Alert archive / Georgia / Montgomery County
Weather alerts in Montgomery County, Georgia, 2020
96 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Montgomery County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 96
- Warnings
- 23
- Watches
- 11
- Advisories
- 13
- Busiest month
- April25 alerts
- Busiest day
- February 6, 20205 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Montgomery County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 3 | 40% | 0 | ||
| Flash flood warnings | 3 | 3 | 0% | 2 | 100% | 13 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Atlanta, GA: tornado warnings | 60 | 19 | 68% | 46 | 57% | 10 min |
| NWS Atlanta, GA: severe thunderstorm warnings | 344 | 231 | 33% | 1,039 | 65% | 18 min |
| NWS Atlanta, GA: flash flood warnings | 74 | 36 | 51% | 209 | 67% | 137 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 3, 2:02 PM EST | Mesoscale Discussion | SPC | 118 min |
| Jan 3, 10:47 PM EST | Special Weather Statement | FFC | 43 min |
| Jan 10, 2:47 PM EST | Wind Advisory | FFC | 31 hr |
| Jan 11, 5:38 PM EST | Tornado Watch | SPC | 6 hr |
| Jan 11, 8:40 PM EST | Mesoscale Discussion | SPC | 95 min |
| Jan 11, 10:16 PM EST | Special Weather Statement | FFC | 44 min |
| Jan 12, 1:19 AM EST | Special Weather Statement | FFC | 26 min |
| Jan 13, 1:34 AM EST | Dense Fog Advisory | FFC | 7 hr |
| Jan 14, 5:15 AM EST | Dense Fog Advisory | FFC | 5 hr |
| Jan 18, 9:12 AM EST | River Flood Warning | JAX | 11 days |
| Jan 20, 8:29 AM EST | River Flood Warning | FFC | 62 hr |
| Feb 4, 2:59 PM EST | Flash Flood Watch | FFC | 56 hr |
| Feb 6, 8:27 AM EST | River Flood Warning | JAX | 45 days |
| Feb 6, 11:45 AM EST | Mesoscale Discussion | SPC | 90 min |
| Feb 6, 12:17 PM EST | Tornado Watch | SPC | 8 hr |
| Feb 6, 2:32 PM EST | Mesoscale Discussion | SPC | 58 min |
| Feb 6, 4:29 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Feb 10, 7:31 PM EST | River Flood Warning | FFC | 21 days |
| Feb 13, 10:46 AM EST | River Flood Warning | FFC | 7 days |
| Feb 13, 12:14 PM EST | Special Weather Statement | FFC | 46 min |
| Feb 13, 12:59 PM EST | Special Weather Statement | FFC | 46 min |
| Feb 18, 9:36 PM EST | River Flood Warning | FFC | 26 days |
| Feb 19, 9:15 PM EST | Flash Flood Watch | FFC | 22 hr |
| Feb 23, 4:31 PM EST | River Flood Warning | FFC | 23 days |
| Mar 3, 2:33 PM EST | Flash Flood Watch | FFC | 52 hr |
| Mar 4, 12:29 PM EST | Areal Flood Warning | FFC | 6 hr |
| Mar 4, 4:33 PM EST | Flash Flood Warning | FFC | 6 hr |
| Mar 4, 6:20 PM EST | Special Weather Statement | FFC | 25 min |
| Mar 4, 10:27 PM EST | Areal Flood Warning | FFC | 6 hr |
| Mar 5, 3:06 PM EST | Wind Advisory | FFC | 28 hr |
| Mar 18, 4:37 AM EDT | Dense Fog Advisory | FFC | 6 hr |
| Mar 31, 2:22 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 8, 7:48 PM EDT | Special Weather Statement | FFC | 42 min |
| Apr 9, 3:08 PM EDT | Red Flag Warning | FFC | 29 hr |
| Apr 11, 11:23 PM EDT | Wind Advisory | FFC | 35 hr |
| Apr 13, 2:39 AM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 13, 3:20 AM EDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 4:17 AM EDT | Severe Thunderstorm Warning | FFC | 73 min |
| Apr 13, 4:58 AM EDT | Severe Thunderstorm Warning | FFC | 77 min |
| Apr 18, 3:57 PM EDT | Flash Flood Watch | FFC | 40 hr |
| Apr 19, 8:47 AM EDT | River Flood Warning | JAX | 22 days |
| Apr 19, 12:06 PM EDT | Severe Thunderstorm Warning | FFC | 24 min |
| Apr 19, 12:30 PM EDT | Special Weather Statement | FFC | 30 min |
| Apr 19, 11:13 PM EDT | Tornado Watch | SPC | 10 hr |
| Apr 20, 12:11 AM EDT | Flash Flood Warning | FFC | 6 hr |
| Apr 20, 1:52 AM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 20, 2:58 AM EDT | Special Weather Statement | FFC | 32 min |
| Apr 23, 10:29 AM EDT | Mesoscale Discussion | SPC | 61 min |
| Apr 23, 10:52 AM EDT | Tornado Watch | SPC | 6 hr |
| Apr 23, 11:18 AM EDT | Severe Thunderstorm Warning | FFC | 42 min |
| Apr 23, 12:00 PM EDT | Special Weather Statement | FFC | 45 min |
| Apr 23, 12:45 PM EDT | Special Weather Statement | FFC | 30 min |
| Apr 24, 3:36 AM EDT | River Flood Warning | FFC | 5 days |
| Apr 26, 3:49 AM EDT | Wind Advisory | FFC | 17 hr |
| Apr 26, 9:07 AM EDT | River Flood Warning | FFC | 21 days |
| Apr 30, 1:57 AM EDT | Special Weather Statement | FFC | 33 min |
| Apr 30, 2:34 AM EDT | Special Weather Statement | FFC | 26 min |
| May 10, 2:48 PM EDT | Fire Weather Watch | FFC | 13 hr |
| May 11, 3:45 AM EDT | Red Flag Warning | FFC | 16 hr |
| Jun 9, 2:29 PM EDT | Special Weather Statement | FFC | 46 min |
| Jun 12, 12:54 PM EDT | Special Weather Statement | FFC | 36 min |
| Jun 24, 6:27 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 25, 7:22 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Jul 6, 6:53 PM EDT | Special Weather Statement | FFC | 52 min |
| Jul 6, 7:43 PM EDT | Special Weather Statement | FFC | 62 min |
| Jul 6, 8:45 PM EDT | Special Weather Statement | FFC | 60 min |
| Jul 6, 9:39 PM EDT | Special Weather Statement | FFC | 66 min |
| Jul 24, 6:11 PM EDT | Special Weather Statement | FFC | 34 min |
| Jul 25, 4:37 PM EDT | Special Weather Statement | FFC | 23 min |
| Aug 5, 11:07 PM EDT | Special Weather Statement | FFC | 68 min |
| Aug 8, 1:44 PM EDT | Special Weather Statement | FFC | 31 min |
| Aug 8, 2:12 PM EDT | Special Weather Statement | FFC | 48 min |
| Aug 8, 2:55 PM EDT | Special Weather Statement | FFC | 50 min |
| Aug 9, 5:48 PM EDT | Special Weather Statement | FFC | 57 min |
| Aug 9, 6:39 PM EDT | Special Weather Statement | FFC | 66 min |
| Aug 12, 3:30 PM EDT | Special Weather Statement | FFC | 45 min |
| Aug 12, 3:34 PM EDT | Severe Thunderstorm Warning | FFC | 41 min |
| Aug 18, 4:02 PM EDT | Special Weather Statement | FFC | 28 min |
| Aug 18, 4:33 PM EDT | Special Weather Statement | FFC | 42 min |
| Aug 20, 5:31 PM EDT | Special Weather Statement | FFC | 29 min |
| Aug 20, 6:00 PM EDT | Special Weather Statement | FFC | 30 min |
| Aug 20, 6:44 PM EDT | Special Weather Statement | FFC | 31 min |
| Aug 20, 6:52 PM EDT | Flash Flood Warning | FFC | 5 hr |
| Aug 24, 9:05 PM EDT | Mesoscale Discussion | SPC | 85 min |
| Aug 24, 11:02 PM EDT | Special Weather Statement | FFC | 28 min |
| Aug 24, 11:29 PM EDT | Special Weather Statement | FFC | 31 min |
| Aug 25, 2:43 AM EDT | Special Weather Statement | FFC | 32 min |
| Aug 25, 3:21 AM EDT | Special Weather Statement | FFC | 24 min |
| Sep 16, 2:49 PM EDT | Wind Advisory | FFC | 19 hr |
| Sep 23, 9:21 AM EDT | River Flood Warning | JAX | 21 days |
| Oct 7, 5:10 AM EDT | Dense Fog Advisory | FFC | 6 hr |
| Nov 2, 2:17 PM EST | Frost Advisory | FFC | 19 hr |
| Nov 15, 6:49 AM EST | Dense Fog Advisory | FFC | 4 hr |
| Nov 30, 3:17 AM EST | Special Weather Statement | FFC | 28 min |
| Nov 30, 3:55 AM EST | Wind Advisory | FFC | 9 hr |
| Dec 31, 6:22 AM EST | Dense Fog Advisory | FFC | 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 | 5 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 11 |
| Special Weather Statement | 38 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 3 |
| River Flood Warning | 11 |
| Flash Flood Watch | 4 |
| Cold | |
| Frost Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 2 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
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.