Severe thunderstorm warnings were issued for parts of Western Pennsylvania on Wednesday afternoon but have since expired.
Significant hail, large enough to coat the ground, was reported in areas like Sewickley, Allegheny County.
Overnight rain is expected to continue into early Friday before tapering off.
Further rounds of rain and scattered storms are predicted for Saturday, some potentially severe with gusty winds.
A risk of localized flooding exists, particularly for creeks and streams on Saturday, with rivers potentially rising by Sunday.
Colder air moving in late Sunday could result in rain ending as wet snowflakes.
Why this matters: Severe weather poses risks to safety and property. Repeated rainfall increases the likelihood of flooding, which can disrupt travel and damage infrastructure. Staying informed about forecasts and warnings is crucial.
Western Pennsylvania faced a bout of severe weather characterized by strong thunderstorms and notable hail accumulation. Reports from Wednesday highlighted significant weather events, including hail covering the ground in Sewickley. Although the official severe thunderstorm warnings concluded by the afternoon, the weather system's impact is forecast to linger.
Forecasters predict ongoing rain overnight Wednesday into Thursday, transitioning to showers by Friday morning. While Friday afternoon might see an isolated shower, particularly relevant for outdoor events like the Pirates game, significant dry periods are expected.
However, the respite appears brief. Another weather system is anticipated early Saturday morning and again in the afternoon, bringing more rain and the potential for strong to severe thunderstorms accompanied by gusty winds. The cumulative effect of this persistent rainfall raises concerns about flooding, especially impacting smaller waterways like creeks and streams by Saturday. While widespread river flooding isn't the primary expectation currently, river levels are expected to rise by Sunday. Residents in flood-prone areas should monitor conditions closely.
The weather pattern concludes with a shift towards colder temperatures late Sunday night, potentially causing the final precipitation to fall as wet snowflakes.
Stay Informed: Monitor local weather forecasts and alerts via trusted sources like the National Weather Service or local news apps (e.g., WTAE, WPXI). Enable weather alerts on your phone.
Secure Outdoor Items: Bring in or secure outdoor furniture, trash cans, or other items that could be blown away by strong winds.
Check Drainage: Ensure gutters and storm drains are clear of debris to help prevent localized flooding.
Travel Safely: Avoid driving through flooded roadways. Turn around, don't drown. Be aware of potential delays or hazards caused by severe weather.
Prepare for Power Outages: Charge electronic devices and have flashlights and batteries ready in case of power loss.
Residents in low-lying or flood-prone areas near creeks, streams, and rivers.
Commuters and travelers, due to potential road closures or hazardous driving conditions.
Homeowners, particularly those with basements susceptible to flooding or property vulnerable to wind/hail damage.
Anyone planning outdoor activities over the weekend.
Q: Are the severe thunderstorm warnings still active?
A: No, the warnings issued on Wednesday afternoon have expired, but the potential for severe weather returns on Saturday.
Q: What is the main risk going into the weekend?
A: The primary risks are further rounds of potentially severe thunderstorms on Saturday and localized flooding due to repeated rainfall.
Q: Is major river flooding expected?
A: Widespread major river flooding is not the main forecast concern at this time, but rivers are expected to rise, and localized flooding of smaller waterways is possible.
The immediate severe threat from Wednesday has passed, but unsettled weather continues.
Be prepared for more rain and potentially strong storms on Saturday.
Monitor local water levels if you live in an area prone to flooding.
Have ways to receive weather alerts throughout the weekend.
How do you prepare for severe weather events in your area? Do you think Pittsburgh will see significant flooding this weekend? Let us know your thoughts!
*Share this article with others who need to stay ahead of this trend!*
Pittsburgh Post-Gazette: Severe thunderstorms possible overnight across Pittsburgh after large hail pummeled parts of the region target="_blank"
WTAE: Severe thunderstorm warning issued in Western Pennsylvania target="_blank" (Note: Original warning expired, link for context)
WPXI: Rain continues overnight, dry start to Friday target="_blank"
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