Special Marine Warning
NWS Tampa Bay Ruskin FL ยท US
Details
Special Marine Warning Issued September 18 At 5:15PM EDT Until September 18 At 6:15PM EDT By NWS Tampa Bay Ruskin FL
- Event
- Special Marine Warning
- Issued
- Onset
- Message expires
- Expected end
- Category
- Meteorological
- Urgency
- Immediate
- Severity
- Severe
- Certainty
- Likely
- Response
- Avoid
Description
Overview
SMWTBW The National Weather Service in Ruskin has issued a * Special Marine Warning for... Charlotte Harbor and Pine Island Sound... Coastal waters from Bonita Beach to Englewood FL out 20 NM... Coastal waters from Englewood to Tarpon Springs FL out 20 NM... * Until 615 PM EDT. * At 514 PM EDT, severe thunderstorms capable of producing waterspouts were located along a line extending from near Venice to 10 nm northeast of Don Pedro Island to 20 nm northeast of Boca Grande, moving southwest at 15 knots.
Hazard
Waterspouts and wind gusts to 40 knots.
Source
Radar.
Impacts
Waterspouts can quickly form and capsize boats, damage vessels, and create suddenly higher waves. Make sure all on board are in a secure location and wearing life jackets. Expect wind gusts in excess of 34 knots, suddenly higher waves, frequent lightning, and heavy downpours. Make sure all on board are wearing life jackets.
Locations impacted
Englewood, Boca Grande, Manasota Key, Palm Island, Cayo Costa Island, North Captiva Island, Don Pedro Island, Captiva, and Venice.
Instructions
Move to safe harbor immediately as gusty winds and high waves are expected. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately.
Affected areas
- Charlotte Harbor and Pine Island Sound
- Coastal waters from Englewood to Tarpon Springs FL out 20 NM
- Coastal waters from Bonita Beach to Englewood FL out 20 NM
Public contact
- Issuer
- NWS Tampa Bay Ruskin FL
- Website
- http://www.weather.gov
Message record
- Received
- Issue to receipt
- ~25s
- CAP status
- Actual
- CAP message type
- Alert
- Lifecycle
- New
- Source
- NWWS-OI
- Feed
- NWWS
- Recovered
- No
CAP routing and identity
- ULID
- 01M2V5ZHKC12P30CY855CSEQ7W
- Identifier
- urn:oid:2.49.0.1.840.0.ed7bc62db5be2340c2dacff182da47d81e0e3226.001.1
- Sender
- w-nws.webmaster@noaa.gov
- Scope
- Public
- CAP source
- 211803 v2.3.0
- Handling codes
- IPAWSv1.0
- Issuing office
- NWS Tampa Bay Ruskin FL
- AWIPS ID
- CAPTBW
- NWWS sequence
- nwws_processor.5608
- WMO heading
- XOUS52
- WMO data type
- CAP alert message XML (XO)
- WMO geography
- United States (US)
- WMO bulletin number
- 52
Event codes
| Name | Value |
|---|---|
| SAME | SMW |
| NationalWeatherService | MAW |
Parameters
| Name | Value |
|---|---|
| AWIPSidentifier | SMWTBW |
| WMOidentifier | WHUS52 KTBW 182115 |
| eventMotionDescription | 2026-09-18T21:14:00-00:00...storm...031DEG...15KT...27.06,-82.34 26.96,-82.15 26.92,-81.94 |
| waterspoutDetection | POSSIBLE |
| BLOCKCHANNEL | EAS |
| BLOCKCHANNEL | NWEM |
| EAS-ORG | WXR |
| VTEC | /O.NEW.KTBW.MA.W.0196.260918T2115Z-260918T2215Z/ |
| eventEndingTime | 2026-09-18T18:15:00-04:00 |
| BLOCKCHANNEL | CMAS |
Locations
Location data
- Charlotte Harbor and Pine Island Sound
- Coastal waters from Englewood to Tarpon Springs FL out 20 NM
- Coastal waters from Bonita Beach to Englewood FL out 20 NM
| Name | Value |
|---|---|
| SAME | 077836 |
| SAME | 077853 |
| SAME | 077856 |
| UGC | GMZ836 |
| UGC | GMZ853 |
| UGC | GMZ856 |
- Polygons
- 26.49,-82.37 26.96,-82.6 27.11,-82.39 27.06,-82.37 26.92,-82.26 27.03,-82.15 27.0,-82.07 26.96,-82.01 26.93,-82.01 26.58,-82.0 26.49,-82.37