Alert archive / Michigan / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 21, NWS Detroit, MI

March 15, 2012Tuscola County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Mar 15, 2012, 6:34 PM EDT for Tuscola County, Michigan. It was in force for 56 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: Mar 15, 2012, 6:34 PM EDT (22:34 UTC)
Expired: Mar 15, 2012, 7:30 PM EDT
In force: 56 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Tuscola County, MI

The radar

The Detroit radar (KDTX), 100 km from the middle of the area, began a volume at 22:37 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
Mar 15, 6:45 PM EDT	HAIL 1.5	5 Sse Akron, 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.

Issued	Product	Office	Lasted
Mar 15, 4:28 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 10.6 hours before the alert went out and 98 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2007 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 66 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.

362 
WUUS53 KDTX 152234
SVRDTX
MIC157-152330-
/O.NEW.KDTX.SV.W.0021.120315T2234Z-120315T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
634 PM EDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN TUSCOLA COUNTY IN SOUTHEAST MICHIGAN...

* UNTIL 730 PM EDT

* AT 633 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL
  SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM QUANICASSEE TO AKRON TO 5
  MILES SOUTH OF CARO...AND MOVING EAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  BAY PARK AND CARO AROUND 640 PM EDT.
  UNIONVILLE AROUND 700 PM EDT.
  COLLING AND ELLINGTON AROUND 705 PM EDT.
  WILMOT AROUND 710 PM EDT.
  COLWOOD AND DEFORD AROUND 715 PM EDT.
  CASS CITY AND GAGETOWN AROUND 730 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  UNIONVILLE...         REESE...              QUANICASSEE...
  GAGETOWN...           FAIRGROVE...          CASS CITY...
  CARO...               AKRON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.

&&

LAT...LON 4367 8347 4367 8312 4344 8311 4339 8347
      4338 8370 4360 8370 4360 8367 4373 8352
      4371 8349 4372 8347
TIME...MOT...LOC 2234Z 274DEG 17KT 4365 8364 4354 8347
          4342 8339
WIND...HAIL 60MPH 1.50IN

$$

DRK

3 follow-up statements

410 
WWUS53 KDTX 152259
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
659 PM EDT THU MAR 15 2012

MIC157-152330-
/O.CON.KDTX.SV.W.0021.000000T0000Z-120315T2330Z/
TUSCOLA MI-
659 PM EDT THU MAR 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
TUSCOLA COUNTY UNTIL 730 PM EDT...

AT 657 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM QUANICASSEE TO CARO TO
MAYVILLE...MOVING EAST AT 20 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  CARO AND AKRON AROUND 705 PM EDT.
  UNIONVILLE AROUND 715 PM EDT.
  COLLING AROUND 725 PM EDT.
  ELLINGTON AND WILMOT AROUND 730 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  UNIONVILLE...         REESE...              QUANICASSEE...
  GAGETOWN...           FAIRGROVE...          CASS CITY...
  CARO...               AKRON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4367 8347 4367 8312 4344 8311 4339 8347
      4338 8370 4360 8370 4360 8367 4373 8352
      4371 8349 4372 8347
TIME...MOT...LOC 2300Z 274DEG 17KT 4359 8357 4348 8343
          4339 8339
WIND...HAIL 60MPH 1.50IN

$$

DRK

162 
WWUS53 KDTX 152316
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
716 PM EDT THU MAR 15 2012

MIC157-152330-
/O.CON.KDTX.SV.W.0021.000000T0000Z-120315T2330Z/
TUSCOLA MI-
716 PM EDT THU MAR 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
TUSCOLA COUNTY UNTIL 730 PM EDT...

AT 713 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM AKRON TO KINGSTON...MOVING EAST
AT 20 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  WILMOT AND ELLINGTON AROUND 725 PM EDT.
  DEFORD AND COLWOOD AROUND 730 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  UNIONVILLE...         REESE...              QUANICASSEE...
  GAGETOWN...           FAIRGROVE...          CASS CITY...
  CARO...               AKRON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4367 8347 4367 8312 4344 8311 4339 8347
      4338 8370 4360 8370 4360 8367 4373 8352
      4371 8349 4372 8347
TIME...MOT...LOC 2317Z 274DEG 17KT 4360 8344 4346 8322
WIND...HAIL 60MPH 1.50IN

$$

KURIMSKI

295 
WWUS53 KDTX 152322 RRA
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
722 PM EDT THU MAR 15 2012

MIC157-152330-
/O.CON.KDTX.SV.W.0021.000000T0000Z-120315T2330Z/
TUSCOLA MI-
722 PM EDT THU MAR 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
TUSCOLA COUNTY UNTIL 730 PM EDT...

AT 722 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PING PONG BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM UNIONVILLE TO KINGSTON...MOVING
EAST AT 20 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  COLWOOD AND DEFORD AROUND 730 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  GAGETOWN...           FAIRGROVE...          CASS CITY...
  CARO...               AKRON...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4340 8342 4352 8356 4360 8349 4366 8343
      4367 8312 4344 8311
TIME...MOT...LOC 2323Z 274DEG 17KT 4360 8340 4346 8318
WIND...HAIL 60MPH 1.50IN

$$

MM

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 15, 10:35 AM EDT	Special Marine Warning	DTX		55 min
Mar 15, 10:55 AM EDT	Severe Thunderstorm Warning	DTX	Macomb, Wayne	30 min
Mar 15, 12:56 PM EDT	Special Marine Warning	DTX		94 min
Mar 15, 1:56 PM EDT	Special Marine Warning	DTX		64 min
Mar 15, 3:03 PM EDT	Severe Thunderstorm Warning	DTX	Huron	72 min
Mar 15, 3:06 PM EDT	Special Marine Warning	DTX		105 min
Mar 15, 3:24 PM EDT	Special Marine Warning	DTX		2 hr
Mar 15, 3:28 PM EDT	Special Marine Warning	DTX		92 min
Mar 15, 3:31 PM EDT	Severe Thunderstorm Warning	DTX	Bay	59 min
Mar 15, 4:01 PM EDT	Severe Thunderstorm Warning	DTX	Huron	48 min
Mar 15, 4:09 PM EDT	Severe Thunderstorm Warning	DTX	Livingston	81 min
Mar 15, 4:26 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Saginaw	30 min
Mar 15, 4:28 PM EDT	Severe Thunderstorm Warning	DTX	Bay	77 min
Mar 15, 4:36 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee	84 min
Mar 15, 4:40 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Tuscola	95 min
Mar 15, 4:42 PM EDT	Severe Thunderstorm Warning	DTX	Shiawassee	55 min
Mar 15, 4:53 PM EDT	Special Marine Warning	DTX		97 min
Mar 15, 4:57 PM EDT	Severe Thunderstorm Warning	DTX	Washtenaw	93 min
Mar 15, 5:07 PM EDT	Tornado Warning	DTX	Livingston, Washtenaw	53 min
Mar 15, 5:28 PM EDT	Special Marine Warning	DTX		92 min
Mar 15, 5:28 PM EDT	Tornado Warning	DTX	Washtenaw	62 min
Mar 15, 5:33 PM EDT	Severe Thunderstorm Warning	DTX	Monroe	87 min
Mar 15, 5:37 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer, Tuscola	83 min
Mar 15, 5:45 PM EDT	Tornado Warning	DTX	Monroe	16 min
Mar 15, 6:16 PM EDT	Severe Thunderstorm Warning	DTX	Genesee, Tuscola	29 min
Mar 15, 6:22 PM EDT	Special Marine Warning	DTX		113 min
Mar 15, 6:28 PM EDT	Tornado Warning	DTX	Washtenaw	47 min
Mar 15, 6:33 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee	42 min
Mar 15, 6:44 PM EDT	Tornado Warning	DTX	Lapeer	34 min
Mar 15, 6:45 PM EDT	Severe Thunderstorm Warning	DTX	Oakland	29 min
Mar 15, 6:51 PM EDT	Flash Flood Warning	DTX	Washtenaw	3 hr
Mar 15, 6:57 PM EDT	Special Marine Warning	DTX		93 min
Mar 15, 6:58 PM EDT	Tornado Warning	DTX	Lenawee, Monroe	47 min
Mar 15, 7:03 PM EDT	Severe Thunderstorm Warning	DTX	Wayne	25 min
Mar 15, 7:06 PM EDT	Severe Thunderstorm Warning	DTX	Huron, Sanilac	54 min
Mar 15, 7:12 PM EDT	Special Marine Warning	DTX		2 hr
Mar 15, 7:17 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	73 min
Mar 15, 7:19 PM EDT	Flash Flood Warning	DTX	Genesee, Lapeer, Tuscola	5 hr
Mar 15, 7:26 PM EDT	Severe Thunderstorm Warning	DTX	Bay	16 min
Mar 15, 7:47 PM EDT	Severe Thunderstorm Warning	DTX	Monroe	52 min
Mar 15, 7:52 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	47 min
Mar 15, 7:55 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee	44 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2012 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.