Alert archive / Florida / Special Weather Statements in 2017
Special Weather Statement, NWS Tampa Bay, FL
NWS Tampa Bay, FL issued this special weather statement at Jun 28, 2017, 6:39 PM EDT for Charlotte County, Florida. It was in force for 36 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
- Jun 28, 2017, 6:39 PM EDT (22:39 UTC)
- Expired
- Jun 28, 2017, 7:15 PM EDT
- In force
- 36 min
- Issued by
- NWS Tampa Bay, FL
County Charlotte County, FL
The radar
The Tampa radar (KTBW), 115 km from the middle of the area, began a volume at 22:41 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
Miami, FL (KMFL), launched 12:00Z, 10.7 hours before the alert went out and 183 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
- 1536 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 847 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 25 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 Tampa Bay, FL wrote its last area forecast discussion before this special weather statement went out at Jun 28, 3:14 PM EDT, 3 hours 25 minutes earlier.
Area forecast discussion, Jun 28, 3:14 PM EDT, 3 hours 25 minutes before
Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 314 PM EDT Wed Jun 28 2017 .SHORT TERM (Tonight-Thursday)... The pattern shift will continue as high pressure over the Mid- Atlantic states moves out into the western Atlantic Ocean establishing an east to southeast low level flow across the region with weak ridging aloft. For the rest of this afternoon and early evening we'll continue to see scattered showers and thunderstorms develop, especially along the sea breeze boundary which will be located close to the coast north of Tampa Bay and near the interstate 75 corridor elsewhere. Convection will drift west out into the gulf during the evening and overnight hours with partly cloudy skies for the rest of the night. On Thursday we'll have a classic Florida summertime day with the west coast sea breeze combining with the east to southeast low level flow and plenty of moisture to cause scattered afternoon and evening thunderstorms. Seasonable temperatures will continue with lows in the 70s and highs in the upper 80s to lower 90s. .MID TERM/LONG TERM (Thursday Night-Wednesday)... Mid/upper-level high pressure over the region will slowly slide westward over the Gulf of Mexico through the weekend and into early next week. This ridge will be suppressed a bit into the middle part of the week as a shortwave moves into the southeast, but weak ridging will remain over our area. At the surface, the Atlantic ridge axis will remain stretched across the Florida peninsula, keeping a generally light southeasterly flow over the area. The afternoon sea breeze, combined with abundant moisture in place, will lead to scattered to numerous showers and thunderstorms each afternoon and evening- a very typical Florida summertime forecast. && .AVIATION... Scattered convection this afternoon and evening will cause some MVFR/local IFR conditions, then VFR conditions should prevail overnight into early Thursday morning. During mid to late Thursday morning some more MVFR ceilings will be possible as daytime heating gets underway followed by scattered convection during the afternoon and evening. Winds will remain east to northeast this afternoon, except shifting to north to northwest at the coastal TAF sites of TPA, PIE, SRQ as the sea breeze develops. Easterly winds will return to all TAF sites this evening and continue through Thursday morning before shifting to onshore with the sea breeze Thursday afternoon. && .MARINE... East to southeast flow will setup for the next few days with a shift to onshore with the sea breeze during each afternoon. Wind speeds will remain less than 15 knots and seas 3 feet or less. The only marine hazard will be isolated to scattered thunderstorms, which could locally enhance winds and seas, and produce heavy rainfall and frequent lightning. && .FIRE WEATHER... No significant fire weather concerns are anticipated for the next several days as relative humidity values remain well above critical thresholds with scattered to numerous showers and thunderstorms each day. Some patchy late night/early morning fog will be possible for the next few days, but no significant fog or visibility reductions are expected. && .Preliminary Point Temps/PoPs... TPA 76 92 78 91 / 40 50 30 50 FMY 75 93 76 92 / 30 50 30 50 GIF 74 93 76 93 / 30 50 30 60 SRQ 75 91 77 91 / 30 30 20 40 BKV 73 92 74 92 / 50 50 30 50 SPG 78 90 79 91 / 30 40 20 40 && .TBW WATCHES/WARNINGS/ADVISORIES... FL...None. Gulf waters...None. && SHORT TERM/AVIATION/MARINE/FIRE WEATHER...69/Close MID TERM/LONG TERM/DECISION SUPPORT...05/Carlisle
Hazardous weather outlook, Jun 28, 5:16 AM EDT, 13 hours 23 minutes before
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</html>In the hours before
Special weather statement, Jun 28, 6:35 PM EDT, 4 minutes before
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</html>Special weather statement, Jun 28, 6:37 PM EDT, 2 minutes before
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</html>Special weather statement, Jun 28, 6:39 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Tampa Bay, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 6:21 PM EDT | River Flood Warning | TBW | Manatee | 21 hr |
| Jun 28, 6:35 PM EDT | Special Weather Statement | TBW | Highlands | 25 min |
| Jun 28, 6:37 PM EDT | Special Weather Statement | TBW | Lee | 53 min |
| Jun 28, 7:42 PM EDT | Special Weather Statement | TBW | Manatee | 48 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.