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The Dexes / Funnel Cloud / 860402

Eventdex · Funnel Cloud

ST. JOHNS

860402 · 29.810, -81.350

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The record

Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.

Event typeevent_typeFunnel Cloud
NOAA NCEI event IDncei_event_id860,402
Episode IDepisode_id143,415
Begin UTCbegin_utc2019-12-14T10:20:00+00:00
End UTCend_utc2019-12-14T10:20:00+00:00
StatestateFLORIDA
County/zone typecz_typeC
County/zone namecz_nameST. JOHNS
Latitudelat29.810
Longitudelon-81.350
End latitudeend_lat29.810
End longitudeend_lon-81.350
Deaths directdeaths_direct0
Deaths indirectdeaths_indirect0
Injuries directinjuries_direct0
Injuries indirectinjuries_indirect0
Damage propertydamage_property0.00K
Damage cropsdamage_crops0.00K
Weather forecast office sourcewfo_source911 Call Center
Episode narrativeepisode_narrativeOn Friday, 13 December 2019, a warm front lifted and lingered across northeast Florida with surface dew points rising into the mid to upper 60s generally along and south of a line from St. Augustine to Gainesville. A strong upper level trough deepened across the central Gulf Coast region with a resultant surface low positioned over the northeast Gulf of Mexico coast just south of Panama City that evening around 10 pm EST. As the upper level trough axis started to lift and becoming positively tilted overnight into 14 December, the surface low edge farther east northeast and tracked over southeast Georgia then offshore of the local Atlantic coast through 4 am EST. The corridor of unstable low-level air remained across our southern Florida zones with surface-based CAPE values rising into the 1000-1300 J/kg range per LAPS analysis while aloft strong directional (0-6 km) bulk shear near the mid/upper level trough axis increased to 50-70 kts. The phased low-level instability, plentiful deep layer moisture and strong dynamical lift under the upper low and just south of the surface low spawned a couple of persistent supercells with long-lived mesocyclones.
Event narrativeevent_narrativeA funnel cloud was reported over 762 Gilda Drive.
Yearyear2,019

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ST. JOHNS — Funnel Cloud — TerraPulse