Alert archive / Michigan / Tornado Warnings in 2017
Tornado Warning 4, NWS Detroit, MI
NWS Detroit, MI issued this tornado warning at Oct 7, 2017, 10:49 PM EDT for Lapeer County, Michigan. It was in force for 29 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
- Oct 7, 2017, 10:49 PM EDT (02:49 UTC)
- Expired
- Oct 7, 2017, 11:18 PM EDT
- In force
- 29 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
County Lapeer County, MI
The radar
The Detroit radar (KDTX), 48 km from the middle of the area, began a volume at 02:51 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 |
|---|---|---|---|
| Oct 7, 10:56 PM EDT | TSTM WND DMG | 4 Ene Lapeer, MI | LAPEER COUNTY CENTRAL DISPATCH REPORTED TREE FALLEN ONTO POWER LINES ON CORNELL DR. |
| Oct 7, 11:05 PM EDT | TSTM WND DMG | 2 E Lum, MI | LAPEER COUNTY CENTRAL DISPATCH REPORTED TREE DOWN AT LUM RD AND SUMMERS RD. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 2.8 hours before the alert went out and 45 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
- 43 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1329 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 309 m²/s²
- 0-3 km storm-relative helicity
- 399 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
749
WFUS53 KDTX 080249
TORDTX
MIC087-080330-
/O.NEW.KDTX.TO.W.0004.171008T0249Z-171008T0330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Detroit/Pontiac MI
1049 PM EDT SAT OCT 7 2017
The National Weather Service in Detroit/Pontiac has issued a
* Tornado Warning for...
Central Lapeer County in southeastern Michigan...
* Until 1130 PM EDT
* At 1049 PM EDT, a severe thunderstorm capable of producing a
tornado was located near Hadley, or near Lapeer, 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...
Lum around 1105 PM EDT.
North Branch around 1110 PM EDT.
Brown City around 1120 PM EDT.
Other locations impacted by this tornadic thunderstorm include North
Branch, Lapeer, Lum, Goodland Township, Burnside, Attica, Elba, Kings
Mill, Brown City and Imlay City.
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 4295 8345 4308 8346 4328 8311 4328 8300
4304 8299
TIME...MOT...LOC 0249Z 230DEG 43KT 4301 8339
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
SC3 follow-up statements
183
WWUS53 KDTX 080256
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
1056 PM EDT SAT OCT 7 2017
MIC087-080330-
/O.CON.KDTX.TO.W.0004.000000T0000Z-171008T0330Z/
Lapeer MI-
1056 PM EDT SAT OCT 7 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR CENTRAL
LAPEER COUNTY...
At 1056 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Lapeer, moving northeast at 50 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Lum around 1105 PM EDT.
North Branch around 1110 PM EDT.
Brown City around 1120 PM EDT.
Other locations impacted by this tornadic thunderstorm include North
Branch, Lapeer, Lum, Goodland Township, Burnside, Kings Mill and
Brown City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4300 8333 4312 8339 4328 8311 4328 8300
4307 8299
TIME...MOT...LOC 0256Z 230DEG 43KT 4307 8330
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
SC752
WWUS53 KDTX 080306
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
1106 PM EDT SAT OCT 7 2017
MIC087-080330-
/O.CON.KDTX.TO.W.0004.000000T0000Z-171008T0330Z/
Lapeer MI-
1106 PM EDT SAT OCT 7 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR
NORTHEASTERN LAPEER COUNTY...
At 1105 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Lum, or near North Branch, 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...
Brown City around 1115 PM EDT.
Other locations impacted by this tornadic thunderstorm include North
Branch, Lum, Goodland Township, Burnside, Kings Mill and Brown City.
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 4305 8316 4318 8329 4328 8311 4328 8300
4308 8299
TIME...MOT...LOC 0305Z 229DEG 45KT 4315 8317
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
SC571
WWUS53 KDTX 080318
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
1118 PM EDT SAT OCT 7 2017
MIC087-080327-
/O.CAN.KDTX.TO.W.0004.000000T0000Z-171008T0330Z/
Lapeer MI-
1118 PM EDT SAT OCT 7 2017
...THE TORNADO WARNING FOR NORTHEASTERN LAPEER COUNTY IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled. However gusty winds are still possible with this
thunderstorm.
LAT...LON 4305 8316 4318 8329 4328 8311 4328 8300
4308 8299
TIME...MOT...LOC 0316Z 230DEG 43KT 4325 8301
$$
SCThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 7, 8:31 PM EDT | Special Weather Statement | DTX | Midland, Saginaw | 74 min |
| Oct 7, 8:55 PM EDT | Special Weather Statement | DTX | Lenawee, Livingston | 80 min |
| Oct 7, 9:13 PM EDT | Special Weather Statement | DTX | Bay, Saginaw, Shiawassee | 77 min |
| Oct 7, 9:35 PM EDT | Special Weather Statement | DTX | Shiawassee | 40 min |
| Oct 7, 9:45 PM EDT | Special Weather Statement | DTX | Lenawee | 45 min |
| Oct 7, 9:52 PM EDT | Severe Thunderstorm Warning | DTX | Livingston | 38 min |
| Oct 7, 9:59 PM EDT | Special Weather Statement | DTX | Washtenaw | 46 min |
| Oct 7, 10:01 PM EDT | Tornado Warning | DTX | Livingston | 16 min |
| Oct 7, 10:06 PM EDT | Special Marine Warning | DTX | 84 min | |
| Oct 7, 10:16 PM EDT | Special Weather Statement | DTX | Washtenaw | 44 min |
| Oct 7, 10:16 PM EDT | Severe Thunderstorm Warning | DTX | Genesee, Oakland | 27 min |
| Oct 7, 10:22 PM EDT | Severe Thunderstorm Warning | DTX | Saginaw, Tuscola | 53 min |
| Oct 7, 10:27 PM EDT | Severe Thunderstorm Warning | DTX | Lenawee, Monroe | 27 min |
| Oct 7, 10:44 PM EDT | Special Marine Warning | DTX | 91 min | |
| Oct 7, 10:49 PM EDT | Special Weather Statement | DTX | Macomb, Oakland, Wayne | 56 min |
| Oct 7, 10:49 PM EDT | Severe Thunderstorm Warning | DTX | Huron, Sanilac | 56 min |
| Oct 7, 11:05 PM EDT | Special Marine Warning | DTX | 85 min | |
| Oct 7, 11:16 PM EDT | Special Marine Warning | DTX | 89 min | |
| Oct 8, 4:00 AM EDT | Small Craft Advisory | DTX | 6 hr |
Nearby
Tornado Warnings in Michigan, 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.