Alert archive / Iowa / Tornado Warnings in 2017

Tornado Warning 12, NWS Quad Cities, IA

March 6, 2017Rock Island County, Illinois; Muscatine County, Scott County, Iowa

NWS Quad Cities, IA issued this tornado warning at Mar 6, 2017, 10:10 PM CST for Rock Island County, Illinois; Muscatine County, Scott County, Iowa. It was in force for 24 min. 4 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, 10:10 PM CST (04:10 UTC)
Expired: Mar 6, 2017, 10:34 PM CST
In force: 24 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Muscatine County, IA, Scott County, IA, Rock Island County, IL

The radar

The Quad Cities radar (KDVN), 25 km from the middle of the area, began a volume at 04:12 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, 10:10 PM CST	TSTM WND DMG	1 Ene Muscatine, IA	DAMAGE TO CAR PORT.
Mar 6, 10:10 PM CST	TSTM WND DMG	Muscatine, IA	TREE DAMAGE AND POWER LINES DOWN. TREE ON ROOF...NEAR VICINITY OF SHILLER AND TAYLOR STREETS...POSSIBLE TORNADO.
Mar 6, 10:12 PM CST	TSTM WND GST 68	Muscatine, IA
Mar 6, 10:13 PM CST	TORNADO	2 Ne Fairport, IA	1013 PM TO 1036 PM. EF2. EST PEAK WIND 120 MPH. PATH LENGTH 25.3 MILES. MAX WIDTH 1000 YARDS. END LOCATION 2.9 E LONG GROVE OR 41.6932 N -90.4995 W. A TORNADO BEGAN IN MUSCATINE COUNTY AND THEN TRACKED ACROSS SCOTT COUNTY. POWER POLES WERE SNAPPED. A HOUSE LOS

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, 4.2 hours before the alert went out and 31 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted.

381 
WFUS53 KDVN 070410
TORDVN
ILC161-IAC139-163-070500-
/O.NEW.KDVN.TO.W.0012.170307T0410Z-170307T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
1010 PM CST MON MAR 6 2017

The National Weather Service in the Quad Cities has issued a

* Tornado Warning for...
  Southwestern Rock Island County in northwestern Illinois...
  Southwestern Scott County in east central Iowa...
  Southeastern Muscatine County in east central Iowa...

* Until 1100 PM CST
    
* At 1010 PM CST, a severe thunderstorm capable of producing a
  tornado was located over Muscatine, moving northeast at 45 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...
  Fairport around 1020 PM CST. 
  Andalusia and Montpelier around 1030 PM CST. 
  Blue Grass around 1035 PM CST. 
  Buffalo around 1040 PM CST. 
  Davenport around 1050 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Wildcat Den State Park, Clark's Ferry Recreation Area, Shady Creek
Campground, Midway Beach, Buffalo Shores, West Lake Park, New Era,
Loud Thunder Forest Preserve, Pleasant Prairie and Fairport
Recreation Area.

This includes Interstate 280 between mile markers 4 and 8.
 
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 4157 9081 4158 9069 4146 9063 4144 9070
      4138 9107 4144 9109
TIME...MOT...LOC 0410Z 237DEG 37KT 4141 9105 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MCCLURE

4 follow-up statements

466 
WWUS53 KDVN 070416
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1016 PM CST MON MAR 6 2017

ILC161-IAC139-163-070500-
/O.CON.KDVN.TO.W.0012.000000T0000Z-170307T0500Z/
Rock Island IL-Scott IA-Muscatine IA-
1016 PM CST MON MAR 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CST FOR
SOUTHWESTERN ROCK ISLAND...SOUTHWESTERN SCOTT AND SOUTHEASTERN
MUSCATINE COUNTIES...
    
At 1016 PM CST, a severe thunderstorm capable of producing a tornado
was located near Montpelier, or 7 miles south of Durant, moving
northeast at 65 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...
  Blue Grass and Andalusia around 1020 PM CST. 
  Buffalo around 1025 PM CST. 
  Davenport around 1035 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Wildcat Den State Park, Clark's Ferry Recreation Area, Shady Creek
Campground, Midway Beach, Buffalo Shores, West Lake Park, New Era,
Loud Thunder Forest Preserve, Pleasant Prairie and Fairport
Recreation Area.

This includes Interstate 280 between mile markers 4 and 8.
 
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 4157 9081 4158 9069 4146 9063 4144 9070
      4138 9107 4144 9109
TIME...MOT...LOC 0416Z 241DEG 57KT 4150 9088 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MCCLURE

054 
WWUS53 KDVN 070420
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1020 PM CST MON MAR 6 2017

ILC161-IAC139-163-070500-
/O.CON.KDVN.TO.W.0012.000000T0000Z-170307T0500Z/
Rock Island IL-Scott IA-Muscatine IA-
1020 PM CST MON MAR 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CST FOR
SOUTHWESTERN ROCK ISLAND...SOUTHWESTERN SCOTT AND EAST CENTRAL
MUSCATINE COUNTIES...
    
At 1020 PM CST, a severe thunderstorm capable of producing a tornado
was located over Blue Grass, or 8 miles southeast of Durant, moving
northeast at 65 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...
  Davenport around 1035 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Wildcat Den State Park, Clark's Ferry Recreation Area, Shady Creek
Campground, Midway Beach, Buffalo Shores, West Lake Park, New Era,
Loud Thunder Forest Preserve, Pleasant Prairie and Sweetland Center.

This includes Interstate 280 between mile markers 4 and 8.
 
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 4157 9081 4158 9069 4146 9063 4144 9070
      4140 9093 4148 9101
TIME...MOT...LOC 0420Z 242DEG 55KT 4150 9080 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MCCLURE

464 
WWUS53 KDVN 070421
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1021 PM CST MON MAR 6 2017

ILC161-IAC139-163-070500-
/O.CON.KDVN.TO.W.0012.000000T0000Z-170307T0500Z/
Rock Island IL-Scott IA-Muscatine IA-
1021 PM CST MON MAR 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CST FOR
SOUTHWESTERN ROCK ISLAND...SOUTHWESTERN SCOTT AND EAST CENTRAL
MUSCATINE COUNTIES...
        
At 1020 PM CST, a confirmed tornado was located over Blue Grass, or 8
miles southeast of Durant, moving northeast at 65 mph.

HAZARD...Damaging tornado. 

SOURCE...Radar confirmed tornado. 

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...
  Davenport around 1035 PM CST. 

Other locations impacted by this tornadic thunderstorm include
Wildcat Den State Park, Clark's Ferry Recreation Area, Shady Creek
Campground, Midway Beach, Buffalo Shores, West Lake Park, New Era,
Loud Thunder Forest Preserve, Pleasant Prairie and Sweetland Center.

This includes Interstate 280 between mile markers 4 and 8.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 4157 9081 4158 9069 4146 9063 4144 9070
      4140 9093 4148 9101
TIME...MOT...LOC 0420Z 242DEG 55KT 4151 9079 

TORNADO...OBSERVED
HAIL...<.75IN

$$

MCCLURE

249 
WWUS53 KDVN 070434
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA
Issued by National Weather Service Des Moines IA
1034 PM CST MON MAR 6 2017

IAC031-163-070444-
/O.CAN.KDVN.TO.W.0013.000000T0000Z-170307T0500Z/
Cedar IA-Scott IA-
1034 PM CST MON MAR 6 2017

...THE TORNADO WARNING FOR EAST CENTRAL CEDAR AND NORTHWESTERN SCOTT
COUNTIES 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 east central
Iowa.

LAT...LON 4189 9081 4203 9063 4190 9037 4175 9074
TIME...MOT...LOC 0434Z 225DEG 59KT 4190 9074 

$$

IAC045-070500-
/O.CON.KDVN.TO.W.0013.000000T0000Z-170307T0500Z/
Clinton IA-
1034 PM CST MON MAR 6 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CST FOR WESTERN
CLINTON COUNTY...
        
At 1034 PM CST, a confirmed tornado was located near Calamus, or 12
miles south of Maquoketa, moving northeast at 70 mph.

HAZARD...Damaging tornado and quarter size hail. 

SOURCE...Radar confirmed tornado. 

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...
  Delmar around 1045 PM CST. 

Other locations impacted by this tornadic thunderstorm include Lyons.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 4189 9081 4203 9063 4190 9037 4175 9074
TIME...MOT...LOC 0434Z 225DEG 59KT 4190 9074 

TORNADO...OBSERVED
HAIL...1.00IN

$$

Kotenberg

The 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, 10:13 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, 10:44 PM CST	Tornado Warning	DVN	Hancock, Henderson, McDonough, Warren	31 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
Mar 6, 8:02 PM CST	Severe Thunderstorm Warning	DVN	Benton, Buchanan, Iowa	58 min
Mar 6, 8:04 PM CST	Severe Thunderstorm Warning	DVN	Keokuk	56 min
Mar 6, 8:29 PM CST	Severe Thunderstorm Warning	DVN	Delaware, Johnson, Linn	61 min
Mar 6, 8:40 PM CST	Tornado Warning	DVN	Buchanan, Delaware	38 min
Mar 6, 8:46 PM CST	Severe Thunderstorm Warning	DVN	Keokuk, Washington	74 min
Mar 6, 8:46 PM CST	Tornado Warning	DVN	Benton, Iowa, Johnson, Linn	22 min
Mar 6, 8:54 PM CST	Severe Thunderstorm Warning	DVN	Jefferson, Van Buren	81 min
Mar 6, 9:05 PM CST	Severe Thunderstorm Warning	DVN	Cedar, Jones	55 min
Mar 6, 9:07 PM CST	Tornado Warning	DVN	Jones, Linn	26 min
Mar 6, 9:19 PM CST	Severe Thunderstorm Warning	DVN	Dubuque	56 min
Mar 6, 9:28 PM CST	Severe Thunderstorm Warning	DVN	Johnson	47 min
Mar 6, 9:31 PM CST	Severe Thunderstorm Warning	DVN	Des Moines, Henry, Lee, Louisa, Muscatine	74 min
Mar 6, 9:31 PM CST	Tornado Warning	DVN	Dubuque, Jackson, Jones	44 min
Mar 6, 9:42 PM CST	Severe Thunderstorm Warning	DVN	Jackson	63 min
Mar 6, 9:49 PM CST	Severe Thunderstorm Warning	DVN	Clinton	71 min
Mar 6, 9:55 PM CST	Tornado Warning	DVN	Jackson	38 min
Mar 6, 10:04 PM CST	Severe Thunderstorm Warning	DVN	Cedar	44 min
Mar 6, 10:17 PM CST	Tornado Warning	DVN	Cedar, Clinton, Scott	31 min
Mar 6, 10:23 PM CST	Tornado Warning	DVN	Clinton, Scott	26 min

Nearby

Tornado Warnings in Iowa, 2017 Tornado Warnings in Illinois, 2017 Every tornado warning in 2017 Tornadoes 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.