Alert archive / Maryland / Calvert County
Weather alerts in Calvert County, Maryland, 2021
151 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Calvert County and its neighbors
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 151
- Warnings
- 45
- Watches
- 32
- Advisories
- 34
- Busiest month
- July32 alerts
- Busiest day
- July 9, 20217 alerts
Over time
By month
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 29, 3:10 PM EST | Winter Storm Watch | LWX | 23 hr |
| Jan 30, 9:02 AM EST | Winter Storm Warning | LWX | 69 hr |
| Jan 31, 6:50 PM EST | Winter Weather Advisory | LWX | 42 hr |
| Feb 5, 3:13 PM EST | Winter Storm Watch | LWX | 12 hr |
| Feb 6, 3:22 AM EST | Winter Weather Advisory | LWX | 33 hr |
| Feb 11, 3:28 AM EST | Winter Weather Advisory | LWX | 30 hr |
| Feb 11, 6:08 PM EST | Winter Storm Watch | LWX | 21 hr |
| Feb 12, 3:10 PM EST | Ice Storm Warning | LWX | 30 hr |
| Feb 12, 3:10 PM EST | Winter Weather Advisory | LWX | 43 hr |
| Feb 13, 10:02 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 16, 4:56 AM EST | Winter Storm Watch | LWX | 29 hr |
| Feb 17, 3:24 AM EST | Winter Storm Warning | LWX | 57 hr |
| Feb 17, 9:56 AM EST | Winter Weather Advisory | LWX | 27 hr |
| Feb 18, 10:23 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 19, 4:56 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Feb 28, 9:09 PM EST | Dense Fog Advisory | LWX | 8 hr |
| Mar 10, 3:43 PM EST | Fire Weather Watch | LWX | 12 hr |
| Mar 11, 3:28 AM EST | Red Flag Warning | LWX | 15 hr |
| Mar 14, 4:01 AM EDT | Red Flag Warning | LWX | 18 hr |
| Mar 18, 2:32 PM EDT | Wind Advisory | LWX | 20 hr |
| Mar 20, 3:12 AM EDT | Coastal Flood Advisory | LWX | 12 hr |
| Mar 24, 9:09 PM EDT | Dense Fog Advisory | LWX | 14 hr |
| Mar 28, 1:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 5:05 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 28, 7:05 PM EDT | Severe Thunderstorm Warning | LWX | 55 min |
| Apr 21, 12:22 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Apr 21, 12:28 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 21, 1:09 PM EDT | Severe Thunderstorm Warning | LWX | 30 min |
| Apr 21, 2:47 PM EDT | Wind Advisory | LWX | 5 hr |
| Apr 22, 12:03 PM EDT | Frost Advisory | LWX | 20 hr |
| Apr 29, 8:18 PM EDT | Wind Advisory | LWX | 30 hr |
| Apr 30, 5:11 PM EDT | Severe Thunderstorm Warning | LWX | 34 min |
| May 4, 1:51 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 3:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| May 4, 5:27 PM EDT | Severe Thunderstorm Warning | LWX | 33 min |
| May 4, 5:49 PM EDT | Severe Thunderstorm Warning | LWX | 56 min |
| May 5, 1:03 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 5, 3:17 PM EDT | Severe Thunderstorm Warning | LWX | 43 min |
| May 26, 1:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| May 26, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 26, 4:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 26, 5:52 PM EDT | Severe Thunderstorm Warning | LWX | 38 min |
| May 26, 6:34 PM EDT | Mesoscale Discussion | SPC | 116 min |
| May 26, 9:35 PM EDT | Severe Thunderstorm Warning | LWX | 27 min |
| May 28, 7:18 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 3, 1:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 3, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 4:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 4, 12:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 4, 12:59 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 4, 1:36 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Jun 4, 2:17 PM EDT | Severe Thunderstorm Warning | LWX | 43 min |
| Jun 4, 2:50 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Jun 4, 4:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 10, 2:53 AM EDT | Flash Flood Watch | LWX | 43 hr |
| Jun 11, 10:34 PM EDT | Coastal Flood Advisory | LWX | 22 hr |
| Jun 12, 8:43 PM EDT | Coastal Flood Advisory | LWX | 15 hr |
| Jun 13, 12:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Jun 14, 6:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 7:29 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 14, 10:09 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 2:20 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 30, 3:23 AM EDT | Heat Advisory | LWX | 16 hr |
| Jun 30, 2:23 PM EDT | Flash Flood Watch | LWX | 42 hr |
| Jul 1, 11:45 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 1, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 1, 2:36 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Jul 1, 3:20 PM EDT | Severe Thunderstorm Warning | LWX | 55 min |
| Jul 1, 9:11 PM EDT | Severe Thunderstorm Warning | LWX | 49 min |
| Jul 7, 11:15 AM EDT | Tropical Storm Watch | LWX | 12 hr |
| Jul 7, 3:12 PM EDT | Flash Flood Watch | LWX | 33 hr |
| Jul 7, 11:05 PM EDT | Tropical Storm Warning | LWX | 27 hr |
| Jul 8, 1:50 PM EDT | Tornado Watch | SPC | 11 hr |
| Jul 8, 11:13 PM EDT | Tornado Warning | LWX | 17 min |
| Jul 9, 2:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 9, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jul 9, 5:54 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Jul 9, 6:19 PM EDT | Severe Thunderstorm Warning | LWX | 41 min |
| Jul 9, 6:43 PM EDT | Severe Thunderstorm Warning | LWX | 32 min |
| Jul 9, 7:05 PM EDT | Areal Flood Warning | LWX | 3 hr |
| Jul 12, 1:32 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jul 14, 3:24 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 14, 5:24 PM EDT | Severe Thunderstorm Warning | LWX | 51 min |
| Jul 14, 6:03 PM EDT | Severe Thunderstorm Warning | LWX | 57 min |
| Jul 16, 2:57 PM EDT | Heat Advisory | LWX | 28 hr |
| Jul 17, 12:00 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 17, 1:13 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 17, 4:38 PM EDT | Mesoscale Discussion | SPC | 97 min |
| Jul 17, 6:54 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 10:32 AM EDT | Mesoscale Discussion | SPC | 58 min |
| Jul 21, 11:56 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 2:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 3:21 PM EDT | Severe Thunderstorm Warning | LWX | 24 min |
| Jul 28, 4:45 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Jul 29, 3:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 29, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | 40 min |
| Aug 10, 1:33 PM EDT | Excessive Heat Watch | LWX | 37 hr |
| Aug 10, 1:33 PM EDT | Heat Advisory | LWX | 29 hr |
| Aug 10, 2:30 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 10, 7:28 PM EDT | Severe Thunderstorm Warning | LWX | 62 min |
| Aug 11, 2:02 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 11, 3:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Aug 12, 2:15 AM EDT | Heat Advisory | LWX | 18 hr |
| Aug 12, 6:04 PM EDT | Heat Advisory | LWX | 25 hr |
| Aug 13, 1:11 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 13, 5:25 PM EDT | Severe Thunderstorm Warning | LWX | 50 min |
| Aug 13, 6:15 PM EDT | Severe Thunderstorm Warning | LWX | 45 min |
| Aug 13, 7:07 PM EDT | Severe Thunderstorm Warning | LWX | 39 min |
| Aug 13, 7:11 PM EDT | Severe Thunderstorm Warning | LWX | 34 min |
| Aug 13, 7:41 PM EDT | Severe Thunderstorm Warning | LWX | 21 min |
| Aug 14, 1:10 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 6:14 PM EDT | Flash Flood Watch | LWX | 10 hr |
| Aug 14, 10:28 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Aug 14, 10:44 PM EDT | Flash Flood Warning | LWX | 3 hr |
| Aug 14, 11:54 PM EDT | Areal Flood Warning | LWX | 4 hr |
| Aug 15, 1:25 AM EDT | Areal Flood Warning | LWX | 2 hr |
| Aug 18, 10:58 AM EDT | Mesoscale Discussion | SPC | 92 min |
| Aug 18, 11:37 AM EDT | Tornado Watch | SPC | 11 hr |
| Aug 19, 2:11 PM EDT | Flash Flood Watch | LWX | 28 hr |
| Aug 20, 11:20 AM EDT | Areal Flood Warning | LWX | 3 hr |
| Aug 27, 1:41 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 27, 6:28 PM EDT | Severe Thunderstorm Warning | LWX | 47 min |
| Aug 27, 10:08 PM EDT | Severe Thunderstorm Warning | LWX | 52 min |
| Aug 30, 4:54 AM EDT | Flash Flood Watch | LWX | 62 hr |
| Aug 30, 4:51 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Sep 1, 12:19 AM EDT | Mesoscale Discussion | SPC | 86 min |
| Sep 1, 10:14 AM EDT | Coastal Flood Advisory | LWX | 19 hr |
| Sep 1, 11:03 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 1, 11:46 AM EDT | Tornado Watch | SPC | 9 hr |
| Sep 1, 1:32 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 22, 3:14 AM EDT | Coastal Flood Advisory | LWX | 46 hr |
| Sep 22, 6:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 23, 3:13 AM EDT | Mesoscale Discussion | SPC | 5 hr |
| Oct 10, 2:29 PM EDT | Coastal Flood Advisory | LWX | 33 hr |
| Oct 14, 2:36 AM EDT | Dense Fog Advisory | LWX | 7 hr |
| Oct 15, 3:11 PM EDT | Coastal Flood Advisory | LWX | 30 hr |
| Oct 25, 6:26 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Oct 26, 2:55 AM EDT | Wind Advisory | LWX | 21 hr |
| Oct 27, 10:50 AM EDT | Coastal Flood Watch | LWX | 29 hr |
| Oct 28, 1:06 AM EDT | Coastal Flood Advisory | LWX | 15 hr |
| Oct 28, 4:29 AM EDT | Coastal Flood Warning | LWX | 72 hr |
| Oct 28, 2:24 PM EDT | High Wind Warning | LWX | 24 hr |
| Oct 28, 2:24 PM EDT | Wind Advisory | LWX | 26 hr |
| Oct 29, 3:36 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 30, 4:22 AM EDT | Coastal Flood Advisory | LWX | 49 hr |
| Nov 2, 3:22 AM EDT | Frost Advisory | LWX | 30 hr |
| Nov 3, 3:38 PM EDT | Frost Advisory | LWX | 17 hr |
| Nov 4, 4:06 AM EDT | Frost Advisory | LWX | 29 hr |
| Nov 26, 1:48 PM EST | Wind Advisory | LWX | 3 hr |
| Dec 6, 11:09 AM EST | Wind Advisory | LWX | 14 hr |
| Dec 10, 10:48 AM EST | Wind Advisory | LWX | 38 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 | 31 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 15 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 40 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 6 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 5 |
| Heat | |
| Excessive Heat Watch | 1 |
| Heat Advisory | 5 |
| Cold | |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Watch | 1 |
| Coastal Flood Advisory | 9 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20202022
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. Rebuilt daily.