Frost Is In The Forecast Again Tonight, Along With A Lovely Tuesday And A Rainy/Windy Wednesday
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Just when you think summer is finally getting comfortable, another frost advisory arrives.
Much of southern, central, interior and western Newfoundland is under a Frost Advisory tonight as clear skies, light winds and cool temperatures set the stage for frost formation by Tuesday morning. While forecast lows are generally between 1°C and 6°C, that's more than cold enough for frost to develop in low-lying areas and sheltered locations.
The good news is that the chilly start won't last long.
Tuesday is shaping up to be a great day across Newfoundland. Sunshine will dominate the forecast for most areas, and temperatures will rebound quickly through the day. St. John's is expected to climb close to 20°C, while parts of central Newfoundland could reach the lower to middle 20s. Even the Northern Peninsula should make it into the mid-teens.
Labrador will once again be split between warm inland temperatures and much cooler conditions along the coast. Goose Bay reached 25°C on Monday afternoon, its warmest day of the year so far, and temperatures near 20°C are expected again Tuesday across western and central Labrador. Along the coast, however, highs will struggle through the single digits thanks to chilly marine air.
Not everyone in Labrador will stay dry Tuesday afternoon.
Scattered showers and thunderstorms are expected to develop along and south of the Trans-Labrador Highway beginning around midday. Some storms may linger over the same area for an extended period of time, producing locally heavy rainfall, gusty winds and frequent lightning.
While Tuesday looks beautiful, it's also setting the stage for our next significant weather-maker.
Rain will begin spreading into Newfoundland late Tuesday night and will already be falling across much of the Island by Wednesday morning. A strengthening area of low pressure tracking through the region is expected to bring widespread rain, gusty winds and a rather miserable day for many areas.
Current projections suggest rainfall totals of 25 to 50 mm from the Corner Brook area eastward through central, southern and eastern Newfoundland. The highest totals are expected on the Burin and Avalon Peninsulas, where some locations may approach or exceed 50 mm by Thursday morning.
Wind will also become a factor. Gusts of 50 to 70 km/h are likely Wednesday, particularly along exposed coastal areas. The southwest coast could see even stronger winds, and it would not be surprising to see a Wreckhouse Wind Warning issued before the event begins.
Unfortunately, the low is expected to slow down as it exits the region. That means rain, showers and breezy conditions may linger into part of Thursday before gradual improvement arrives later in the day.
If you're looking for warmth afterward, you'll have to be patient.
While Labrador continues to enjoy summer-like temperatures for much of the week, Newfoundland's forecast remains stubbornly cool. The weekend looks reasonable, but temperatures are expected to remain below seasonal averages. Longer-range guidance still hints at a more significant warmup arriving after the end of June, but for now summer remains frustratingly delayed across much of the Island.
The next forecast update will be tomorrow morning! Check back for updates!
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