Alert archive / Michigan / Tornado Warnings in 2007
Tornado Warning 23, NWS Detroit, MI
NWS Detroit, MI issued this tornado warning at Oct 18, 2007, 11:11 PM EDT for Genesee County, Michigan. It was in force for 49 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
- Oct 18, 2007, 11:11 PM EDT (03:11 UTC)
- Expired
- Oct 19, 2007, 12:00 AM EDT
- In force
- 49 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
County Genesee County, MI
The radar
The Detroit radar (KDTX), 49 km from the middle of the area, began a volume at 03:14 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 18, 11:32 PM EDT | TSTM WND DMG | 4 N Flushing, MI | LARGE TREE LIMBS DOWN...MOUNT MORRIS AND SEYMOUR ROAD. |
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 |
|---|---|---|---|
| Oct 18, 4:23 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 00:00Z, 3.2 hours before the alert went out and 50 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
- 504 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 1038 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 354 m²/s²
- 0-3 km storm-relative helicity
- 339 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS53 KDTX 190311
TORDTX
MIC049-190400-
/O.NEW.KDTX.TO.W.0023.071019T0311Z-071019T0400Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1111 PM EDT THU OCT 18 2007
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN GENESEE COUNTY IN SOUTHEAST MICHIGAN
* UNTIL MIDNIGHT EDT
* AT 1109 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES WEST OF
SWARTZ CREEK...OR ABOUT 9 MILES SOUTHEAST OF OWOSSO...MOVING
NORTHEAST AT 45 MPH.
* THE TORNADO WILL BE NEAR...
7 MILES NORTHWEST OF SWARTZ CREEK BY 1120 PM EDT...
FLUSHING BY 1125 PM EDT...
MONTROSE BY 1130 PM EDT...
MOUNT MORRIS BY 1135 PM EDT...
CLIO AND 9 MILES NORTHWEST OF GENESEE BY 1140 PM EDT...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.
PEOPLE IN THE PROJECTED PATH OF THE TORNADO SHOULD SEEK SHELTER
IMMEDIATELY. MOVE INSIDE A BASEMENT...OR A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR.
LAT...LON 4290 8392 4297 8393 4304 8392 4304 8394
4307 8394 4322 8393 4322 8355 4310 8354
$$
SC / SF5 follow-up statements
000
WWUS53 KDTX 190322
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1121 PM EDT THU OCT 18 2007
MIC049-190400-
/O.CON.KDTX.TO.W.0023.000000T0000Z-071019T0400Z/
GENESEE MI-
1121 PM EDT THU OCT 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT FOR GENESEE
COUNTY...
AT 1057 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A TORNADO
IN SHIAWASSEE COUNTY. THIS TORNADO PRODUCING STORM WAS LOCATED 7 MILES
SOUTHWEST OF FLUSHING AT 1120 PM...OR ABOUT 12 MILES EAST OF
OWOSSO...MOVING NORTHEAST AT 50 MPH.
THE TORNADO WILL BE NEAR...
MONTROSE AND 6 MILES NORTHWEST OF MOUNT MORRIS BY 1130 PM EDT...
CLIO...FLUSHING BY 1135 PM EDT...
THIS STORM HAS PRODUCED TORNADOES AND WILL LIKELY DO SO AGAIN...SO IT IS
ADVISABLE TO MOVE TO SHELTER NOW...BEFORE LIFE THREATENING WEATHER
REACHES YOUR AREA.
LAT...LON 4290 8392 4297 8393 4304 8392 4304 8394
4307 8394 4322 8393 4322 8355 4310 8354
$$
SC SF000
WWUS53 KDTX 190329
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1128 PM EDT THU OCT 18 2007
MIC049-190400-
/O.CON.KDTX.TO.W.0023.000000T0000Z-071019T0400Z/
GENESEE MI-
1128 PM EDT THU OCT 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT FOR GENESEE
COUNTY...
AT 1125 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A TORNADO.
THIS TORNADO WAS LOCATED NEAR FLUSHING...OR ABOUT 10 MILES NORTHWEST
OF FLINT...MOVING NORTHEAST AT 50 MPH.
THE TORNADO WILL BE NEAR...
CLIO BY 1135 PM EDT...
THIS TORNADO HAS THE POTENTIAL TO DO MAJOR DAMAGE IN ITS PATH.
TAKE COVER IMMEDIATELY
LAT...LON 4290 8392 4297 8393 4304 8392 4304 8394
4307 8394 4322 8393 4322 8355 4310 8354
$$000
WWUS53 KDTX 190336
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1135 PM EDT THU OCT 18 2007
MIC049-190400-
/O.CON.KDTX.TO.W.0023.000000T0000Z-071019T0400Z/
GENESEE MI-
1135 PM EDT THU OCT 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT FOR GENESEE
COUNTY...
AT 1134 PM EDT...LOCAL LAW ENFORCEMENT OFFICALS REPORTED A TORNADO.
THIS TORNADO WAS LOCATED JUST SOUTH OF MONTROSE...OR JUST NORTH OF
FLUSHING...MOVING NORTHEAST AT 40 MPH.
THE TORNADO WILL BE NEAR...
CLIO BY 1140 PM EDT...
SEEK SHELTER IN THE INNERMOST PORTION OF THE BUILDING...ON THE LOWEST
FLOOR. GET TO A BASEMENT IF ONE IS AVAILABLE...AND AVOID WINDOWS.
PROTECT YOUR BODY FROM FLYING DEBRIS WITH CUSHIONS OR PILLOWS.
AGAIN...THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING
SITUATION. IF YOU ARE IN THE PATH OF THIS DESTRUCTIVE TORNADO...TAKE
COVER IMMEDIATELY.
LAT...LON 4290 8392 4297 8393 4304 8392 4304 8394
4322 8393 4323 8387 4322 8371 4322 8370
4322 8356 4310 8354
$$
SC SF000
WWUS53 KDTX 190352
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1151 PM EDT THU OCT 18 2007
MIC049-190400-
/O.CON.KDTX.TO.W.0023.000000T0000Z-071019T0400Z/
GENESEE MI-
1151 PM EDT THU OCT 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT FOR GENESEE
COUNTY...
AT 1146 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR CLIO...OR ABOUT 11 MILES NORTH OF FLINT...MOVING
NORTHEAST AT 40 MPH.
THE STORM WILL BE NEAR 5 MILES EAST OF CLIO BY 1155 PM EDT.
THIS STORM HAS PRODUCED TORNADOES AND MAY DO SO AGAIN...SO IT IS
ADVISABLE TO MOVE TO SHELTER NOW...BEFORE LIFE THREATENING WEATHER
REACHES YOUR AREA.
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FRIDAY MORNING
FOR SOUTHEAST MICHIGAN.
LAT...LON 4312 8380 4322 8382 4322 8371 4322 8370
4322 8359 4321 8359
$$
MANN000
WWUS53 KDTX 190359
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
1159 PM EDT THU OCT 18 2007
MIC049-190407-
/O.EXP.KDTX.TO.W.0023.000000T0000Z-071019T0400Z/
GENESEE MI-
1159 PM EDT THU OCT 18 2007
...THE TORNADO WARNING FOR GENESEE COUNTY HAS EXPIRED...
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM
THAT PROMPTED THE WARNING HAD EXITED THE COUNTY.
ADDITIONAL THUNDERSTORMS WILL AFFECT THE AREA AFTER 1 AM EDT.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM EDT FRIDAY MORNING FOR
SOUTHEAST MICHIGAN.
LAT...LON 4312 8380 4322 8382 4322 8371 4322 8370
4322 8359 4321 8359
$$
MANNThe office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 18, 8:00 PM EDT | Special Marine Warning | DTX | 2 hr | |
| Oct 18, 8:02 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 29 min |
| Oct 18, 8:18 PM EDT | Severe Thunderstorm Warning | DTX | Saginaw | 72 min |
| Oct 18, 8:35 PM EDT | Tornado Warning | DTX | Saginaw | 55 min |
| Oct 18, 9:18 PM EDT | Severe Thunderstorm Warning | DTX | Bay | 23 min |
| Oct 18, 9:26 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 49 min |
| Oct 18, 10:33 PM EDT | Tornado Warning | DTX | Shiawassee | 57 min |
| Oct 18, 11:30 PM EDT | Tornado Warning | DTX | Saginaw, Tuscola | 75 min |
| Oct 19, 12:02 AM EDT | Severe Thunderstorm Warning | DTX | Livingston, Shiawassee | 58 min |
| Oct 19, 12:32 AM EDT | Severe Thunderstorm Warning | DTX | Genesee | 73 min |
| Oct 19, 1:00 AM EDT | Severe Thunderstorm Warning | DTX | Lapeer, Tuscola | 65 min |
| Oct 19, 1:15 AM EDT | Tornado Warning | DTX | Tuscola | 38 min |
| Oct 19, 1:49 AM EDT | Special Marine Warning | DTX | 58 min | |
| Oct 19, 10:42 AM EDT | Low Water Advisory | DTX | 20 hr |
Nearby
Tornado Warnings in Michigan, 2007Every tornado warning in 2007Tornadoes in 2007
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.