Alert archive / Michigan / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 21, NWS Gaylord, MI

July 15, 20204 counties in Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 15, 2020, 4:38 PM EDT for 4 counties in Michigan. It was in force for 15 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 15, 2020, 4:38 PM EDT (20:38 UTC)
Expired: Jul 15, 2020, 4:53 PM EDT
In force: 15 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, Kalkaska County, MI, Otsego County, MI

The radar

The NCL Michigan radar (KAPX), 24 km from the middle of the area, began a volume at 20:37 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

Alpena, MI (KAPX), launched 12:00Z, 8.6 hours before the alert went out and 205 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: 1109 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

279 
WUUS53 KAPX 152038
SVRAPX
MIC009-029-079-137-152115-
/O.NEW.KAPX.SV.W.0021.200715T2038Z-200715T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
438 PM EDT Wed Jul 15 2020

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  Western Otsego County in northern Michigan...
  Antrim County in northern Michigan...
  North central Kalkaska County in northern Michigan...
  Southeastern Charlevoix County in northern Michigan...

* Until 515 PM EDT.

* At 437 PM EDT, a severe thunderstorm was located near Mancelona,
  moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Boyne City, Gaylord, East Jordan, Mancelona, Bellaire, Antrim,
  Elmira, Central Lake, Boyne Falls, Otsego Lake State Park, Jordan
  Township, Warner Township, Alba, Waters and Lake Bellaire.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4479 8515 4507 8536 4529 8480 4493 8456
TIME...MOT...LOC 2037Z 249DEG 37KT 4495 8511 

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

adam

1 follow-up statement

780 
WWUS53 KAPX 152053
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
453 PM EDT Wed Jul 15 2020

MIC009-029-079-137-152103-
/O.CAN.KAPX.SV.W.0021.000000T0000Z-200715T2115Z/
Otsego MI-Antrim MI-Kalkaska MI-Charlevoix MI-
453 PM EDT Wed Jul 15 2020

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN OTSEGO...ANTRIM...
NORTH CENTRAL KALKASKA AND SOUTHEASTERN CHARLEVOIX COUNTIES IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 4479 8515 4507 8536 4529 8480 4493 8456
TIME...MOT...LOC 2050Z 249DEG 37KT 4501 8489 

$$

adam

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 3:55 PM EDT	Special Weather Statement	APX	Grand Traverse	50 min
Jul 15, 4:05 PM EDT	Severe Thunderstorm Warning	APX	Antrim, Grand Traverse, Kalkaska	55 min
Jul 15, 4:26 PM EDT	Special Weather Statement	APX	Antrim	49 min
Jul 15, 5:14 PM EDT	Special Weather Statement	APX	Montmorency, Otsego	46 min
Jul 15, 5:54 PM EDT	Special Weather Statement	APX	Montmorency	36 min
Jul 15, 6:15 PM EDT	Special Marine Warning	APX		90 min
Jul 15, 6:23 PM EDT	Special Weather Statement	APX	Presque Isle	37 min
Jul 15, 6:54 PM EDT	Special Weather Statement	APX	Presque Isle	51 min
Jul 15, 7:09 PM EDT	Special Marine Warning	APX		66 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2020 Every severe thunderstorm warning in 2020

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.