Update: Part of Pennsylvania under a snow squall warning Wednesday evening

On Wednesday at 7:51 p.m. an updated snow squall warning was issued by the National Weather Service in effect until 8:15 p.m. for Bedford, Blair and Huntingdon counties.

“At 7:50 p.m., a dangerous snow squall was located along a line extending from Altoona to New Enterprise, moving east at 35 mph,” according to the weather service. “Travel will become difficult and potentially dangerous within minutes.”

Locations impacted by the warning include Altoona, Hollidaysburg, Roaring Spring, New Enterprise, Martinsburg, Lakemont, Bellwood, Claysburg, Williamsburg, Duncansville, Dudley and Horseshoe Curve. This includes the following highways: Route 22 from near Gallitzin to east of Canoe Creek State Park. Route 220 from near King on I-99 to near Bellwood on I-99.

The weather service states, “Wet roadways will quickly freeze. Black ice will cause roads, bridges, and overpasses to become slick and dangerous. Slow down and be prepared for a sudden loss of traction. Slow Down! Rapid changes in visibility and road conditions are expected with this dangerous snow squall. Be alert for sudden whiteout conditions.”

Snow squalls: Safety protocols and prevention tips

What are snow squalls?

Snow squalls are brief but intense winter weather events often linked to strong cold fronts. They can cause sudden white-out conditions and icy roads within minutes, even if there’s no major winter storm happening. While they usually last less than an hour and might only result in minor snow accumulation, they pose significant risks to drivers due to reduced visibility, gusty winds, and rapidly falling temperatures. These conditions have historically led to deadly traffic accidents.

What is the difference between a snow squall and a snowstorm?

The main distinction between a snow squall and a snowstorm lies in their duration and intensity. Snow squalls are typically brief but intense, lasting around 30-60 minutes. In contrast, a snowstorm can stretch over several hours or even days

Snow squall warnings

Snow squall warnings are rapidly issued for specific areas, much like tornado or severe thunderstorm warnings. They offer crucial, localized information aimed at saving lives. If an alert for a snow squall is issued in your area, it’s best to postpone or avoid driving until the squall moves on.

Actions to take

In response to a snow squall warning, individuals should follow the guidelines provided by the weather service, which encompass the following key actions:

Avoid or delay travel: If a snow squall warning is issued for your vicinity, it’s advisable to postpone or refrain from motor travel until the squall has passed through your area. Highways and roads are particularly hazardous during snow squalls.

Reduce speed and increase visibility: If you find yourself already on the road during a snow squall, prioritize safety by reducing your speed. Turn on both your headlights and hazard lights to enhance visibility for yourself and other drivers.

Maintain safe distance: Ensure there is ample distance between your vehicle and the one ahead of you. This precaution is essential to account for reduced visibility and the potential unpredictability of road conditions during a squall.

Avoid abrupt braking: In slippery and icy conditions, sudden braking can lead to loss of vehicle control. It’s safer to slow down gradually to minimize the risk of skidding or causing a chain reaction crash.

Winter weather safety tips: For tips on how to stay safe before, during, and after winter weather, visit the weather service Winter Weather Safety page.

Prepare your vehicle: Prior to traveling, take steps to prepare your vehicle for winter conditions by inspecting tires, brakes, and lights, and confirming all fluids are at appropriate levels. A properly cared-for vehicle is more prepared to tackle the obstacles of winter driving.

Essential items for your car’s emergency kit: Always have a well-prepared emergency kit in your vehicle containing crucial supplies like blankets, non-perishable food, water, a flashlight, and a first-aid kit. Additionally, include jumper cables, flares or a reflective triangle, an ice scraper, a car cell phone charger, a map, and cat litter or sand for improved tire traction. These items can be invaluable should you encounter an unexpected breakdown or emergency while on the road.

In conclusion, when faced with a snow squall warning, prioritizing personal safety and adhering to the weather service recommendations can significantly mitigate risks. By understanding, preparing, and staying vigilant, individuals can navigate these winter hazards with greater confidence and security.

Advance Local Weather Alerts is a service provided by United Robots, which uses machine learning to compile the latest data from the National Weather Service.