Alert archive / Georgia / Chattahoochee County

Weather alerts in Chattahoochee County, Georgia, 2016

94 weather alerts in 2016, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Chattahoochee County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Alerts
94
Warnings
19
Watches
11
Advisories
16
Busiest month
April18 alerts
Busiest day
April 1, 201611 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Chattahoochee County, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings14750%2100%38 min
Flash flood warnings00

Each office's whole area, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Atlanta, GA: tornado warnings20860%2085%7 min
NWS Atlanta, GA: severe thunderstorm warnings28619034%42675%16 min
NWS Atlanta, GA: flash flood warnings13285%367%19 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 15, 8:00 AM ESTSpecial Weather StatementFFC60 min
Jan 22, 3:46 AM ESTSpecial Weather StatementFFC29 min
Jan 22, 4:24 AM ESTSpecial Weather StatementFFC51 min
Jan 22, 5:20 AM ESTSpecial Weather StatementFFC40 min
Jan 22, 2:52 PM ESTWind AdvisoryFFC28 hr
Feb 1, 9:03 PM ESTDense Fog AdvisoryFFC12 hr
Feb 3, 5:02 AM ESTFlash Flood WatchFFC17 hr
Feb 3, 8:54 AM ESTSpecial Weather StatementFFC51 min
Feb 15, 7:55 PM ESTMesoscale DiscussionSPC2 hr
Feb 15, 8:08 PM ESTSevere Thunderstorm WarningFFC37 min
Feb 23, 1:23 PM ESTWind AdvisoryFFC36 hr
Feb 23, 10:07 PM ESTMesoscale DiscussionSPC53 min
Feb 24, 12:14 AM ESTTornado WatchSPC6 hr
Mar 1, 9:42 PM ESTMesoscale DiscussionSPC63 min
Mar 1, 10:09 PM ESTSevere Thunderstorm WatchSPC4 hr
Mar 3, 4:56 PM ESTSpecial Weather StatementFFC49 min
Mar 21, 10:53 AM EDTFrost AdvisoryFFC23 hr
Mar 24, 5:15 PM EDTSevere Thunderstorm WatchSPC5 hr
Mar 24, 7:59 PM EDTWind AdvisoryFFC87 min
Mar 30, 2:56 PM EDTFlash Flood WatchFFC57 hr
Mar 31, 8:41 PM EDTMesoscale DiscussionSPC94 min
Mar 31, 9:14 PM EDTTornado WatchSPC18 hr
Mar 31, 11:11 PM EDTMesoscale DiscussionSPC64 min
Apr 1, 1:20 AM EDTSpecial Weather StatementFFC40 min
Apr 1, 1:49 AM EDTSpecial Weather StatementFFC41 min
Apr 1, 3:03 AM EDTMesoscale DiscussionSPC57 min
Apr 1, 5:46 AM EDTMesoscale DiscussionSPC89 min
Apr 1, 7:26 AM EDTTornado WatchSPC12 hr
Apr 1, 10:02 AM EDTRiver Flood WarningFFC31 hr
Apr 1, 11:40 AM EDTMesoscale DiscussionSPC2 hr
Apr 1, 11:48 AM EDTSpecial Weather StatementFFC42 min
Apr 6, 8:59 PM EDTMesoscale DiscussionSPC2 hr
Apr 6, 11:40 PM EDTSpecial Weather StatementFFC35 min
Apr 6, 11:51 PM EDTSevere Thunderstorm WarningFFC39 min
Apr 7, 1:15 AM EDTSevere Thunderstorm WarningFFC45 min
Apr 7, 1:17 AM EDTMesoscale DiscussionSPC58 min
Apr 9, 12:12 AM EDTRed Flag WarningFFC19 hr
Apr 27, 8:41 PM EDTSpecial Weather StatementFFC49 min
May 4, 2:26 PM EDTWind AdvisoryFFC33 hr
May 6, 3:52 AM EDTWind AdvisoryFFC16 hr
May 19, 5:52 PM EDTSpecial Weather StatementFFC38 min
Jun 7, 4:12 AM EDTDense Fog AdvisoryFFC6 hr
Jun 11, 3:52 PM EDTSpecial Weather StatementFFC38 min
Jun 11, 4:11 PM EDTSevere Thunderstorm WarningFFC49 min
Jun 11, 4:53 PM EDTSevere Thunderstorm WarningFFC33 min
Jun 16, 8:42 PM EDTSevere Thunderstorm WarningFFC48 min
Jun 17, 12:34 PM EDTMesoscale DiscussionSPC116 min
Jun 17, 1:52 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 17, 6:19 PM EDTSpecial Weather StatementFFC56 min
Jun 17, 6:31 PM EDTSevere Thunderstorm WarningFFC44 min
Jun 17, 7:13 PM EDTSpecial Weather StatementFFC62 min
Jun 25, 4:56 PM EDTSevere Thunderstorm WarningFFC34 min
Jun 25, 6:28 PM EDTSevere Thunderstorm WarningFFC47 min
Jun 26, 4:39 PM EDTSpecial Weather StatementFFC36 min
Jun 28, 8:01 PM EDTSpecial Weather StatementFFC29 min
Jul 5, 1:45 PM EDTMesoscale DiscussionSPC3 hr
Jul 6, 1:14 PM EDTMesoscale DiscussionSPC61 min
Jul 6, 1:53 PM EDTSevere Thunderstorm WatchSPC4 hr
Jul 6, 2:22 PM EDTSevere Thunderstorm WarningFFC38 min
Jul 6, 2:53 PM EDTSpecial Weather StatementFFC37 min
Jul 6, 2:57 PM EDTSevere Thunderstorm WarningFFC48 min
Jul 9, 3:42 AM EDTHeat AdvisoryFFC16 hr
Jul 9, 2:30 PM EDTSevere Thunderstorm WarningFFC45 min
Jul 9, 3:06 PM EDTSpecial Weather StatementFFC24 min
Jul 11, 3:02 PM EDTMesoscale DiscussionSPC118 min
Jul 12, 5:47 PM EDTSpecial Weather StatementFFC43 min
Jul 19, 2:20 PM EDTSpecial Weather StatementFFC25 min
Jul 21, 2:17 PM EDTMesoscale DiscussionSPC88 min
Jul 21, 4:43 PM EDTSevere Thunderstorm WarningFFC47 min
Jul 21, 4:49 PM EDTSpecial Weather StatementBMX26 min
Jul 21, 5:45 PM EDTSevere Thunderstorm WarningFFC45 min
Jul 21, 6:11 PM EDTSpecial Weather StatementFFC34 min
Jul 31, 4:40 PM EDTSpecial Weather StatementFFC50 min
Aug 2, 5:40 PM EDTSpecial Weather StatementFFC35 min
Aug 13, 6:17 PM EDTSpecial Weather StatementFFC43 min
Sep 12, 6:45 PM EDTSpecial Weather StatementFFC30 min
Sep 25, 2:44 PM EDTSpecial Weather StatementFFC31 min
Sep 25, 3:04 PM EDTSpecial Weather StatementFFC26 min
Oct 8, 12:09 PM EDTWind AdvisoryFFC7 hr
Oct 21, 6:31 AM EDTWind AdvisoryFFC11 hr
Nov 3, 2:47 PM EDTRed Flag WarningFFC28 hr
Nov 12, 11:08 AM ESTWind AdvisoryFFC7 hr
Nov 18, 2:52 PM ESTWind AdvisoryFFC42 hr
Nov 18, 10:12 PM ESTFire Weather WatchFFC17 hr
Nov 19, 2:59 AM ESTRed Flag WarningFFC22 hr
Nov 19, 2:49 PM ESTRed Flag WarningFFC28 hr
Nov 30, 12:06 PM ESTTornado WatchSPC6 hr
Nov 30, 1:59 PM ESTMesoscale DiscussionSPC2 hr
Nov 30, 2:55 PM ESTMesoscale DiscussionSPC2 hr
Nov 30, 3:04 PM ESTSpecial Weather StatementFFC26 min
Nov 30, 3:29 PM ESTSpecial Weather StatementFFC46 min
Dec 24, 8:44 AM ESTDense Fog AdvisoryFFC76 min
Dec 25, 3:48 AM ESTDense Fog AdvisoryFFC6 hr
Dec 26, 9:22 PM ESTDense Fog AdvisoryFFC12 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 archive20152017

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.