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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings11110%875%29 min
Flash flood warnings00

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Atlanta, GA: tornado warnings221055%3571%15 min
NWS Atlanta, GA: severe thunderstorm warnings27020723%42378%21 min
NWS Atlanta, GA: flash flood warnings1026932%15188%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.

IssuedProductOfficeLasted
Jan 12, 6:20 AM ESTDense Fog AdvisoryFFC4 hr
Jan 29, 3:43 PM ESTWind AdvisoryFFC48 hr
Jan 30, 8:11 AM ESTTornado WatchSPC7 hr
Jan 30, 11:09 AM ESTMesoscale DiscussionSPC96 min
Jan 30, 12:50 PM ESTMesoscale DiscussionSPC85 min
Jan 30, 1:19 PM ESTTornado WatchSPC9 hr
Jan 30, 1:51 PM ESTSevere Thunderstorm WarningFFC39 min
Jan 30, 2:30 PM ESTTornado WarningFFC45 min
Jan 30, 2:34 PM ESTSevere Thunderstorm WarningFFC41 min
Jan 30, 3:14 PM ESTSevere Thunderstorm WarningFFC46 min
Feb 6, 4:13 AM ESTDense Fog AdvisoryFFC6 hr
Feb 10, 3:24 AM ESTFlash Flood WatchFFC34 hr
Feb 11, 1:04 PM ESTFlood WatchFFC36 hr
Feb 16, 2:32 AM ESTWind AdvisoryFFC19 hr
Feb 20, 7:42 PM ESTFlood WatchFFC70 hr
Feb 24, 2:04 AM ESTDense Fog AdvisoryFFC7 hr
Feb 24, 3:50 AM ESTFlood WatchFFC58 hr
Feb 26, 1:42 AM ESTWind AdvisoryFFC12 hr
Feb 28, 2:29 PM ESTFreeze WarningFFC18 hr
Mar 1, 3:04 AM ESTFreeze WarningFFC30 hr
Mar 2, 3:15 AM ESTFreeze WarningFFC30 hr
Mar 2, 2:09 PM ESTFreeze WarningFFC43 hr
Mar 5, 9:16 AM ESTWind AdvisoryFFC34 hr
Mar 5, 2:11 PM ESTMesoscale DiscussionSPC2 hr
Mar 5, 2:31 PM ESTSevere Thunderstorm WatchSPC4 hr
Mar 5, 4:42 PM ESTSevere Thunderstorm WarningFFC33 min
Mar 5, 4:47 PM ESTMesoscale DiscussionSPC88 min
Mar 6, 2:07 PM ESTFreeze WarningFFC19 hr
Mar 10, 10:12 PM EDTWind AdvisoryFFC20 hr
Mar 13, 3:16 AM EDTFreeze WarningFFC31 hr
Mar 13, 3:48 AM EDTWind AdvisoryFFC16 hr
Mar 18, 2:11 PM EDTMesoscale DiscussionSPC94 min
Mar 18, 4:16 PM EDTTornado WatchSPC6 hr
Mar 18, 5:25 PM EDTSevere Thunderstorm WarningFFC65 min
Mar 18, 5:57 PM EDTMesoscale DiscussionSPC2 hr
Mar 18, 6:26 PM EDTSevere Thunderstorm WarningFFC49 min
Mar 20, 4:06 AM EDTFreeze WarningFFC31 hr
Mar 20, 4:11 AM EDTFire Weather WatchFFC24 hr
Mar 23, 11:28 PM EDTMesoscale DiscussionSPC92 min
Mar 24, 12:48 AM EDTSevere Thunderstorm WatchSPC7 hr
Mar 24, 4:46 AM EDTMesoscale DiscussionSPC89 min
Mar 24, 6:55 AM EDTMesoscale DiscussionSPC65 min
Mar 24, 3:26 PM EDTFreeze WatchFFC12 hr
Mar 24, 3:26 PM EDTWind AdvisoryFFC27 hr
Mar 25, 3:52 AM EDTFreeze WarningFFC30 hr
Mar 26, 4:19 AM EDTFreeze WarningFFC30 hr
Mar 28, 3:45 PM EDTFrost AdvisoryFFC18 hr
Apr 11, 4:26 PM EDTMesoscale DiscussionSPC94 min
Apr 11, 4:45 PM EDTTornado WatchSPC6 hr
Apr 11, 6:54 PM EDTMesoscale DiscussionSPC96 min
Apr 11, 8:24 PM EDTTornado WatchSPC8 hr
Apr 11, 10:36 PM EDTSevere Thunderstorm WarningFFC54 min
Apr 14, 6:40 PM EDTWind AdvisoryFFC4 hr
Apr 28, 1:37 PM EDTMesoscale DiscussionSPC83 min
Apr 30, 2:23 AM EDTDense Fog AdvisoryFFC8 hr
May 4, 11:40 AM EDTWind AdvisoryFFC8 hr
May 18, 9:02 AM EDTSpecial Weather StatementFFC58 min
May 18, 10:05 AM EDTSpecial Weather StatementFFC55 min
May 19, 12:35 PM EDTMesoscale DiscussionSPC55 min
May 19, 12:52 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 2, 4:07 PM EDTMesoscale DiscussionSPC113 min
Jun 7, 5:55 PM EDTSevere Thunderstorm WarningFFC50 min
Jun 13, 6:28 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 13, 8:47 PM EDTMesoscale DiscussionSPC88 min
Jun 13, 9:55 PM EDTSpecial Weather StatementFFC50 min
Jun 13, 10:29 PM EDTSpecial Weather StatementFFC46 min
Jun 27, 11:57 AM EDTMesoscale DiscussionSPC3 hr
Jun 27, 8:20 PM EDTSpecial Weather StatementFFC25 min
Jun 28, 12:26 PM EDTSevere Thunderstorm WatchSPC9 hr
Jun 28, 2:11 PM EDTMesoscale DiscussionSPC94 min
Jun 28, 3:14 PM EDTSevere Thunderstorm WarningFFC46 min
Jun 28, 3:42 PM EDTSevere Thunderstorm WarningFFC48 min
Jul 1, 1:26 PM EDTFlash Flood WatchFFC4 days
Jul 7, 4:10 PM EDTSpecial Weather StatementFFC35 min
Jul 10, 2:42 PM EDTSpecial Weather StatementFFC33 min
Jul 11, 3:58 AM EDTFlash Flood WatchFFC24 hr
Jul 13, 4:47 PM EDTSpecial Weather StatementFFC43 min
Jul 17, 4:46 PM EDTMesoscale DiscussionSPC59 min
Jul 24, 2:49 PM EDTSevere Thunderstorm WarningFFC56 min
Jul 31, 12:51 PM EDTSpecial Weather StatementFFC24 min
Aug 8, 3:38 PM EDTSpecial Weather StatementFFC52 min
Aug 15, 5:48 AM EDTSpecial Weather StatementFFC57 min
Aug 15, 6:46 AM EDTSpecial Weather StatementFFC59 min
Aug 15, 3:45 PM EDTFlash Flood WatchFFC4 days
Aug 18, 3:49 PM EDTMesoscale DiscussionSPC116 min
Aug 23, 6:59 PM EDTSpecial Weather StatementFFC61 min
Sep 1, 2:13 PM EDTMesoscale DiscussionSPC2 hr
Oct 25, 4:40 AM EDTFrost AdvisoryFFC29 hr
Nov 12, 4:58 AM ESTFreeze WarningFFC29 hr
Nov 12, 4:58 AM ESTWind AdvisoryFFC20 hr
Nov 12, 2:01 PM ESTFreeze WarningFFC43 hr
Nov 26, 2:21 AM ESTWind AdvisoryFFC41 hr
Dec 3, 9:15 PM ESTDense Fog AdvisoryFFC13 hr
Dec 6, 5:19 PM ESTMesoscale DiscussionSPC116 min
Dec 21, 10:33 AM ESTFlood WatchFFC53 hr
Dec 27, 2:23 PM ESTFlood WatchFFC47 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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.