Alert archive / Massachusetts / Heat Advisories
Heat Advisories in Massachusetts, 2021
18 heat advisories in 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of heat advisories reaches back to 2005.
Heat Advisories by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Heat Advisories
- 18
- Busiest month
- August9 heat advisories
- Busiest day
- August 10, 20212 heat advisories
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 3:29 AM EDT | Heat Advisory | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more | 64 hr |
| Jun 7, 3:12 PM EDT | Heat Advisory | BOX | Essex, Norfolk, Plymouth, Worcester | 28 hr |
| Jun 9, 3:12 AM EDT | Heat Advisory | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 17 hr |
| Jun 26, 3:15 PM EDT | Heat Advisory | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 4 days |
| Jun 27, 2:54 PM EDT | Heat Advisory | ALY | Berkshire | 29 hr |
| Jun 28, 2:19 PM EDT | Heat Advisory | ALY | Berkshire | 30 hr |
| Jun 29, 3:52 PM EDT | Heat Advisory | ALY | Berkshire | 27 hr |
| Jul 6, 3:33 AM EDT | Heat Advisory | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 39 hr |
| Jul 16, 9:38 AM EDT | Heat Advisory | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk | 9 hr |
| Aug 10, 3:22 AM EDT | Heat Advisory | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 41 hr |
| Aug 10, 3:30 AM EDT | Heat Advisory | ALY | Berkshire | 41 hr |
| Aug 11, 3:28 PM EDT | Heat Advisory | BOX | Bristol, Franklin, Hampden, Hampshire, Plymouth | 29 hr |
| Aug 11, 4:00 PM EDT | Heat Advisory | ALY | Berkshire | 28 hr |
| Aug 12, 2:53 PM EDT | Heat Advisory | BOX | Barnstable, Bristol, Essex, Franklin, Hampden, Hampshire and 5 more | 29 hr |
| Aug 12, 4:00 PM EDT | Heat Advisory | ALY | Berkshire | 28 hr |
| Aug 25, 2:55 PM EDT | Heat Advisory | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 29 hr |
| Aug 25, 3:14 PM EDT | Heat Advisory | ALY | Berkshire | 29 hr |
| Aug 26, 3:44 PM EDT | Heat Advisory | BOX | Bristol, Plymouth | 27 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.