Sunrise 6:29 AM   Sunset 8:40 PM Moonrise 10:02 PM   Moonset 5:59 AM

  Print   HELP   Reset   Save   Recall

LSZ322 /o.exp.kapx.ma.w.0003.000000t0000z-240423t1915z/ 312 Pm Edt Tue Apr 23 2024
.the special marine warning will expire at 315 pm edt - .
the affected areas were - . St. Marys river point iroquois to e. Potagannissing bay - .
the Thunderstorms have weakened and no longer pose a significant threat to boaters.
&&
lat - .lon 4652 8417 4653 8413 4650 8411 4644 8414 4637 8414 4633 8411 4629 8412 4628 8424 4635 8425 4645 8431 4649 8428 4650 8425 4654 8420 time - .mot - .loc 1912z 281deg 18kt 4639 8377 4632 8443

LSZ300
No data

FXUS63 KAPX 251727 AFDAPX

Area Forecast Discussion National Weather Service Gaylord MI 127 PM EDT Thu Apr 25 2024

KEY MESSAGES

- Quiet weather continues today and tonight.

- Dry conditions continue this Friday before showers and thunderstorms move in late.

- Showers and storms continue at times through the weekend into Monday -- including potential for severe storms on Saturday.

SHORT TERM /THROUGH FRIDAY/
Pattern Synopsis:

Troughing continues to pivot from the northeast CONUS over the Atlantic today as longwave ridging slides eastward over the Mississippi Valley/Great Lakes. Subsidence aloft provided at the inflection point of these features will keep building surface high pressure currently centered overhead gradually eastward today into tonight. Meanwhile, a shortwave trough looks to eject over the southern Great Plains later this evening and tonight, providing ample divergence aloft to support lee cyclogenesis over western Kansas/Nebraska.

Forecast Details:

Quiet weather continues today and tonight -- Cold temperatures this morning will quickly warm up after sunrise with cloud-free skies in store through today and tonight. Highs across the area look to climb into the low to mid 50s for most of northern Michigan, aside from those against the lakeshores that may stay in the upper 40s.
Light/calm winds are also anticipated today with lake breezes pushing inland this afternoon and evening. Southeast winds look to gradually strengthen beginning late tonight into Friday morning with overnight lows dipping back into the upper 20s and 30s.

LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/
Pattern Synopsis and Forecast:

Midlevel shortwave troughing currently over the central CONUS will breifly bring a warmer air mass with surface high pressure to the Great Lakes region this Friday. Midlevel shortwave troughing currently over the Pacific near southern California will progress across the country and return a more active weather pattern at the start of the weekend.

Aforementioned troughing will be centered over the Central Plains at the start of the forecast period. The trough and surface based low pressure will slowly move across the midwest this weekend into early next week, while simultaneously weakening, delivering rounds of thunderstorms and showers through Monday before a more zonal flow pattern takes over by next Tuesday.

Primary Forecast Concerns/Key Messages:

Dry conditions continue this Friday before showers and thunderstorms move in late: Friday starts off dry. High pressure continues to deliver one more day of pleasant weather before a weakening cold front delivers precipitation to parts of the CWA as soon as Friday night. Rainfall will need to saturate the environment from a top down method, so overcoming dry air can delay measurable precipitation until the 12Z timeframe.
Aforementioned low pressure will be weakening as it moves across the Upper Midwest, keeping rainfall pretty low, but CAPE values in the 1500-1800 range and SRH values approaching the 300s will keep the potential of severe weather Saturday afternoon/evening a real possibility. SPC has upgraded the northern lower penisula to a slight risk of severe weather and WPC keeps Michigan under no risk of excessive rainfall, but a general quarter to half inch can be expected through Saturday.

Precipitation will continues at times through the weekend into Monday: Multiple waves of showers and thunderstorms will persist this weekend as the first trough diminishes and is quickly replaced by another. Showers and storms will continue across the Great Lakes region through Monday. Quiet weather will settle into the region for the Tuesday/Wednesday timeframe as a more zonal flow pattern over the CONUS returns surface high pressure to the CWA for the end of April.

AVIATION /18Z TAFS THROUGH 18Z FRIDAY/
High pressure in the area today with generally clear skies...though a few high based cu has been developing over NE Lower near APN, Y31 in the last couple hours. Won't be impossible to see these develop elsewhere...but for now anticipate skies remain clear at TAF sites into Friday morning. Winds today largely 10-15kts from the southeast...except lake breeze has developed at mbL and TVC, with onshore winds developing accordingly. Expecting light winds tonight...with land breezes again, esp at mbL and perhaps APN. Winds strengthen toward end of TAF period, and esp beyond.

APX WATCHES/WARNINGS/ADVISORIES
MI...None.
MARINE...None.

toggle option: (graph/table)

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Gaylord, MI,