Weather Alerts Map

Cambridge weather alerts

There are no active weather alerts for Cambridge, MA right now.

The National Weather Service issues alerts for Cambridge as part of Middlesex County.

Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS

Map data: NWS, OpenFreeMap, OpenStreetMap

Tornado history within 25 miles of Cambridge

47 tornadoes have been recorded within 25 miles of Cambridge since 1950, killing 1 people and injuring 35. The most recent was on September 6, 2025 (rated EF0).

EF0: 16EF016EF1: 21EF121EF2: 8EF28EF3: 2EF32EF4: 0EF4EF5: 0EF5
Tornadoes by (E)F rating

Strongest tornadoes within 25 miles of Cambridge

DateRatingCountyPath lengthWidthDeathsInjuries
June 9, 1953F3Worcester County28 mi667 yd017
September 29, 1974F3Middlesex County0.1 mi33 yd01
August 21, 1951F2Essex County9.3 mi100 yd00
July 21, 1972F2Middlesex County7.6 mi37 yd04
August 28, 1965F2Middlesex County2 mi10 yd00

Most recent tornadoes

DateRatingCountyPath lengthWidthDeathsInjuries
September 6, 2025EF0Middlesex County2.4 mi100 yd00
August 18, 2023EF1Norfolk County0.4 mi100 yd00
August 18, 2023EF0Norfolk County0.1 mi35 yd00
July 29, 2023EF1Norfolk County0.2 mi25 yd00
August 23, 2021EF0Middlesex County0.1 mi50 yd00

Massachusetts tornado history and map →

How often alerts are issued for Middlesex County

Alert type2016–2025Last issued
Severe Thunderstorm Warning251August 8, 2026
Winter Weather Advisory128March 5, 2026
Flood Warning121September 27, 2026
Wind Advisory121September 25, 2026
Flood Watch63September 26, 2026
Flash Flood Warning62August 3, 2026
Dense Fog Advisory61March 31, 2025
Heat Advisory50August 6, 2026
Winter Storm Warning49February 22, 2026
Winter Storm Watch48February 22, 2026

Full Middlesex County alert history →

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