Alert archive / Maryland / Heat Advisories
Heat Advisories in Maryland, 2017
12 heat advisories in 2017. 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 2017. Tap one for its archive.
- Heat Advisories
- 12
- Busiest month
- July11 heat advisories
- Busiest day
- July 12, 20173 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 |
|---|---|---|---|---|
| Jul 12, 3:05 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, Howard and 4 more | 28 hr |
| Jul 12, 3:10 PM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 29 hr |
| Jul 12, 3:40 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Jul 14, 12:06 PM EDT | Heat Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 7 hr |
| Jul 14, 12:12 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Charles, Howard, Montgomery, Prince George's and 1 more | 6 hr |
| Jul 20, 3:21 AM EDT | Heat Advisory | LWX | Allegany, Anne Arundel, Baltimore, Calvert, Carroll, Charles and 8 more | 16 hr |
| Jul 20, 3:43 AM EDT | Heat Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 15 hr |
| Jul 20, 3:46 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Jul 20, 8:30 PM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Harford, Howard and 4 more | 23 hr |
| Jul 21, 3:51 PM EDT | Heat Advisory | AKQ | Dorchester, Somerset, Wicomico, Worcester | 28 hr |
| Jul 22, 3:09 AM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Calvert, Charles, Howard, Montgomery and 3 more | 16 hr |
| Aug 18, 3:42 AM EDT | Heat Advisory | LWX | Anne Arundel, Baltimore, Charles, Howard, Montgomery, Prince George's and 1 more | 15 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Anne Arundel County6
- Baltimore County6
- Charles County6
- Howard County6
- Montgomery County6
- Prince George's County6
- City of Baltimore6
- Calvert County4
- Saint Mary's County4
- Harford County3
- Caroline County3
- Kent County3
- Queen Anne's County3
- Talbot County3
- Dorchester County3
- Somerset County3
- Wicomico County3
- Worcester County3
- Cecil County2
- Allegany County1
- Carroll County1
- Frederick County1
- Washington County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20162018
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. Warning verification from the Mesonet's Cow. Rebuilt daily.