Alert archive / Maine

Weather alerts in Oxford County, Maine

3,562 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Oxford County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
3,562
Warnings
1,178
Watches
449
Advisories
1,091
Busiest year
2013230 alerts
Average year
87over 41 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

From 2008 to 2025, 63% of tornado reports in Oxford County fell inside a tornado warning issued on average 10 minutes before, and 58% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008110%0
20094250%367%7 min
2010110%1100%4 min
20112150%1100%22 min
201410100%0
201610100%0
20174250%250%13 min
201810100%0
2020110%0
202110100%0
202220100%0
2023010%
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008482254%1385%25 min
2009402343%2291%16 min
201018856%8100%40 min
2011524317%3580%27 min
2012241442%989%11 min
2013484017%25100%17 min
2014272122%17100%22 min
2015241825%1681%22 min
2016261927%1191%19 min
2017272122%1392%21 min
2018151220%1283%23 min
20199456%5100%18 min
2020372922%1493%22 min
2021201050%475%29 min
2022311939%1794%16 min
202310640%475%5 min
202413746%786%9 min
20259722%4100%30 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20083233%1100%4 min
20093167%1100%153 min
20103167%1100%71 min
2011330%3100%145 min
201250100%10%
20138538%4100%144 min
20149633%2100%77 min
201510100%0
2016220%2100%40 min
20176517%1292%124 min
201830100%0
202030100%0
202110100%0
202210100%0
2023161413%4689%184 min
20246267%1100%118 min
2025110%250%24 min

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Aug 28, 3:18 PM EDTSevere Thunderstorm WarningGYX42 min
Aug 27, 6:57 PM EDTSevere Thunderstorm WarningGYX48 min
Aug 8, 6:13 PM EDTSevere Thunderstorm WarningGYX32 min
Jul 16, 1:21 PM EDTSevere Thunderstorm WarningGYX39 min
Jul 16, 12:40 PM EDTSevere Thunderstorm WarningGYX35 min
Jul 14, 10:21 PM EDTSevere Thunderstorm WarningGYX17 min
Jul 14, 9:51 PM EDTSevere Thunderstorm WarningGYX39 min
Jul 9, 7:51 PM EDTSevere Thunderstorm WarningGYX36 min
Jun 30, 1:57 PM EDTExtreme Heat WarningGYX3 days
Jun 26, 3:58 PM EDTSevere Thunderstorm WarningGYX62 min
Jun 18, 7:51 PM EDTRiver Flood WarningGYX3 hr
Jun 18, 4:21 PM EDTSevere Thunderstorm WarningGYX54 min

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.