Alert archive / Maryland / Cecil County
Weather alerts in Cecil County, Maryland, 2023
115 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cecil County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 115
- Warnings
- 27
- Watches
- 27
- Advisories
- 19
- Busiest month
- July35 alerts
- Busiest day
- September 9, 20237 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 2 tornado warnings covering Cecil County in 2023 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 0 minutes after it went out.
Cecil County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 1 | 100% | 0 min |
| Severe thunderstorm warnings | 16 | 11 | 31% | 21 | 90% | 23 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Baltimore/Washington: tornado warnings | 15 | 1 | 93% | 2 | 50% | 0 min |
| NWS Baltimore/Washington: severe thunderstorm warnings | 370 | 286 | 23% | 992 | 89% | 21 min |
| NWS Baltimore/Washington: flash flood warnings | 48 | 23 | 52% | 47 | 98% | 48 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 |
|---|---|---|---|
| Feb 17, 3:21 PM EST | Wind Advisory | LWX | 4 hr |
| Feb 21, 2:22 PM EST | Mesoscale Discussion | SPC | 53 min |
| Mar 3, 12:33 PM EST | Wind Advisory | LWX | 26 hr |
| Mar 13, 2:38 PM EDT | Wind Advisory | LWX | 33 hr |
| Mar 25, 11:17 PM EDT | Dense Fog Advisory | LWX | 5 hr |
| Mar 31, 2:29 PM EDT | High Wind Warning | LWX | 35 hr |
| Apr 1, 4:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 1, 6:27 PM EDT | Severe Thunderstorm Warning | LWX | 48 min |
| Apr 1, 6:35 PM EDT | Tornado Warning | LWX | 25 min |
| Apr 1, 6:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Apr 1, 7:01 PM EDT | Severe Thunderstorm Warning | LWX | 29 min |
| Apr 2, 1:13 PM EDT | Frost Advisory | LWX | 20 hr |
| Apr 6, 2:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Apr 6, 2:58 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 6, 6:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 8:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 8, 3:21 AM EDT | Frost Advisory | LWX | 30 hr |
| Apr 9, 9:08 AM EDT | Freeze Warning | LWX | 24 hr |
| Apr 11, 3:46 PM EDT | Fire Weather Watch | LWX | 17 hr |
| Apr 12, 9:01 AM EDT | Red Flag Warning | LWX | 11 hr |
| Apr 17, 12:25 PM EDT | Fire Weather Watch | LWX | 15 hr |
| Apr 22, 10:07 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Apr 22, 2:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Apr 22, 2:47 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 3, 10:07 PM EDT | Coastal Flood Advisory | LWX | 44 hr |
| Jun 12, 12:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 16, 10:36 AM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Jun 16, 10:50 AM EDT | Mesoscale Discussion | SPC | 55 min |
| Jun 16, 11:06 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 12:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 2:20 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 26, 8:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 27, 1:54 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Jun 27, 2:46 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Jul 2, 4:31 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 2, 7:42 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 3, 2:55 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 4:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 3, 8:07 PM EDT | Severe Thunderstorm Warning | LWX | 53 min |
| Jul 3, 8:29 PM EDT | Mesoscale Discussion | SPC | 91 min |
| Jul 3, 11:42 PM EDT | Areal Flood Warning | LWX | 2 hr |
| Jul 8, 3:23 PM EDT | Flood Watch | LWX | 25 hr |
| Jul 9, 10:28 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Jul 9, 11:06 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 9, 1:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 9, 4:08 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 14, 2:02 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 3:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 6:38 PM EDT | Flood Watch | LWX | 23 hr |
| Jul 19, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 21, 4:26 AM EDT | Mesoscale Discussion | SPC | 94 min |
| Jul 25, 10:58 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 12:13 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 25, 12:44 PM EDT | Flood Watch | LWX | 9 hr |
| Jul 26, 9:01 AM EDT | Heat Advisory | LWX | 35 hr |
| Jul 26, 1:57 PM EDT | Excessive Heat Watch | LWX | 24 hr |
| Jul 27, 11:40 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 1:48 PM EDT | Excessive Heat Warning | LWX | 29 hr |
| Jul 27, 3:18 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 27, 4:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jul 28, 8:33 AM EDT | Heat Advisory | LWX | 34 hr |
| Jul 28, 4:48 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 28, 7:41 PM EDT | Severe Thunderstorm Warning | LWX | 79 min |
| Jul 28, 7:52 PM EDT | Tornado Warning | LWX | 26 min |
| Jul 28, 7:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jul 29, 1:56 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Jul 29, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 29, 4:30 PM EDT | Severe Thunderstorm Warning | LWX | 75 min |
| Jul 29, 4:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 1:20 PM EDT | Tornado Watch | SPC | 11 hr |
| Aug 7, 2:31 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Aug 7, 5:01 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Aug 7, 5:06 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Aug 7, 5:35 PM EDT | Severe Thunderstorm Warning | LWX | 55 min |
| Aug 10, 12:25 PM EDT | Severe Thunderstorm Warning | LWX | 35 min |
| Aug 10, 12:51 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Aug 14, 1:55 PM EDT | Flood Watch | LWX | 9 hr |
| Aug 15, 1:28 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 15, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 5, 12:36 AM EDT | Heat Advisory | LWX | 18 hr |
| Sep 6, 3:11 AM EDT | Heat Advisory | LWX | 16 hr |
| Sep 7, 11:58 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 7, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 7, 4:48 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Sep 7, 6:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 7, 6:49 PM EDT | Severe Thunderstorm Warning | LWX | 26 min |
| Sep 7, 7:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 8, 2:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 8, 3:11 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 8, 6:34 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 8, 8:22 PM EDT | Severe Thunderstorm Warning | LWX | 53 min |
| Sep 8, 9:45 PM EDT | Severe Thunderstorm Warning | LWX | 30 min |
| Sep 8, 10:31 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Sep 9, 2:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 9, 4:23 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 9, 6:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 9, 6:36 PM EDT | Severe Thunderstorm Warning | LWX | 54 min |
| Sep 9, 8:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 12, 1:44 PM EDT | Flood Watch | LWX | 13 hr |
| Sep 13, 12:43 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Sep 13, 12:44 AM EDT | Severe Thunderstorm Warning | LWX | 31 min |
| Sep 22, 4:20 AM EDT | Wind Advisory | LWX | 39 hr |
| Sep 24, 10:15 AM EDT | Coastal Flood Advisory | LWX | 17 hr |
| Oct 23, 9:52 AM EDT | Frost Advisory | LWX | 24 hr |
| Oct 31, 3:48 AM EDT | Freeze Watch | LWX | 23 hr |
| Nov 1, 2:26 AM EDT | Freeze Warning | LWX | 32 hr |
| Nov 20, 7:06 PM EST | Coastal Flood Advisory | LWX | 46 hr |
| Dec 2, 2:13 AM EST | Dense Fog Advisory | LWX | 9 hr |
| Dec 2, 7:00 PM EST | Dense Fog Advisory | LWX | 7 hr |
| Dec 8, 8:16 PM EST | Flood Watch | LWX | 46 hr |
| Dec 9, 3:07 AM EST | Dense Fog Advisory | LWX | 8 hr |
| Dec 16, 1:32 PM EST | Flood Watch | LWX | 39 hr |
| Dec 17, 3:51 AM EST | Wind Advisory | LWX | 34 hr |
| Dec 18, 1:05 AM EST | Areal Flood Warning | LWX | 8 hr |
| Dec 27, 9:37 PM EST | Areal Flood Warning | LWX | 7 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 | 16 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 15 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 42 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 1 |
| Flood Watch | 7 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 4 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Coast and beach | |
| Coastal Flood Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.