Alert archive / Iowa / Tornado Warnings in 2017
Tornado Warning 36, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at May 17, 2017, 7:44 PM CDT for Clinton County, Scott County, Iowa. It was in force for 46 min. 5 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
- May 17, 2017, 7:44 PM CDT (00:44 UTC)
- Expired
- May 17, 2017, 8:30 PM CDT
- In force
- 46 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Clinton County, IA, Scott County, IA
The radar
The Quad Cities radar (KDVN), 40 km from the middle of the area, began a volume at 00:46 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 |
|---|---|---|---|
| May 17, 7:44 PM CDT | TORNADO 0 | 3 Wnw Donahue, IA | A SQUALL LINE TORNADO CAUSED SPORADIC EF-0 DAMAGE ALONG ITS TWO MILE PATH. NUMEROUS TREES WERE DAMAGED WITH A FEW ROTTEN TREES SNAPPED. ROOFING DAMAGE TO A NEW HOME AND GARAGE WERE NOTED AT THE BEGINNING OF THE PATH. THE PEAK ESTIMATED WIND SPEED WAS 80 MPH AL |
| May 17, 7:44 PM CDT | TORNADO 0 | 3 Wnw Donahue, IA | A SQUALL LINE TORNADO CAUSED SPORADIC EF-0 DAMAGE ALONG ITS TWO MILE PATH. NUMEROUS TREES WERE DAMAGED WITH A FEW ROTTEN TREES SNAPPED. ROOFING DAMAGE TO A NEW HOME AND GARAGE WERE NOTED AT THE BEGINNING OF THE PATH. THE PEAK ESTIMATED WIND SPPED WAS 80 MPH AL |
| May 17, 7:44 PM CDT | TORNADO 1 | 3 Wnw Donahue, IA | A SQUALL LINE TORNADO CAUSED A PATH OF EF-1 DAMAGE ALONG ITS TWO MILE PATH. NUMEROUS TREES WERE DAMAGED A PATH THROUGH A FOREST VALLEY OF SNAPPED OFF TREES AND UPROOTED MATURE TREES. ROOFING DAMAGE TO A NEW HOME AND GARAGE WERE NOTED AT THE BEGINNING OF THE PA |
| May 17, 7:59 PM CDT | TSTM WND GST 60 | Donahue, IA | VERY HEAVY RAIN FALLING. |
| May 17, 8:03 PM CDT | TSTM WND GST 59 | Dewitt, IA | RWIS SITE NEAR US 30/HWY 61 |
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 |
|---|---|---|---|
| May 17, 3:44 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.7 hours before the alert went out and 36 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
- 1161 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1502 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 7.2
The text
As transmitted.
320
WFUS53 KDVN 180044
TORDVN
IAC045-163-180130-
/O.NEW.KDVN.TO.W.0036.170518T0044Z-170518T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
744 PM CDT WED MAY 17 2017
The National Weather Service in the Quad Cities has issued a
* Tornado Warning for...
Northwestern Scott County in east central Iowa...
Southeastern Clinton County in east central Iowa...
* Until 830 PM CDT
* At 744 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Donahue, or 11 miles northwest of Davenport,
moving northeast at 55 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...
Long Grove around 750 PM CDT.
Grand Mound around 755 PM CDT.
DeWitt and McCausland around 800 PM CDT.
Camanche and Low Moor around 805 PM CDT.
Charlotte around 810 PM CDT.
Clinton and Andover around 820 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Bryant, Malone, Maysville, Bulgers Hollow, Camp Liberty, Park View,
Teeds Grove, Goose Lake, Elvira and Camp Miss-Elk-Ton.
This includes Interstate 80 in Iowa between mile markers 286 and 289.
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!
&&
LAT...LON 4203 9015 4200 9014 4196 9016 4194 9016
4191 9015 4188 9017 4183 9018 4158 9073
4173 9087 4203 9034
TIME...MOT...LOC 0044Z 235DEG 46KT 4171 9072
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Gibbs3 follow-up statements
191
WWUS53 KDVN 180054
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
754 PM CDT WED MAY 17 2017
IAC045-163-180130-
/O.CON.KDVN.TO.W.0036.000000T0000Z-170518T0130Z/
Scott IA-Clinton IA-
754 PM CDT WED MAY 17 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR NORTH
CENTRAL SCOTT AND SOUTHEASTERN CLINTON COUNTIES...
At 753 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Long Grove, or 13 miles north of Davenport, moving
northeast at 50 mph. There is another possible tornado near Grand
Mound.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
McCausland around 800 PM CDT.
Camanche and Low Moor around 810 PM CDT.
Andover around 820 PM CDT.
Clinton around 825 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Bryant, Malone, Bulgers Hollow, Park View, Camp Miss-Elk-Ton, Clinton
Municipal Airport, Teeds Grove, Goose Lake, Clinton County
Fairgrounds and Scott County Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 4203 9015 4200 9014 4196 9016 4194 9016
4191 9015 4188 9017 4183 9018 4164 9060
4180 9076 4203 9034
TIME...MOT...LOC 0053Z 244DEG 43KT 4175 9059
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Gibbs628
WWUS53 KDVN 180108
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
808 PM CDT WED MAY 17 2017
IAC163-180118-
/O.CAN.KDVN.TO.W.0036.000000T0000Z-170518T0130Z/
Scott IA-
808 PM CDT WED MAY 17 2017
...THE TORNADO WARNING FOR NORTH CENTRAL SCOTT COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 1100 PM CDT for northwestern
Illinois...and east central Iowa.
LAT...LON 4200 9014 4196 9016 4191 9015 4183 9019
4173 9041 4174 9041 4174 9043 4175 9042
4176 9045 4176 9046 4177 9047 4177 9054
4176 9056 4189 9058 4203 9034 4203 9015
TIME...MOT...LOC 0108Z 229DEG 42KT 4190 9043
$$
IAC045-180130-
/O.CON.KDVN.TO.W.0036.000000T0000Z-170518T0130Z/
Clinton IA-
808 PM CDT WED MAY 17 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR EASTERN
CLINTON COUNTY...
At 808 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Charlotte, or 10 miles west of Clinton, moving
northeast at 50 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Andover around 820 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Bryant, Malone, Bulgers Hollow, Camp Miss-Elk-Ton, Clinton Municipal
Airport, Teeds Grove, Goose Lake, Clinton County Fairgrounds and
Elvira.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 4200 9014 4196 9016 4191 9015 4183 9019
4173 9041 4174 9041 4174 9043 4175 9042
4176 9045 4176 9046 4177 9047 4177 9054
4176 9056 4189 9058 4203 9034 4203 9015
TIME...MOT...LOC 0108Z 229DEG 42KT 4190 9043
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Gibbs807
WWUS53 KDVN 180122
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
822 PM CDT WED MAY 17 2017
IAC045-180131-
/O.EXP.KDVN.TO.W.0036.000000T0000Z-170518T0130Z/
Clinton IA-
822 PM CDT WED MAY 17 2017
...THE TORNADO WARNING FOR EASTERN CLINTON COUNTY WILL EXPIRE AT 830
PM CDT...
The tornadic thunderstorm which prompted the warning has
weakened. moved out of the warned area. 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 1100 PM CDT for northwestern
Illinois...and east central Iowa.
Remember, a Severe Thunderstorm Warning still remains in effect for
Clinton county.
LAT...LON 4200 9014 4196 9016 4191 9015 4183 9019
4173 9041 4174 9041 4174 9043 4175 9042
4176 9045 4176 9046 4177 9047 4177 9054
4176 9056 4189 9058 4203 9034 4203 9015
TIME...MOT...LOC 0121Z 235DEG 46KT 4199 9025
$$
ERVINThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 7:00 PM CDT | Tornado Warning | DVN | Des Moines | 45 min |
| May 17, 7:14 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Dubuque, Jackson, Jones, Muscatine and 1 more | 61 min |
| May 17, 7:30 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Muscatine, Scott | 45 min |
| May 17, 7:37 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 38 min |
| May 17, 8:05 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 55 min |
| May 17, 8:08 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 67 min |
Nearby
Tornado Warnings in Iowa, 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.