Alert archive / Maine / Knox County
Weather alerts in Knox County, Maine, 2008
79 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Knox County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 79
- Warnings
- 20
- Watches
- 19
- Advisories
- 35
- Busiest month
- December16 alerts
- Busiest day
- September 27, 20085 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Knox County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 1 | 80% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Gray, ME: tornado warnings | 4 | 2 | 50% | 14 | 43% | 10 min |
| NWS Gray, ME: severe thunderstorm warnings | 223 | 96 | 57% | 231 | 80% | 21 min |
| NWS Gray, ME: flash flood warnings | 16 | 9 | 44% | 17 | 65% | 50 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 |
|---|---|---|---|
| Dec 31, 9:03 PM EST | Winter Storm Warning | GYX | 34 hr |
| Jan 9, 3:22 AM EST | Wind Advisory | GYX | 18 hr |
| Jan 10, 3:03 PM EST | Winter Weather Advisory | GYX | 28 hr |
| Jan 13, 3:41 PM EST | Heavy Snow Warning | GYX | 31 hr |
| Jan 30, 3:28 AM EST | Wind Advisory | GYX | 15 hr |
| Feb 1, 4:01 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Feb 1, 4:11 AM EST | Wind Advisory | GYX | 31 hr |
| Feb 5, 3:59 PM EST | Winter Weather Advisory | GYX | 42 hr |
| Feb 9, 3:01 AM EST | Snow Advisory | GYX | 43 hr |
| Feb 10, 2:58 AM EST | Wind Advisory | GYX | 33 hr |
| Feb 11, 3:37 PM EST | Winter Storm Watch | GYX | 13 hr |
| Feb 12, 4:20 AM EST | Winter Storm Warning | GYX | 41 hr |
| Feb 26, 4:10 AM EST | Winter Weather Advisory | GYX | 24 hr |
| Feb 28, 3:29 PM EST | Winter Storm Watch | GYX | 13 hr |
| Feb 29, 4:06 AM EST | Heavy Snow Warning | GYX | 41 hr |
| Mar 3, 4:08 PM EST | Winter Storm Watch | GYX | 11 hr |
| Mar 4, 3:16 AM EST | Winter Weather Advisory | GYX | 36 hr |
| Mar 7, 3:26 PM EST | Flood Watch | GYX | 53 hr |
| Mar 8, 3:25 PM EST | Coastal Flood Advisory | GYX | 11 hr |
| Mar 14, 3:47 AM EDT | Winter Weather Advisory | GYX | 31 hr |
| Mar 20, 3:49 AM EDT | High Wind Watch | GYX | 24 hr |
| Mar 21, 4:06 AM EDT | Wind Advisory | GYX | 16 hr |
| Mar 27, 3:45 PM EDT | Winter Weather Advisory | GYX | 21 hr |
| Apr 1, 3:33 PM EDT | Wind Advisory | GYX | 26 hr |
| Apr 28, 3:23 AM EDT | Flood Watch | GYX | 38 hr |
| Apr 29, 10:34 AM EDT | Areal Flood Advisory | GYX | 59 days |
| Apr 29, 4:12 PM EDT | Areal Flood Warning | GYX | 8 hr |
| Jun 10, 1:16 PM EDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 24, 5:50 PM EDT | Severe Thunderstorm Warning | GYX | 25 min |
| Jul 19, 5:11 PM EDT | Severe Thunderstorm Warning | GYX | 34 min |
| Jul 24, 12:52 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Jul 24, 12:57 PM EDT | Tornado Watch | SPC | 5 hr |
| Jul 29, 5:30 PM EDT | Severe Thunderstorm Warning | GYX | 60 min |
| Aug 7, 10:17 PM EDT | Flood Watch | GYX | 23 hr |
| Aug 7, 10:17 PM EDT | Flash Flood Watch | GYX | 23 hr |
| Aug 12, 5:06 AM EDT | Areal Flood Advisory | GYX | 3 hr |
| Aug 12, 7:44 AM EDT | Areal Flood Advisory | GYX | 3 hr |
| Aug 12, 10:36 AM EDT | Areal Flood Advisory | GYX | 84 min |
| Aug 16, 5:36 PM EDT | Severe Thunderstorm Warning | GYX | 39 min |
| Sep 5, 3:25 PM EDT | Flash Flood Watch | GYX | 35 hr |
| Sep 6, 8:22 PM EDT | Areal Flood Advisory | GYX | 113 min |
| Sep 6, 9:11 PM EDT | Areal Flood Warning | GYX | 14 hr |
| Sep 9, 12:02 PM EDT | Severe Thunderstorm Warning | GYX | 43 min |
| Sep 18, 3:07 AM EDT | Frost Advisory | GYX | 29 hr |
| Sep 22, 3:12 PM EDT | Frost Advisory | GYX | 16 hr |
| Sep 26, 3:41 PM EDT | Flood Watch | GYX | 44 hr |
| Sep 27, 11:00 AM EDT | Tropical Storm Watch | NHC | 24 hr |
| Sep 27, 11:53 AM EDT | Tropical Storm Watch | GYX | 24 hr |
| Sep 27, 5:00 PM EDT | Tropical Storm Warning | NHC | 30 hr |
| Sep 27, 5:38 PM EDT | Tropical Storm Warning | GYX | 19 hr |
| Sep 27, 6:27 PM EDT | Coastal Flood Advisory | GYX | 27 hr |
| Sep 27, 9:18 PM EDT | Areal Flood Warning | GYX | 12 hr |
| Sep 28, 8:38 AM EDT | Areal Flood Warning | GYX | 8 hr |
| Sep 28, 5:01 PM EDT | Areal Flood Advisory | GYX | 3 hr |
| Oct 25, 4:04 PM EDT | Wind Advisory | GYX | 16 hr |
| Oct 27, 3:59 PM EDT | Wind Advisory | GYX | 35 hr |
| Nov 24, 2:55 PM EST | High Wind Watch | GYX | 13 hr |
| Nov 24, 3:14 PM EST | Flood Watch | GYX | 33 hr |
| Nov 24, 3:44 PM EST | Coastal Flood Advisory | GYX | 30 hr |
| Nov 24, 9:47 PM EST | High Wind Warning | GYX | 27 hr |
| Nov 25, 10:43 PM EST | Coastal Flood Statement | GYX | 2 hr |
| Nov 25, 11:15 PM EST | Areal Flood Warning | GYX | 8 hr |
| Nov 26, 3:41 AM EST | Coastal Flood Advisory | GYX | 8 hr |
| Dec 9, 3:40 PM EST | Wind Advisory | GYX | 19 hr |
| Dec 10, 4:32 AM EST | Coastal Flood Watch | GYX | 48 hr |
| Dec 10, 4:50 AM EST | Winter Storm Watch | GYX | 25 hr |
| Dec 11, 4:18 AM EST | Coastal Flood Warning | GYX | 32 hr |
| Dec 11, 6:04 AM EST | Winter Storm Warning | GYX | 30 hr |
| Dec 11, 6:04 AM EST | Winter Weather Advisory | GYX | 15 hr |
| Dec 11, 1:52 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Dec 11, 6:56 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 12, 10:27 AM EST | Areal Flood Advisory | GYX | 3 hr |
| Dec 16, 3:34 PM EST | Winter Weather Advisory | GYX | 26 hr |
| Dec 19, 2:42 PM EST | Winter Storm Watch | GYX | 25 hr |
| Dec 19, 6:46 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Dec 20, 3:28 PM EST | Winter Storm Warning | GYX | 36 hr |
| Dec 24, 9:41 PM EST | Wind Advisory | GYX | 15 hr |
| Dec 26, 3:25 PM EST | Winter Weather Advisory | GYX | 28 hr |
| Dec 30, 3:11 PM EST | Winter Weather Advisory | GYX | 24 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 archive20072009
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.