Severe Weather Alert: Pennsylvania Braces for Storms, Flash Flooding, and Rapid Snowfall

PENNSYLVANIA, USA – March 16, 2026 – A Weather Impact Alert is in effect for Monday, particularly during the afternoon and evening, as a strong low-pressure system and cold front move across the region. The Stormtracker 16 team is forecasting a two-part weather event: initial storms followed by a rapid drop in temperatures and snowfall.

Timing of the Weather Event

1 AM – 12 PM: Preceding the Cold Front

Scattered showers and downpours are expected to begin early in the day, continuing into the morning. While not expected to reach severe levels, these downpours could slow down commutes, especially in valley areas. Wet roads and reduced visibility are likely, so drivers should expect delays. Despite the rain, temperatures will rise into the 60s, potentially reaching near 70 degrees in some parts of the Susquehanna Valley south and west.

12 PM – 6 PM: Ahead of the Cold Front

As the afternoon progresses, the weather will shift dramatically with the approach of the cold front. The front will traverse Central Pennsylvania just after lunchtime, intensifying the rain and increasing the risk of severe weather. The Storm Prediction Center has issued a Level 3 of 5 (Enhanced) risk for severe weather across most of the region, indicating conditions conducive to stronger storms. Pennsylvania Weather Radar provides real-time tracking.

6 PM – Midnight: Following Cold Front Passage

By late evening and overnight, temperatures will plummet 30-40°F, transitioning rain to snow. Accumulations are expected, particularly in elevated areas of Central Pennsylvania, with potential snowfall of 1 to 2 inches, and localized higher amounts. Live radar is available from Stormtracker 16.

Potential Impacts

Morning showers and downpours could cause visibility issues and slick roads, particularly in valley cities. Severe thunderstorms accompanying the cold front will bring gusty winds exceeding 60 mph, potentially causing property damage, downed trees, and power outages. Areas east of I-81 are most vulnerable to flash flooding, especially in areas with poor drainage.

There is a heightened risk of brief, spin-up tornadoes, particularly in southern counties like Schuylkill, Union, Snyder, and Northumberland. While generally short-lived, these tornadoes can be powerful and cause localized damage. The rapid temperature drop will cause any wet surfaces to freeze quickly, creating slippery conditions on roadways, cars, and metal objects.

Central PA’s higher elevations will likely see snowfall, with a coating to 2 inches in some spots. Travel on higher elevations or winding roads could grow dangerous late at night.

Be Prepared

• Morning Commute: Leave early and drive cautiously, especially in urban and valley areas. Ensure wipers are working and headlights are on.
• Monitor Updates: Stay informed about weather updates, especially during the afternoon.
• Secure Property: Anchor or bring indoors unsecured outdoor furniture and trash cans.
• Tornado Safety: If you live in a tornado-prone area, have a safe room or storm shelter ready.
• Evening/Night Travel: Wear warm layers and be cautious of slippery surfaces.
• Snow Removal: Keep a snow shovel handy if you live in higher elevations.
• Vehicle Preparation: Defrost car windows and clear snow buildup.

Roads will be slick, and accumulations are expected between a coating and 2 inches for most of Northeastern and Central PA. Areas that could exceed that are elevations in the Poconos/northern tier.

Useful Links

• WNEP Stormtracker 16 Live Radar
• Stormtracker 16 on YouTube
• AccuWeather Pennsylvania Radar
• Newswatch 16 Sunday Snow Update