Alert archive / Michigan / Tornado Warnings in 2007

Tornado Warning 4, NWS Detroit, MI

July 9, 2007Tuscola County, Michigan

NWS Detroit, MI issued this tornado warning at Jul 9, 2007, 3:34 PM EDT for Tuscola County, Michigan. It was in force for 56 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
Jul 9, 2007, 3:34 PM EDT (19:34 UTC)
Expired
Jul 9, 2007, 4:30 PM EDT
In force
56 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), 98 km from the middle of the area, began a volume at 19:34 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
Jul 9, 4:13 PM EDTTSTM WND DMGCass City, MIA 6 INCH DIAMETER TREE BRANCH WAS BLOWN DOWN IN CASS CITY.
Jul 9, 4:13 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
Jul 9, 2:36 PM EDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.6 hours before the alert went out and 95 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 2007-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 677 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2007-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.193958Sfc1 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
677 J/kg
Mixed-layer CIN
-151 J/kg
Mixed-layer LCL
1377 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KDTX 091934
TORDTX
MIC157-092030-
/O.NEW.KDTX.TO.W.0004.070709T1934Z-070709T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
334 PM EDT MON JUL 9 2007

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

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

* UNTIL 430 PM EDT

* AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  ELLINGTON...OR ABOUT 6 MILES EAST OF CARO...MOVING EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  DEFORD AND WILMOT BY 340 PM EDT...
  CASS CITY BY 345 PM EDT...

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME OR
BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID
WINDOWS.

LAT...LON 4367 8353 4344 8352 4342 8311 4368 8312

$$

WAG / MANN
3 follow-up statements
000 
WWUS53 KDTX 091948
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
347 PM EDT MON JUL 9 2007

MIC157-092030-
/O.CON.KDTX.TO.W.0004.000000T0000Z-070709T2030Z/
TUSCOLA MI-
347 PM EDT MON JUL 9 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR TUSCOLA
COUNTY...

AT 343 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO...LOCATED NEAR 
DEFORD...OR ABOUT 10 MILES EAST OF CARO...MOVING EAST AT 20 MPH.

THE TORNADO WILL BE NEAR...
  5 MILES SOUTH OF CASS CITY AT 400 PM EDT

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 1 
INCH DIAMETER HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

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 4367 8353 4344 8352 4342 8311 4368 8312

$$

WAG MANN
000 
WWUS53 KDTX 092003
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
403 PM EDT MON JUL 9 2007

MIC157-092030-
/O.CON.KDTX.TO.W.0004.000000T0000Z-070709T2030Z/
TUSCOLA MI-
403 PM EDT MON JUL 9 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR TUSCOLA
COUNTY...

AT 400 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO...LOCATED NEAR 
ELLINGTON...OR ABOUT 8 MILES NORTHEAST OF CARO...MOVING EAST AT 20 
MPH.

THE TORNADO WILL BE NEAR...
  DEFORD AND 7 MILES NORTH OF WILMOT BY 410 PM EDT...
  CASS CITY BY 415 PM EDT...

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME OR
BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID
WINDOWS.

LAT...LON 4367 8353 4344 8352 4342 8311 4368 8312

$$

MANN
000 
WWUS53 KDTX 092023
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
423 PM EDT MON JUL 9 2007

MIC157-092033-
/O.EXP.KDTX.TO.W.0004.000000T0000Z-070709T2030Z/
TUSCOLA MI-
423 PM EDT MON JUL 9 2007

...THE TORNADO WARNING FOR TUSCOLA COUNTY HAS EXPIRED...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM
THAT PROMPTED THE WARNING HAD EXITED THE COUNTY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT MONDAY
EVENING FOR SOUTHEAST MICHIGAN.

LAT...LON 4367 8353 4344 8352 4342 8311 4368 8312

$$

MANN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 3:50 AM EDTHeat AdvisoryDTXLenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw and 1 more12 hr
Jul 9, 2:35 PM EDTSevere Thunderstorm WarningDTXBay, Midland, Saginaw51 min
Jul 9, 2:38 PM EDTSpecial Marine WarningDTX65 min
Jul 9, 3:04 PM EDTSevere Thunderstorm WarningDTXTuscola71 min
Jul 9, 3:39 PM EDTTornado WarningDTXSanilac81 min
Jul 9, 3:51 PM EDTSevere Thunderstorm WarningDTXBay25 min
Jul 9, 4:00 PM EDTSpecial Marine WarningDTX60 min
Jul 9, 4:12 PM EDTSpecial Marine WarningDTX93 min
Jul 9, 4:25 PM EDTSevere Thunderstorm WarningDTXSaginaw48 min
Jul 9, 4:53 PM EDTSpecial Marine WarningDTX97 min

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.