Alert archive / Iowa / Tornado Warnings in 2015
Tornado Warning 23, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Aug 18, 2015, 3:14 PM CDT for Jones County, Iowa. It was in force for 31 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
- Aug 18, 2015, 3:14 PM CDT (20:14 UTC)
- Expired
- Aug 18, 2015, 3:45 PM CDT
- In force
- 31 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Jones County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 18, 3:18 PM CDT | TSTM WND DMG | Olin, IA | SEVERAL TREES DOWN IN TOWN. |
| Aug 18, 3:41 PM CDT | HAIL 0.25 | E Wyoming, IA |
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 |
|---|---|---|---|
| Aug 18, 1:35 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.2 hours before the alert went out and 75 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1257 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
613
WFUS53 KDVN 182014
TORDVN
IAC105-182045-
/O.NEW.KDVN.TO.W.0023.150818T2014Z-150818T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
314 PM CDT TUE AUG 18 2015
THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A
* TORNADO WARNING FOR...
JONES COUNTY IN EAST CENTRAL IOWA...
* UNTIL 345 PM CDT
* AT 314 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED OVER MORLEY...OR NEAR MECHANICSVILLE...MOVING
NORTHEAST 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...
ANAMOSA AROUND 325 PM CDT.
WYOMING...CENTER JUNCTION AND LANGWORTHY AROUND 335 PM CDT.
ONSLOW AROUND 340 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE SCOTCH
GROVE...TEMPLE HILL...HALE...CAMP COURAGEOUS...PICTURED ROCKS
WILDLIFE AREA...JONES COUNTY FAIRGROUNDS...MONTICELLO MUNICIPAL
AIRPORT...WAPSIPINICON STATE PARK AND CENTRAL PARK.
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 4223 9090 4215 9090 4194 9108 4195 9132
4196 9136 4230 9120 4230 9109
TIME...MOT...LOC 2014Z 206DEG 26KT 4199 9121
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
ERVIN6 follow-up statements
444
WWUS53 KDVN 182016
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
316 PM CDT TUE AUG 18 2015
IAC105-182045-
/O.CON.KDVN.TO.W.0023.000000T0000Z-150818T2045Z/
JONES IA-
316 PM CDT TUE AUG 18 2015
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR CENTRAL
JONES COUNTY...
AT 316 PM CDT...A CONFIRMED TORNADO WAS LOCATED OVER MORLEY...OR 7
MILES NORTH OF MECHANICSVILLE...AND IS NEARLY STATIONARY.
HAZARD...DAMAGING TORNADO.
SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS TORNADO WILL BE NEAR...
WYOMING...CENTER JUNCTION AND LANGWORTHY AROUND 335 PM CDT.
ONSLOW AROUND 340 PM CDT.
MONTICELLO AROUND 345 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE SCOTCH
GROVE...TEMPLE HILL...HALE...CAMP COURAGEOUS...PICTURED ROCKS
WILDLIFE AREA...JONES COUNTY FAIRGROUNDS...MONTICELLO MUNICIPAL
AIRPORT AND CENTRAL PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR
IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4223 9090 4215 9090 4194 9108 4195 9128
4203 9127 4230 9120 4230 9109
TIME...MOT...LOC 2016Z 206DEG 26KT 4201 9120
TORNADO...OBSERVED
HAIL...<.75IN
$$
ERVIN155
WWUS53 KDVN 182019
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
319 PM CDT TUE AUG 18 2015
IAC105-182045-
/O.CON.KDVN.TO.W.0023.000000T0000Z-150818T2045Z/
JONES IA-
319 PM CDT TUE AUG 18 2015
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR CENTRAL
JONES COUNTY...
AT 319 PM CDT...A CONFIRMED TORNADO WAS LOCATED OVER OLIN...OR NEAR
STANWOOD...MOVING NORTHEAST AT 20 MPH.
HAZARD...DAMAGING TORNADO.
SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.
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 TORNADO WILL BE NEAR...
WYOMING...ONSLOW AND CENTER JUNCTION AROUND 345 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE TEMPLE
HILL...HALE...SCOTCH GROVE...CENTRAL PARK AND CAMP COURAGEOUS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A TORNADO IS ON THE GROUND. 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 4223 9090 4215 9090 4194 9108 4195 9128
4203 9127 4213 9120 4224 9107 4225 9095
TIME...MOT...LOC 2019Z 222DEG 17KT 4198 9115
TORNADO...OBSERVED
HAIL...<.75IN
$$
ERVIN243
WWUS53 KDVN 182026
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
326 PM CDT TUE AUG 18 2015
IAC105-182045-
/O.CON.KDVN.TO.W.0023.000000T0000Z-150818T2045Z/
JONES IA-
326 PM CDT TUE AUG 18 2015
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR CENTRAL
JONES COUNTY...
AT 325 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER OLIN...OR 8 MILES NORTH OF STANWOOD...MOVING
NORTHEAST AT 20 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS DANGEROUS STORM WILL BE NEAR...
WYOMING...ONSLOW AND CENTER JUNCTION AROUND 345 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE TEMPLE
HILL...HALE...SCOTCH GROVE...CENTRAL PARK AND CAMP COURAGEOUS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4223 9090 4215 9090 4194 9108 4195 9128
4203 9127 4213 9120 4224 9107 4225 9095
TIME...MOT...LOC 2025Z 223DEG 18KT 4201 9111
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
ERVIN454
WWUS53 KDVN 182030
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
330 PM CDT TUE AUG 18 2015
IAC105-182045-
/O.CON.KDVN.TO.W.0023.000000T0000Z-150818T2045Z/
JONES IA-
330 PM CDT TUE AUG 18 2015
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR CENTRAL
JONES COUNTY...
AT 329 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR OLIN...OR 9 MILES NORTH OF STANWOOD...MOVING
NORTHEAST 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...
WYOMING...ONSLOW AND CENTER JUNCTION AROUND 345 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE TEMPLE
HILL...HALE...SCOTCH GROVE AND CENTRAL PARK.
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 4223 9090 4215 9090 4194 9108 4195 9123
4203 9122 4214 9117 4223 9107 4225 9095
TIME...MOT...LOC 2029Z 223DEG 18KT 4202 9109
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
ERVIN638
WWUS53 KDVN 182036 RRA
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
336 PM CDT TUE AUG 18 2015
IAC105-182045-
/O.CON.KDVN.TO.W.0023.000000T0000Z-150818T2045Z/
JONES IA-
336 PM CDT TUE AUG 18 2015
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 345 PM CDT FOR EASTERN
JONES COUNTY...
AT 336 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR WYOMING...OR 9 MILES NORTHEAST OF STANWOOD...MOVING
NORTHEAST AT 25 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS DANGEROUS STORM WILL BE NEAR...
CENTER JUNCTION AROUND 340 PM CDT.
WYOMING AND ONSLOW AROUND 345 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE HALE
AND CENTRAL PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4223 9090 4215 9090 4194 9108 4195 9116
4203 9117 4211 9114 4220 9104 4225 9095
TIME...MOT...LOC 2036Z 230DEG 25KT 4202 9106
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
ERVIN905
WWUS53 KDVN 182042
SVSDVN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
342 PM CDT TUE AUG 18 2015
IAC105-182052-
/O.EXP.KDVN.TO.W.0023.000000T0000Z-150818T2045Z/
JONES IA-
342 PM CDT TUE AUG 18 2015
...THE TORNADO WARNING FOR EASTERN JONES COUNTY WILL EXPIRE AT 345 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
ARE STILL POSSIBLE WITH THIS THUNDERSTORM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR EAST CENTRAL
IOWA.
LAT...LON 4223 9090 4215 9090 4194 9108 4195 9116
4203 9117 4211 9114 4220 9104 4225 9095
TIME...MOT...LOC 2040Z 206DEG 26KT 4202 9106
$$
ERVINThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 3:34 PM CDT | Special Weather Statement | DVN | Des Moines | 41 min |
| Aug 18, 4:26 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Louisa, Muscatine, Scott | 64 min |
| Aug 18, 4:43 PM CDT | Flash Flood Warning | DVN | Jackson | 3 hr |
| Aug 18, 5:40 PM CDT | Flash Flood Warning | DVN | Clinton, Jackson | 6 hr |
Nearby
Tornado Warnings in Iowa, 2015Every tornado warning in 2015Tornadoes 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.