Alert archive / Iowa / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 126, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 28, 2017, 7:24 PM CDT for Jo Daviess County, Illinois; Dubuque County, Jackson County, Iowa. 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
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Dubuque County, IA, Jackson County, IA, Jo Daviess County, IL
The radar
The Quad Cities radar (KDVN), 103 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 104 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.
070
WUUS53 KDVN 290024
SVRDVN
ILC085-IAC061-097-290115-
/O.NEW.KDVN.SV.W.0126.170629T0024Z-170629T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm 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
* Severe Thunderstorm Warning for...
Northwestern Jo Daviess County in northwestern Illinois...
Northwestern Jackson County in east central Iowa...
Dubuque County in northeastern Iowa...
* Until 815 PM CDT.
* At 723 PM CDT, a severe thunderstorm was located near Epworth, or
15 miles southwest of Dubuque, moving northeast at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Dubuque, Asbury, Dyersville, Cascade, Epworth, East Dubuque,
Farley, Peosta, New Vienna, Worthington, Holy Cross, Menominee,
Rickardsville, Sherrill, St. Donatus, Centralia, Sageville,
Bernard, Balltown and Bankston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 1000 PM CDT for northwestern
Illinois...and northeastern and east central Iowa.
LAT...LON 4265 9078 4263 9071 4259 9069 4254 9064
4251 9064 4251 9054 4240 9044 4225 9090
4230 9090 4230 9113 4253 9114 4265 9101
4265 9090 4268 9090
TIME...MOT...LOC 0023Z 232DEG 47KT 4238 9095
HAIL...<.75IN
WIND...60MPH
$$
ERVIN1 follow-up statement
122
WWUS53 KDVN 290042
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA
Issued by National Weather Service Des Moines IA
742 PM CDT WED JUN 28 2017
ILC085-IAC061-097-290115-
/O.CON.KDVN.SV.W.0126.000000T0000Z-170629T0115Z/
Jo Daviess IL-Jackson IA-Dubuque IA-
742 PM CDT WED JUN 28 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTHWESTERN JO DAVIESS...NORTHWESTERN JACKSON AND DUBUQUE
COUNTIES...
At 742 PM CDT, a severe thunderstorm was located over East Dubuque,
or near Dubuque, moving northeast at 50 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Dubuque, Asbury, Dyersville, Cascade, Epworth, East Dubuque, Farley,
Peosta, New Vienna, Worthington, Holy Cross, Menominee,
Rickardsville, Sherrill, St. Donatus, Centralia, Sageville, Bernard,
Balltown and Bankston.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
A tornado watch remains in effect until 1000 PM CDT for northwestern
Illinois...and northeastern and east central Iowa.
LAT...LON 4265 9078 4263 9071 4259 9069 4254 9064
4251 9064 4251 9054 4240 9044 4225 9090
4230 9090 4230 9113 4253 9114 4265 9101
4265 9090 4268 9090
TIME...MOT...LOC 0042Z 239DEG 45KT 4247 9066
HAIL...1.00IN
WIND...60MPH
$$
ERVINThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 7:24 PM CDT | Tornado Warning | DVN | Jo Daviess | 51 min |
| Jun 28, 7:36 PM CDT | Severe Thunderstorm Warning | DVN | Jo Daviess, Stephenson | 54 min |
| Jun 28, 8:24 PM CDT | Tornado Warning | DVN | Carroll, Jo Daviess | 51 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 28, 10:03 PM CDT | Severe Thunderstorm Warning | DVN | Hancock, McDonough | 42 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 |
| Jun 28, 7:02 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 43 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, 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 29, 4:54 PM CDT | Special Weather Statement | DVN | Buchanan | 36 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2017Severe Thunderstorm Warnings in Illinois, 2017Every severe thunderstorm warning 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.