Alert archive / Michigan / Tornado Warnings in 2010

Tornado Warning 21, NWS Detroit, MI

August 19, 2010Genesee County, Saginaw County, Tuscola County, Michigan

NWS Detroit, MI issued this tornado warning at Aug 19, 2010, 5:46 PM EDT for Genesee County, Saginaw County, Tuscola County, Michigan. It was in force for 59 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 19, 2010, 5:46 PM EDT (21:46 UTC)
Expired: Aug 19, 2010, 6:45 PM EDT
In force: 59 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon

Counties Genesee County, MI, Saginaw County, MI, Tuscola County, MI

The radar

The Detroit radar (KDTX), 61 km from the middle of the area, began a volume at 21:49 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.

What was reported inside it

Time	Report	Where	Remark
Aug 19, 5:55 PM EDT	HAIL 0.5	5 Se Frankenmuth, MI
Aug 19, 5:55 PM EDT	HAIL 0.75	5 Ese Frankenmuth, MI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 9.8 hours before the alert went out and 60 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: 19 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1282 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 118 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

273 
WFUS53 KDTX 192146
TORDTX
MIC049-145-157-192245-
/O.NEW.KDTX.TO.W.0021.100819T2146Z-100819T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
546 PM EDT THU AUG 19 2010

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN GENESEE COUNTY IN SOUTHEAST MICHIGAN...
  EAST CENTRAL SAGINAW COUNTY IN SOUTHEAST MICHIGAN...
  SOUTHWESTERN TUSCOLA COUNTY IN SOUTHEAST MICHIGAN...

* UNTIL 645 PM EDT

* AT 545 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR BIRCH RUN...AND MOVING SOUTHEAST AT 35 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  CLIO AROUND 555 PM EDT.
  THETFORD TOWNSHIP AND MOUNT MORRIS AROUND 605 PM EDT.
  GENESEE AROUND 610 PM EDT.
  OTISVILLE AROUND 615 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  OTISVILLE...          MOUNT MORRIS...       MONTROSE...
  MILLINGTON...         FRANKENMUTH...        FLUSHING...
  CLIO...               BIRCH RUN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4327 8347 4306 8346 4305 8393 4332 8394
      4337 8384
TIME...MOT...LOC 2146Z 307DEG 30KT 4329 8379

$$

4 follow-up statements

082 
WWUS53 KDTX 192158
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
558 PM EDT THU AUG 19 2010

MIC049-145-157-192245-
/O.CON.KDTX.TO.W.0021.000000T0000Z-100819T2245Z/
SAGINAW MI-GENESEE MI-TUSCOLA MI-
558 PM EDT THU AUG 19 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN TUSCOLA...
NORTHERN GENESEE AND EAST CENTRAL SAGINAW COUNTIES UNTIL 645 PM
EDT...

AT 553 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR BIRCH RUN...MOVING SOUTHEAST AT 35 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  THETFORD TOWNSHIP AND MOUNT MORRIS AROUND 605 PM EDT.
  GENESEE AROUND 610 PM EDT.
  OTISVILLE AROUND 615 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  OTISVILLE...          MOUNT MORRIS...       MILLINGTON...
  FRANKENMUTH...        FLUSHING...           CLIO...
  BIRCH RUN...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4328 8385 4334 8375 4327 8347 4306 8346
      4305 8393
TIME...MOT...LOC 2158Z 307DEG 30KT 4323 8368

$$

143 
WWUS53 KDTX 192208
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
608 PM EDT THU AUG 19 2010

MIC049-145-157-192245-
/O.CON.KDTX.TO.W.0021.000000T0000Z-100819T2245Z/
SAGINAW MI-GENESEE MI-TUSCOLA MI-
608 PM EDT THU AUG 19 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR EXTREME SOUTHWESTERN
TUSCOLA...NORTHERN GENESEE AND SOUTHEASTERN SAGINAW COUNTIES UNTIL
645 PM EDT...

AT 605 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 5 MILES NORTHWEST OF OTISVILLE...OR 6 MILES EAST OF
CLIO...MOVING SOUTHEAST AT 35 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  OTISVILLE AROUND 615 PM EDT.

THE WARNING INCLUDES AREAS SURROUNDING THESE LOCATIONS...
  OTISVILLE...          MOUNT MORRIS...       FLUSHING...
  CLIO...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4305 8388 4324 8382 4326 8368 4327 8347
      4306 8346
TIME...MOT...LOC 2208Z 307DEG 30KT 4318 8359

$$

590 
WWUS53 KDTX 192223
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
623 PM EDT THU AUG 19 2010

MIC145-157-192231-
/O.CAN.KDTX.TO.W.0021.000000T0000Z-100819T2245Z/
SAGINAW MI-TUSCOLA MI-
623 PM EDT THU AUG 19 2010

...THE TORNADO WARNING FOR EXTREME SOUTHWESTERN TUSCOLA AND EXTREME 
SOUTHEASTERN SAGINAW COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4305 8369 4317 8370 4320 8366 4322 8347
      4306 8346
TIME...MOT...LOC 2221Z 307DEG 30KT 4311 8352

$$

MIC049-192245-
/O.CON.KDTX.TO.W.0021.000000T0000Z-100819T2245Z/
GENESEE MI-
623 PM EDT THU AUG 19 2010

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

AT 618 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR OTISVILLE...OR 7 MILES NORTH OF DAVISON...
MOVING SOUTHEAST AT 35 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
GENESEE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4305 8369 4317 8370 4320 8366 4322 8347
      4306 8346
TIME...MOT...LOC 2221Z 307DEG 30KT 4311 8352

$$

DG

812 
WWUS53 KDTX 192240
SVSDTX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
640 PM EDT THU AUG 19 2010

MIC049-192250-
/O.EXP.KDTX.TO.W.0021.000000T0000Z-100819T2245Z/
GENESEE MI-
640 PM EDT THU AUG 19 2010

...THE TORNADO WARNING FOR NORTHEASTERN GENESEE COUNTY WILL EXPIRE AT
645 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

LAT...LON 4305 8369 4317 8370 4320 8366 4322 8347
      4306 8346
TIME...MOT...LOC 2240Z 307DEG 30KT 4301 8335

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 2:24 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer, Sanilac, Tuscola	66 min
Aug 19, 2:45 PM EDT	Special Marine Warning	DTX		2 hr
Aug 19, 3:26 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer, Tuscola	40 min
Aug 19, 4:55 PM EDT	Severe Thunderstorm Warning	DTX	Bay, Midland, Saginaw	65 min
Aug 19, 5:19 PM EDT	Tornado Warning	DTX	Saginaw	41 min
Aug 19, 5:32 PM EDT	Severe Thunderstorm Warning	DTX	Tuscola	44 min
Aug 19, 6:24 PM EDT	Severe Thunderstorm Warning	DTX	Lapeer	47 min
Aug 19, 6:31 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	29 min
Aug 19, 6:42 PM EDT	Severe Thunderstorm Warning	DTX	Oakland	48 min
Aug 19, 7:04 PM EDT	Tornado Warning	DTX	Macomb, Oakland	56 min
Aug 19, 7:19 PM EDT	Special Marine Warning	DTX		55 min
Aug 19, 7:40 PM EDT	Tornado Warning	DTX	Macomb	20 min

Nearby

Tornado Warnings in Michigan, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.