Alert archive / Michigan / Tornado Warnings in 2018

Tornado Warning 1, NWS Gaylord, MI

August 28, 2018Antrim County, Charlevoix County, Michigan

NWS Gaylord, MI issued this tornado warning at Aug 28, 2018, 6:59 PM EDT for Antrim County, Charlevoix County, Michigan. It was in force for 31 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
Aug 28, 2018, 6:59 PM EDT (22:59 UTC)
Expired
Aug 28, 2018, 7:30 PM EDT
In force
31 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Antrim County, MI, Charlevoix County, MI

The radar

The NCL Michigan radar (KAPX), 55 km from the middle of the area, began a volume at 23:02 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 28, 6:23 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 11.0 hours before the alert went out and 229 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 2018-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2018-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 300 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
733 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
300 m²/s²
0-3 km storm-relative helicity
308 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

330 
WFUS53 KAPX 282259
TORAPX
MIC009-029-282330-
/O.NEW.KAPX.TO.W.0001.180828T2259Z-180828T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Gaylord MI
659 PM EDT TUE AUG 28 2018

The National Weather Service in Gaylord has issued a

* Tornado Warning for...
  Northwestern Antrim County in northern Michigan...
  South central Charlevoix County in northern Michigan...

* Until 730 PM EDT.
    
* At 658 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Torch Lake, or 10 miles southeast of Grand
  Traverse Light, moving northeast at 25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  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 dangerous storm will be near...
  Torch Lake around 705 PM EDT.
  Central Lake around 720 PM EDT.
  East Jordan, Ellsworth and Ironton around 730 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4534 8522 4512 8501 4499 8538 4505 8538
      4511 8536 4515 8538 4518 8538 4521 8539
      4523 8539
TIME...MOT...LOC 2258Z 236DEG 23KT 4507 8546 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

ALM
1 follow-up statement
300 
WWUS53 KAPX 282313
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
713 PM EDT TUE AUG 28 2018

MIC009-029-282330-
/O.CON.KAPX.TO.W.0001.000000T0000Z-180828T2330Z/
Antrim MI-Charlevoix MI-
713 PM EDT TUE AUG 28 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
NORTHWESTERN ANTRIM AND SOUTHWESTERN CHARLEVOIX COUNTIES...
    
At 711 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Torch Lake, or 9 miles southwest of Ellsworth,
moving east at 20 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

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 dangerous storm will be near...
  East Jordan, Ellsworth and Central Lake around 730 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4517 8538 4525 8515 4509 8508 4499 8538
      4505 8538 4511 8536 4515 8538
TIME...MOT...LOC 2311Z 253DEG 18KT 4507 8537 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

ALM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 11:25 PM EDTSpecial Marine WarningAPX95 min
Aug 28, 12:09 AM EDTSpecial Marine WarningAPX96 min
Aug 28, 12:26 AM EDTSevere Thunderstorm WarningAPXBenzie, Leelanau, Manistee64 min
Aug 28, 12:33 AM EDTSpecial Marine WarningAPX27 min
Aug 28, 12:58 AM EDTSpecial Marine WarningAPX62 min
Aug 28, 1:01 AM EDTSevere Thunderstorm WarningAPXAntrim, Grand Traverse, Kalkaska, Missaukee, Wexford59 min
Aug 28, 1:24 AM EDTSevere Thunderstorm WarningAPXCharlevoix, Emmet51 min
Aug 28, 1:35 AM EDTSevere Thunderstorm WarningAPXChippewa, Mackinac40 min
Aug 28, 1:47 AM EDTSevere Thunderstorm WarningAPXCheboygan, Emmet, Presque Isle73 min
Aug 28, 1:58 AM EDTSevere Thunderstorm WarningAPXAntrim, Crawford, Kalkaska, Otsego47 min
Aug 28, 2:07 AM EDTSpecial Marine WarningAPX53 min
Aug 28, 2:10 AM EDTSevere Thunderstorm WarningAPXAlpena, Montmorency65 min
Aug 28, 2:50 AM EDTSpecial Marine WarningAPX85 min
Aug 28, 12:13 PM EDTFlood WatchAPXAlcona, Alpena, Antrim, Arenac, Benzie, Crawford and 13 more18 hr
Aug 28, 4:57 PM EDTSpecial Marine WarningAPX2 hr
Aug 28, 5:47 PM EDTSpecial Weather StatementAPXLeelanau43 min
Aug 28, 5:54 PM EDTSevere Thunderstorm WarningAPXLeelanau70 min
Aug 28, 6:08 PM EDTSpecial Marine WarningAPX67 min
Aug 28, 6:15 PM EDTSpecial Weather StatementAPXBenzie45 min
Aug 28, 6:31 PM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Leelanau44 min
Aug 28, 6:46 PM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Manistee, Wexford43 min
Aug 28, 7:02 PM EDTSpecial Weather StatementAPXAntrim, Grand Traverse43 min
Aug 28, 7:10 PM EDTSevere Thunderstorm WarningAPXGrand Traverse, Kalkaska50 min
Aug 28, 7:16 PM EDTSpecial Weather StatementAPXWexford29 min
Aug 28, 7:26 PM EDTSevere Thunderstorm WarningAPXGrand Traverse, Kalkaska, Missaukee, Wexford34 min
Aug 28, 7:32 PM EDTSevere Thunderstorm WarningAPXAntrim, Kalkaska, Otsego58 min
Aug 28, 7:51 PM EDTSpecial Weather StatementAPXCrawford, Gladwin, Kalkaska, Missaukee, Montmorency, Ogemaw and 3 more39 min
Aug 28, 7:56 PM EDTTornado WarningAPXAntrim, Otsego19 min

Nearby

Tornado Warnings in Michigan, 2018Every tornado warning in 2018Tornadoes in 2018

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.