PITTSBURGH (KDKA) – There’s a lot to unpack with today’s weather, so it’s good that they give me a place to blog every day.
- Wind Alert is in effect from 5:00 p.m. to 5:00 a.m. with gusts of up to 50 mph as the cool front slides through.
- Flooding (countywide) Provision in effect from 10:00 a.m. to 7:00 a.m. Friday. Isolated river flooding is possible due to significant snow and ice remaining on the ground for locations within the clock area.
- Flood Precautions on Allegheny at CW Bill Dam. The river peak is forecast at 17.3′. Flooding of several basements in New Kensington began at 5:07 p.m. Navigation paused at 18′.
Alarm: Today and Tomorrow are the first Weather Alert Days due to high winds and potential river flooding
Awareness: Today will be the first of three heavy rains in the next 10 days and four in the next two weeks. This is normal at this time of year… (maybe about a month earlier too)
We have issued our first Weather Day warning for today. We, meteorologists at KDKA, do this as a way to focus on the times when the weather will affect you the most. We hope that the information we provide and the particular changes to our weather maps will help inform you of potential risks in the hope it keeps you and those you love. and safe care.
So with that, let’s talk about today.
Overall, today’s active weather won’t affect everyone, but for those affected, it could very well be a big deal. Places like New Kensington, along the banks of the Allegheny River.
Allegheny is expected to rise and peak around 17.3′ tomorrow morning. At 17.7′, several basements in New Kensington homes began to flood. At 6 p.m., all river traffic across the dam was shut down. The flood warning is in effect until Friday afternoon.
There is a broader area flood precaution for locations starting in Butler and Beaver counties and extending north. This is where the snow cover is still quite high and the ice is still abundant in the rivers. With the recent warming weather coupled with about 1 inch of rain, these places will be vulnerable to ice congestion causing flooding in places you wouldn’t normally see.
While they will deal with river flooding to the north, it is the high wind speeds they will deal with the southeast. Winds can blow as high as 50mph overnight and in places like Westmoreland, Fayette, Somerset and Bedford counties.
When true to your forecast, today will be mild with a peak near 60. Rain coming after 9:00 am this morning, lasting for the rest of the day.
Today could be very wild as we should see a brief potential thunderstorm around 8pm with temperatures dwindling after the storms.
By 2-3 am, the remaining rains will turn to a mix of winter and snow. The good news is that most mornings will be above 32 degrees. This will limit the impact on regional drivers when encountering spills.
Looking forward, we’ll see another snowfall on Saturday as we sweep a moderate amount of snow north of us.
Sunday should be dry and sunny with near-seasonal average temperatures for this time of year.
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https://pittsburgh.cbslocal.com/2022/02/17/wind-advisory-and-flood-watch-in-place/ Wind and Flood Advisory Meters Released Thursday – CBS Pittsburgh