Alert archive / Florida / Suwannee County / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Suwannee County, Florida, 2014

15 severe thunderstorm warnings in 2014. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.

Suwannee County and its neighbors

Each county as a circle sized by its count in 2014. Tap one for its archive.

Severe Thunderstorm Warnings
15
Busiest month
June3 severe thunderstorm warnings
Busiest day
January 11, 20142 severe thunderstorm warnings

Over time

By month

Warning verification

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

11 of 15 severe thunderstorm warnings covering Suwannee County in 2014 had a qualifying storm report inside them; 7 of 8 hail, wind and damage reports fell inside a warning, on average 13 minutes after it went out.

Suwannee County, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Severe thunderstorm warnings151127%888%13 min

Each office's whole area, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Jacksonville, FL: severe thunderstorm warnings23112845%30663%20 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 11, 2:31 PM ESTSevere Thunderstorm WarningJAX44 min
Jan 11, 2:45 PM ESTSevere Thunderstorm WarningJAX45 min
Feb 21, 9:26 AM ESTSevere Thunderstorm WarningJAX49 min
Feb 21, 10:10 AM ESTSevere Thunderstorm WarningJAX50 min
Jun 7, 12:24 AM EDTSevere Thunderstorm WarningJAX51 min
Jun 7, 12:47 AM EDTSevere Thunderstorm WarningJAX58 min
Jun 8, 7:07 PM EDTSevere Thunderstorm WarningJAX38 min
Jul 3, 4:01 PM EDTSevere Thunderstorm WarningJAX44 min
Aug 8, 1:16 PM EDTSevere Thunderstorm WarningJAX29 min
Aug 18, 2:52 PM EDTSevere Thunderstorm WarningJAX23 min
Aug 19, 2:51 PM EDTSevere Thunderstorm WarningJAX39 min
Oct 14, 1:31 PM EDTSevere Thunderstorm WarningJAX29 min
Nov 17, 11:23 AM ESTSevere Thunderstorm WarningJAX52 min
Nov 17, 12:06 PM ESTSevere Thunderstorm WarningJAX54 min
Nov 23, 7:27 PM ESTSevere Thunderstorm WarningJAX48 min

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20132015

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.