Alert archive / Michigan / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 39, NWS Gaylord, MI

July 21, 2016Grand Traverse County, Wexford County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 21, 2016, 11:23 AM EDT for Grand Traverse County, Wexford County, Michigan. It was in force for 37 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
Jul 21, 2016, 11:23 AM EDT (15:23 UTC)
Expired
Jul 21, 2016, 12:00 PM EDT
In force
37 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Grand Traverse County, MI, Wexford County, MI

The radar

The NCL Michigan radar (KAPX), 78 km from the middle of the area, began a volume at 15:25 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

TimeReportWhereRemark
Jul 21, 11:37 AM EDTTSTM WND DMG2 Nw Williamsburg, MILARGE TREE DOWN WITH POWER OUTAGES. TIME BASED OFF RADAR.

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.

IssuedProductOfficeLasted
Jul 21, 9:45 AM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 3.4 hours before the alert went out and 200 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2016-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1904 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2016-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1904 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
686 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

980 
WUUS53 KAPX 211523
SVRAPX
MIC055-165-211600-
/O.NEW.KAPX.SV.W.0039.160721T1523Z-160721T1600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
1123 AM EDT THU JUL 21 2016

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEXFORD COUNTY IN NORTHERN MICHIGAN...
  GRAND TRAVERSE COUNTY IN NORTHERN MICHIGAN...

* UNTIL NOON EDT

* AT 1123 AM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR TRAVERSE CITY TO NEAR KARLIN TO NEAR MESICK...
  MOVING EAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  TRAVERSE CITY...CADILLAC...KINGSLEY...MANTON...SHERMAN...BUCKLEY...
  BOON...FIFE LAKE...MESICK...HARRIETTA...KARLIN...INTERLOCHEN...
  MEAUWATAKA...SPIDER LAKE...TRAVERSE CITY STATE PARK...GRAWN...
  YUMA...INTERLOCHEN STATE PARK...WILLIAMSBURG AND HANNAH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4422 8534 4433 8582 4457 8582 4478 8570
      4477 8564 4482 8564 4481 8533
TIME...MOT...LOC 1523Z 280DEG 34KT 4475 8564 4455 8574 4442 8582 

HAIL...<.75IN
WIND...60MPH
 
$$

JPB
3 follow-up statements
465 
WWUS53 KAPX 211534
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1134 AM EDT THU JUL 21 2016

MIC055-165-211600-
/O.CON.KAPX.SV.W.0039.000000T0000Z-160721T1600Z/
WEXFORD MI-GRAND TRAVERSE MI-
1134 AM EDT THU JUL 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL NOON EDT FOR
WEXFORD AND SOUTHEASTERN GRAND TRAVERSE COUNTIES...

AT 1134 AM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR WILLIAMSBURG TO NEAR BUCKLEY TO NEAR
YUMA...MOVING EAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
CADILLAC...KINGSLEY...MANTON...SHERMAN...BUCKLEY...BOON...
FIFE LAKE...MESICK...HARRIETTA...MEAUWATAKA...SPIDER LAKE...YUMA...
WILLIAMSBURG...HANNAH AND BATES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4433 8582 4439 8582 4452 8567 4482 8551
      4481 8533 4422 8534
TIME...MOT...LOC 1534Z 278DEG 32KT 4482 8546 4452 8561 4433 8582 

HAIL...<.75IN
WIND...60MPH
 
$$

FARINA
312 
WWUS53 KAPX 211545
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1145 AM EDT THU JUL 21 2016

MIC055-165-211600-
/O.CON.KAPX.SV.W.0039.000000T0000Z-160721T1600Z/
WEXFORD MI-GRAND TRAVERSE MI-
1145 AM EDT THU JUL 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL NOON EDT FOR
NORTHERN WEXFORD AND SOUTHEASTERN GRAND TRAVERSE COUNTIES...

AT 1145 AM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM RAPID CITY TO 6 MILES NORTH OF MANTON TO NEAR
HOXEYVILLE...MOVING EAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
CADILLAC...MANTON...BOON...FIFE LAKE...HARRIETTA...MEAUWATAKA AND
WILLIAMSBURG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4423 8534 4422 8535 4432 8577 4450 8552
      4481 8539 4481 8533
TIME...MOT...LOC 1545Z 278DEG 34KT 4484 8531 4450 8544 4420 8579 

HAIL...<.75IN
WIND...60MPH
 
$$

FARINA
595 
WWUS53 KAPX 211557
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1155 AM EDT THU JUL 21 2016

MIC055-165-211605-
/O.EXP.KAPX.SV.W.0039.000000T0000Z-160721T1600Z/
WEXFORD MI-GRAND TRAVERSE MI-
1155 AM EDT THU JUL 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WEXFORD AND
SOUTHEASTERN GRAND TRAVERSE COUNTIES WILL EXPIRE AT NOON EDT...
    
THE STORMS WHICH PROMPTED THE WARNING WILL EXIT THE WARNED AREA AND
WEAKEN. THEREFORE...THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER
GUSTY WINDS ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM EDT FOR
NORTHERN MICHIGAN.

LAT...LON 4423 8534 4422 8535 4432 8577 4450 8552
      4481 8539 4481 8533
TIME...MOT...LOC 1547Z 280DEG 34KT 4484 8531 4450 8544 4420 8579 

$$

FARINA

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 3:35 AM EDTSmall Craft AdvisoryAPX19 hr
Jul 21, 3:41 AM EDTBeach Hazards StatementAPXBenzie, Leelanau, Manistee16 hr
Jul 21, 8:32 AM EDTSpecial Weather StatementAPXChippewa, Mackinac3 hr
Jul 21, 9:07 AM EDTSpecial Weather StatementAPXAntrim, Benzie, Charlevoix, Cheboygan, Crawford, Emmet and 9 more3 hr
Jul 21, 9:42 AM EDTSpecial Marine WarningAPX93 min
Jul 21, 10:44 AM EDTSpecial Weather StatementAPXAntrim, Benzie, Emmet, Grand Traverse46 min
Jul 21, 12:20 PM EDTSpecial Weather StatementAPXBenzie, Grand Traverse, Kalkaska, Missaukee, Wexford70 min
Jul 21, 2:06 PM EDTSpecial Marine WarningAPX84 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2016Every severe thunderstorm warning in 2016

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.