Winter Storms risk in Pennsylvania

Winter Storm Risk in Pennsylvania

Pennsylvania's location in the Northeast makes it highly susceptible to winter storms, earning a risk rating of 4 out of 5. The state experiences a mix of lake-effect snow, nor'easters, and ice storms that can bring significant snow accumulations, freezing rain, and bitter cold. Winter storms typically occur from November through March, with January and February being the peak months for heavy snowfall.

Geographically, the northwestern counties near Lake Erie receive some of the heaviest lake-effect snow, with areas like Erie often seeing several feet of snow in a single event. The central and northeastern regions, including the Poconos and higher elevations of the Allegheny Plateau, also experience substantial snowfall. Southeastern Pennsylvania, including Philadelphia and its suburbs, may see less snow but is still vulnerable to ice storms and mixed precipitation, which can be just as damaging. The mountainous terrain across the state can also enhance snowfall and create localized hazardous conditions.

Winter storms in Pennsylvania are not just about snow; they often bring freezing rain, sleet, and strong winds. These elements can knock down trees and power lines, leading to widespread and sometimes prolonged power outages. The Pennsylvania Emergency Management Agency emphasizes that residents should be prepared for the possibility of being snowed in or losing utilities for multiple days, especially in rural areas where response times may be longer.

How it Affects Homes

Winter storms can cause a range of property damage to Pennsylvania homes. The weight of heavy snow and ice is a primary concern. Roofs, especially those with flat or low slopes, can collapse under the stress of accumulated snow and ice dams. Ice dams form when melted snow refreezes at the eaves, preventing proper drainage and causing water to back up under shingles, leading to leaks and water damage inside walls and ceilings.

Freezing temperatures can also cause pipes to freeze and burst, leading to significant water damage. Homes with inadequate insulation or unheated basements, crawl spaces, and attics are particularly vulnerable. The cost of repairing water damage from burst pipes can be substantial, and in severe cases, homeowners may need to replace flooring, drywall, and insulation.

Insurance considerations are important. Standard homeowners insurance policies typically cover damage from wind, hail, and the weight of ice and snow, but they do not cover flood damage, which can occur from melted snow and ice jams. Additionally, some policies have separate deductibles for wind and hail, which may apply during winter storms. Ready.gov recommends reviewing your insurance policy before the season and considering flood insurance if your home is in a flood-prone area. The CDC also advises that homeowners maintain a sufficient supply of heating fuel and have emergency heating equipment ready, as loss of heat can cause secondary damage like frozen pipes.

How to Prepare Your Home

Taking proactive steps can significantly reduce winter storm damage and keep your family safe. Follow these concrete mitigation steps:

• Insulate and seal: Add insulation to attics, walls, and crawl spaces, and caulk or weatherstrip windows and doors to keep cold air out and warm air in.
• Protect pipes: Wrap exposed pipes with insulation or heat tape, and open cabinet doors under sinks to allow warm air to circulate. Let faucets drip slightly during extreme cold to prevent freezing.
• Maintain your roof: Clean gutters before winter to allow melted snow to drain. If heavy snow accumulates, use a roof rake to remove snow safely, or hire a professional to prevent ice dams and roof stress.
• Prepare an emergency kit: Include flashlights, batteries, a battery-powered radio, blankets, non-perishable food, water, and a first aid kit. Store at least a three-day supply, and include extra medications for family members.
• Have heating alternatives: If you use a fireplace or wood stove, ensure it is clean and in good working order. Install a carbon monoxide detector and never use generators, grills, or camp stoves indoors due to carbon monoxide poisoning risk.
• Trim trees: Cut dead or weak branches that could fall under the weight of ice or snow and damage your home or power lines.
• Know your shut-off valves: Locate your main water shut-off valve so you can turn off water quickly if a pipe bursts.

These steps can be done in advance of the season and during winter weather. The National Weather Service advises staying informed by checking local forecasts and heeding winter storm warnings. Simple preparations now can prevent costly repairs later.

Frequently Asked Questions

Does homeowners insurance cover damage from winter storms in Pennsylvania?

Most standard homeowners insurance policies cover damage from the weight of snow, ice, and freezing rain, as well as water damage resulting from a burst pipe, provided the pipe burst was sudden and accidental. However, flood damage from melting snow or ice jams is not covered by standard policies and requires separate flood insurance. Check your policy to understand deductibles and coverage limits, and contact your insurer with any questions.

How can I prevent ice dams on my roof?

Ice dams form when heat from the attic melts snow on the roof, which then refreezes at the colder eaves. To prevent them, keep your attic well-insulated and ventilated to maintain a cold roof temperature. Clear snow from the eaves with a roof rake after each snowfall, and clean gutters to allow proper drainage. Installing heat cables along the roofline can also help, but ensure they are installed safely and according to manufacturer instructions.

What should I do if the power goes out during a winter storm?

First, keep refrigerator and freezer doors closed to preserve food. Use flashlights instead of candles to avoid fire risk. If you use a portable generator, operate it outdoors and away from windows, never indoors, to prevent carbon monoxide poisoning. Dress in layers and use blankets to stay warm, and go to a public shelter if you lose heat for an extended period. Turn off major appliances to prevent power surges when electricity is restored.

Official Resources

• Pennsylvania Emergency Management Agency
• National Weather Service – Winter Weather Safety
• Ready.gov – Winter Weather
• CDC – Winter Weather