Alert archive / Maryland / Charles County
Weather alerts in Charles County, Maryland, 2014
118 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Charles County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 118
- Warnings
- 31
- Watches
- 26
- Advisories
- 28
- Busiest month
- July29 alerts
- Busiest day
- July 9, 20146 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 1 tornado warnings covering Charles County in 2014 had a tornado report inside them.
Charles County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 18 | 14 | 22% | 18 | 83% | 12 min |
| Flash flood warnings | 2 | 2 | 0% | 1 | 100% | 20 min |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Baltimore/Washington: tornado warnings | 21 | 2 | 90% | 8 | 25% | 6 min |
| NWS Baltimore/Washington: severe thunderstorm warnings | 259 | 194 | 25% | 672 | 86% | 21 min |
| NWS Baltimore/Washington: flash flood warnings | 49 | 23 | 53% | 95 | 80% | 88 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 2, 2:17 PM EST | Wind Advisory | LWX | 19 hr |
| Jan 6, 4:22 AM EST | Wind Chill Advisory | LWX | 44 hr |
| Jan 9, 1:34 PM EST | Freezing Rain Advisory | LWX | 22 hr |
| Jan 11, 1:02 AM EST | Dense Fog Advisory | LWX | 12 hr |
| Jan 14, 10:20 PM EST | Dense Fog Advisory | LWX | 16 hr |
| Jan 20, 3:33 AM EST | Winter Storm Watch | LWX | 9 hr |
| Jan 20, 12:20 PM EST | Winter Storm Warning | LWX | 35 hr |
| Jan 21, 2:42 AM EST | Wind Chill Advisory | LWX | 59 hr |
| Jan 21, 11:03 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 21, 4:28 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 23, 1:28 PM EST | Wind Chill Advisory | LWX | 22 hr |
| Jan 28, 10:02 AM EST | Winter Weather Advisory | LWX | 20 hr |
| Feb 4, 4:10 AM EST | Freezing Rain Advisory | LWX | 30 hr |
| Feb 10, 2:54 PM EST | Winter Storm Watch | LWX | 37 hr |
| Feb 11, 9:29 PM EST | Winter Storm Warning | LWX | 51 hr |
| Feb 12, 6:41 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 13, 12:17 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 13, 3:11 AM EST | Winter Weather Advisory | LWX | 21 hr |
| Feb 13, 1:43 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 21, 10:39 AM EST | Tornado Watch | SPC | 5 hr |
| Feb 25, 11:14 AM EST | Winter Weather Advisory | LWX | 3 hr |
| Feb 25, 2:08 PM EST | Winter Weather Advisory | LWX | 22 hr |
| Mar 1, 3:23 AM EST | Winter Storm Watch | LWX | 24 hr |
| Mar 2, 3:25 AM EST | Winter Storm Warning | LWX | 38 hr |
| Mar 3, 12:47 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 3, 6:05 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Mar 6, 7:10 PM EST | Winter Weather Advisory | LWX | 17 hr |
| Mar 12, 3:05 AM EDT | Wind Advisory | LWX | 31 hr |
| Mar 12, 4:21 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Mar 12, 4:58 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 12, 7:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Mar 13, 2:13 PM EDT | Fire Weather Watch | LWX | 18 hr |
| Mar 15, 2:43 PM EDT | Winter Storm Watch | LWX | 14 hr |
| Mar 15, 2:43 PM EDT | Winter Storm Warning | LWX | 47 hr |
| Mar 16, 4:28 PM EDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 17, 8:21 PM EDT | Winter Weather Advisory | LWX | 16 hr |
| Mar 24, 8:30 PM EDT | Winter Weather Advisory | LWX | 33 hr |
| Mar 29, 9:15 AM EDT | Dense Fog Advisory | LWX | 3 hr |
| Apr 14, 3:50 PM EDT | Freeze Watch | LWX | 11 hr |
| Apr 15, 3:08 AM EDT | Freeze Warning | LWX | 30 hr |
| Apr 15, 2:23 PM EDT | Freeze Watch | LWX | 23 hr |
| Apr 16, 1:36 PM EDT | Freeze Warning | LWX | 19 hr |
| Apr 20, 4:55 PM EDT | Frost Advisory | LWX | 15 hr |
| Apr 22, 2:29 PM EDT | Fire Weather Watch | LWX | 14 hr |
| Apr 23, 4:11 AM EDT | Red Flag Warning | LWX | 16 hr |
| Apr 25, 2:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 26, 3:59 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 28, 1:52 PM EDT | Flash Flood Watch | LWX | 64 hr |
| Apr 29, 8:57 PM EDT | Coastal Flood Advisory | LWX | 64 hr |
| Apr 30, 3:50 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Apr 30, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Apr 30, 4:25 PM EDT | Tornado Warning | LWX | 35 min |
| Apr 30, 6:38 PM EDT | Areal Flood Warning | LWX | 14 hr |
| May 12, 5:56 PM EDT | Severe Thunderstorm Warning | LWX | 34 min |
| May 13, 9:09 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| May 14, 2:30 PM EDT | Flash Flood Watch | LWX | 44 hr |
| May 15, 11:53 AM EDT | Coastal Flood Advisory | LWX | 40 hr |
| May 16, 5:00 AM EDT | Areal Flood Warning | LWX | 17 hr |
| May 21, 2:10 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| May 21, 6:42 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| May 21, 6:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| May 22, 1:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 22, 2:18 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 22, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| May 22, 6:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 27, 2:13 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 27, 6:39 PM EDT | Mesoscale Discussion | SPC | 36 min |
| May 28, 2:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 9, 3:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 11, 2:59 PM EDT | Tornado Watch | SPC | 6 hr |
| Jun 12, 5:09 PM EDT | Coastal Flood Advisory | LWX | 18 hr |
| Jun 18, 11:53 PM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| Jun 19, 12:18 AM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 19, 12:21 AM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Jun 25, 1:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 3:24 AM EDT | Heat Advisory | LWX | 15 hr |
| Jul 2, 12:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 2, 12:42 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 2, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Jul 3, 12:31 AM EDT | Severe Thunderstorm Warning | LWX | 44 min |
| Jul 3, 3:49 AM EDT | Flash Flood Watch | LWX | 26 hr |
| Jul 3, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 3, 5:16 PM EDT | Severe Thunderstorm Warning | LWX | 44 min |
| Jul 8, 4:42 PM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 8, 5:05 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 8, 6:23 PM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| Jul 8, 8:54 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Jul 9, 3:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 9, 4:12 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 9, 5:21 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Jul 9, 5:52 PM EDT | Severe Thunderstorm Warning | LWX | 53 min |
| Jul 9, 6:36 PM EDT | Severe Thunderstorm Warning | LWX | 54 min |
| Jul 10, 3:01 PM EDT | Flash Flood Watch | LWX | 8 hr |
| Jul 10, 7:25 PM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Jul 14, 1:06 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 14, 1:24 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 14, 4:39 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 15, 1:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 15, 1:43 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 15, 3:01 PM EDT | Severe Thunderstorm Warning | LWX | 59 min |
| Jul 15, 4:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 15, 7:04 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jul 23, 9:51 PM EDT | Severe Thunderstorm Warning | LWX | 33 min |
| Jul 27, 11:28 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 11:54 AM EDT | Flash Flood Watch | LWX | 14 hr |
| Aug 12, 2:30 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Aug 12, 5:28 PM EDT | Areal Flood Warning | LWX | 14 hr |
| Sep 6, 2:07 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 6, 6:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Oct 1, 1:16 PM EDT | Coastal Flood Advisory | LWX | 3 days |
| Oct 7, 9:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Nov 2, 2:51 AM EST | Freeze Watch | LWX | 12 hr |
| Nov 2, 2:51 AM EST | Wind Advisory | LWX | 7 hr |
| Nov 3, 12:27 AM EST | Frost Advisory | LWX | 7 hr |
| Nov 6, 1:33 PM EST | Mesoscale Discussion | SPC | 117 min |
| Nov 12, 1:35 AM EST | Dense Fog Advisory | LWX | 8 hr |
| Dec 23, 12:17 PM EST | Dense Fog Advisory | LWX | 13 hr |
| Dec 24, 5:17 PM EST | Dense Fog Advisory | LWX | 5 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 | 18 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 33 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 5 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 7 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 3 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
| Coast and beach | |
| Coastal Flood Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20132015
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.