Snow Arrives Late Tonight for Eastern Newfoundland — Burst of Heavy Rates Possible
Snow is set to return to eastern Newfoundland late tonight, with the Avalon Peninsula — including the St. John’s metro — seeing flakes arrive overnight into early Friday morning. While this isn’t shaping up to be a major storm, it’s the kind of system that can still cause morning disruptions, especially during the heaviest burst of snow.
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⏱️ Timing
Late Evening → Midnight: Snow pushes into the southern Avalon and South Shore
Overnight → Early Morning: Snow expands across the Avalon
Peak Impact: ~3 AM to 9 AM
By Midday Friday: Snow tapers off and ends
❄️ Snowfall Rates
For a few hours early Friday morning, snowfall rates may briefly become intense:
Peak rates: 2–3 cm per hour
Typical rates: 1–2 cm per hour
That heavier window lines up almost perfectly with the morning commute, so even though this isn’t a blockbuster system, travel conditions could deteriorate quickly for a time.
📊 Expected Snowfall
Avalon / St. John’s Metro: 7–15 cm
Higher amounts: Southern Shore & SE Avalon
Lower amounts: West of Trinity & Placentia Bays
There is some guidance suggesting totals could push closer to 20 cm, but right now that’s the less likely scenario — something to watch, not the forecast.
🧠 Why Totals Might Overperform
This snow will likely be on the fluffier side, meaning:
Lower density
Higher accumulation potential
Rates may look modest… but stack up faster than expected
That’s why a system with “only” 1–2 cm/hr rates can still deliver a solid snowfall.
🌡️ Temperatures
Eastern NL Friday: -1°C to -3°C
Cold enough for efficient accumulation
Little impact elsewhere across NL & Labrador
⚠️ What to Expect
Slippery roads for the morning commute
Reduced visibility during heavier bursts
Quick accumulation before sunrise
Again — not a major storm — but poor timing + brief heavy rates = travel headaches.
👀 Looking Ahead
Weekend: Another system brings snow to western NL & SE Labrador (10–20 cm possible)
Early Next Week: Watching a potential low bringing rain (east) and snow (central/west)
And despite the arrival of spring…
…it’s not going to feel like it.
I’ll have my next update posted tomorrow morning!
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Thanks for update Eddie!