Alert archive / Michigan / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 52, NWS Gaylord, MI

October 17, 2016Chippewa County, Emmet County, Mackinac County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Oct 17, 2016, 8:08 AM EDT for Chippewa County, Emmet County, Mackinac County, Michigan. It was in force for 52 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
Oct 17, 2016, 8:08 AM EDT (12:08 UTC)
Expired
Oct 17, 2016, 9:00 AM EDT
In force
52 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Chippewa County, MI, Emmet County, MI, Mackinac County, MI

The radar

The NCL Michigan radar (KAPX), 112 km from the middle of the area, began a volume at 12:09 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
Oct 17, 8:12 AM EDTTSTM WND DMG3 Se Wilderness State P, MIMULTIPLE TREES AND POWER LINES DOWN. TIME ESTIMATED BY RADAR.

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, 0.1 hours before the alert went out and 186 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, Alpena, MI at 12:00Z on 2016-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 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, Alpena, MI at 12:00Z on 2016-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 446 square meters per square second.19395878Sfc1 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
53 J/kg
Mixed-layer CIN
-363 J/kg
Mixed-layer LCL
543 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
446 m²/s²
0-3 km storm-relative helicity
491 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

756 
WUUS53 KAPX 171208
SVRAPX
MIC033-047-097-171300-
/O.NEW.KAPX.SV.W.0052.161017T1208Z-161017T1300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
808 AM EDT MON OCT 17 2016

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL CHIPPEWA COUNTY IN EASTERN MICHIGAN...
  NORTHEASTERN EMMET COUNTY IN NORTHERN MICHIGAN...
  SOUTHEASTERN MACKINAC COUNTY IN EASTERN MICHIGAN...

* UNTIL 900 AM EDT

* AT 808 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WILDERNESS
  STATE PARK...OR 11 MILES WEST OF MACKINAW CITY...MOVING NORTHEAST
  AT 45 MPH.

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

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  ST. IGNACE...MACKINAW CITY...MACKINAC ISLAND...PICKFORD...
  CEDARVILLE...POINT AUX PINS ON...EVERGREEN SHORES...STRAITS STATE
  PARK...GOETZVILLE...WILDERNESS STATE PARK...MUNUSCONG...HESSEL...
  STALWART...RABER AND MARQUETTE ISLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4619 8408 4616 8402 4589 8404 4590 8413
      4586 8435 4580 8426 4574 8427 4572 8459
      4576 8472 4579 8473 4571 8473 4569 8499
      4583 8511 4583 8498 4590 8499 4628 8411
TIME...MOT...LOC 1208Z 239DEG 39KT 4581 8496 

HAIL...1.00IN
WIND...60MPH
 
$$

FARINA
1 follow-up statement
312 
WWUS53 KAPX 171255
SVSAPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
855 AM EDT MON OCT 17 2016

MIC033-047-097-171304-
/O.EXP.KAPX.SV.W.0052.000000T0000Z-161017T1300Z/
CHIPPEWA MI-EMMET MI-MACKINAC MI-
855 AM EDT MON OCT 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL CHIPPEWA...
NORTHEASTERN EMMET AND SOUTHEASTERN MACKINAC COUNTIES WILL EXPIRE AT
900 AM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER HEAVY RAIN
IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4619 8408 4616 8402 4589 8404 4590 8413
      4586 8435 4580 8426 4574 8427 4572 8459
      4576 8472 4579 8473 4571 8473 4569 8499
      4583 8511 4583 8498 4590 8499 4628 8411
TIME...MOT...LOC 1254Z 239DEG 39KT 4606 8436 

$$

FARINA

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 6:12 AM EDTSpecial Marine WarningAPX63 min
Oct 17, 6:23 AM EDTSpecial Weather StatementAPXCharlevoix52 min
Oct 17, 6:33 AM EDTSpecial Marine WarningAPX57 min
Oct 17, 7:09 AM EDTSevere Thunderstorm WarningAPXAntrim, Charlevoix, Leelanau36 min
Oct 17, 7:14 AM EDTSpecial Marine WarningAPX46 min
Oct 17, 7:24 AM EDTSpecial Marine WarningAPX51 min
Oct 17, 7:43 AM EDTSevere Thunderstorm WarningAPXAntrim, Charlevoix, Leelanau62 min
Oct 17, 8:01 AM EDTSpecial Weather StatementAPXEmmet29 min
Oct 17, 8:05 AM EDTSpecial Marine WarningAPX40 min
Oct 17, 8:27 AM EDTSevere Thunderstorm WarningAPXAntrim, Charlevoix, Cheboygan, Otsego63 min
Oct 17, 8:46 AM EDTSpecial Marine WarningAPX59 min
Oct 17, 9:50 AM EDTSpecial Weather StatementAPXAlpena, Montmorency, Ogemaw, Oscoda55 min
Oct 17, 9:53 AM EDTSpecial Weather StatementAPXPresque Isle22 min
Oct 17, 9:59 AM EDTSpecial Marine WarningAPX61 min
Oct 17, 10:10 AM EDTSevere Thunderstorm WarningAPXAlcona, Iosco, Ogemaw, Oscoda50 min
Oct 17, 10:33 AM EDTSpecial Marine WarningAPX57 min
Oct 17, 12:06 PM EDTSpecial Marine WarningAPX39 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.