Alert archive / Michigan / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 21, NWS Gaylord, MI

September 1, 20144 counties in Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Sep 1, 2014, 1:52 PM EDT for 4 counties in Michigan. It was in force for 53 min. 6 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: Sep 1, 2014, 1:52 PM EDT (17:52 UTC)
Expired: Sep 1, 2014, 2:45 PM EDT
In force: 53 min
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Antrim County, MI, Crawford County, MI, Kalkaska County, MI, Otsego County, MI

The radar

The NCL Michigan radar (KAPX), 4 km from the middle of the area, began a volume at 17:53 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 1, 1:53 PM EDT	TORNADO 1	3 Nne Darragh, MI	NATIONAL WEATHER SERVICE STORM SURVEY CONFIRMED AN EF-1 TORNADO. DAMAGE CONSISTED OF MAINLY UPROOTED HARDWOOD AND SOFTWOOD TREES...WITH SEVERAL RESIDENCES DAMAGED FROM FALLING TREES. MAXIMUM WINDS ARE ESTIMATED AT 100 MPH...WITH A TOTAL PATH LENGTH OF APPROXIM
Sep 1, 2:01 PM EDT	TSTM WND DMG	9 Nne Bear Lake, MI	POSSIBLE TORNADO WITH A LOT OF TREES AND POWER LINES DOWN OVER NORTHEASTERN PORTIONS OF KALKASKA COUNTY.
Sep 1, 2:16 PM EDT	TORNADO	3 Sw Frederic, MI	A NATIONAL WEATHER SERVICE STORM SURVEY CONFIRMED AN EF-1 TORNADO. DAMAGE CONSISTED OF UPROOTED AND SNAPPED TREES AS WELL AS SIGNIFICANT ROOF DAMAGE TO ONE RESIDENCE AND SIGNIFICANT DAMAGE TO A BARN. THE MAXIMUM WINDS WERE ESTIMATED AT 100 MPH. THE PATH OF LEN
Sep 1, 2:28 PM EDT	FUNNEL CLOUD	Frederic, MI	TREES AND POWER LINES REPORTED DOWN AS WELL
Sep 1, 2:28 PM EDT	TSTM WND DMG	Frederic, MI	TREES AND POWERLINES DOWN. CALLER REPORTED SEEING FUNNEL CLOUD AS WELL.
Sep 1, 2:42 PM EDT	TORNADO	5 Ssw Johannesburg, MI	A NATIONAL WEATHER SERVICE STORM SURVEY CONFIRMED AN EF-1 TORNADO. DAMAGE CONSISTED OF UPROOTED HARDWOOD TREES AND SOFTWOOD TREES WITH A NUMBER OF THESE TREES FALLING ON AND DAMAGING RESIDENCES. THE MAXIMUM WINDS WERE ESTIMATED AT 110 MPH. THE PATH LENGTH WAS

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
Sep 1, 1:23 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 5.9 hours before the alert went out and 182 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: 43 J/kg
Mixed-layer CIN: -133 J/kg
Mixed-layer LCL: 955 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 96 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.

011 
WUUS53 KAPX 011752
SVRAPX
MIC009-039-079-137-011845-
/O.NEW.KAPX.SV.W.0021.140901T1752Z-140901T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
152 PM EDT MON SEP 1 2014

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ANTRIM COUNTY IN NORTHERN LOWER MICHIGAN...
  NORTHERN CRAWFORD COUNTY IN NORTHERN LOWER MICHIGAN...
  EASTERN KALKASKA COUNTY IN NORTHERN LOWER MICHIGAN...
  OTSEGO COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 245 PM EDT

* AT 150 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM ANTRIM TO SHARON...AND MOVING NORTHEAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  MANCELONA...GRAYLING...GAYLORD...ANTRIM...BEAR LAKE...ALBA...
  FREDERIC...ELMIRA...HARTWICK PINES STATE PARK...WATERS...OTSEGO
  LAKE STATE PARK...SPARR...CHESTER TOWNSHIP...VANDERBILT...
  LOVELLS...JOHANNESBURG...EASTERN CORWITH TOWNSHIP...PICKEREL LAKE
  AND BLUE LAKE TOWNSHIP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4487 8514 4505 8486 4510 8486 4512 8485
      4512 8473 4520 8473 4520 8437 4486 8437
      4485 8442 4478 8437 4472 8438 4453 8505
TIME...MOT...LOC 1752Z 232DEG 25KT 4484 8504 4459 8500

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH

$$

ARNOTT

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 1, 3:59 AM EDT	Beach Hazards Statement	APX	Benzie, Leelanau, Manistee	19 hr
Sep 1, 12:57 PM EDT	Severe Thunderstorm Warning	APX	Grand Traverse, Kalkaska	48 min
Sep 1, 1:54 PM EDT	Tornado Warning	APX	Antrim, Kalkaska	24 min
Sep 1, 2:11 PM EDT	Tornado Warning	APX	Crawford	34 min
Sep 1, 2:30 PM EDT	Tornado Warning	APX	Otsego	30 min
Sep 1, 2:34 PM EDT	Severe Thunderstorm Warning	APX	Cheboygan	43 min
Sep 1, 2:42 PM EDT	Severe Thunderstorm Warning	APX	Montmorency, Oscoda	47 min
Sep 1, 2:49 PM EDT	Severe Thunderstorm Warning	APX	Ogemaw, Roscommon	42 min
Sep 1, 2:53 PM EDT	Tornado Warning Tornado observed	APX	Montmorency	37 min
Sep 1, 2:55 PM EDT	Tornado Warning	APX	Cheboygan	21 min
Sep 1, 3:02 PM EDT	Special Marine Warning	APX		88 min
Sep 1, 3:05 PM EDT	Severe Thunderstorm Warning	APX	Presque Isle	55 min
Sep 1, 3:11 PM EDT	Severe Thunderstorm Warning	APX	Alcona, Alpena	64 min
Sep 1, 3:17 PM EDT	Special Marine Warning	APX		88 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2014 Every severe thunderstorm warning in 2014

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.