Alert archive / Michigan / Tornado Warnings in 2007

Tornado Warning 9, NWS Detroit, MI

August 23, 2007Tuscola County, Michigan

NWS Detroit, MI issued this tornado warning at Aug 23, 2007, 5:50 PM EDT for Tuscola 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
Aug 23, 2007, 5:50 PM EDT (21:50 UTC)
Expired
Aug 23, 2007, 6:45 PM EDT
In force
55 min
Issued by
NWS Detroit, MI
Area
Counties, with a storm outline in the text

County Tuscola County, MI

The radar

The Detroit radar (KDTX), 101 km from the middle of the area, began a volume at 21:51 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

TimeReportWhereRemark
Aug 23, 6:07 PM EDTHAIL 0.75Unionville, MI
Aug 23, 6:50 PM EDTHAIL 0.88Cass City, MI

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.

IssuedProductOfficeLasted
Aug 23, 4:09 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 9.8 hours before the alert went out and 99 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-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2007-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2007-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1330 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KDTX 232150
TORDTX
MIC157-232245-
/O.NEW.KDTX.TO.W.0009.070823T2150Z-070823T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
550 PM EDT THU AUG 23 2007

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* TORNADO WARNING FOR...
  TUSCOLA COUNTY IN SOUTHEAST MICHIGAN

* UNTIL 645 PM EDT

* AT 547 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES WEST OF
  QUANICASSEE...OR ABOUT NEAR BAY CITY...MOVING EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  QUANICASSEE BY 605 PM EDT...
  WISNER BY 615 PM EDT...
  FAIRGROVE BY 620 PM EDT...
  AKRON BY 625 PM EDT...
  UNIONVILLE BY 630 PM EDT...
  COLLING BY 635 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.

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.

LAT...LON 4357 8371 4350 8372 4351 8310 4368 8311
      4367 8345 4377 8348 4361 8370

$$

SHULER / SC
3 follow-up statements
000 
WWUS53 KDTX 232206
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
607 PM EDT THU AUG 23 2007

MIC157-232245-
/O.CON.KDTX.TO.W.0009.000000T0000Z-070823T2245Z/
TUSCOLA MI-
607 PM EDT THU AUG 23 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR TUSCOLA
COUNTY...

AT 604 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS TORNADO WAS
LOCATED NEAR GILFORD...OR ABOUT 11 MILES WEST OF CARO...MOVING EAST
AT 35 MPH.

THE TORNADO WILL BE NEAR...
  9 MILES SOUTH OF UNIONVILLE BY 615 PM EDT...
  CARO AND COLLING BY 620 PM EDT...
  ELLINGTON BY 625 PM EDT...
  9 MILES SOUTH OF GAGETOWN BY 630 PM EDT...
  DEFORD AND WILMOT BY 635 PM EDT...
  CASS CITY BY 640 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 4356 8370 4346 8366 4344 8311 4368 8311
      4367 8345 4367 8350 4358 8367

$$

SC
000 
WWUS53 KDTX 232217
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
617 PM EDT THU AUG 23 2007

MIC157-232245-
/O.CON.KDTX.TO.W.0009.000000T0000Z-070823T2245Z/
TUSCOLA MI-
617 PM EDT THU AUG 23 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR TUSCOLA
COUNTY...

AT 612 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS TORNADO WAS
LOCATED NEAR FAIRGROVE...OR ABOUT NEAR CARO...MOVING EAST AT 35 MPH.

THE TORNADO WILL BE NEAR...
  ELLINGTON BY 625 PM EDT...
  DEFORD...WILMOT AND 6 MILES SOUTH OF CASS CITY BY 640 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 4356 8370 4346 8366 4344 8311 4368 8311
      4367 8345 4367 8350 4358 8367

$$

SC
000 
WWUS53 KDTX 232231
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
631 PM EDT THU AUG 23 2007

MIC157-232245-
/O.CON.KDTX.TO.W.0009.000000T0000Z-070823T2245Z/
TUSCOLA MI-
631 PM EDT THU AUG 23 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR TUSCOLA
COUNTY...

AT 629 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS TORNADO WAS
LOCATED NEAR ELLINGTON...OR ABOUT NEAR CARO...MOVING EAST AT 30 MPH.

THE TORNADO WILL BE NEAR...
  8 MILES SOUTH OF GAGETOWN BY 635 PM EDT...
  DEFORD...CASS CITY AND 6 MILES NORTH OF WILMOT BY 640 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 4356 8370 4346 8366 4344 8311 4368 8311
      4367 8345 4367 8350 4358 8367

$$

SC

The office that day

Everything else NWS Detroit, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 22, 9:47 PM EDTSevere Thunderstorm WarningDTXShiawassee58 min
Aug 22, 10:10 PM EDTSevere Thunderstorm WarningDTXSaginaw85 min
Aug 22, 10:12 PM EDTSevere Thunderstorm WarningDTXGenesee63 min
Aug 22, 10:31 PM EDTSevere Thunderstorm WarningDTXShiawassee44 min
Aug 22, 10:55 PM EDTSpecial Marine WarningDTX65 min
Aug 22, 11:14 PM EDTSevere Thunderstorm WarningDTXGenesee31 min
Aug 22, 11:19 PM EDTSevere Thunderstorm WarningDTXBay40 min
Aug 22, 11:31 PM EDTSevere Thunderstorm WarningDTXLapeer33 min
Aug 22, 11:38 PM EDTSpecial Marine WarningDTX67 min
Aug 22, 11:48 PM EDTSpecial Marine WarningDTX57 min
Aug 22, 11:51 PM EDTSevere Thunderstorm WarningDTXSanilac54 min
Aug 23, 12:00 AM EDTSpecial Marine WarningDTX15 min
Aug 23, 12:11 AM EDTSevere Thunderstorm WarningDTXSaint Clair31 min
Aug 23, 12:18 AM EDTSpecial Marine WarningDTX56 min
Aug 23, 4:14 AM EDTSevere Thunderstorm WarningDTXWashtenaw46 min
Aug 23, 5:53 AM EDTSpecial Marine WarningDTX39 min
Aug 23, 4:08 PM EDTSevere Thunderstorm WarningDTXMidland67 min
Aug 23, 4:46 PM EDTSpecial Marine WarningDTX79 min
Aug 23, 5:24 PM EDTSevere Thunderstorm WarningDTXBay, Saginaw40 min
Aug 23, 5:29 PM EDTTornado WarningDTXBay34 min
Aug 23, 6:40 PM EDTTornado WarningDTXSanilac64 min
Aug 23, 6:43 PM EDTTornado WarningDTXTuscola14 min
Aug 23, 6:48 PM EDTSpecial Marine WarningDTX87 min
Aug 23, 7:10 PM EDTSevere Thunderstorm WarningDTXLivingston, Shiawassee, Washtenaw65 min
Aug 23, 7:20 PM EDTSevere Thunderstorm WarningDTXLenawee55 min
Aug 23, 7:36 PM EDTSevere Thunderstorm WarningDTXGenesee, Oakland, Wayne54 min
Aug 23, 7:38 PM EDTSpecial Marine WarningDTX2 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.