Alert archive / Maryland / Garrett County
Weather alerts in Garrett County, Maryland, 2019
68 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Garrett County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 68
- Warnings
- 20
- Watches
- 8
- Advisories
- 1
- Busiest month
- May16 alerts
- Busiest day
- June 30, 20196 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Garrett County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 3 | 50% | 3 | 100% | 15 min |
| Flash flood warnings | 9 | 5 | 44% | 8 | 88% | 97 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pittsburgh, PA: tornado warnings | 19 | 7 | 63% | 16 | 50% | 8 min |
| NWS Pittsburgh, PA: severe thunderstorm warnings | 311 | 231 | 26% | 611 | 82% | 19 min |
| NWS Pittsburgh, PA: flash flood warnings | 105 | 80 | 24% | 282 | 87% | 67 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 8, 5:16 PM EST | Special Weather Statement | PBZ | 59 min |
| Jan 8, 6:15 PM EST | Special Weather Statement | PBZ | 45 min |
| Feb 12, 4:16 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Feb 20, 5:55 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Apr 12, 7:00 PM EDT | Severe Thunderstorm Warning | PBZ | 30 min |
| Apr 14, 6:46 PM EDT | Tornado Watch | SPC | 8 hr |
| May 3, 2:21 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 3, 4:17 PM EDT | Special Weather Statement | PBZ | 28 min |
| May 3, 4:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| May 19, 1:27 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 19, 3:10 PM EDT | Special Weather Statement | PBZ | 35 min |
| May 19, 10:40 PM EDT | Special Weather Statement | PBZ | 20 min |
| May 23, 11:52 AM EDT | Mesoscale Discussion | SPC | 83 min |
| May 23, 5:37 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 23, 5:44 PM EDT | Mesoscale Discussion | SPC | 61 min |
| May 23, 8:02 PM EDT | Mesoscale Discussion | SPC | 118 min |
| May 25, 12:53 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 4:50 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 25, 8:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| May 25, 8:50 PM EDT | Severe Thunderstorm Warning | PBZ | 25 min |
| May 26, 1:45 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 29, 11:52 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 2, 12:33 PM EDT | Special Weather Statement | PBZ | 27 min |
| Jun 2, 12:53 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 2, 2:16 PM EDT | Severe Thunderstorm Warning | PBZ | 44 min |
| Jun 2, 2:34 PM EDT | Severe Thunderstorm Warning | PBZ | 26 min |
| Jun 2, 3:33 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jun 13, 3:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Jun 24, 7:17 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 24, 9:34 PM EDT | Special Weather Statement | PBZ | 41 min |
| Jun 29, 10:18 PM EDT | Severe Thunderstorm Warning | PBZ | 42 min |
| Jun 29, 10:33 PM EDT | Flash Flood Warning | PBZ | 10 hr |
| Jun 30, 12:26 AM EDT | Flash Flood Warning | PBZ | 3 hr |
| Jun 30, 3:14 AM EDT | Flash Flood Warning | PBZ | 9 hr |
| Jun 30, 3:57 AM EDT | River Flood Warning | LWX | 8 hr |
| Jun 30, 11:57 AM EDT | Areal Flood Warning | PBZ | 6 hr |
| Jul 2, 3:10 PM EDT | Mesoscale Discussion | SPC | 95 min |
| Jul 4, 12:12 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Jul 5, 8:15 PM EDT | Flash Flood Warning | PBZ | 70 min |
| Jul 11, 10:45 AM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 11, 1:22 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Jul 11, 1:33 PM EDT | Special Weather Statement | PBZ | 27 min |
| Jul 11, 2:04 PM EDT | Special Weather Statement | PBZ | 26 min |
| Jul 11, 2:29 PM EDT | Flash Flood Warning | PBZ | 3 hr |
| Jul 11, 3:07 PM EDT | Flash Flood Warning | PBZ | 118 min |
| Jul 21, 6:07 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 31, 2:22 PM EDT | Special Weather Statement | PBZ | 23 min |
| Jul 31, 4:15 PM EDT | Special Weather Statement | PBZ | 15 min |
| Aug 2, 1:33 PM EDT | Special Weather Statement | PBZ | 42 min |
| Aug 2, 1:50 PM EDT | Flash Flood Warning | PBZ | 88 min |
| Aug 2, 5:52 PM EDT | Areal Flood Advisory | PBZ | 3 hr |
| Aug 8, 12:37 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 15, 1:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 11:37 AM EDT | Special Weather Statement | PBZ | 23 min |
| Aug 20, 4:28 PM EDT | Special Weather Statement | PBZ | 32 min |
| Aug 20, 4:56 PM EDT | Severe Thunderstorm Warning | PBZ | 23 min |
| Sep 11, 3:08 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 11, 3:19 PM EDT | Special Weather Statement | PBZ | 26 min |
| Sep 14, 1:46 PM EDT | Mesoscale Discussion | SPC | 119 min |
| Sep 28, 5:51 PM EDT | Mesoscale Discussion | SPC | 114 min |
| Oct 31, 11:12 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 31, 2:56 PM EDT | Tornado Watch | SPC | 10 hr |
| Oct 31, 3:34 PM EDT | Special Weather Statement | PBZ | 41 min |
| Dec 1, 5:45 AM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 16, 6:46 PM EST | Areal Flood Warning | PBZ | 9 hr |
| Dec 17, 3:54 AM EST | Areal Flood Warning | PBZ | 6 hr |
| Dec 18, 6:16 PM EST | Special Weather Statement | PBZ | 44 min |
| Dec 18, 6:54 PM EST | Snow Squall Warning | PBZ | 51 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 | 6 |
| Severe Thunderstorm Watch | 6 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 17 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 9 |
| River Flood Warning | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Snow Squall Warning | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.