Alert archive / Maine / Franklin County

Weather alerts in Franklin County, Maine, 2009

103 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Franklin County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
103
Warnings
31
Watches
19
Advisories
39
Busiest month
June21 alerts
Busiest day
June 26, 200913 alerts

Over time

By month

Warning verification

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

1 of 1 tornado warnings covering Franklin County in 2009 had a tornado report inside them.

Franklin County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings110%0
Severe thunderstorm warnings16663%475%24 min
Flash flood warnings3167%0

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Gray, ME: tornado warnings6267%367%7 min
NWS Gray, ME: severe thunderstorm warnings1175156%8587%22 min
NWS Gray, ME: flash flood warnings15567%978%108 min

An office's figures cover every county it serves, including across state lines.

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.

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.

IssuedProductOfficeLasted
Jan 1, 10:04 AM ESTWind Chill AdvisoryGYX3 hr
Jan 6, 3:26 AM ESTWinter Storm WatchGYX14 hr
Jan 6, 5:10 PM ESTWinter Storm WarningGYX34 hr
Jan 7, 11:39 AM ESTMesoscale DiscussionSPC6 hr
Jan 14, 10:41 AM ESTWind Chill AdvisoryGYX7 hr
Jan 17, 3:15 AM ESTWinter Storm WatchGYX12 hr
Jan 17, 3:00 PM ESTWinter Storm WarningGYX40 hr
Jan 17, 3:00 PM ESTWinter Weather AdvisoryGYX24 hr
Jan 24, 2:32 AM ESTWind Chill AdvisoryGYX31 hr
Jan 26, 3:03 PM ESTWinter Storm WatchGYX18 hr
Jan 27, 2:43 AM ESTWinter Storm WarningGYX51 hr
Jan 28, 12:26 PM ESTMesoscale DiscussionSPC6 hr
Jan 28, 6:12 PM ESTMesoscale DiscussionSPC6 hr
Feb 10, 3:03 AM ESTWinter Weather AdvisoryGYX11 hr
Feb 17, 3:42 PM ESTWinter Storm WatchGYX12 hr
Feb 18, 4:09 AM ESTWinter Storm WarningGYX27 hr
Feb 19, 12:07 AM ESTMesoscale DiscussionSPC4 hr
Feb 21, 4:07 AM ESTWinter Storm WatchGYX12 hr
Feb 21, 3:44 PM ESTWinter Storm WarningGYX43 hr
Feb 22, 6:00 PM ESTMesoscale DiscussionSPC5 hr
Feb 23, 12:14 AM ESTMesoscale DiscussionSPC4 hr
Feb 28, 3:25 PM ESTWinter Storm WatchGYX12 hr
Mar 1, 3:09 AM ESTWinter Storm WatchGYX12 hr
Mar 1, 3:09 AM ESTWinter Storm WarningGYX34 hr
Mar 7, 3:24 AM ESTWinter Weather AdvisoryGYX26 hr
Mar 10, 3:36 PM EDTWinter Weather AdvisoryGYX19 hr
Apr 2, 3:15 PM EDTFlood WatchGYX44 hr
Apr 5, 3:38 PM EDTFlood WatchGYX43 hr
May 9, 3:40 PM EDTSevere Thunderstorm WatchSPC6 hr
May 14, 3:19 AM EDTWind AdvisoryGYX17 hr
May 18, 3:06 AM EDTFrost AdvisoryGYX28 hr
May 25, 3:08 AM EDTFrost AdvisoryGYX28 hr
May 31, 2:17 PM EDTFrost AdvisoryGYX17 hr
May 31, 5:35 PM EDTSevere Thunderstorm WarningGYX40 min
Jun 4, 2:45 PM EDTFrost AdvisoryGYX16 hr
Jun 25, 3:02 PM EDTAreal Flood AdvisoryGYX3 hr
Jun 26, 12:34 AM EDTSevere Thunderstorm WarningGYX41 min
Jun 26, 11:39 AM EDTMesoscale DiscussionSPC96 min
Jun 26, 12:12 PM EDTSevere Thunderstorm WarningGYX33 min
Jun 26, 12:13 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 26, 12:41 PM EDTSevere Thunderstorm WarningGYX49 min
Jun 26, 2:14 PM EDTSevere Thunderstorm WarningGYX46 min
Jun 26, 2:40 PM EDTSevere Thunderstorm WarningGYX50 min
Jun 26, 3:07 PM EDTAreal Flood AdvisoryGYX3 hr
Jun 26, 3:26 PM EDTSevere Thunderstorm WarningGYX64 min
Jun 26, 3:27 PM EDTFlash Flood WarningGYX3 hr
Jun 26, 3:44 PM EDTSevere Thunderstorm WarningGYX46 min
Jun 26, 4:06 PM EDTSevere Thunderstorm WarningGYX39 min
Jun 26, 4:44 PM EDTSevere Thunderstorm WarningGYX46 min
Jun 26, 10:54 PM EDTAreal Flood AdvisoryGYX3 hr
Jun 27, 2:14 AM EDTAreal Flood AdvisoryGYX91 min
Jun 27, 4:15 AM EDTAreal Flood AdvisoryGYX2 hr
Jun 27, 4:00 PM EDTAreal Flood AdvisoryGYX8 hr
Jun 29, 3:54 AM EDTAreal Flood AdvisoryGYX3 hr
Jun 29, 5:37 AM EDTAreal Flood WarningGYX4 hr
Jul 2, 10:17 PM EDTAreal Flood AdvisoryGYX3 hr
Jul 3, 7:27 PM EDTFlash Flood WarningGYX3 hr
Jul 3, 10:00 PM EDTAreal Flood AdvisoryGYX3 hr
Jul 13, 2:54 PM EDTSevere Thunderstorm WarningGYX51 min
Jul 27, 11:02 AM EDTMesoscale DiscussionSPC118 min
Jul 27, 2:42 PM EDTSevere Thunderstorm WatchSPC6 hr
Jul 27, 3:07 PM EDTSevere Thunderstorm WarningGYX38 min
Jul 27, 4:44 PM EDTMesoscale DiscussionSPC61 min
Jul 27, 6:32 PM EDTMesoscale DiscussionSPC88 min
Jul 29, 3:11 PM EDTFlash Flood WatchGYX19 hr
Jul 31, 7:15 AM EDTFlood WatchGYX13 hr
Aug 21, 10:47 AM EDTSevere Thunderstorm WatchSPC7 hr
Aug 21, 3:20 PM EDTSevere Thunderstorm WarningGYX55 min
Aug 21, 4:22 PM EDTTornado WatchSPC3 hr
Aug 21, 4:43 PM EDTSevere Thunderstorm WarningGYX47 min
Aug 21, 4:59 PM EDTTornado WarningGYX31 min
Aug 21, 5:26 PM EDTSevere Thunderstorm WarningGYX64 min
Aug 21, 5:55 PM EDTMesoscale DiscussionSPC80 min
Aug 21, 6:09 PM EDTSevere Thunderstorm WarningGYX51 min
Aug 21, 6:16 PM EDTAreal Flood AdvisoryGYX3 hr
Aug 22, 9:23 PM EDTAreal Flood AdvisoryGYX3 hr
Aug 22, 9:56 PM EDTFlash Flood WarningGYX3 hr
Aug 31, 3:47 PM EDTFrost AdvisoryGYX16 hr
Sep 16, 2:25 AM EDTFrost AdvisoryGYX30 hr
Sep 19, 2:43 AM EDTFreeze WarningGYX29 hr
Sep 25, 3:48 AM EDTFreeze WarningGYX28 hr
Oct 13, 3:27 AM EDTWinter Weather AdvisoryGYX8 hr
Oct 24, 2:43 AM EDTMesoscale DiscussionSPC6 hr
Oct 24, 3:09 AM EDTWinter Weather AdvisoryGYX6 hr
Oct 24, 9:26 PM EDTAreal Flood AdvisoryGYX6 hr
Oct 31, 3:01 AM EDTWind AdvisoryGYX21 hr
Nov 27, 3:50 AM ESTWinter Weather AdvisoryGYX30 hr
Nov 28, 2:37 AM ESTWind AdvisoryGYX15 hr
Dec 8, 3:19 AM ESTWinter Storm WatchGYX13 hr
Dec 8, 4:13 PM ESTWinter Storm WarningGYX30 hr
Dec 9, 6:33 AM ESTMesoscale DiscussionSPC3 hr
Dec 9, 12:41 PM ESTMesoscale DiscussionSPC4 hr
Dec 11, 3:30 AM ESTWind AdvisoryGYX16 hr
Dec 13, 12:38 PM ESTWinter Weather AdvisoryGYX10 hr
Dec 16, 3:00 PM ESTWind Chill AdvisoryGYX21 hr
Dec 17, 3:19 PM ESTWind Chill AdvisoryGYX18 hr
Dec 22, 2:57 AM ESTWinter Storm WatchGYX12 hr
Dec 22, 8:55 PM ESTWinter Weather AdvisoryGYX15 hr
Dec 26, 3:14 PM ESTWinter Weather AdvisoryGYX16 hr
Dec 27, 2:52 PM ESTWinter Storm WatchGYX13 hr
Dec 28, 3:36 AM ESTWinter Storm WarningGYX22 hr
Dec 29, 3:26 AM ESTWind AdvisoryGYX16 hr
Dec 29, 11:13 AM ESTWind Chill AdvisoryGYX16 hr

By product

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

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20082010

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.