Alert archive / Illinois / Tornado Warnings in 2017
Tornado Warning 15, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Mar 6, 2017, 10:44 PM CST for 4 counties in Illinois. 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
- Mar 6, 2017, 10:44 PM CST (04:44 UTC)
- Expired
- Mar 6, 2017, 11:15 PM CST
- In force
- 31 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Hancock County, IL, Henderson County, IL, McDonough County, IL, Warren County, IL
The radar
The Quad Cities radar (KDVN), 108 km from the middle of the area, began a volume at 04:47 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 |
|---|---|---|---|
| Mar 6, 11:05 PM CST | TSTM WND DMG | Walnut Grove, IL | 3 POLES BLOWN DOWN. LATE REPORT. TIME ESTIMATED. |
| Mar 6, 11:10 PM CST | TSTM WND GST 70 | Nw Prairie City, IL |
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 |
|---|---|---|---|
| Mar 6, 8:52 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.7 hours before the alert went out and 110 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
- 39 J/kg
- Mixed-layer CIN
- -343 J/kg
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 407 m²/s²
- 0-3 km storm-relative helicity
- 489 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
014
WFUS53 KDVN 070444
TORDVN
ILC067-071-109-187-070515-
/O.NEW.KDVN.TO.W.0015.170307T0444Z-170307T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
1044 PM CST MON MAR 6 2017
The National Weather Service in the Quad Cities has issued a
* Tornado Warning for...
Northeastern Hancock County in west central Illinois...
Southeastern Henderson County in west central Illinois...
Southern Warren County in west central Illinois...
Northern McDonough County in west central Illinois...
* Until 1115 PM CST
* At 1044 PM CST, a severe thunderstorm capable of producing a
tornado was located over La Harpe, or 15 miles northeast of
Carthage, moving east at 60 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...
Good Hope, Raritan and Sciota around 1055 PM CST.
Roseville around 1100 PM CST.
Little Swan Lake around 1105 PM CST.
Prairie City around 1110 PM CST.
Other locations impacted by this tornadic thunderstorm include Warren
County Fairgrounds, Walnut Grove, Swan Creek, Youngstown, Prairie
City Airport, Fountain Green, Greenbush, Berwick, Scottsburg and
Spring Lake.
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 4062 9107 4084 9046 4079 9044 4057 9045
4046 9098
TIME...MOT...LOC 0444Z 250DEG 52KT 4057 9094
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
UTTECH3 follow-up statements
051
WWUS53 KDVN 070455
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
1055 PM CST MON MAR 6 2017
ILC067-070503-
/O.CAN.KDVN.TO.W.0015.000000T0000Z-170307T0515Z/
Hancock IL-
1055 PM CST MON MAR 6 2017
...THE TORNADO WARNING FOR NORTHEASTERN HANCOCK COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of Hancock County. Therefore the warning has been cancelled.
A tornado watch remains in effect until 400 AM CST for west central
Illinois.
LAT...LON 4065 9090 4070 9085 4084 9046 4079 9044
4057 9045 4052 9091
TIME...MOT...LOC 0453Z 250DEG 52KT 4062 9077
$$
ILC071-109-187-070515-
/O.CON.KDVN.TO.W.0015.000000T0000Z-170307T0515Z/
Henderson IL-Warren IL-McDonough IL-
1055 PM CST MON MAR 6 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM CST FOR
SOUTHEASTERN HENDERSON...SOUTHERN WARREN AND NORTHERN MCDONOUGH
COUNTIES...
At 1053 PM CST, a severe thunderstorm capable of producing a tornado
was located near Sciota, or 11 miles northwest of Macomb, moving east
at 60 mph.
HAZARD...Tornado.
SOURCE...Trained spotters reported a rotating wall cloud 5 miles WNW
of Macomb.
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...
Roseville around 1100 PM CST.
Little Swan Lake around 1105 PM CST.
Prairie City around 1110 PM CST.
Other locations impacted by this tornadic thunderstorm include Warren
County Fairgrounds, Walnut Grove, Swan Creek, Youngstown, Prairie
City Airport, Greenbush and Berwick.
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 4065 9090 4070 9085 4084 9046 4079 9044
4057 9045 4052 9091
TIME...MOT...LOC 0453Z 250DEG 52KT 4062 9077
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
UTTECH735
WWUS53 KDVN 070503
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
1103 PM CST MON MAR 6 2017
ILC071-070512-
/O.CAN.KDVN.TO.W.0015.000000T0000Z-170307T0515Z/
Henderson IL-
1103 PM CST MON MAR 6 2017
...THE TORNADO WARNING FOR SOUTHEASTERN HENDERSON COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore the warning has been cancelled.
A tornado watch remains in effect until 400 AM CST for west central
Illinois.
LAT...LON 4062 9076 4071 9074 4084 9046 4079 9044
4057 9045 4057 9070
TIME...MOT...LOC 0502Z 262DEG 56KT 4064 9062
$$
ILC109-187-070515-
/O.CON.KDVN.TO.W.0015.000000T0000Z-170307T0515Z/
Warren IL-McDonough IL-
1103 PM CST MON MAR 6 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1115 PM CST FOR SOUTHERN
WARREN AND NORTHEASTERN MCDONOUGH COUNTIES...
At 1102 PM CST, a possible tornado was located near Little Swan
Lake, or 12 miles north of Macomb, moving east at 65 mph.
HAZARD...Tornado.
SOURCE...This storm has a history of producing a rotating wall cloud.
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...
Little Swan Lake around 1105 PM CST.
Prairie City around 1110 PM CST.
Other locations impacted by this tornadic thunderstorm include Warren
County Fairgrounds, Walnut Grove, Swan Creek, Youngstown, Prairie
City Airport, Greenbush and Berwick.
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 4062 9076 4071 9074 4084 9046 4079 9044
4057 9045 4057 9070
TIME...MOT...LOC 0502Z 262DEG 56KT 4064 9062
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
UTTECH572
WWUS53 KDVN 070513
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
1113 PM CST MON MAR 6 2017
ILC109-187-070523-
/O.EXP.KDVN.TO.W.0015.000000T0000Z-170307T0515Z/
Warren IL-McDonough IL-
1113 PM CST MON MAR 6 2017
...THE TORNADO WARNING FOR SOUTHERN WARREN AND NORTHEASTERN MCDONOUGH
COUNTIES WILL EXPIRE AT 1115 PM CST...
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area. However
gusty winds are still possible with this thunderstorm.
A tornado watch remains in effect until 400 AM CST for west central
Illinois.
LAT...LON 4062 9076 4071 9074 4084 9046 4079 9044
4057 9045 4057 9070
TIME...MOT...LOC 0513Z 270DEG 52KT 4068 9046
$$
UTTECHThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 9:52 PM CST | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 83 min |
| Mar 6, 9:56 PM CST | Severe Thunderstorm Warning | DVN | Jo Daviess | 64 min |
| Mar 6, 10:10 PM CST | Tornado Warning | DVN | Rock Island | 24 min |
| Mar 6, 10:13 PM CST | Severe Thunderstorm Warning | DVN | Hancock, Henderson, McDonough, Warren | 77 min |
| Mar 6, 10:26 PM CST | Severe Thunderstorm Warning | DVN | Bureau, Henry, Rock Island, Whiteside | 49 min |
| Mar 6, 10:39 PM CST | Severe Thunderstorm Warning | DVN | Carroll, Stephenson, Whiteside | 67 min |
| Mar 6, 10:46 PM CST | Tornado Warning | DVN | Carroll | 20 min |
| Mar 6, 10:56 PM CST | Tornado Warning | DVN | Carroll, Whiteside | 27 min |
| Mar 6, 10:58 PM CST | Tornado Warning | DVN | Henry, Mercer | 32 min |
| Mar 6, 11:13 PM CST | Severe Thunderstorm Warning | DVN | Bureau, Henry, Putnam, Whiteside | 77 min |
| Mar 7, 12:08 AM CST | Tornado Warning | DVN | Bureau, Putnam | 17 min |
| Mar 7, 3:32 AM CST | Red Flag Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 14 hr |
| Mar 7, 3:37 AM CST | Wind Advisory | DVN | Carroll, Jo Daviess, Stephenson | 12 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.