Alert archive / Michigan / Tornado Warnings in 2012

Tornado Warning 2, NWS Detroit, MI

March 12, 2012Tuscola County, Michigan

NWS Detroit, MI issued this tornado warning at Mar 12, 2012, 8:47 PM EDT for Tuscola County, Michigan. It was in force for 16 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 12, 2012, 8:47 PM EDT (00:47 UTC)
Expired
Mar 12, 2012, 9:03 PM EDT
In force
16 min
Issued by
NWS Detroit, MI
Area
Storm-based polygon

County Tuscola County, MI

The radar

The Detroit radar (KDTX), 99 km from the middle of the area, began a volume at 00:49 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 12, 7:36 PM EDTTornado WatchSPC7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 0.8 hours before the alert went out and 96 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 00:00Z on 2012-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 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 00:00Z on 2012-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 434 square meters per square second.1939587897Sfc1 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
6 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
519 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
434 m²/s²
0-3 km storm-relative helicity
589 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.

537 
WFUS53 KDTX 130047
TORDTX
MIC157-130115-
/O.NEW.KDTX.TO.W.0002.120313T0047Z-120313T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
847 PM EDT MON MAR 12 2012

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

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

* UNTIL 915 PM EDT

* AT 845 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR AKRON...AND MOVING EAST AT 55 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  CASS CITY AND GAGETOWN AROUND 900 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  GAGETOWN...           CASS CITY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 4351 8311 4351 8344 4361 8350 4367 8343
      4367 8313
TIME...MOT...LOC 0048Z 251DEG 46KT 4358 8339

$$

MANN
2 follow-up statements
926 
WWUS53 KDTX 130055
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
855 PM EDT MON MAR 12 2012

MIC157-130115-
/O.CON.KDTX.TO.W.0002.000000T0000Z-120313T0115Z/
TUSCOLA MI-
855 PM EDT MON MAR 12 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN TUSCOLA
COUNTY UNTIL 915 PM EDT...

AT 853 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR GAGETOWN...OR 7 MILES WEST OF CASS CITY...
MOVING EAST AT 50 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  GAGETOWN AND CASS CITY AROUND 900 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  GAGETOWN...           CASS CITY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE DIFFICULT TO SEE AND CONFIRM AT NIGHT. TAKE COVER NOW.

&&

LAT...LON 4351 8311 4351 8340 4360 8339 4367 8339
      4367 8313
TIME...MOT...LOC 0055Z 248DEG 42KT 4362 8329

$$

CB/MANN
287 
WWUS53 KDTX 130103
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
903 PM EDT MON MAR 12 2012

MIC157-130113-
/O.CAN.KDTX.TO.W.0002.000000T0000Z-120313T0115Z/
TUSCOLA MI-
903 PM EDT MON MAR 12 2012

...THE TORNADO WARNING FOR NORTHEASTERN TUSCOLA COUNTY IS 
CANCELLED...

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR TUSCOLA 
COUNTY...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM EDT.

LAT...LON 4351 8311 4351 8340 4360 8339 4367 8339
      4367 8313
TIME...MOT...LOC 0103Z 248DEG 42KT 4365 8317

$$

CB

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 8:40 PM EDTSevere Thunderstorm WarningDTXTuscola50 min
Mar 12, 9:01 PM EDTSevere Thunderstorm WarningDTXHuron, Sanilac44 min
Mar 12, 9:40 PM EDTSevere Thunderstorm WarningDTXLenawee36 min

Nearby

Tornado Warnings in Michigan, 2012Every tornado warning in 2012Tornadoes in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.