Alert archive / Georgia / Special Weather Statements in 2017
Special Weather Statement, NWS Jacksonville, FL
NWS Jacksonville, FL issued this special weather statement at Feb 7, 2017, 2:09 PM EST for Clinch County, Georgia. It was in force for 51 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
- Feb 7, 2017, 2:09 PM EST (19:09 UTC)
- Expired
- Feb 7, 2017, 3:00 PM EST
- In force
- 51 min
- Issued by
- NWS Jacksonville, FL
County Clinch County, GA
The radar
The Moody AFB radar (KVAX), 25 km from the middle of the area, began a volume at 19:11 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
Jacksonville, FL (KJAX), launched 12:00Z, 7.2 hours before the alert went out and 124 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
- 13 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 1028 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 95 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 Feb 7, 9:36 AM EST, 4 hours 33 minutes earlier.
Area forecast discussion, Feb 7, 9:36 AM EST, 4 hours 33 minutes before
Area Forecast Discussion National Weather Service Jacksonville FL 936 AM EST Tue Feb 7 2017 ...Near record warmth this afternoon... ...Marginal risk of severe weather tonight... .UPDATE...The tightening gradient between high pressure across the western Atlantic and an approaching strong cold front will provide a warm southwest flow to the area today. A short wave...moving in from the northeast Gulf...will move across the far southern zones this afternoon and may produce a round of scattered showers/storms as it interacts with convergence from a weak east coast seabreeze. Morning Jax sounding shows strong cap at 700 mb which will help inhibit convection for most other areas until this eve. A squall line...out ahead of an approaching short wave trough... is forecast to traverse the area this eve. SPC has our area under a marginal risk of severe wx with strong winds and hail the main concerns. Record warmth a strong possibility this afternoon especially at Jax where the record will probably be tied or even broken. Current record highs for today... SSI 78 deg (1999) AMG 81 deg (1957) JAX 80 deg (1904) GNV 86 deg (1957) && .AVIATION...Scattered showers may develop during the mid to late afternoon and have VCSH at most terminals aft 18Z. A much better chance for showers and storms after 03z tonight as a squall line approaches the area. Previous PROB30 groups will probably become TEMPO groups on the next TAF issuance. && .MARINE...No headlines today. South winds 10 to 15 knots. Seas 2 to 4 feet. A slight chance of afternoon showers and storms. A southerly flow will continue through tonight veering to the southwest Wednesday as a cold front approaches the area. Frontal passage looks to be Thursday morning with SCA conditions with a few gusts to gale force possible Thu through Thu night. Winds and seas will continue elevated Friday but will be on the decline as sfc high pressure moves into local area and then south of the region Saturday. Rip Currents: Mainly low risk with some lingering easterly swells through Wednesday with predominate flow south to southwest. && .PRELIMINARY POINT TEMPS/POPS... AMG 78 59 76 60 / 30 70 30 30 SSI 74 60 73 62 / 30 70 20 30 JAX 80 61 79 63 / 20 70 20 20 SGJ 78 61 79 64 / 30 60 20 10 GNV 81 61 78 63 / 20 60 30 20 OCF 81 61 79 63 / 20 60 20 20 && .JAX WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AM...None. && PP/JH/WC
Hazardous weather outlook, Feb 7, 10:19 AM EST, 3 hours 50 minutes before
Hazardous Weather Outlook National Weather Service Jacksonville FL 1019 AM EST Tue Feb 7 2017 AMZ450-452-454-470-472-474-FLZ020>025-030>033-035>038-040-124-125- GAZ132>136-149>154-162>166-081530- 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- 1019 AM EST Tue Feb 7 2017 ...MARGINAL RISK FOR SEVERE THUNDERSTORMS TONIGHT AND WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT... This Hazardous Weather Outlook is for Northeast Florida, Southeast Georgia and the Adjacent Coastal Waters. .DAY ONE...Today and Tonight... Isolated strong to severe storms are possible this afternoon mainly southeast of a line from St Augustine to Ocala as well as the adjacent coastal waters. Storm motion will be east northeast at 30 mph. A squall line is forecast to traverse the area this evening. The main concerns this afternoon and evening will be strong wind gusts and hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday... Isolated thunderstorms are possible Wednesday afternoon and night. Some storms may be strong to severe with strong wind gusts and hail the main concerns. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this evening. 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, Feb 7, 2:09 PM EST, 0 minutes before
Special Weather Statement
National Weather Service Jacksonville FL
209 PM EST TUE FEB 7 2017
GAZ163-072000-
Clinch GA-
209 PM EST TUE FEB 7 2017
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CLINCH COUNTY UNTIL
300 PM EST...
At 209 PM EST, Doppler radar was tracking a strong thunderstorm over
Du Pont, or 9 miles southwest of Homerville, moving northeast at 25
mph.
Wind gusts of 45 to 55 mph can be expected along with possible minor
wind damage.
Locations impacted include...
Homerville, Argyle, Du Pont and Cogdell.
LAT...LON 3118 8282 3118 8267 3103 8260 3085 8288
3094 8297 3104 8297
TIME...MOT...LOC 1909Z 227DEG 24KT 3098 8289
HESSThe office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 7, 5:05 PM EST | Special Weather Statement | JAX | Putnam | 40 min |
| Feb 7, 2:42 PM EST | Special Weather Statement | JAX | Ware | 48 min |
| Feb 7, 3:15 PM EST | Special Weather Statement | JAX | Brantley, Pierce | 45 min |
| Feb 7, 3:36 PM EST | Severe Thunderstorm Warning | JAX | Appling, Bacon, Pierce | 39 min |
Nearby
Special Weather Statements in Georgia, 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.