Allen, MD (ZIP 21810) has a moderate disaster history with 13 recorded events. These include 5 blizzards, 3 hailstorms, and 3 tornadoes. Total documented property damage amounts to $6.2M.
The dominant hazard type for Allen is blizzards, with 5 recorded events making up 38% of the area's disaster history. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for winter storm events here is 5/5 (extreme). Winter storm events have caused a combined $5M in documented property damage. The most recent recorded blizzard occurred on Feb 19, 2025.
Allen has experienced 3 hailstorms on record. The most recent recorded hailstorm occurred on Jun 4, 2008.
Allen has experienced 3 tornadoes on record. Tornado-related events have caused a combined $800K in documented property damage. The most recent recorded tornado occurred on Aug 7, 2017.
Allen has experienced 2 floods on record. Of these, 2 (100%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for flood-related events here is 5/5 (extreme). Flood-related events have caused a combined $400K in documented property damage. The most recent recorded flood occurred on Oct 28, 2021.
The most significant disaster event on record for Allen was Ice Storm on Dec 23, 1998, which caused $5M in property damage. Another major event was EF1 Tornado (Aug 7, 2017), causing $750K in damages.
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Based on federal and state records, ZIP code 21810 has experienced 13 natural disaster events. The hazard types affecting this area include blizzards (5 events), hailstorms (3 events), tornadoes (3 events), and floods (2 events). The primary hazard is blizzards, which account for 38% of all recorded events.
Blizzards are the most frequently recorded hazard in Allen, MD, with 5 events documented. These events have caused a combined $5M in property damage.
Yes, Allen (ZIP 21810) has 2 recorded flood events. These floods have caused $400K in total property damage. The most recent flood on record occurred on Oct 28, 2021.
Allen has 3 recorded tornado events in the historical record. Total property damage from tornadoes in this area is $800K. The most recent tornado was recorded on Aug 7, 2017.
The most damaging natural disaster on record for ZIP code 21810 was Ice Storm, which occurred on Dec 23, 1998. This event caused $5M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $6.2M in property damage in the Allen, MD area (ZIP 21810). This figure is based on historical records from FEMA, NOAA Storm Events Database, and USGS, and covers events from the 1950s through the present. Actual damages may be higher, as not all events have complete damage assessments.
Data sourced from FEMA (disaster declarations, NFIP flood claims), NOAA Storm Events Database, USGS Earthquake Hazards Program, and NIFC wildfire records. Historical coverage varies by source, with most records beginning in the 1950s–1970s. Full methodology →