Alert archive / Maryland / Talbot County
Weather alerts in Talbot County, Maryland, 2020
161 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Talbot County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 161
- Warnings
- 35
- Watches
- 26
- Advisories
- 47
- Busiest month
- August43 alerts
- Busiest day
- April 13, 20208 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 1 tornado warnings covering Talbot County in 2020 had a tornado report inside them.
Talbot County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 1 | 0% | 0 | ||
| Severe thunderstorm warnings | 24 | 17 | 29% | 15 | 100% | 19 min |
| Flash flood warnings | 2 | 1 | 50% | 2 | 100% | 89 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Philadelphia/Mount Holly: tornado warnings | 36 | 9 | 75% | 27 | 59% | 12 min |
| NWS Philadelphia/Mount Holly: severe thunderstorm warnings | 308 | 233 | 24% | 1,626 | 89% | 26 min |
| NWS Philadelphia/Mount Holly: flash flood warnings | 65 | 45 | 31% | 286 | 94% | 96 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 |
|---|---|---|---|
| Dec 31, 7:26 PM EST | Coastal Flood Advisory | PHI | 7 hr |
| Jan 7, 2:27 PM EST | Wind Advisory | PHI | 28 hr |
| Jan 15, 1:18 PM EST | Wind Advisory | PHI | 30 hr |
| Feb 1, 2:02 AM EST | Dense Fog Advisory | PHI | 9 hr |
| Feb 5, 2:56 PM EST | Flood Watch | PHI | 29 hr |
| Feb 6, 2:55 PM EST | Wind Advisory | PHI | 27 hr |
| Feb 7, 8:03 AM EST | Coastal Flood Advisory | PHI | 11 hr |
| Feb 7, 8:49 AM EST | Severe Thunderstorm Warning | PHI | 56 min |
| Feb 7, 9:50 AM EST | Mesoscale Discussion | SPC | 85 min |
| Feb 26, 12:53 AM EST | Dense Fog Advisory | PHI | 8 hr |
| Feb 27, 12:40 AM EST | Special Weather Statement | PHI | 50 min |
| Mar 3, 10:52 PM EST | Mesoscale Discussion | SPC | 113 min |
| Apr 4, 9:06 PM EDT | Coastal Flood Advisory | PHI | 22 hr |
| Apr 8, 4:21 AM EDT | Special Weather Statement | PHI | 39 min |
| Apr 8, 4:56 AM EDT | Special Weather Statement | PHI | 64 min |
| Apr 8, 7:19 PM EDT | Wind Advisory | PHI | 24 hr |
| Apr 9, 6:53 AM EDT | Special Weather Statement | PHI | 37 min |
| Apr 9, 11:09 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Apr 9, 12:01 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 9, 12:57 PM EDT | Severe Thunderstorm Warning | PHI | 33 min |
| Apr 9, 3:32 PM EDT | Wind Advisory | PHI | 27 hr |
| Apr 11, 3:32 PM EDT | High Wind Watch | PHI | 21 hr |
| Apr 12, 12:25 PM EDT | High Wind Warning | PHI | 29 hr |
| Apr 12, 3:18 PM EDT | Coastal Flood Advisory | PHI | 30 hr |
| Apr 13, 4:45 AM EDT | Special Weather Statement | PHI | 30 min |
| Apr 13, 5:12 AM EDT | Special Weather Statement | PHI | 33 min |
| Apr 13, 5:41 AM EDT | Special Weather Statement | PHI | 34 min |
| Apr 13, 6:42 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Apr 13, 10:34 AM EDT | Mesoscale Discussion | SPC | 86 min |
| Apr 13, 11:33 AM EDT | Tornado Watch | SPC | 5 hr |
| Apr 13, 1:20 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Apr 13, 2:50 PM EDT | Severe Thunderstorm Warning | PHI | 55 min |
| Apr 15, 2:52 AM EDT | Freeze Watch | PHI | 36 hr |
| Apr 16, 3:19 PM EDT | Freeze Warning | PHI | 18 hr |
| Apr 21, 3:34 AM EDT | Freeze Warning | PHI | 28 hr |
| Apr 21, 12:23 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 21, 1:27 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Apr 21, 2:04 PM EDT | Severe Thunderstorm Warning | PHI | 56 min |
| Apr 21, 2:46 PM EDT | Severe Thunderstorm Warning | PHI | 74 min |
| Apr 29, 3:14 AM EDT | Flood Watch | PHI | 48 hr |
| Apr 29, 3:15 PM EDT | Wind Advisory | PHI | 29 hr |
| Apr 30, 4:16 AM EDT | Coastal Flood Advisory | PHI | 22 hr |
| Apr 30, 3:20 PM EDT | Special Weather Statement | PHI | 40 min |
| May 25, 9:01 PM EDT | Dense Fog Advisory | PHI | 12 hr |
| May 26, 3:21 PM EDT | Dense Fog Advisory | PHI | 17 hr |
| Jun 4, 9:15 PM EDT | Special Weather Statement | PHI | 45 min |
| Jun 4, 9:54 PM EDT | Special Weather Statement | PHI | 36 min |
| Jun 10, 3:16 AM EDT | Heat Advisory | PHI | 15 hr |
| Jun 20, 12:32 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Jun 22, 5:37 PM EDT | Special Weather Statement | PHI | 38 min |
| Jun 25, 6:09 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Jun 27, 5:30 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Jun 27, 5:37 PM EDT | Severe Thunderstorm Warning | PHI | 23 min |
| Jul 1, 1:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 5, 1:50 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Jul 6, 12:33 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 6, 1:38 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 6, 4:33 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 6, 6:25 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 7:41 PM EDT | Severe Thunderstorm Warning | PHI | 64 min |
| Jul 6, 7:48 PM EDT | Areal Flood Advisory | PHI | 117 min |
| Jul 6, 8:21 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Jul 6, 8:39 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 8:41 PM EDT | Areal Flood Advisory | PHI | 2 hr |
| Jul 7, 5:21 PM EDT | Areal Flood Advisory | PHI | 55 min |
| Jul 9, 3:00 PM EDT | Flash Flood Watch | PHI | 30 hr |
| Jul 10, 9:21 AM EDT | Areal Flood Advisory | PHI | 8 hr |
| Jul 16, 3:43 PM EDT | Excessive Heat Watch | PHI | 36 hr |
| Jul 18, 3:55 AM EDT | Excessive Heat Warning | PHI | 64 hr |
| Jul 20, 7:57 PM EDT | Heat Advisory | PHI | 48 hr |
| Jul 21, 9:25 PM EDT | Special Weather Statement | PHI | 35 min |
| Jul 21, 9:39 PM EDT | Severe Thunderstorm Warning | PHI | 51 min |
| Jul 22, 10:48 AM EDT | Mesoscale Discussion | SPC | 117 min |
| Jul 22, 2:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 22, 4:47 PM EDT | Severe Thunderstorm Warning | PHI | 43 min |
| Jul 22, 4:55 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 22, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | 52 min |
| Jul 22, 7:01 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Jul 27, 3:06 PM EDT | Heat Advisory | PHI | 29 hr |
| Jul 28, 3:19 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Jul 30, 12:24 PM EDT | Heat Advisory | PHI | 6 hr |
| Jul 30, 8:29 PM EDT | Special Weather Statement | PHI | 46 min |
| Aug 1, 3:20 PM EDT | Heat Advisory | PHI | 29 hr |
| Aug 1, 7:05 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Aug 2, 3:33 PM EDT | Flash Flood Watch | PHI | 48 hr |
| Aug 2, 4:25 PM EDT | Coastal Flood Watch | PHI | 24 hr |
| Aug 2, 5:04 PM EDT | Tropical Storm Watch | PHI | 18 hr |
| Aug 3, 5:08 AM EDT | Tropical Storm Warning | PHI | 39 hr |
| Aug 3, 3:40 PM EDT | Special Weather Statement | PHI | 35 min |
| Aug 3, 4:26 PM EDT | Coastal Flood Warning | PHI | 27 hr |
| Aug 3, 4:26 PM EDT | Coastal Flood Advisory | PHI | 38 hr |
| Aug 4, 1:33 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Aug 4, 1:41 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 4, 2:10 AM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 4, 2:26 AM EDT | Tornado Watch | SPC | 9 hr |
| Aug 4, 5:15 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 4, 7:50 AM EDT | Flash Flood Warning | PHI | 4 hr |
| Aug 4, 8:13 AM EDT | Tornado Warning | PHI | 26 min |
| Aug 4, 8:03 PM EDT | Special Weather Statement | PHI | 42 min |
| Aug 4, 8:21 PM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Aug 6, 3:37 AM EDT | Flash Flood Watch | PHI | 44 hr |
| Aug 6, 5:36 AM EDT | Severe Thunderstorm Warning | PHI | 39 min |
| Aug 6, 5:56 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 6:13 AM EDT | Severe Thunderstorm Warning | PHI | 62 min |
| Aug 6, 6:43 AM EDT | Areal Flood Advisory | PHI | 3 hr |
| Aug 7, 8:35 PM EDT | Areal Flood Advisory | PHI | 4 hr |
| Aug 11, 3:48 PM EDT | Flash Flood Watch | PHI | 28 hr |
| Aug 12, 1:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 4:11 PM EDT | Areal Flood Warning | PHI | 3 hr |
| Aug 13, 3:02 AM EDT | Flash Flood Watch | PHI | 17 hr |
| Aug 13, 11:28 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Aug 17, 8:01 PM EDT | Special Weather Statement | PHI | 44 min |
| Aug 25, 3:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Aug 25, 3:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 25, 7:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Aug 25, 7:52 PM EDT | Special Weather Statement | PHI | 38 min |
| Aug 25, 8:28 PM EDT | Severe Thunderstorm Warning | PHI | 47 min |
| Aug 25, 9:12 PM EDT | Severe Thunderstorm Warning | PHI | 48 min |
| Aug 27, 6:25 PM EDT | Severe Thunderstorm Warning | PHI | 50 min |
| Aug 28, 1:37 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 28, 7:50 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 28, 11:37 PM EDT | Special Weather Statement | PHI | 38 min |
| Aug 29, 8:16 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Aug 29, 12:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 29, 2:02 PM EDT | Areal Flood Advisory | PHI | 3 hr |
| Sep 2, 3:37 PM EDT | Mesoscale Discussion | SPC | 53 min |
| Sep 2, 6:43 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 2, 8:20 PM EDT | Mesoscale Discussion | SPC | 115 min |
| Sep 2, 8:47 PM EDT | Severe Thunderstorm Warning | PHI | 58 min |
| Sep 2, 10:08 PM EDT | Severe Thunderstorm Warning | PHI | 67 min |
| Sep 3, 3:06 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Sep 3, 3:42 PM EDT | Tornado Watch | SPC | 6 hr |
| Sep 3, 5:47 PM EDT | Severe Thunderstorm Warning | PHI | 73 min |
| Sep 3, 6:18 PM EDT | Mesoscale Discussion | SPC | 117 min |
| Sep 3, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | 57 min |
| Sep 9, 5:08 PM EDT | Flash Flood Watch | PHI | 29 hr |
| Sep 25, 8:01 AM EDT | Dense Fog Advisory | PHI | 119 min |
| Sep 30, 12:12 AM EDT | Areal Flood Advisory | PHI | 4 hr |
| Oct 17, 3:46 AM EDT | Frost Advisory | PHI | 28 hr |
| Oct 20, 10:49 PM EDT | Dense Fog Advisory | PHI | 11 hr |
| Oct 22, 12:25 AM EDT | Dense Fog Advisory | PHI | 9 hr |
| Oct 23, 2:54 AM EDT | Dense Fog Advisory | PHI | 6 hr |
| Oct 28, 3:10 PM EDT | Flood Watch | PHI | 27 hr |
| Oct 29, 3:21 PM EDT | Freeze Warning | PHI | 42 hr |
| Oct 31, 7:51 PM EDT | Frost Advisory | PHI | 11 hr |
| Nov 1, 3:10 AM EST | Wind Advisory | PHI | 36 hr |
| Nov 6, 11:25 PM EST | Dense Fog Advisory | PHI | 10 hr |
| Nov 11, 10:54 PM EST | Areal Flood Advisory | PHI | 3 hr |
| Nov 12, 1:43 AM EST | Areal Flood Advisory | PHI | 2 hr |
| Nov 15, 12:01 PM EST | Coastal Flood Advisory | PHI | 11 hr |
| Nov 15, 3:33 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Nov 15, 5:35 PM EST | Severe Thunderstorm Watch | SPC | 5 hr |
| Nov 15, 6:52 PM EST | Mesoscale Discussion | SPC | 113 min |
| Nov 15, 7:40 PM EST | Severe Thunderstorm Warning | PHI | 80 min |
| Nov 15, 8:57 PM EST | Severe Thunderstorm Warning | PHI | 63 min |
| Nov 30, 12:26 PM EST | Mesoscale Discussion | SPC | 3 hr |
| Nov 30, 1:07 PM EST | Tornado Watch | SPC | 6 hr |
| Nov 30, 3:02 PM EST | Mesoscale Discussion | SPC | 88 min |
| Dec 5, 2:14 AM EST | Areal Flood Advisory | PHI | 3 hr |
| Dec 23, 3:23 PM EST | Wind Advisory | PHI | 38 hr |
| Dec 25, 12:31 AM EST | Severe Thunderstorm Warning | PHI | 44 min |
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 | 24 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 35 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| Flash Flood Watch | 6 |
| Flood Watch | 3 |
| Areal Flood Advisory | 16 |
| Heat | |
| Excessive Heat Warning | 1 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 8 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| Coastal Flood Warning | 1 |
| Coastal Flood Watch | 1 |
| Coastal Flood Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.