Alert archive / Michigan / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 1, NWS Gaylord, MI

April 10, 20115 counties in Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Apr 10, 2011, 4:23 AM EDT for 5 counties in Michigan. It was in force for 22 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: Apr 10, 2011, 4:23 AM EDT (08:23 UTC)
Expired: Apr 10, 2011, 4:45 AM EDT
In force: 22 min
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Benzie County, MI, Grand Traverse County, MI, Leelanau County, MI, Manistee County, MI, Wexford County, MI

The radar

The NCL Michigan radar (KAPX), 109 km from the middle of the area, began a volume at 08:24 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 nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 8.4 hours before the alert went out and 166 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 581 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 114 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

934 
WUUS53 KAPX 100823
SVRAPX
MIC019-055-089-101-165-100845-
/O.NEW.KAPX.SV.W.0001.110410T0823Z-110410T0845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
423 AM EDT SUN APR 10 2011

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BENZIE COUNTY IN NORTHERN LOWER MICHIGAN...
  WESTERN GRAND TRAVERSE COUNTY IN NORTHERN LOWER MICHIGAN...
  SOUTH CENTRAL LEELANAU COUNTY IN NORTHERN LOWER MICHIGAN...
  NORTHERN MANISTEE COUNTY IN NORTHERN LOWER MICHIGAN...
  NORTHWESTERN WEXFORD COUNTY IN NORTHERN LOWER MICHIGAN...

* UNTIL 445 AM EDT

* AT 415 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 8 MILES WEST OF ARCADIA...OR 13 MILES SOUTHWEST
  OF FRANKFORT...AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FRANKFORT...BEULAH...THOMPSONVILLE...TRAVERSE CITY...ELBERTA...
  BENZONIA...COPEMISH...HONOR...BENDON...LAKE ANN...INTERLOCHEN...
  INTERLOCHEN STATE PARK...KARLIN...GRAWN...HANNAH...FOUCH...
  GREILICKVILLE...KINGSLEY...BINGHAM AND BLAINE TOWNSHIP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4441 8626 4448 8627 4456 8623 4465 8626
      4489 8565 4478 8562 4479 8560 4458 8546
      4429 8627 4433 8629
TIME...MOT...LOC 0822Z 243DEG 49KT 4452 8626
WIND...HAIL <50MPH 1.00IN

$$

1 follow-up statement

530 
WWUS34 KAPX 100837
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
437 AM EDT SUN APR 10 2011

MIC019-055-089-101-165-100845-
/O.CON.KAPX.SV.W.0001.000000T0000Z-110410T0845Z/
GRAND TRAVERSE MI-BENZIE MI-MANISTEE MI-WEXFORD MI-LEELANAU MI-
437 AM EDT SUN APR 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
LEELANAU...NORTHWESTERN WEXFORD...NORTHERN MANISTEE...BENZIE AND
WESTERN GRAND TRAVERSE COUNTIES UNTIL 445 AM EDT...

AT 437 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 5 MILES NORTHWEST OF KALEVA...OR 10 MILES SOUTHWEST
OF THOMPSONVILLE...MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
  TRAVERSE CITY...HONOR...KARLIN...INTERLOCHEN STATE PARK...BENDON...
  INTERLOCHEN...HANNAH...GRAWN...LAKE ANN...KINGSLEY...
  GREILICKVILLE...FOUCH...BINGHAM AND WALLIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE
TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

&&

LAT...LON 4441 8626 4448 8627 4456 8623 4465 8626
      4489 8565 4478 8562 4479 8560 4458 8546
      4429 8627 4433 8629
TIME...MOT...LOC 0837Z 243DEG 49KT 4449 8593
WIND...HAIL <50MPH 1.00IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 4:45 AM EDT	Severe Thunderstorm Warning	APX	Benzie, Grand Traverse, Kalkaska, Manistee, Wexford	32 min
Apr 10, 5:01 AM EDT	Special Marine Warning	APX		44 min
Apr 10, 5:56 AM EDT	Severe Thunderstorm Warning	APX	Antrim, Benzie, Grand Traverse, Kalkaska, Manistee, Wexford	49 min
Apr 10, 6:20 AM EDT	Severe Thunderstorm Warning	APX	Crawford, Kalkaska, Missaukee, Roscommon, Wexford	55 min
Apr 10, 7:34 AM EDT	Special Marine Warning	APX		86 min
Apr 10, 3:55 PM EDT	Gale Watch	APX		11 hr
Apr 10, 5:34 PM EDT	Special Marine Warning	APX		56 min
Apr 10, 6:24 PM EDT	Severe Thunderstorm Warning	APX	Benzie, Leelanau	44 min
Apr 10, 6:51 PM EDT	Special Marine Warning	APX		24 min
Apr 10, 6:55 PM EDT	Severe Thunderstorm Warning	APX	Antrim, Charlevoix, Grand Traverse, Leelanau	22 min
Apr 10, 7:15 PM EDT	Severe Thunderstorm Warning	APX	Alcona, Alpena, Montmorency	60 min
Apr 10, 7:27 PM EDT	Severe Thunderstorm Warning	APX	Crawford, Montmorency, Oscoda, Otsego	36 min
Apr 10, 7:54 PM EDT	Severe Thunderstorm Warning	APX	Alcona, Oscoda	66 min
Apr 10, 7:56 PM EDT	Special Marine Warning	APX		109 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2011 Every severe thunderstorm warning in 2011

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.