WWUS53 KDVN 140106
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
806 PM CDT SUN APR 13 2014

IAC097-140115-
/O.CON.KDVN.TO.W.0005.000000T0000Z-140414T0115Z/
JACKSON IA-
806 PM CDT SUN APR 13 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN JACKSON COUNTY
UNTIL 815 PM CDT...

AT 805 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR SPRINGBROOK...AND MOVING NORTHEAST AT 35 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...
  BELLEVUE AROUND 815 PM CDT.

OTHER LOCATIONS AFFECTED INCLUDE BELLEVUE STATE PARK...DUCK CREEK
COUNTY PARK AND SPRUCE CREEK PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4230 9042 4228 9043 4222 9039 4220 9036
      4219 9030 4214 9023 4203 9043 4205 9052
      4214 9062 4237 9051
TIME...MOT...LOC 0106Z 225DEG 31KT 4215 9045

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

12

198 
WWUS53 KDVN 140111
SVSDVN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
811 PM CDT SUN APR 13 2014

IAC097-140121-
/O.EXP.KDVN.TO.W.0005.000000T0000Z-140414T0115Z/
JACKSON IA-
811 PM CDT SUN APR 13 2014

...THE TORNADO WARNING FOR EASTERN JACKSON COUNTY WILL EXPIRE AT 815
PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS QUICKLY WEAKENED BELOW 
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY.  HOWEVER...GUSTY WINDS ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

LAT...LON 4230 9042 4228 9043 4222 9039 4220 9036
      4219 9030 4214 9023 4203 9043 4205 9052
      4214 9062 4237 9051
TIME...MOT...LOC 0111Z 225DEG 31KT 4218 9041

$$

12

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 14, 9:45 AM CDT	River Flood Warning	DVN	Keokuk	4 days
Apr 14, 10:22 AM CDT	River Flood Warning	DVN	Johnson, Washington	64 hr

Nearby

Tornado Warnings in Iowa, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.