Jan 23 – Feb 15

Accumulation Phase

2nd coldest on record. Heavy snowfall without melting. Ice layer building at eaves.

Feb 16 – 18

Initial Warming

Temperatures begin moderating. First water intrusion signs. Freeze-thaw cycling begins.

Feb 19 – 21

Critical Damage Period

Temperatures reach 40–45°F. Catastrophic melting. Ice dam overwhelmed. Water entering structure.

Feb 22 – 24

Nor’easter Hernando

Named winter storm adds 6–8 inches. Blizzard warning issued. Roof sagging observed.

Feb 25+

Cold Return / Mitigation

Temperatures drop back. Mitigation ongoing. Documentation compiled.

Daily Temperature Range — Feb 14–25, 2026

The Feb 19–21 warming event (40–45°F) created catastrophic melting conditions. A 20+ degree swing in 48 hours is extreme and directly overwhelmed the existing ice dams.

Daily High
Daily Low
Average
Freezing Point

Seasonal Snowfall Accumulation

Cumulative snow load building through the winter season

* Jan 23–Feb 8 period was 2nd coldest on record for Bangor region

Ice Dam Formation Process

How extreme cold followed by rapid thaw creates catastrophic conditions

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Phase 1: Accumulation

Record cold temperatures prevented any melting. Snow and ice accumulated to 12+ inches on roof.

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Phase 2: Ice Dam Growth

Heat from house warmed roof, melting bottom snow. Water ran to cold eaves and refroze into solid ice dam.

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Phase 3: Rapid Thaw (Feb 19–21)

Temperatures reached 40–45°F. Massive meltwater overwhelmed ice dam. Water had no escape route.

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Phase 4: Water Intrusion

Trapped meltwater backed up under shingles, entered through electrical penetrations, windows, and vents.

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Phase 5: Structural Load

Nor’easter added 6–8 inches of new snow to ice-laden roof, causing visible roof sagging — structural failure.

Official NWS Weather Alerts Issued

DateAlert TypeIssuing AgencyArea
Feb 20Winter Storm WatchNWSSW Maine
Feb 22Blizzard WarningNWSMaine Coast
Feb 22Winter Storm WarningNWSInterior Maine
Feb 22Winter Weather AdvisoryNWSNorway/Rumford
Feb 22Coastal Flood WarningNWSYork County

⚠️ Why This Was NOT Gradual Damage

Specific Storm Events

The Feb 19–22 warming event and Feb 22–24 Nor’easter Hernando are specific, identifiable storm events — not gradual deterioration.

Sudden Onset

A 20+ degree temperature swing in 48 hours, followed by a named Nor’easter with official government warnings, represents sudden and extreme conditions.

Extraordinary Scale

Ice dams over 12 inches thick (not typical), roof sagging from weight, and 2nd coldest on record temperatures represent extraordinary, not routine, conditions.