Alert archive / Maryland / Somerset County
Weather alerts in Somerset County, Maryland, 2016
130 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Somerset County and its neighbors
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Alerts
- 130
- Warnings
- 31
- Watches
- 10
- Advisories
- 33
- Busiest month
- July27 alerts
- Busiest day
- July 28, 20167 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 2 tornado warnings covering Somerset County in 2016 had a tornado report inside them.
Somerset County, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 9 | 6 | 33% | 8 | 50% | 10 min |
| Flash flood warnings | 1 | 1 | 0% | 2 | 100% | 140 min |
Each office's whole area, 2016
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 49 | 7 | 86% | 24 | 71% | 15 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 143 | 89 | 38% | 321 | 64% | 22 min |
| NWS Wakefield, VA: flash flood warnings | 14 | 9 | 36% | 16 | 88% | 73 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 10, 6:02 AM EST | Coastal Flood Advisory | AKQ | 9 hr |
| Jan 10, 10:37 AM EST | Coastal Flood Warning | AKQ | 9 hr |
| Jan 20, 3:17 PM EST | Winter Storm Watch | AKQ | 36 hr |
| Jan 21, 10:27 AM EST | Winter Storm Warning | AKQ | 66 hr |
| Jan 22, 12:34 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 4, 3:18 PM EST | Winter Weather Advisory | AKQ | 20 hr |
| Feb 6, 5:44 PM EST | Coastal Flood Advisory | AKQ | 3 days |
| Feb 9, 8:10 AM EST | Coastal Flood Warning | AKQ | 11 hr |
| Feb 9, 8:06 PM EST | Coastal Flood Warning | AKQ | 10 hr |
| Feb 9, 8:06 PM EST | Coastal Flood Advisory | AKQ | 22 hr |
| Feb 13, 3:26 AM EST | Wind Chill Advisory | AKQ | 31 hr |
| Feb 14, 3:54 AM EST | Winter Weather Advisory | AKQ | 45 hr |
| Feb 15, 9:52 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 16, 10:49 AM EST | Special Weather Statement | AKQ | 71 min |
| Feb 24, 1:02 PM EST | Coastal Flood Advisory | AKQ | 18 hr |
| Feb 24, 1:46 PM EST | Tornado Watch | SPC | 9 hr |
| Feb 24, 4:46 PM EST | Mesoscale Discussion | SPC | 89 min |
| Feb 24, 4:51 PM EST | Tornado Warning | AKQ | 39 min |
| Mar 3, 3:28 PM EST | Winter Weather Advisory | AKQ | 19 hr |
| Apr 1, 9:04 AM EDT | Special Weather Statement | AKQ | 41 min |
| Apr 2, 4:47 AM EDT | Wind Advisory | AKQ | 31 hr |
| Apr 3, 12:26 AM EDT | Special Weather Statement | AKQ | 49 min |
| Apr 4, 3:34 AM EDT | Freeze Watch | AKQ | 24 hr |
| Apr 5, 3:28 AM EDT | Freeze Warning | AKQ | 30 hr |
| Apr 7, 11:36 AM EDT | Mesoscale Discussion | SPC | 114 min |
| Apr 7, 3:10 PM EDT | Coastal Flood Advisory | AKQ | 14 hr |
| Apr 8, 4:08 AM EDT | Freeze Watch | AKQ | 23 hr |
| Apr 8, 3:56 PM EDT | Wind Advisory | AKQ | 30 hr |
| Apr 9, 2:59 AM EDT | Freeze Warning | AKQ | 30 hr |
| Apr 28, 5:07 AM EDT | Coastal Flood Statement | AKQ | 5 hr |
| May 4, 5:28 PM EDT | Coastal Flood Statement | AKQ | 21 hr |
| May 5, 6:05 AM EDT | Coastal Flood Advisory | AKQ | 10 hr |
| May 5, 6:05 AM EDT | Coastal Flood Advisory | AKQ | 60 hr |
| May 7, 5:53 PM EDT | Coastal Flood Statement | AKQ | 6 hr |
| May 7, 11:40 PM EDT | Coastal Flood Advisory | AKQ | 7 hr |
| May 8, 4:50 PM EDT | Coastal Flood Statement | AKQ | 14 hr |
| May 14, 5:24 PM EDT | Special Weather Statement | AKQ | 81 min |
| Jun 3, 3:30 AM EDT | Dense Fog Advisory | AKQ | 5 hr |
| Jun 5, 3:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 5, 4:05 PM EDT | Coastal Flood Advisory | AKQ | 13 hr |
| Jun 15, 11:59 PM EDT | Special Weather Statement | AKQ | 46 min |
| Jun 21, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 21, 3:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jun 21, 5:16 PM EDT | Severe Thunderstorm Warning | AKQ | 59 min |
| Jun 21, 5:54 PM EDT | Severe Thunderstorm Warning | AKQ | 51 min |
| Jun 21, 6:30 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jun 24, 12:57 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 28, 11:27 AM EDT | Areal Flood Warning | AKQ | 3 hr |
| Jul 1, 10:42 AM EDT | Special Weather Statement | AKQ | 63 min |
| Jul 8, 7:25 PM EDT | Special Weather Statement | AKQ | 50 min |
| Jul 9, 8:00 PM EDT | Special Weather Statement | AKQ | 30 min |
| Jul 13, 4:03 PM EDT | Heat Advisory | AKQ | 28 hr |
| Jul 13, 7:24 PM EDT | Special Weather Statement | AKQ | 66 min |
| Jul 18, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 3:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 18, 5:55 PM EDT | Special Weather Statement | AKQ | 50 min |
| Jul 18, 6:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 18, 6:24 PM EDT | Severe Thunderstorm Warning | AKQ | 40 min |
| Jul 18, 6:35 PM EDT | Severe Thunderstorm Warning | AKQ | 40 min |
| Jul 24, 3:01 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 25, 3:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 26, 1:31 AM EDT | Special Weather Statement | AKQ | 44 min |
| Jul 26, 2:14 AM EDT | Special Weather Statement | AKQ | 46 min |
| Jul 26, 3:01 AM EDT | Special Weather Statement | AKQ | 44 min |
| Jul 27, 5:19 AM EDT | Special Weather Statement | AKQ | 41 min |
| Jul 28, 12:58 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 2:26 PM EDT | Special Weather Statement | AKQ | 34 min |
| Jul 28, 6:14 PM EDT | Special Weather Statement | AKQ | 46 min |
| Jul 28, 6:52 PM EDT | Special Weather Statement | AKQ | 53 min |
| Jul 28, 6:52 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 28, 7:04 PM EDT | Severe Thunderstorm Warning | AKQ | 26 min |
| Jul 28, 7:30 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Jul 28, 8:05 PM EDT | Tornado Warning | AKQ | 25 min |
| Jul 28, 8:29 PM EDT | Severe Thunderstorm Warning | AKQ | 34 min |
| Jul 28, 10:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 12, 3:06 PM EDT | Heat Advisory | AKQ | 53 hr |
| Aug 15, 3:32 PM EDT | Heat Advisory | AKQ | 27 hr |
| Aug 15, 11:02 PM EDT | Special Weather Statement | AKQ | 28 min |
| Aug 15, 11:28 PM EDT | Special Weather Statement | AKQ | 32 min |
| Aug 16, 12:03 AM EDT | Special Weather Statement | AKQ | 42 min |
| Aug 16, 12:53 AM EDT | Special Weather Statement | AKQ | 67 min |
| Aug 17, 4:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Aug 17, 9:38 PM EDT | Special Weather Statement | AKQ | 37 min |
| Aug 17, 9:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 17, 10:20 PM EDT | Special Weather Statement | AKQ | 40 min |
| Aug 17, 10:29 PM EDT | Severe Thunderstorm Warning | AKQ | 46 min |
| Aug 17, 10:57 PM EDT | Severe Thunderstorm Warning | AKQ | 33 min |
| Aug 21, 12:09 PM EDT | Coastal Flood Statement | AKQ | 9 hr |
| Aug 21, 4:15 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Aug 21, 6:15 PM EDT | Special Weather Statement | AKQ | 45 min |
| Aug 30, 2:46 PM EDT | Special Weather Statement | AKQ | 44 min |
| Aug 31, 5:00 AM EDT | Tropical Storm Warning | NHC | 10 days |
| Sep 1, 11:28 AM EDT | Special Weather Statement | AKQ | 47 min |
| Sep 2, 11:55 AM EDT | Tropical Storm Warning | AKQ | 53 hr |
| Sep 4, 9:04 AM EDT | Coastal Flood Advisory | AKQ | 59 hr |
| Sep 7, 2:04 AM EDT | Coastal Flood Advisory | AKQ | 9 hr |
| Sep 16, 5:59 PM EDT | Coastal Flood Advisory | AKQ | 10 hr |
| Sep 17, 5:00 AM EDT | Coastal Flood Statement | AKQ | 24 hr |
| Sep 19, 3:14 PM EDT | Areal Flood Warning | AKQ | 3 hr |
| Sep 28, 12:21 PM EDT | Special Weather Statement | AKQ | 54 min |
| Sep 28, 1:34 PM EDT | Special Weather Statement | AKQ | 56 min |
| Sep 28, 4:07 PM EDT | Flash Flood Watch | AKQ | 44 hr |
| Sep 28, 9:04 PM EDT | Special Weather Statement | AKQ | 41 min |
| Sep 28, 9:36 PM EDT | Special Weather Statement | AKQ | 39 min |
| Sep 28, 10:26 PM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Sep 28, 10:28 PM EDT | Special Weather Statement | AKQ | 47 min |
| Sep 28, 11:40 PM EDT | Flash Flood Warning | AKQ | 3 hr |
| Sep 29, 5:36 AM EDT | Coastal Flood Advisory | AKQ | 3 days |
| Sep 29, 5:33 PM EDT | Coastal Flood Warning | AKQ | 34 hr |
| Sep 30, 12:55 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Sep 30, 3:05 PM EDT | Areal Flood Warning | AKQ | 18 hr |
| Oct 1, 8:59 AM EDT | Areal Flood Warning | AKQ | 12 hr |
| Oct 1, 8:59 PM EDT | Areal Flood Warning | AKQ | 12 hr |
| Oct 2, 5:05 AM EDT | Coastal Flood Statement | AKQ | 12 hr |
| Oct 2, 8:59 AM EDT | Areal Flood Warning | AKQ | 48 hr |
| Oct 4, 9:04 AM EDT | Areal Flood Warning | AKQ | 12 hr |
| Oct 4, 6:03 PM EDT | Coastal Flood Advisory | AKQ | 72 hr |
| Oct 7, 3:09 AM EDT | Flash Flood Watch | AKQ | 59 hr |
| Oct 7, 3:52 PM EDT | Wind Advisory | AKQ | 52 hr |
| Oct 9, 12:41 AM EDT | Areal Flood Warning | AKQ | 19 hr |
| Oct 9, 8:29 PM EDT | Areal Flood Warning | AKQ | 43 hr |
| Oct 21, 4:53 PM EDT | Coastal Flood Statement | AKQ | 6 hr |
| Oct 25, 3:23 PM EDT | Frost Advisory | AKQ | 18 hr |
| Oct 27, 2:45 PM EDT | Special Weather Statement | AKQ | 60 min |
| Nov 7, 3:29 PM EST | Frost Advisory | AKQ | 17 hr |
| Nov 11, 2:25 PM EST | Freeze Watch | AKQ | 13 hr |
| Nov 12, 3:43 AM EST | Freeze Warning | AKQ | 28 hr |
| Nov 19, 3:47 AM EST | Wind Advisory | AKQ | 38 hr |
| Dec 15, 2:46 PM EST | Wind Chill Advisory | AKQ | 13 hr |
| Dec 24, 10:30 PM EST | Dense Fog Advisory | AKQ | 8 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 | 9 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 3 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 16 |
| Special Weather Statement | 32 |
| Flooding | |
| Areal Flood Warning | 9 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 3 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 3 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Tropical | |
| Tropical Storm Warning | 2 |
| Coast and beach | |
| Coastal Flood Warning | 4 |
| Coastal Flood Advisory | 14 |
| Coastal Flood Statement | 8 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20152017
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.