Alert archive / Michigan / Tornado Warnings in 2007
Tornado Warning 21, NWS Detroit, MI
NWS Detroit, MI issued this tornado warning at Oct 18, 2007, 8:35 PM EDT for Saginaw County, Michigan. It was in force for 55 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 18, 2007, 8:35 PM EDT (00:35 UTC)
- Expired
- Oct 18, 2007, 9:30 PM EDT
- In force
- 55 min
- Issued by
- NWS Detroit, MI
- Area
- Storm-based polygon
County Saginaw County, MI
The radar
The Detroit radar (KDTX), 86 km from the middle of the area, began a volume at 00:35 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, 8:42 PM EDT | TSTM WND DMG | 2 W Brant, MI | CENTRAL DISPATCH RECEIVED A REPORT OF A VERY LARGE TREE DOWN ON THE 18000 BLOCK OF BRANT ROAD. |
| Oct 18, 8:48 PM EDT | TSTM WND DMG | 3 W St. Charles, MI | CENTRAL DISPATCH RECEIVED A REPORT OF A TREE DOWN ON RAUCHOLZ RD. |
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, 0.6 hours before the alert went out and 86 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 190035
TORDTX
MIC145-190130-
/O.NEW.KDTX.TO.W.0021.071019T0035Z-071019T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
835 PM EDT THU OCT 18 2007
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
* TORNADO WARNING FOR...
SAGINAW COUNTY IN SOUTHEAST MICHIGAN
* UNTIL 930 PM EDT
* AT 831 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR FENMORE...
OR ABOUT 13 MILES NORTHWEST OF OWOSSO...MOVING NORTHEAST AT 40 MPH.
* THE TORNADO WILL BE NEAR...
MARION SPRINGS BY 840 PM EDT...
BRANT BY 845 PM EDT...
ST. CHARLES AND NELSON BY 850 PM EDT...
GARFIELD BY 855 PM EDT...
SHIAWASSEE NATIONAL WILDLIFE REFUGE AND SWAN CREEK BY 900 PM EDT...
SHIELDS BY 905 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 4323 8395 4314 8410 4314 8437 4330 8437
4349 8418 4351 8412 4352 8407 4352 8405
4352 8384 4347 8381 4348 8370 4333 8379
4327 8384
$$
SC / SF4 follow-up statements
000
WWUS53 KDTX 190046
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
845 PM EDT THU OCT 18 2007
MIC145-190130-
/O.CON.KDTX.TO.W.0021.000000T0000Z-071019T0130Z/
SAGINAW MI-
845 PM EDT THU OCT 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR SAGINAW
COUNTY...
AT 844 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR BRANT...OR ABOUT 17 MILES NORTH OF OWOSSO...MOVING
NORTHEAST AT 40 MPH.
THE TORNADO WILL BE NEAR...
ST. CHARLES BY 855 PM EDT...
GARFIELD BY 900 PM EDT...
SWAN CREEK...SHIAWASSEE NATIONAL WILDLIFE REFUGE AND SHIELDS BY 905
PM EDT...
CARROLLTON AND SAGINAW BY 915 PM EDT...
ZILWAUKEE BY 920 PM EDT...
PEOPLE IN THE PROJECTED PATH OF THE TORNADO SHOULD SEEK SHELTER
IMMEDIATELY. MOVE INSIDE A BASEMENT...OR A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR.
LAT...LON 4323 8395 4314 8410 4314 8437 4330 8437
4349 8418 4351 8412 4352 8407 4352 8405
4352 8384 4347 8381 4348 8370 4333 8379
4327 8384
$$
SC SF000
WWUS53 KDTX 190101
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
859 PM EDT THU OCT 18 2007
MIC145-190130-
/O.CON.KDTX.TO.W.0021.000000T0000Z-071019T0130Z/
SAGINAW MI-
859 PM EDT THU OCT 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR SAGINAW
COUNTY...
AT 857 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR GARFIELD...OR ABOUT 11 MILES SOUTHWEST OF SAGINAW...
MOVING NORTHEAST AT 40 MPH.
THE TORNADO WILL BE NEAR...
SWAN CREEK...SHIAWASSEE NATIONAL WILDLIFE REFUGE...SHIELDS BY 905
PM EDT...
CARROLLTON...SAGINAW AND 6 MILES NORTHWEST OF BRIDGEPORT BY 915 PM
EDT...
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 4323 8395 4314 8410 4314 8437 4330 8437
4349 8418 4351 8412 4352 8407 4352 8405
4352 8384 4347 8381 4348 8370 4333 8379
4327 8384
$$
SC SF000
WWUS53 KDTX 190112
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
911 PM EDT THU OCT 18 2007
MIC145-190130-
/O.CON.KDTX.TO.W.0021.000000T0000Z-071019T0130Z/
SAGINAW MI-
911 PM EDT THU OCT 18 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR SAGINAW
COUNTY...
AT 910 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR NORTHWEST SAGINAW...MOVING NORTHEAST AT 45 MPH.
THE TORNADO WILL BE NEAR...
7 MILES NORTHWEST OF ARTHUR...CARROLLTON BY 920 PM EDT...
PEOPLE IN THE PROJECTED PATH OF THE TORNADO SHOULD SEEK SHELTER
IMMEDIATELY. MOVE INSIDE A BASEMENT...OR A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR.
LAT...LON 4323 8395 4314 8410 4314 8437 4330 8437
4349 8418 4351 8412 4352 8407 4352 8405
4352 8384 4347 8381 4348 8370 4333 8379
4327 8384
$$
SC SF000
WWUS53 KDTX 190130
SVSDTX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
930 PM EDT THU OCT 18 2007
MIC145-190138-
/O.EXP.KDTX.TO.W.0021.000000T0000Z-071019T0130Z/
SAGINAW MI-
930 PM EDT THU OCT 18 2007
...THE TORNADO WARNING FOR SAGINAW COUNTY HAS EXPIRED...
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM
THAT PROMPTED THE WARNING HAD EXITED THE COUNTY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT FRIDAY MORNING
FOR SOUTHEAST MICHIGAN.
LAT...LON 4323 8395 4314 8410 4314 8437 4330 8437
4349 8418 4351 8412 4352 8407 4352 8405
4352 8384 4347 8381 4348 8370 4333 8379
4327 8384
$$
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, 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, 11:11 PM EDT | Tornado Warning | DTX | Genesee | 49 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.