Alert archive / Iowa / Tornado Warnings in 2017
Tornado Warning 42, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jun 28, 2017, 7:24 PM CDT for Dubuque County, Jackson County, Jones County, Iowa; Jo Daviess County, Illinois. It was in force for 51 min. 1 report 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
- Jun 28, 2017, 7:24 PM CDT (00:24 UTC)
- Expired
- Jun 28, 2017, 8:15 PM CDT
- In force
- 51 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Observed
- Damage threat
- Considerable
- Hail
- 0.75 in
Counties Dubuque County, IA, Jackson County, IA, Jones County, IA, Jo Daviess County, IL
The radar
The Quad Cities radar (KDVN), 95 km from the middle of the area, began a volume at 00:28 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 |
|---|---|---|---|
| Jun 28, 8:23 PM CDT | TSTM WND GST 58 | Dubuque Regional Arpt, 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 |
|---|---|---|---|
| Jun 28, 2:53 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.4 hours before the alert went out and 95 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
- 1521 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1099 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 259 m²/s²
- 0-3 km storm-relative helicity
- 334 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 15.1
The text
As transmitted.
961
WFUS53 KDVN 290024
TORDVN
ILC085-IAC061-097-105-290115-
/O.NEW.KDVN.TO.W.0042.170629T0024Z-170629T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA
Issued by National Weather Service Des Moines IA
724 PM CDT WED JUN 28 2017
The National Weather Service in Quad Cities has issued a
* Tornado Warning for...
Northwestern Jo Daviess County in northwestern Illinois...
North central Jackson County in east central Iowa...
Southeastern Dubuque County in northeastern Iowa...
North central Jones County in east central Iowa...
* Until 815 PM CDT.
* At 724 PM CDT, a confirmed large and extremely dangerous tornado
was located near Cascade, or 20 miles southwest of Dubuque, moving
northeast at 35 mph.
This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!
HAZARD...Damaging tornado.
SOURCE...Law enforcement confirmed tornado.
IMPACT...You are in a life-threatening situation. Flying debris
may be deadly to those caught without shelter. Mobile
homes will be destroyed. Considerable damage to homes,
businesses, and vehicles is likely and complete
destruction is possible.
* Locations impacted include...
Dubuque, Galena, Asbury, Cascade, Epworth, East Dubuque, Farley,
Peosta, Worthington, Menominee, St. Donatus, Centralia, Sageville,
Bernard, Durango, Graf, Dubuque Regional Airport, Fillmore, Aiken
and Rockdale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, 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 4254 9064 4251 9064 4251 9052 4235 9038
4228 9106 4237 9113 4240 9113 4260 9069
TIME...MOT...LOC 0024Z 247DEG 31KT 4234 9103
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...<.75IN
$$
RP Kinney3 follow-up statements
804
WWUS53 KDVN 290032
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA
Issued by National Weather Service Des Moines IA
732 PM CDT WED JUN 28 2017
ILC085-IAC061-097-105-290115-
/O.CON.KDVN.TO.W.0042.000000T0000Z-170629T0115Z/
Jo Daviess IL-Jackson IA-Dubuque IA-Jones IA-
732 PM CDT WED JUN 28 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN JO DAVIESS...NORTH CENTRAL JACKSON...SOUTHEASTERN
DUBUQUE AND NORTHERN JONES COUNTIES...
At 731 PM CDT, a confirmed large and extremely dangerous tornado was
located about 5 miles north of Cascade, moving northeast at 35 mph.
This is a PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!
HAZARD...Damaging tornado.
SOURCE...Law enforcement confirmed tornado.
IMPACT...You are in a life-threatening situation. Flying debris may
be deadly to those caught without shelter. Mobile homes
will be destroyed. Considerable damage to homes,
businesses, and vehicles is likely and complete destruction
is possible.
Locations impacted include...
Dubuque, Galena, Asbury, Cascade, Epworth, East Dubuque, Farley,
Peosta, Menominee, St. Donatus, Centralia, Sageville, Bernard,
Durango, Graf, Dubuque Regional Airport, Fillmore, Aiken, Rockdale
and Lattnerville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a large, extremely dangerous and potentially deadly
tornado is on the ground. To protect your life, TAKE COVER NOW! Move
to a basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4254 9064 4251 9064 4251 9052 4235 9038
4229 9101 4240 9111 4260 9069
TIME...MOT...LOC 0031Z 247DEG 31KT 4236 9095
TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.00IN
$$
RP Kinney990
WWUS53 KDVN 290049
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA
Issued by National Weather Service Des Moines IA
749 PM CDT WED JUN 28 2017
ILC085-IAC061-097-105-290115-
/O.CON.KDVN.TO.W.0042.000000T0000Z-170629T0115Z/
Jo Daviess IL-Jackson IA-Dubuque IA-Jones IA-
749 PM CDT WED JUN 28 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN JO DAVIESS...NORTH CENTRAL JACKSON...SOUTHEASTERN
DUBUQUE AND NORTHERN JONES COUNTIES...
At 749 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Peosta, or 8 miles southwest of Dubuque, moving east
at 35 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.
Locations impacted include...
Dubuque, Galena, Asbury, Cascade, Epworth, East Dubuque, Farley,
Peosta, Menominee, St. Donatus, Centralia, Sageville, Bernard,
Durango, Graf, Dubuque Regional Airport, Fillmore, Aiken, Rockdale
and Lattnerville.
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 4254 9064 4251 9064 4251 9052 4235 9038
4229 9101 4240 9111 4260 9069
TIME...MOT...LOC 0049Z 250DEG 32KT 4241 9079
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
RP Kinney468
WWUS53 KDVN 290106 RRA
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA
Issued by National Weather Service Des Moines IA
806 PM CDT WED JUN 28 2017
IAC061-097-105-ILC085-290115-
/O.EXP.KDVN.TO.W.0042.000000T0000Z-170629T0115Z/
Jo Daviess IL-Jackson IA-Dubuque IA-Jones IA-
806 PM CDT WED JUN 28 2017
...THE TORNADO WARNING FOR NORTHWESTERN JO DAVIESS...NORTH CENTRAL
JACKSON...SOUTHEASTERN DUBUQUE AND NORTHERN JONES COUNTIES WILL
EXPIRE AT 815 PM CDT...
The tornadic thunderstorm which prompted the warning has
weakened. Therefore, the warning will be allowed to expire.
However gusty winds and heavy rain are
still possible with this thunderstorm.
A tornado watch remains in effect until 1000 PM CDT for northwestern
Illinois...and northeastern and east central Iowa.
Remember, a Tornado Warning still remains in effect for southwest
Jackson County and southeast Jones County.
LAT...LON 4254 9064 4251 9064 4251 9052 4235 9038
4229 9101 4240 9111 4260 9069
TIME...MOT...LOC 0105Z 256DEG 28KT 4239 9069
$$
ERVINThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 7:02 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 43 min |
| Jun 28, 7:24 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 51 min |
| Jun 28, 7:28 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Jones | 38 min |
| Jun 28, 7:47 PM CDT | Tornado Warning | DVN | Clinton, Jackson, Jones | 43 min |
| Jun 28, 8:01 PM CDT | Severe Thunderstorm Warning | DVN | Jones, Linn | 23 min |
| Jun 28, 8:24 PM CDT | Tornado Warning | DVN | Jackson | 51 min |
| Jun 28, 9:12 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 48 min |
| Jun 28, 9:18 PM CDT | River Flood Warning | DVN | Clinton, Scott | 4 days |
| Jun 28, 10:03 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 42 min |
| Jun 29, 4:54 PM CDT | Special Weather Statement | DVN | Buchanan | 36 min |
| Jun 28, 7:36 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 54 min |
| Jun 28, 8:27 PM CDT | Flash Flood Warning | DVN | Jo Daviess, Stephenson | 6 hr |
| Jun 28, 9:43 PM CDT | Special Weather Statement | DVN | Hancock | 62 min |
| Jun 28, 9:55 PM CDT | Special Weather Statement | DVN | Stephenson | 35 min |
| Jun 29, 10:52 AM CDT | River Flood Warning | DVN | Stephenson | 3 days |
| Jun 29, 10:52 AM CDT | River Flood Warning | DVN | Whiteside | 7 days |
| Jun 29, 10:52 AM CDT | River Flood Warning | DVN | Henry, Rock Island, Whiteside | 8 days |
| Jun 29, 10:52 AM CDT | River Flood Warning | DVN | Henry, Rock Island | 7 days |
Nearby
Tornado Warnings in Iowa, 2017Tornado Warnings in Illinois, 2017Every tornado warning in 2017Tornadoes in 2017
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.