Alert archive / Georgia / Harris County
Weather alerts in Harris County, Georgia, 2013
96 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Harris County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 96
- Warnings
- 23
- Watches
- 21
- Advisories
- 18
- Busiest month
- March28 alerts
- Busiest day
- January 30, 20138 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 Harris County in 2013 had a tornado report inside them.
Harris County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 11 | 11 | 0% | 8 | 75% | 29 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Atlanta, GA: tornado warnings | 22 | 10 | 55% | 35 | 71% | 15 min |
| NWS Atlanta, GA: severe thunderstorm warnings | 270 | 207 | 23% | 423 | 78% | 21 min |
| NWS Atlanta, GA: flash flood warnings | 102 | 69 | 32% | 151 | 88% | 103 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 12, 6:20 AM EST | Dense Fog Advisory | FFC | 4 hr |
| Jan 29, 3:43 PM EST | Wind Advisory | FFC | 48 hr |
| Jan 30, 8:11 AM EST | Tornado Watch | SPC | 7 hr |
| Jan 30, 11:09 AM EST | Mesoscale Discussion | SPC | 96 min |
| Jan 30, 12:50 PM EST | Mesoscale Discussion | SPC | 85 min |
| Jan 30, 1:19 PM EST | Tornado Watch | SPC | 9 hr |
| Jan 30, 1:51 PM EST | Severe Thunderstorm Warning | FFC | 39 min |
| Jan 30, 2:30 PM EST | Tornado Warning | FFC | 45 min |
| Jan 30, 2:34 PM EST | Severe Thunderstorm Warning | FFC | 41 min |
| Jan 30, 3:14 PM EST | Severe Thunderstorm Warning | FFC | 46 min |
| Feb 6, 4:13 AM EST | Dense Fog Advisory | FFC | 6 hr |
| Feb 10, 3:24 AM EST | Flash Flood Watch | FFC | 34 hr |
| Feb 11, 1:04 PM EST | Flood Watch | FFC | 36 hr |
| Feb 16, 2:32 AM EST | Wind Advisory | FFC | 19 hr |
| Feb 20, 7:42 PM EST | Flood Watch | FFC | 70 hr |
| Feb 24, 2:04 AM EST | Dense Fog Advisory | FFC | 7 hr |
| Feb 24, 3:50 AM EST | Flood Watch | FFC | 58 hr |
| Feb 26, 1:42 AM EST | Wind Advisory | FFC | 12 hr |
| Feb 28, 2:29 PM EST | Freeze Warning | FFC | 18 hr |
| Mar 1, 3:04 AM EST | Freeze Warning | FFC | 30 hr |
| Mar 2, 3:15 AM EST | Freeze Warning | FFC | 30 hr |
| Mar 2, 2:09 PM EST | Freeze Warning | FFC | 43 hr |
| Mar 5, 9:16 AM EST | Wind Advisory | FFC | 34 hr |
| Mar 5, 2:11 PM EST | Mesoscale Discussion | SPC | 2 hr |
| Mar 5, 2:31 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
| Mar 5, 4:42 PM EST | Severe Thunderstorm Warning | FFC | 33 min |
| Mar 5, 4:47 PM EST | Mesoscale Discussion | SPC | 88 min |
| Mar 6, 2:07 PM EST | Freeze Warning | FFC | 19 hr |
| Mar 10, 10:12 PM EDT | Wind Advisory | FFC | 20 hr |
| Mar 13, 3:16 AM EDT | Freeze Warning | FFC | 31 hr |
| Mar 13, 3:48 AM EDT | Wind Advisory | FFC | 16 hr |
| Mar 18, 2:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Mar 18, 4:16 PM EDT | Tornado Watch | SPC | 6 hr |
| Mar 18, 5:25 PM EDT | Severe Thunderstorm Warning | FFC | 65 min |
| Mar 18, 5:57 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 18, 6:26 PM EDT | Severe Thunderstorm Warning | FFC | 49 min |
| Mar 20, 4:06 AM EDT | Freeze Warning | FFC | 31 hr |
| Mar 20, 4:11 AM EDT | Fire Weather Watch | FFC | 24 hr |
| Mar 23, 11:28 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Mar 24, 12:48 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 24, 4:46 AM EDT | Mesoscale Discussion | SPC | 89 min |
| Mar 24, 6:55 AM EDT | Mesoscale Discussion | SPC | 65 min |
| Mar 24, 3:26 PM EDT | Freeze Watch | FFC | 12 hr |
| Mar 24, 3:26 PM EDT | Wind Advisory | FFC | 27 hr |
| Mar 25, 3:52 AM EDT | Freeze Warning | FFC | 30 hr |
| Mar 26, 4:19 AM EDT | Freeze Warning | FFC | 30 hr |
| Mar 28, 3:45 PM EDT | Frost Advisory | FFC | 18 hr |
| Apr 11, 4:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Apr 11, 4:45 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 11, 6:54 PM EDT | Mesoscale Discussion | SPC | 96 min |
| Apr 11, 8:24 PM EDT | Tornado Watch | SPC | 8 hr |
| Apr 11, 10:36 PM EDT | Severe Thunderstorm Warning | FFC | 54 min |
| Apr 14, 6:40 PM EDT | Wind Advisory | FFC | 4 hr |
| Apr 28, 1:37 PM EDT | Mesoscale Discussion | SPC | 83 min |
| Apr 30, 2:23 AM EDT | Dense Fog Advisory | FFC | 8 hr |
| May 4, 11:40 AM EDT | Wind Advisory | FFC | 8 hr |
| May 18, 9:02 AM EDT | Special Weather Statement | FFC | 58 min |
| May 18, 10:05 AM EDT | Special Weather Statement | FFC | 55 min |
| May 19, 12:35 PM EDT | Mesoscale Discussion | SPC | 55 min |
| May 19, 12:52 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 2, 4:07 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jun 7, 5:55 PM EDT | Severe Thunderstorm Warning | FFC | 50 min |
| Jun 13, 6:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 8:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| Jun 13, 9:55 PM EDT | Special Weather Statement | FFC | 50 min |
| Jun 13, 10:29 PM EDT | Special Weather Statement | FFC | 46 min |
| Jun 27, 11:57 AM EDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 27, 8:20 PM EDT | Special Weather Statement | FFC | 25 min |
| Jun 28, 12:26 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 28, 2:11 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Jun 28, 3:14 PM EDT | Severe Thunderstorm Warning | FFC | 46 min |
| Jun 28, 3:42 PM EDT | Severe Thunderstorm Warning | FFC | 48 min |
| Jul 1, 1:26 PM EDT | Flash Flood Watch | FFC | 4 days |
| Jul 7, 4:10 PM EDT | Special Weather Statement | FFC | 35 min |
| Jul 10, 2:42 PM EDT | Special Weather Statement | FFC | 33 min |
| Jul 11, 3:58 AM EDT | Flash Flood Watch | FFC | 24 hr |
| Jul 13, 4:47 PM EDT | Special Weather Statement | FFC | 43 min |
| Jul 17, 4:46 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jul 24, 2:49 PM EDT | Severe Thunderstorm Warning | FFC | 56 min |
| Jul 31, 12:51 PM EDT | Special Weather Statement | FFC | 24 min |
| Aug 8, 3:38 PM EDT | Special Weather Statement | FFC | 52 min |
| Aug 15, 5:48 AM EDT | Special Weather Statement | FFC | 57 min |
| Aug 15, 6:46 AM EDT | Special Weather Statement | FFC | 59 min |
| Aug 15, 3:45 PM EDT | Flash Flood Watch | FFC | 4 days |
| Aug 18, 3:49 PM EDT | Mesoscale Discussion | SPC | 116 min |
| Aug 23, 6:59 PM EDT | Special Weather Statement | FFC | 61 min |
| Sep 1, 2:13 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 25, 4:40 AM EDT | Frost Advisory | FFC | 29 hr |
| Nov 12, 4:58 AM EST | Freeze Warning | FFC | 29 hr |
| Nov 12, 4:58 AM EST | Wind Advisory | FFC | 20 hr |
| Nov 12, 2:01 PM EST | Freeze Warning | FFC | 43 hr |
| Nov 26, 2:21 AM EST | Wind Advisory | FFC | 41 hr |
| Dec 3, 9:15 PM EST | Dense Fog Advisory | FFC | 13 hr |
| Dec 6, 5:19 PM EST | Mesoscale Discussion | SPC | 116 min |
| Dec 21, 10:33 AM EST | Flood Watch | FFC | 53 hr |
| Dec 27, 2:23 PM EST | Flood Watch | FFC | 47 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 |
| Severe Thunderstorm Watch | 5 |
| Tornado Watch | 5 |
| Mesoscale Discussion | 21 |
| Special Weather Statement | 13 |
| Flooding | |
| Flash Flood Watch | 4 |
| Flood Watch | 5 |
| Cold | |
| Freeze Warning | 11 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 11 |
| Fire | |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.