Alert archive / Michigan / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 13, NWS Gaylord, MI

July 1, 20184 counties in Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 1, 2018, 7:37 PM EDT for 4 counties in Michigan. It was in force for 53 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
Jul 1, 2018, 7:37 PM EDT (23:37 UTC)
Expired
Jul 1, 2018, 8:30 PM EDT
In force
53 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Antrim County, MI, Charlevoix County, MI, Grand Traverse County, MI, Kalkaska County, MI

The radar

The NCL Michigan radar (KAPX), 37 km from the middle of the area, began a volume at 23:41 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
Jul 1, 6:35 PM EDTSevere Thunderstorm WatchSPC3 hr

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 11.6 hours before the alert went out and 217 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 2018-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 168 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 2018-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
168 J/kg
Mixed-layer CIN
-170 J/kg
Mixed-layer LCL
1577 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

628 
WUUS53 KAPX 012337
SVRAPX
MIC009-029-055-079-020030-
/O.NEW.KAPX.SV.W.0013.180701T2337Z-180702T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
737 PM EDT SUN JUL 1 2018

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  Eastern Grand Traverse County in northern Michigan...
  Antrim County in northern Michigan...
  Kalkaska County in northern Michigan...
  Charlevoix County in northern Michigan...

* Until 830 PM EDT.

* At 736 PM EDT, severe thunderstorms were located along a line
  extending from near Peshawbestown to Hannah, moving northeast at 40
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Boyne City, East Jordan, Kalkaska, Elk Rapids, Mancelona, Bellaire,
  Ellsworth, Central Lake, Fife Lake, Boyne Falls, Clam River,
  Kewadin, Young State Park, Ironton, Alba, and Clarion.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4493 8539 4500 8537 4511 8536 4521 8539
      4534 8505 4527 8500 4527 8497 4529 8496
      4529 8484 4512 8484 4511 8486 4467 8485
      4451 8536 4451 8542 4485 8546
TIME...MOT...LOC 2336Z 244DEG 35KT 4500 8557 4457 8559 

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

JZ
2 follow-up statements
201 
WWUS53 KAPX 012359
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
759 PM EDT SUN JUL 1 2018

MIC009-029-055-079-020030-
/O.CON.KAPX.SV.W.0013.000000T0000Z-180702T0030Z/
Grand Traverse MI-Antrim MI-Kalkaska MI-Charlevoix MI-
759 PM EDT SUN JUL 1 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHEASTERN GRAND TRAVERSE...ANTRIM...KALKASKA AND SOUTHEASTERN
CHARLEVOIX COUNTIES...

At 759 PM EDT, severe thunderstorms were located along a line
extending from Norwood to near Central Lake to Mesick, moving
northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Boyne City, East Jordan, Kalkaska, Elk Rapids, Mancelona, Bellaire,
Ellsworth, Antrim, Central Lake, Fife Lake, Boyne Falls, Clam River,
Kewadin, Sigma, Warner Township, Young State Park, Ironton, Alba,
Horton Bay and Clarion.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4493 8539 4500 8537 4511 8536 4521 8539
      4534 8505 4527 8500 4527 8497 4529 8496
      4529 8484 4512 8484 4511 8486 4467 8485
      4451 8536 4451 8542 4485 8546
TIME...MOT...LOC 2359Z 218DEG 61KT 4525 8535 4501 8529 4440 8571 

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

JSL
519 
WWUS53 KAPX 020008 CCA
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
808 PM EDT SUN JUL 1 2018

MIC009-029-055-079-020030-
/O.COR.KAPX.SV.W.0013.000000T0000Z-180702T0030Z/
Grand Traverse MI-Antrim MI-Kalkaska MI-Charlevoix MI-
808 PM EDT SUN JUL 1 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR SOUTHEASTERN GRAND TRAVERSE...ANTRIM...KALKASKA AND SOUTHEASTERN
CHARLEVOIX COUNTIES...

At 808 PM EDT, severe thunderstorms were located along a line
extending from Charlevoix to near Central Lake to near Sherman,
moving northeast at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Boyne City, East Jordan, Kalkaska, Elk Rapids, Mancelona, Bellaire,
Ellsworth, Antrim, Central Lake, Fife Lake, Boyne Falls, Clam River,
Kewadin, Sigma, Warner Township, Young State Park, Ironton, Alba,
Horton Bay and Clarion.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4493 8539 4500 8537 4511 8536 4521 8539
      4534 8505 4527 8500 4527 8497 4529 8496
      4529 8484 4512 8484 4511 8486 4467 8485
      4451 8536 4451 8542 4485 8546
TIME...MOT...LOC 2359Z 223DEG 48KT 4525 8535 4501 8529 4440 8571 

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

JSL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 11:37 PM EDTSpecial Marine WarningAPX23 min
Jul 1, 3:28 AM EDTHeat AdvisoryAPXAlcona, Alpena, Antrim, Arenac, Benzie, Cheboygan and 16 more17 hr
Jul 1, 3:53 AM EDTSmall Craft AdvisoryAPX26 hr
Jul 1, 5:54 PM EDTSpecial Marine WarningAPX66 min
Jul 1, 6:13 PM EDTSpecial Weather StatementAPXBenzie, Leelanau47 min
Jul 1, 6:34 PM EDTSpecial Marine WarningAPX86 min
Jul 1, 6:36 PM EDTSpecial Weather StatementAPXMackinac24 min
Jul 1, 6:39 PM EDTSpecial Weather StatementAPXGrand Traverse51 min
Jul 1, 7:02 PM EDTSpecial Weather StatementAPXBenzie28 min
Jul 1, 7:10 PM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Leelanau, Manistee, Wexford50 min
Jul 1, 7:55 PM EDTSevere Thunderstorm WarningAPXGrand Traverse, Manistee, Wexford50 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2018Every severe thunderstorm warning 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.