Alert archive / Maine / Androscoggin County
Weather alerts in Androscoggin County, Maine, 2009
72 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Androscoggin County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 72
- Warnings
- 23
- Watches
- 14
- Advisories
- 22
- Busiest month
- July12 alerts
- Busiest day
- August 21, 20098 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 Androscoggin County in 2009 had a tornado report inside them.
Androscoggin County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 0 | ||
| Severe thunderstorm warnings | 14 | 10 | 29% | 4 | 100% | 16 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 6 | 2 | 67% | 3 | 67% | 7 min |
| NWS Gray, ME: severe thunderstorm warnings | 117 | 51 | 56% | 85 | 87% | 22 min |
| NWS Gray, ME: flash flood warnings | 15 | 5 | 67% | 9 | 78% | 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 3:26 AM EST | Winter Storm Watch | GYX | 14 hr |
| Jan 6, 5:10 PM EST | Winter Weather Advisory | GYX | 34 hr |
| Jan 7, 11:39 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 10, 3:38 AM EST | Winter Storm Watch | GYX | 12 hr |
| Jan 17, 3:15 AM EST | Winter Storm Watch | GYX | 12 hr |
| Jan 17, 3:00 PM EST | Winter Storm Warning | GYX | 40 hr |
| Jan 18, 11:35 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 26, 3:03 PM EST | Winter Storm Watch | GYX | 18 hr |
| Jan 27, 2:43 AM EST | Winter Storm Warning | GYX | 51 hr |
| Jan 28, 12:26 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 17, 3:42 PM EST | Winter Storm Watch | GYX | 12 hr |
| Feb 18, 4:09 AM EST | Winter Storm Warning | GYX | 27 hr |
| Feb 18, 6:28 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 19, 12:07 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 21, 4:07 AM EST | Winter Storm Watch | GYX | 12 hr |
| Feb 21, 3:44 PM EST | Winter Storm Warning | GYX | 43 hr |
| Feb 22, 6:00 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 23, 12:14 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 28, 3:25 PM EST | Winter Storm Watch | GYX | 12 hr |
| Mar 1, 3:09 AM EST | Winter Storm Warning | GYX | 34 hr |
| Mar 2, 6:38 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 10, 3:36 PM EDT | Winter Weather Advisory | GYX | 19 hr |
| Apr 2, 3:15 PM EDT | Flood Watch | GYX | 44 hr |
| Apr 5, 3:38 PM EDT | Flood Watch | GYX | 43 hr |
| May 9, 3:40 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 9, 7:00 PM EDT | Severe Thunderstorm Warning | GYX | 45 min |
| May 14, 3:19 AM EDT | Wind Advisory | GYX | 17 hr |
| May 18, 3:06 AM EDT | Frost Advisory | GYX | 28 hr |
| May 25, 3:08 AM EDT | Frost Advisory | GYX | 28 hr |
| Jun 26, 12:13 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 26, 4:44 PM EDT | Severe Thunderstorm Warning | GYX | 46 min |
| Jul 2, 10:17 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 4, 1:02 PM EDT | Severe Thunderstorm Warning | GYX | 43 min |
| Jul 4, 2:39 PM EDT | Severe Thunderstorm Warning | GYX | 36 min |
| Jul 13, 7:28 PM EDT | Severe Thunderstorm Warning | GYX | 47 min |
| Jul 23, 3:28 PM EDT | Flood Watch | GYX | 23 hr |
| Jul 26, 4:42 PM EDT | Severe Thunderstorm Warning | GYX | 48 min |
| Jul 27, 11:02 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Jul 27, 4:11 PM EDT | Severe Thunderstorm Warning | GYX | 34 min |
| Jul 27, 4:51 PM EDT | Severe Thunderstorm Warning | GYX | 39 min |
| Jul 27, 5:31 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Jul 29, 11:43 PM EDT | Severe Thunderstorm Warning | GYX | 77 min |
| Jul 29, 11:59 PM EDT | Areal Flood Advisory | GYX | 6 hr |
| Aug 5, 1:07 PM EDT | Severe Thunderstorm Warning | GYX | 53 min |
| Aug 5, 2:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 21, 4:22 PM EDT | Tornado Watch | SPC | 3 hr |
| Aug 21, 4:43 PM EDT | Severe Thunderstorm Warning | GYX | 47 min |
| Aug 21, 4:51 PM EDT | Severe Thunderstorm Warning | GYX | 39 min |
| Aug 21, 4:59 PM EDT | Tornado Warning | GYX | 31 min |
| Aug 21, 5:26 PM EDT | Severe Thunderstorm Warning | GYX | 64 min |
| Aug 21, 5:55 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Aug 21, 5:55 PM EDT | Mesoscale Discussion | SPC | 80 min |
| Aug 21, 6:26 PM EDT | Severe Thunderstorm Warning | GYX | 64 min |
| Aug 23, 5:31 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Sep 19, 2:43 AM EDT | Frost Advisory | GYX | 29 hr |
| Sep 25, 3:48 AM EDT | Frost Advisory | GYX | 28 hr |
| Sep 25, 3:48 AM EDT | Freeze Warning | GYX | 28 hr |
| Oct 3, 10:14 PM EDT | Areal Flood Advisory | GYX | 2 hr |
| Oct 24, 9:26 PM EDT | Areal Flood Advisory | GYX | 6 hr |
| Nov 14, 5:37 PM EST | Areal Flood Advisory | GYX | 6 hr |
| Nov 14, 8:07 PM EST | Areal Flood Warning | GYX | 19 hr |
| Nov 28, 2:37 AM EST | Wind Advisory | GYX | 15 hr |
| Dec 5, 12:40 PM EST | Winter Weather Advisory | GYX | 17 hr |
| Dec 8, 3:19 AM EST | Winter Storm Watch | GYX | 13 hr |
| Dec 8, 4:13 PM EST | Winter Storm Warning | GYX | 30 hr |
| Dec 9, 6:33 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 9, 12:41 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 13, 12:38 PM EST | Winter Weather Advisory | GYX | 10 hr |
| Dec 26, 3:23 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Dec 26, 3:14 PM EST | Winter Weather Advisory | GYX | 16 hr |
| Dec 28, 3:36 AM EST | Winter Weather Advisory | GYX | 22 hr |
| Dec 29, 3:26 AM EST | Wind Advisory | GYX | 16 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 14 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 13 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flood Watch | 3 |
| Areal Flood Advisory | 8 |
| Winter | |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 8 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 3 |
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.