Alert archive / Georgia / Polk County
Weather alerts in Polk County, Georgia, 2020
98 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Polk County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 98
- Warnings
- 21
- Watches
- 17
- Advisories
- 21
- Busiest month
- February18 alerts
- Busiest day
- April 13, 20207 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Polk County in 2020 had a tornado report inside them.
Polk County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 11 | 10 | 9% | 14 | 64% | 20 min |
| Flash flood warnings | 2 | 1 | 50% | 0 |
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, 5:40 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 10, 2:47 PM EST | Wind Advisory | FFC | 31 hr |
| Jan 11, 1:20 PM EST | Mesoscale Discussion | SPC | 85 min |
| Jan 11, 1:42 PM EST | Tornado Watch | SPC | 7 hr |
| Jan 11, 3:53 PM EST | Severe Thunderstorm Warning | FFC | 52 min |
| Jan 11, 4:16 PM EST | Mesoscale Discussion | SPC | 89 min |
| Jan 11, 4:19 PM EST | Severe Thunderstorm Warning | FFC | 41 min |
| Jan 13, 10:12 AM EST | Flash Flood Watch | FFC | 36 hr |
| Jan 15, 5:11 AM EST | Dense Fog Advisory | FFC | 5 hr |
| Feb 4, 2:59 PM EST | Flash Flood Watch | FFC | 56 hr |
| Feb 6, 4:27 AM EST | Tornado Watch | SPC | 9 hr |
| Feb 6, 5:07 AM EST | Special Weather Statement | FFC | 23 min |
| Feb 6, 6:05 AM EST | Special Weather Statement | FFC | 40 min |
| Feb 6, 8:02 AM EST | Flash Flood Warning | FFC | 6 hr |
| Feb 6, 10:41 AM EST | River Flood Warning | FFC | 21 days |
| Feb 6, 1:57 PM EST | Areal Flood Warning | FFC | 4 hr |
| Feb 7, 3:47 PM EST | Winter Weather Advisory | FFC | 28 hr |
| Feb 9, 12:54 AM EST | Freezing Fog Advisory | FFC | 8 hr |
| Feb 9, 3:08 AM EST | Flood Watch | FFC | 33 hr |
| Feb 9, 9:10 AM EST | Freezing Fog Advisory | FFC | 50 min |
| Feb 10, 11:41 AM EST | Flash Flood Watch | FFC | 23 hr |
| Feb 12, 3:43 AM EST | Flash Flood Watch | FFC | 33 hr |
| Feb 13, 4:51 AM EST | Special Weather Statement | FFC | 24 min |
| Feb 13, 5:14 AM EST | Special Weather Statement | FFC | 46 min |
| Feb 13, 6:16 AM EST | Special Weather Statement | FFC | 119 min |
| Feb 17, 12:38 AM EST | Dense Fog Advisory | FFC | 10 hr |
| Feb 18, 11:58 AM EST | Flash Flood Watch | FFC | 16 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 24, 2:41 AM EDT | Dense Fog Advisory | FFC | 7 hr |
| Mar 24, 8:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Mar 24, 8:44 PM EDT | Tornado Watch | SPC | 3 hr |
| Mar 24, 10:45 PM EDT | Mesoscale Discussion | SPC | 60 min |
| Mar 24, 10:55 PM EDT | Severe Thunderstorm Warning | FFC | 50 min |
| Apr 8, 3:29 PM EDT | Wind Advisory | FFC | 29 hr |
| Apr 9, 4:11 AM EDT | Special Weather Statement | FFC | 34 min |
| Apr 9, 3:08 PM EDT | Red Flag Warning | FFC | 29 hr |
| Apr 10, 3:57 PM EDT | Frost Advisory | FFC | 17 hr |
| Apr 11, 11:23 PM EDT | Wind Advisory | FFC | 35 hr |
| Apr 12, 7:10 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Apr 12, 7:22 PM EDT | Tornado Watch | SPC | 5 hr |
| Apr 12, 8:41 PM EDT | Mesoscale Discussion | SPC | 64 min |
| Apr 12, 11:17 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Apr 12, 11:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Apr 12, 11:45 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 13, 12:04 AM EDT | Severe Thunderstorm Warning | FFC | 56 min |
| Apr 13, 12:54 AM EDT | Severe Thunderstorm Warning | FFC | 81 min |
| Apr 13, 5:42 AM EDT | River Flood Warning | FFC | 4 hr |
| Apr 18, 3:57 PM EDT | Flash Flood Watch | FFC | 40 hr |
| Apr 26, 3:49 AM EDT | Wind Advisory | FFC | 17 hr |
| May 6, 3:39 AM EDT | Wind Advisory | FFC | 17 hr |
| May 9, 3:37 AM EDT | Frost Advisory | FFC | 28 hr |
| Jun 5, 10:53 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 6:13 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Jun 14, 6:27 PM EDT | Special Weather Statement | FFC | 33 min |
| Jun 14, 6:47 PM EDT | Special Weather Statement | FFC | 28 min |
| Jun 14, 7:15 PM EDT | Severe Thunderstorm Warning | FFC | 45 min |
| Jun 21, 3:49 PM EDT | Special Weather Statement | FFC | 41 min |
| Jun 21, 4:09 PM EDT | Severe Thunderstorm Warning | FFC | 18 min |
| Jun 22, 5:21 PM EDT | Special Weather Statement | FFC | 24 min |
| Jun 22, 5:43 PM EDT | Special Weather Statement | FFC | 32 min |
| Jun 25, 11:58 PM EDT | Special Weather Statement | FFC | 47 min |
| Jul 4, 5:09 PM EDT | Special Weather Statement | FFC | 36 min |
| Jul 4, 5:44 PM EDT | Severe Thunderstorm Warning | FFC | 46 min |
| Jul 18, 4:26 PM EDT | Special Weather Statement | FFC | 34 min |
| Jul 20, 9:16 PM EDT | Special Weather Statement | FFC | 29 min |
| Jul 20, 9:45 PM EDT | Special Weather Statement | FFC | 30 min |
| Jul 20, 10:15 PM EDT | Special Weather Statement | FFC | 15 min |
| Jul 22, 8:42 PM EDT | Severe Thunderstorm Warning | FFC | 33 min |
| Jul 25, 4:34 PM EDT | Special Weather Statement | FFC | 26 min |
| Jul 25, 5:12 PM EDT | Special Weather Statement | FFC | 33 min |
| Jul 25, 5:36 PM EDT | Severe Thunderstorm Warning | FFC | 39 min |
| Jul 27, 5:41 PM EDT | Special Weather Statement | FFC | 34 min |
| Aug 3, 12:42 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 2:08 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 10, 2:17 PM EDT | Mesoscale Discussion | SPC | 118 min |
| Aug 10, 4:01 PM EDT | Special Weather Statement | FFC | 44 min |
| Aug 12, 1:13 PM EDT | Special Weather Statement | FFC | 32 min |
| Aug 25, 2:23 PM EDT | Flash Flood Warning | FFC | 2 hr |
| Aug 30, 6:36 PM EDT | Special Weather Statement | FFC | 24 min |
| Sep 15, 3:24 PM EDT | Flash Flood Watch | FFC | 47 hr |
| Sep 26, 3:30 AM EDT | Dense Fog Advisory | FFC | 7 hr |
| Oct 10, 1:47 PM EDT | Tornado Watch | SPC | 7 hr |
| Oct 10, 6:26 PM EDT | Special Weather Statement | FFC | 34 min |
| Oct 10, 6:44 PM EDT | Severe Thunderstorm Warning | FFC | 31 min |
| Oct 10, 6:55 PM EDT | Tornado Warning | FFC | 35 min |
| Oct 26, 11:04 AM EDT | Flash Flood Watch | FFC | 68 hr |
| Oct 27, 5:09 PM EDT | Tropical Storm Watch | FFC | 18 hr |
| Oct 28, 11:04 AM EDT | Tropical Storm Warning | FFC | 24 hr |
| Oct 29, 3:44 AM EDT | Special Weather Statement | FFC | 31 min |
| Oct 29, 7:43 PM EDT | Wind Advisory | FFC | 8 hr |
| Nov 1, 2:54 AM EST | Freeze Warning | FFC | 30 hr |
| Nov 2, 2:17 PM EST | Frost Advisory | FFC | 19 hr |
| Nov 17, 4:09 AM EST | Freeze Watch | FFC | 8 hr |
| Nov 17, 12:15 PM EST | Freeze Warning | FFC | 20 hr |
| Nov 30, 3:55 AM EST | Wind Advisory | FFC | 9 hr |
| Dec 12, 10:38 PM EST | Dense Fog Advisory | FFC | 10 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 | 11 |
| Tornado Warning | 1 |
| Tornado Watch | 6 |
| Mesoscale Discussion | 14 |
| Special Weather Statement | 25 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 2 |
| River Flood Warning | 2 |
| Flash Flood Watch | 8 |
| Flood Watch | 1 |
| Winter | |
| Winter Weather Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
| Freezing Fog Advisory | 2 |
| Tropical | |
| Tropical Storm Warning | 1 |
| Tropical Storm Watch | 1 |
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.