Alert archive / Michigan / Tornado Warnings in 2015

Tornado Warning 3, NWS Gaylord, MI

September 8, 2015Ogemaw County, Michigan

NWS Gaylord, MI issued this tornado warning at Sep 8, 2015, 3:48 PM EDT for Ogemaw County, Michigan. It was in force for 27 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: Sep 8, 2015, 3:48 PM EDT (19:48 UTC)
Expired: Sep 8, 2015, 4:15 PM EDT
In force: 27 min
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

County Ogemaw County, MI

The radar

The NCL Michigan radar (KAPX), 76 km from the middle of the area, began a volume at 19:52 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
Sep 8, 3:58 PM EDT	TORNADO	2 Ene Rifle River State, MI	BUILDING DAMAGE ON THAYER ROAD REPORTED BY COUNTY DISPATCH. DAMAGE CONSISTENT WITH RADAR SIGNATURE. NWS WILL CONFIRM WITH SURVEY SCHEDULED FOR WEDNESDAY.

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

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 7.8 hours before the alert went out and 148 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: 347 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 588 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 108 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.

434 
WFUS53 KAPX 081948
TORAPX
MIC129-082015-
/O.NEW.KAPX.TO.W.0003.150908T1948Z-150908T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
348 PM EDT TUE SEP 8 2015

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN OGEMAW COUNTY IN NORTHERN MICHIGAN...

* UNTIL 415 PM EDT
    
* AT 348 PM EDT...A TORNADO PRODUCING STORM WAS LOCATED OVER ROSE
  CITY...OR 12 MILES NORTHEAST OF WEST BRANCH...MOVING NORTHEAST AT
  40 MPH.

  HAZARD...DAMAGING TORNADO. 

  SOURCE...RADAR CONFIRMED TORNADO. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  NORTHEASTERN OGEMAW COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4447 8422 4451 8412 4451 8389 4441 8388
      4432 8388 4425 8405
TIME...MOT...LOC 1948Z 240DEG 33KT 4440 8407 

TORNADO...OBSERVED
HAIL...<.75IN

$$
MSB

1 follow-up statement

475 
WWUS53 KAPX 082010 RRA
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
410 PM EDT TUE SEP 8 2015

MIC129-082020-
/O.EXP.KAPX.TO.W.0003.000000T0000Z-150908T2015Z/
OGEMAW MI-
410 PM EDT TUE SEP 8 2015

...THE TORNADO WARNING FOR NORTHEASTERN OGEMAW COUNTY WILL EXPIRE AT
415 PM EDT...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 4447 8422 4451 8412 4451 8389 4441 8388
      4432 8388 4425 8405
TIME...MOT...LOC 2008Z 240DEG 33KT 4440 8407 

$$

MSB

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 8, 2:56 PM EDT	Severe Thunderstorm Warning	APX	Gladwin	34 min
Sep 8, 3:20 PM EDT	Severe Thunderstorm Warning	APX	Gladwin, Ogemaw, Roscommon	55 min
Sep 8, 3:33 PM EDT	Severe Thunderstorm Warning	APX	Arenac	57 min
Sep 8, 4:02 PM EDT	Severe Thunderstorm Warning	APX	Alcona, Iosco, Oscoda	15 min
Sep 8, 4:17 PM EDT	Special Marine Warning	APX		58 min
Sep 8, 5:11 PM EDT	Special Marine Warning	APX		49 min

Nearby

Tornado Warnings in Michigan, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.