Alert archive / Maryland / Carroll County
Weather alerts in Carroll County, Maryland, 2014
155 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Carroll County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 155
- Warnings
- 42
- Watches
- 38
- Advisories
- 38
- Busiest month
- July33 alerts
- Busiest day
- July 3, 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.
Carroll County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 21 | 19 | 10% | 18 | 94% | 23 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
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, 3:45 AM EST | Winter Weather Advisory | LWX | 26 hr |
| Jan 2, 2:13 PM EST | Wind Chill Advisory | LWX | 28 hr |
| Jan 2, 2:17 PM EST | Wind Advisory | LWX | 19 hr |
| Jan 2, 4:15 PM EST | Winter Storm Warning | LWX | 12 hr |
| Jan 4, 2:59 PM EST | Freezing Rain Advisory | LWX | 35 hr |
| Jan 5, 4:11 AM EST | Wind Chill Watch | LWX | 24 hr |
| Jan 5, 12:07 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 5, 1:53 PM EST | Ice Storm Warning | LWX | 10 hr |
| Jan 5, 9:02 PM EST | Dense Fog Advisory | LWX | 9 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 10, 1:23 PM EST | Flood Watch | LWX | 29 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 24, 1:31 PM EST | Wind Chill Advisory | LWX | 19 hr |
| Jan 27, 4:05 AM EST | Wind Chill Advisory | LWX | 32 hr |
| Jan 28, 12:39 PM EST | Wind Chill Advisory | LWX | 23 hr |
| Feb 1, 3:11 PM EST | Winter Storm Watch | LWX | 24 hr |
| Feb 2, 3:05 PM EST | Winter Storm Warning | LWX | 24 hr |
| Feb 3, 3:12 PM EST | Winter Storm Watch | LWX | 13 hr |
| Feb 4, 4:10 AM EST | Winter Storm Warning | LWX | 32 hr |
| Feb 4, 9:45 PM EST | Mesoscale Discussion | SPC | 6 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, 8:00 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 14, 1:40 PM EST | Winter Weather Advisory | LWX | 23 hr |
| Feb 17, 2:52 PM EST | Winter Weather Advisory | LWX | 14 hr |
| Feb 18, 9:44 PM EST | Freezing Rain Advisory | LWX | 13 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 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 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 15, 4:55 PM EDT | Red Flag Warning | LWX | 2 hr |
| Mar 16, 4:34 AM EDT | Winter Weather Advisory | LWX | 33 hr |
| Mar 24, 8:30 PM EDT | Winter Weather Advisory | LWX | 33 hr |
| Mar 29, 1:40 PM EDT | Winter Weather Advisory | LWX | 34 hr |
| Mar 30, 1:25 PM EDT | Areal Flood Warning | LWX | 10 hr |
| Mar 30, 10:03 PM EDT | Winter Storm Warning | LWX | 110 min |
| 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 17, 4:02 AM EDT | Freeze Watch | LWX | 10 hr |
| Apr 17, 2:13 PM EDT | Frost Advisory | LWX | 18 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 22, 7:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 23, 4:11 AM EDT | Fire Weather Watch | LWX | 16 hr |
| Apr 23, 4:11 AM EDT | Red Flag Warning | LWX | 16 hr |
| Apr 23, 8:09 PM EDT | Red Flag Warning | LWX | 22 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 30, 9:31 AM EDT | Areal Flood Warning | LWX | 32 hr |
| Apr 30, 1:39 PM EDT | Flash Flood Warning | LWX | 6 hr |
| May 10, 1:25 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| May 14, 2:30 PM EDT | Flash Flood Watch | LWX | 44 hr |
| May 15, 5:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| May 16, 12:46 AM EDT | Areal Flood Warning | LWX | 36 hr |
| May 16, 5:00 AM EDT | Areal Flood Warning | LWX | 17 hr |
| 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, 3:24 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| May 27, 1:43 PM EDT | Mesoscale Discussion | SPC | 62 min |
| May 27, 2:13 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 27, 4:40 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| Jun 9, 3:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 11:08 AM EDT | Flash Flood Watch | LWX | 15 hr |
| Jun 11, 1:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 11, 2:59 PM EDT | Tornado Watch | SPC | 6 hr |
| Jun 12, 3:48 AM EDT | Flash Flood Watch | LWX | 20 hr |
| Jun 13, 4:17 AM EDT | Flash Flood Watch | LWX | 17 hr |
| Jun 18, 9:37 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 18, 11:05 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Jun 18, 11:43 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Jun 19, 12:05 AM EDT | Severe Thunderstorm Warning | LWX | 55 min |
| Jun 19, 12:18 AM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 25, 1:49 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 5:44 PM EDT | Mesoscale Discussion | SPC | 3 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, 6:25 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 3, 3:49 AM EDT | Flash Flood Watch | LWX | 26 hr |
| Jul 3, 11:57 AM EDT | Mesoscale Discussion | SPC | 63 min |
| Jul 3, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 3, 3:25 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| Jul 3, 3:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 3, 4:04 PM EDT | Severe Thunderstorm Warning | LWX | 56 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, 6:00 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jul 8, 6:39 PM EDT | Severe Thunderstorm Warning | LWX | 96 min |
| Jul 8, 7:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 9, 3:00 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jul 9, 3:23 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 9, 3:40 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| Jul 9, 4:12 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 13, 7:49 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 13, 8:07 PM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| Jul 13, 8:24 PM EDT | Severe Thunderstorm Warning | LWX | 36 min |
| Jul 13, 8:46 PM EDT | Mesoscale Discussion | SPC | 89 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, 1:43 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 15, 1:52 PM EDT | Flash Flood Watch | LWX | 3 hr |
| Jul 15, 4:41 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 23, 5:47 PM EDT | Severe Thunderstorm Warning | LWX | 58 min |
| Jul 23, 6:42 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Jul 27, 6:09 PM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 27, 6:52 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 11:35 PM EDT | Severe Thunderstorm Warning | LWX | 55 min |
| Aug 3, 7:14 PM EDT | Severe Thunderstorm Warning | LWX | 35 min |
| Aug 3, 8:42 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Aug 4, 5:17 AM EDT | Dense Fog Advisory | LWX | 4 hr |
| Aug 12, 11:54 AM EDT | Flash Flood Watch | LWX | 14 hr |
| Aug 21, 3:30 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 7:30 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Aug 31, 1:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 2, 4:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Sep 2, 4:39 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 2, 5:15 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Sep 6, 2:07 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 6, 4:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Sep 6, 6:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 26, 5:26 AM EDT | Dense Fog Advisory | LWX | 4 hr |
| Oct 14, 1:24 AM EDT | Dense Fog Advisory | LWX | 4 hr |
| Oct 19, 1:23 PM EDT | Frost Advisory | LWX | 20 hr |
| Oct 26, 1:22 PM EDT | Frost Advisory | LWX | 20 hr |
| Nov 2, 2:51 AM EST | Freeze Warning | LWX | 29 hr |
| Nov 2, 2:51 AM EST | Wind Advisory | LWX | 7 hr |
| Nov 12, 1:35 AM EST | Dense Fog Advisory | LWX | 8 hr |
| Nov 24, 3:06 PM EST | Winter Storm Watch | LWX | 20 hr |
| Nov 25, 11:01 AM EST | Winter Storm Warning | LWX | 31 hr |
| Dec 1, 2:41 PM EST | Winter Weather Advisory | LWX | 34 hr |
| Dec 8, 2:38 PM EST | Winter Weather Advisory | LWX | 19 hr |
| Dec 9, 10:02 AM EST | Winter Weather Advisory | LWX | 7 hr |
| Dec 17, 12:34 AM EST | Dense Fog Advisory | LWX | 7 hr |
| Dec 21, 2:21 PM EST | Freezing Rain Advisory | LWX | 42 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 | 21 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 37 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 8 |
| Flood Watch | 1 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 9 |
| Winter Storm Watch | 7 |
| Freezing Rain Advisory | 4 |
| Winter Weather Advisory | 10 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 3 |
| Wind Chill Watch | 1 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 7 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
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.