Alert archive / Florida / Special Weather Statements in 2017
Special Weather Statement, NWS Jacksonville, FL
NWS Jacksonville, FL issued this special weather statement at Jul 10, 2017, 2:56 PM EDT for Nassau County, Florida. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 10, 2017, 2:56 PM EDT (18:56 UTC)
- Expired
- Jul 10, 2017, 3:45 PM EDT
- In force
- 49 min
- Issued by
- NWS Jacksonville, FL
County Nassau County, FL
The radar
The Jacksonville radar (KJAX), 31 km from the middle of the area, began a volume at 18:57 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Cape Canaveral, FL (KXMR), launched 12:00Z, 6.9 hours before the alert went out and 267 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1242 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 975 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before this special weather statement went out at Jul 10, 10:06 AM EDT, 4 hours 50 minutes earlier.
Area forecast discussion, Jul 10, 10:06 AM EDT, 4 hours 50 minutes before
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</html>Hazardous weather outlook, Jul 10, 3:09 AM EDT, 11 hours 47 minutes before
Hazardous Weather Outlook National Weather Service Jacksonville FL 309 AM EDT Mon Jul 10 2017 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125- GAZ132>136-149>154-162>166-111000- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM- Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM- Coastal waters from St. Augustine to Flagler Beach FL out 20 NM- Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM- Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM- Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM- Hamilton-Suwannee-Columbia-Baker-Inland Nassau-Inland Duval-Union- Bradford-Clay-St. Johns-Gilchrist-Alachua-Putnam-Flagler-Marion- Coastal Nassau-Coastal Duval-Coffee-Jeff Davis-Bacon-Appling- Wayne-Atkinson-Ware-Pierce-Brantley-Inland Glynn-Coastal Glynn- Echols-Clinch-Charlton-Inland Camden-Coastal Camden- 309 AM EDT Mon Jul 10 2017 This Hazardous Weather Outlook is for Northeast Florida, Southeast Georgia and the Adjacent Coastal Waters. .DAY ONE...Today and Tonight... Scattered to Numerous Thunderstorms are expected this afternoon and evening. Locally heavy rainfall, gusty winds and frequent lightning are expected in the strongest thunderstorms. Storm motion will be towards the North-Northeast at 10 to 15 mph. Best chances of strong storms will be between the I-95 and US 301 corridors. Activity will drift towards the Atlantic Coast late in the day. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday... Isolated to Scattered Thunderstorms are expected each day, with the greatest potential during the afternoon and early evening. Locally heavy rainfall...gusty winds...and frequent lightning will be possible in the strongest thunderstorms. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed. For additional information, visit the National Weather Service in Jacksonville website on the internet at weather.gov/jax.
In the hours before
Special weather statement, Jul 10, 2:33 PM EDT, 23 minutes before
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</html>Special weather statement, Jul 10, 2:36 PM EDT, 20 minutes before
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</html>Special weather statement, Jul 10, 2:56 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 3:22 PM EDT | Special Weather Statement | JAX | Clay | 38 min |
| Jul 10, 3:40 PM EDT | Special Weather Statement | JAX | Duval | 50 min |
| Jul 10, 3:57 PM EDT | Special Weather Statement | JAX | Nassau | 48 min |
| Jul 10, 4:06 PM EDT | Special Weather Statement | JAX | Bradford | 39 min |
| Jul 10, 4:09 PM EDT | Special Weather Statement | JAX | Marion | 51 min |
| Jul 10, 4:12 PM EDT | Areal Flood Advisory | JAX | Duval | 3 hr |
| Jul 10, 4:39 PM EDT | Areal Flood Warning | JAX | Duval | 111 min |
| Jul 10, 4:42 PM EDT | Special Weather Statement | JAX | Putnam | 48 min |
| Jul 10, 5:18 PM EDT | Special Weather Statement | JAX | Putnam | 42 min |
| Jul 10, 5:30 PM EDT | Severe Thunderstorm Warning | JAX | Putnam, Saint Johns | 45 min |
| Jul 10, 5:55 PM EDT | Areal Flood Advisory | JAX | Putnam | 3 hr |
| Jul 10, 6:14 PM EDT | Special Weather Statement | JAX | Saint Johns | 46 min |
| Jul 10, 7:18 PM EDT | Special Weather Statement | JAX | Flagler | 27 min |
| Jul 10, 7:36 PM EDT | Special Weather Statement | JAX | Marion | 24 min |
| Jul 10, 2:33 PM EDT | Special Weather Statement | JAX | Camden | 27 min |
| Jul 10, 2:36 PM EDT | Special Weather Statement | JAX | Appling | 24 min |
| Jul 10, 3:03 PM EDT | Special Weather Statement | JAX | Coffee | 42 min |
Nearby
Special Weather Statements in Florida, 2017Every special weather statement in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.