Alert archive / Maryland / Worcester County
Weather alerts in Worcester County, Maryland, 2010
150 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Worcester County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 150
- Warnings
- 24
- Watches
- 23
- Advisories
- 39
- Busiest month
- June25 alerts
- Busiest day
- August 5, 20106 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Worcester County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 7 | 30% | 6 | 100% | 37 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Wakefield, VA: tornado warnings | 50 | 6 | 88% | 16 | 56% | 19 min |
| NWS Wakefield, VA: severe thunderstorm warnings | 170 | 133 | 22% | 362 | 82% | 23 min |
| NWS Wakefield, VA: flash flood warnings | 11 | 9 | 18% | 18 | 89% | 94 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 1, 1:15 AM EST | Dense Fog Advisory | AKQ | 8 hr |
| Jan 3, 3:44 AM EST | Wind Advisory | AKQ | 14 hr |
| Jan 7, 3:57 PM EST | Winter Weather Advisory | AKQ | 18 hr |
| Jan 28, 3:56 AM EST | Winter Storm Watch | AKQ | 36 hr |
| Jan 29, 4:04 AM EST | Winter Storm Warning | AKQ | 48 hr |
| Jan 30, 11:03 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 3, 3:59 PM EST | Winter Storm Watch | AKQ | 37 hr |
| Feb 4, 4:04 PM EST | Winter Storm Warning | AKQ | 50 hr |
| Feb 4, 4:07 PM EST | Coastal Flood Advisory | AKQ | 60 hr |
| Feb 5, 3:26 AM EST | Coastal Flood Warning | AKQ | 49 hr |
| Feb 5, 3:26 AM EST | High Surf Advisory | AKQ | 51 hr |
| Feb 5, 3:52 AM EST | Wind Advisory | AKQ | 41 hr |
| Feb 5, 7:05 AM EST | Winter Storm Watch | AKQ | 8 hr |
| Feb 5, 4:05 PM EST | High Wind Warning | AKQ | 29 hr |
| Feb 8, 3:34 PM EST | Winter Storm Watch | AKQ | 12 hr |
| Feb 9, 3:26 AM EST | Winter Storm Warning | AKQ | 30 hr |
| Feb 9, 2:41 PM EST | Wind Advisory | AKQ | 32 hr |
| Feb 10, 9:01 AM EST | Blizzard Warning | AKQ | 13 hr |
| Feb 10, 12:20 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Feb 23, 3:50 PM EST | Winter Storm Watch | AKQ | 24 hr |
| Feb 24, 3:28 PM EST | Winter Storm Warning | AKQ | 36 hr |
| Feb 25, 4:08 AM EST | Wind Advisory | AKQ | 37 hr |
| Feb 26, 3:49 AM EST | Winter Weather Advisory | AKQ | 13 hr |
| Mar 2, 5:22 AM EST | Coastal Flood Advisory | AKQ | 44 hr |
| Mar 12, 4:11 AM EST | Wind Advisory | AKQ | 24 hr |
| Mar 12, 4:35 AM EST | Flood Watch | AKQ | 24 hr |
| Mar 12, 3:56 PM EST | Coastal Flood Warning | AKQ | 15 hr |
| Mar 12, 3:56 PM EST | High Surf Advisory | AKQ | 24 hr |
| Mar 13, 12:12 PM EST | Areal Flood Advisory | AKQ | 93 min |
| Mar 13, 1:12 PM EST | Coastal Flood Advisory | AKQ | 3 days |
| Mar 13, 8:16 PM EST | High Surf Advisory | AKQ | 8 hr |
| Mar 29, 7:15 AM EDT | Areal Flood Advisory | AKQ | 3 hr |
| Mar 29, 9:57 AM EDT | Areal Flood Advisory | AKQ | 93 min |
| Mar 29, 11:15 AM EDT | Coastal Flood Advisory | AKQ | 17 hr |
| Mar 29, 11:40 AM EDT | Areal Flood Advisory | AKQ | 110 min |
| Apr 26, 6:13 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 8, 8:26 PM EDT | Fire Weather Watch | AKQ | 8 hr |
| May 9, 4:14 AM EDT | Red Flag Warning | AKQ | 16 hr |
| Jun 1, 6:30 PM EDT | Special Weather Statement | AKQ | 45 min |
| Jun 2, 2:44 PM EDT | Special Weather Statement | AKQ | 61 min |
| Jun 3, 1:32 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 3, 6:28 PM EDT | Mesoscale Discussion | SPC | 62 min |
| Jun 3, 7:52 PM EDT | Special Weather Statement | AKQ | 53 min |
| Jun 4, 7:03 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jun 6, 1:12 AM EDT | Special Weather Statement | AKQ | 33 min |
| Jun 6, 11:42 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Jun 6, 12:40 PM EDT | Tornado Watch | SPC | 6 hr |
| Jun 10, 5:55 AM EDT | Special Weather Statement | AKQ | 65 min |
| Jun 22, 10:42 PM EDT | Special Weather Statement | AKQ | 33 min |
| Jun 22, 11:35 PM EDT | Special Weather Statement | AKQ | 30 min |
| Jun 23, 12:05 AM EDT | Special Weather Statement | AKQ | 55 min |
| Jun 23, 12:58 AM EDT | Special Weather Statement | AKQ | 62 min |
| Jun 24, 3:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 6:51 PM EDT | Special Weather Statement | AKQ | 54 min |
| Jun 24, 7:21 PM EDT | Special Weather Statement | AKQ | 54 min |
| Jun 24, 7:33 PM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| Jun 24, 7:47 PM EDT | Severe Thunderstorm Warning | AKQ | 58 min |
| Jun 24, 8:30 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Jun 28, 1:12 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 28, 3:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 28, 5:51 PM EDT | Special Weather Statement | AKQ | 24 min |
| Jun 28, 6:38 PM EDT | Special Weather Statement | AKQ | 52 min |
| Jun 28, 7:30 PM EDT | Special Weather Statement | AKQ | 45 min |
| Jul 9, 5:35 AM EDT | Coastal Flood Statement | AKQ | 12 hr |
| Jul 13, 1:18 PM EDT | Special Weather Statement | AKQ | 57 min |
| Jul 13, 2:13 PM EDT | Special Weather Statement | AKQ | 62 min |
| Jul 13, 5:02 PM EDT | Special Weather Statement | AKQ | 43 min |
| Jul 14, 2:46 AM EDT | Special Weather Statement | AKQ | 74 min |
| Jul 22, 3:18 PM EDT | Heat Advisory | AKQ | 28 hr |
| Jul 23, 2:57 PM EDT | Heat Advisory | AKQ | 29 hr |
| Jul 24, 3:44 PM EDT | Heat Advisory | AKQ | 28 hr |
| Jul 25, 1:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 25, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 25, 3:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 25, 5:30 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Jul 29, 11:36 AM EDT | Mesoscale Discussion | SPC | 54 min |
| Jul 29, 11:54 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 29, 1:46 PM EDT | Special Weather Statement | AKQ | 59 min |
| Jul 29, 2:44 PM EDT | Special Weather Statement | AKQ | 61 min |
| Jul 29, 4:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Aug 4, 4:04 PM EDT | Heat Advisory | AKQ | 27 hr |
| Aug 4, 8:36 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 5, 1:19 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 5, 5:48 PM EDT | Severe Thunderstorm Warning | AKQ | 42 min |
| Aug 5, 6:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Aug 5, 6:29 PM EDT | Severe Thunderstorm Warning | AKQ | 46 min |
| Aug 5, 7:01 PM EDT | Severe Thunderstorm Warning | AKQ | 44 min |
| Aug 5, 8:03 PM EDT | Special Weather Statement | AKQ | 87 min |
| Aug 9, 3:16 AM EDT | Dense Fog Advisory | AKQ | 5 hr |
| Aug 12, 7:01 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 12, 9:16 AM EDT | Severe Thunderstorm Warning | AKQ | 59 min |
| Aug 12, 9:29 AM EDT | Mesoscale Discussion | SPC | 91 min |
| Aug 12, 10:09 AM EDT | Severe Thunderstorm Warning | AKQ | 66 min |
| Aug 13, 4:43 AM EDT | Coastal Flood Statement | AKQ | 39 hr |
| Aug 14, 10:37 PM EDT | Coastal Flood Statement | AKQ | 21 hr |
| Aug 22, 12:55 PM EDT | Special Weather Statement | AKQ | 50 min |
| Aug 22, 1:48 PM EDT | Special Weather Statement | AKQ | 42 min |
| Aug 22, 7:09 PM EDT | Special Weather Statement | AKQ | 66 min |
| Aug 24, 1:33 PM EDT | Coastal Flood Advisory | AKQ | 21 hr |
| Aug 28, 7:02 PM EDT | Coastal Flood Statement | AKQ | 25 hr |
| Aug 28, 11:00 PM EDT | Hurricane Watch | NHC | 5 days |
| Aug 29, 11:00 AM EDT | Tropical Storm Warning | NHC | 7 days |
| Aug 30, 4:55 PM EDT | Coastal Flood Statement | AKQ | 12 hr |
| Aug 31, 3:54 PM EDT | Coastal Flood Statement | AKQ | 20 hr |
| Aug 31, 5:43 PM EDT | Hurricane Watch | AKQ | 60 hr |
| Sep 1, 5:13 PM EDT | Tropical Storm Warning | AKQ | 48 hr |
| Sep 3, 5:22 PM EDT | Coastal Flood Statement | AKQ | 27 hr |
| Sep 18, 8:43 AM EDT | Coastal Flood Statement | AKQ | 3 days |
| Sep 28, 8:00 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 28, 2:02 PM EDT | Special Weather Statement | AKQ | 58 min |
| Sep 29, 4:41 AM EDT | Flash Flood Watch | AKQ | 47 hr |
| Sep 29, 4:00 PM EDT | Wind Advisory | AKQ | 28 hr |
| Sep 29, 4:07 PM EDT | High Surf Advisory | AKQ | 38 hr |
| Sep 30, 4:02 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 30, 4:55 AM EDT | Tornado Watch | SPC | 8 hr |
| Sep 30, 8:25 AM EDT | Mesoscale Discussion | SPC | 95 min |
| Sep 30, 10:49 AM EDT | Mesoscale Discussion | SPC | 116 min |
| Sep 30, 3:16 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Oct 1, 12:01 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Oct 3, 5:33 AM EDT | Coastal Flood Advisory | AKQ | 38 hr |
| Oct 3, 8:17 PM EDT | High Surf Advisory | AKQ | 21 hr |
| Oct 27, 5:28 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 27, 12:13 PM EDT | Tornado Watch | SPC | 8 hr |
| Oct 27, 7:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Oct 27, 7:30 PM EDT | Severe Thunderstorm Warning | AKQ | 45 min |
| Oct 27, 7:46 PM EDT | Tornado Watch | SPC | 8 hr |
| Oct 27, 10:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Oct 27, 10:52 PM EDT | Special Weather Statement | AKQ | 53 min |
| Oct 28, 12:54 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Nov 1, 3:40 PM EDT | Frost Advisory | AKQ | 16 hr |
| Nov 6, 3:46 AM EDT | Freeze Warning | AKQ | 29 hr |
| Nov 6, 9:26 AM EDT | Coastal Flood Statement | AKQ | 3 hr |
| Nov 7, 4:26 AM EST | Coastal Flood Statement | AKQ | 15 hr |
| Nov 9, 3:15 PM EST | Coastal Flood Advisory | AKQ | 23 hr |
| Nov 10, 3:47 PM EST | Coastal Flood Advisory | AKQ | 22 hr |
| Nov 12, 3:39 AM EST | Coastal Flood Advisory | AKQ | 30 hr |
| Nov 14, 11:37 PM EST | Dense Fog Advisory | AKQ | 7 hr |
| Nov 17, 2:36 AM EST | Special Weather Statement | AKQ | 54 min |
| Nov 22, 2:30 AM EST | Dense Fog Advisory | AKQ | 7 hr |
| Dec 1, 5:18 AM EST | Mesoscale Discussion | SPC | 117 min |
| Dec 1, 6:12 AM EST | Tornado Watch | SPC | 4 hr |
| Dec 1, 7:51 AM EST | Mesoscale Discussion | SPC | 84 min |
| Dec 15, 3:11 PM EST | Winter Weather Advisory | AKQ | 30 hr |
| Dec 24, 3:51 PM EST | Winter Storm Watch | AKQ | 24 hr |
| Dec 25, 12:02 PM EST | Winter Storm Warning | AKQ | 39 hr |
| Dec 26, 3:26 AM EST | Coastal Flood Advisory | AKQ | 22 hr |
| Dec 26, 4:09 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 26, 3:36 PM EST | Blizzard Warning | AKQ | 12 hr |
| Dec 27, 3:13 AM EST | Winter Weather Advisory | AKQ | 6 hr |
| Dec 27, 9:02 AM EST | Wind Advisory | AKQ | 10 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 | 10 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 27 |
| Special Weather Statement | 27 |
| Flooding | |
| Flash Flood Watch | 1 |
| Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Blizzard Warning | 2 |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 6 |
| Winter Weather Advisory | 4 |
| Heat | |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Tropical | |
| Tropical Storm Warning | 2 |
| Hurricane Watch | 2 |
| Coast and beach | |
| Coastal Flood Warning | 2 |
| Coastal Flood Advisory | 10 |
| High Surf Advisory | 5 |
| Coastal Flood Statement | 10 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.