Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 50, NWS Gaylord, MI

August 28, 2021Presque Isle County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 28, 2021, 3:57 PM EDT for Presque Isle County, Michigan. It was in force for 33 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, 2021, 3:57 PM EDT (19:57 UTC)
Expired
Aug 28, 2021, 4:30 PM EDT
In force
33 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Presque Isle County, MI

The radar

The NCL Michigan radar (KAPX), 99 km from the middle of the area, began a volume at 20:01 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, 8.0 hours before the alert went out and 98 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 2021-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 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 2021-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 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
32 J/kg
Mixed-layer CIN
-229 J/kg
Mixed-layer LCL
1106 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

799 
WUUS53 KAPX 281957
SVRAPX
MIC141-282030-
/O.NEW.KAPX.SV.W.0050.210828T1957Z-210828T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
357 PM EDT Sat Aug 28 2021

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  Southern Presque Isle County in northern Michigan...

* Until 430 PM EDT.

* At 356 PM EDT, severe thunderstorms were located along a line
  extending from near Forty Mile Point to near Rogers City to near
  Metz, moving northeast at 30 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Severe thunderstorms will be near...
  Hagensville around 400 PM EDT.
  Rogers City, Posen, Forty Mile Point and P H Hoeft State Park 
  around 405 PM EDT.

Other locations in the path of these severe thunderstorms include
Thompsons Harbor State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4520 8329 4521 8354 4520 8390 4532 8394
      4541 8409 4552 8390 4545 8378 4545 8369
      4539 8358 4539 8347 4525 8334 4523 8335
      4523 8332
TIME...MOT...LOC 1956Z 230DEG 28KT 4546 8397 4540 8387 4531 8385 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cornish
1 follow-up statement
610 
WWUS53 KAPX 282019
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
419 PM EDT Sat Aug 28 2021

MIC141-282030-
/O.CON.KAPX.SV.W.0050.000000T0000Z-210828T2030Z/
Presque Isle MI-
419 PM EDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SOUTHEASTERN PRESQUE ISLE COUNTY...

At 418 PM EDT, severe thunderstorms were located along a line
extending from 6 miles east of Rogers City to Thompsons Harbor State
Park to near Long Lake, moving east at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
  Presque Isle Light and Presque Isle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4520 8329 4521 8374 4533 8371 4546 8399
      4552 8390 4545 8378 4545 8369 4539 8358
      4539 8347 4525 8334 4523 8335 4523 8332
TIME...MOT...LOC 2018Z 263DEG 31KT 4542 8367 4536 8357 4527 8355 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cornish

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 12:49 AM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Manistee, Wexford56 min
Aug 28, 12:51 AM EDTFlash Flood WarningAPXBenzie3 hr
Aug 28, 1:08 AM EDTFlash Flood WarningAPXGrand Traverse3 hr
Aug 28, 1:40 AM EDTSpecial Weather StatementAPXCrawford, Kalkaska, Missaukee, Roscommon95 min
Aug 28, 3:42 AM EDTSevere Thunderstorm WarningAPXArenac, Gladwin, Missaukee, Ogemaw, Roscommon63 min
Aug 28, 4:15 AM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Kalkaska, Manistee, Missaukee, Wexford60 min
Aug 28, 2:07 PM EDTSevere Thunderstorm WarningAPXKalkaska38 min
Aug 28, 2:59 PM EDTSevere Thunderstorm WarningAPXCrawford, Ogemaw, Oscoda, Roscommon46 min
Aug 28, 3:14 PM EDTSpecial Marine WarningAPX89 min
Aug 28, 3:18 PM EDTSmall Craft AdvisoryAPX29 hr
Aug 28, 3:26 PM EDTBeach Hazards StatementAPXBenzie, Charlevoix, Emmet, Leelanau, Mackinac, Manistee29 hr
Aug 28, 4:01 PM EDTSevere Thunderstorm WarningAPXAlpena, Montmorency49 min
Aug 28, 4:17 PM EDTSevere Thunderstorm WarningAPXAlcona, Iosco, Ogemaw, Oscoda43 min
Aug 28, 4:30 PM EDTSpecial Marine WarningAPX2 hr
Aug 28, 4:52 PM EDTSevere Thunderstorm WarningAPXAlcona, Iosco56 min
Aug 28, 5:05 PM EDTSevere Thunderstorm WarningAPXArenac, Gladwin, Iosco, Ogemaw55 min
Aug 28, 5:18 PM EDTSpecial Marine WarningAPX117 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2021Every severe thunderstorm warning in 2021

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.