Alert archive / Illinois / Tornado Warnings in 2017
Tornado Warning 46, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jul 10, 2017, 8:17 PM CDT for McDonough County, Illinois. It was in force for 28 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
- Jul 10, 2017, 8:17 PM CDT (01:17 UTC)
- Expired
- Jul 10, 2017, 8:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County McDonough County, IL
The radar
The Lincoln radar (KILX), 106 km from the middle of the area, began a volume at 01:16 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 10, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.3 hours before the alert went out and 122 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
- 2871 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1254 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted.
712
WFUS53 KDVN 110117
TORDVN
ILC109-110145-
/O.NEW.KDVN.TO.W.0046.170711T0117Z-170711T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
817 PM CDT MON JUL 10 2017
The National Weather Service in the Quad Cities has issued a
* Tornado Warning for...
East central McDonough County in west central Illinois...
* Until 845 PM CDT
* At 816 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Bushnell, or 10 miles east of Macomb, moving east
at 10 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...
New Philadelphia around 830 PM CDT.
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 4052 9052 4056 9051 4057 9045 4046 9045
TIME...MOT...LOC 0116Z 290DEG 9KT 4053 9049
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Gibbs1 follow-up statement
475
WWUS53 KDVN 110123
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
823 PM CDT MON JUL 10 2017
ILC109-110145-
/O.CON.KDVN.TO.W.0046.000000T0000Z-170711T0145Z/
McDonough IL-
823 PM CDT MON JUL 10 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR EAST
CENTRAL MCDONOUGH COUNTY...
At 823 PM CDT, a severe thunderstorm capable of producing a tornado
was located over New Philadelphia, or 12 miles east of Macomb, moving
southeast at 15 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
east central McDonough County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 4052 9052 4056 9051 4057 9045 4046 9045
TIME...MOT...LOC 0123Z 298DEG 14KT 4051 9045
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
GibbsThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:41 PM CDT | Special Weather Statement | DVN | Bureau, Putnam | 64 min |
| Jul 10, 7:41 PM CDT | Tornado Warning | DVN | Hancock | 34 min |
| Jul 10, 7:53 PM CDT | Special Weather Statement | DVN | McDonough | 67 min |
| Jul 10, 8:10 PM CDT | Severe Thunderstorm Warning | DVN | McDonough | 50 min |
| Jul 10, 8:17 PM CDT | Special Weather Statement | DVN | Hancock | 58 min |
| Jul 10, 8:19 PM CDT | Flash Flood Warning | DVN | McDonough, Warren | 6 hr |
| Jul 10, 8:41 PM CDT | Flash Flood Warning | DVN | Hancock | 6 hr |
| Jul 10, 9:03 PM CDT | Special Weather Statement | DVN | McDonough | 57 min |
| Jul 10, 9:13 PM CDT | Special Weather Statement | DVN | Hancock | 62 min |
| Jul 11, 6:26 AM CDT | Special Weather Statement | DVN | Hancock, Henderson, Mercer | 49 min |
| Jul 11, 7:10 AM CDT | Special Weather Statement | DVN | Hancock, Henderson, McDonough, Mercer, Warren | 50 min |
| Jul 11, 7:24 AM CDT | Special Weather Statement | DVN | Hancock | 66 min |
| Jul 11, 8:15 AM CDT | Special Weather Statement | DVN | Putnam | 45 min |
| Jul 11, 8:29 AM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 31 min |
| Jul 11, 11:25 AM CDT | Heat Advisory | DVN | Hancock, Henderson, McDonough, Mercer, Warren | 9 hr |
Nearby
Tornado 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.