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CONVECTIVE TACTICAL DECISION AID (TDA) PORTLAND TRACON ARRIVAL GATES ISSUED: TUESDAY, NOVEMBER 01, 2011 15Z FORECASTER: NEYMAN | ||
| PROBABILITY OF TS WITHIN 20NM OF PDX ARRIVAL GATES | ||
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| UNLIKELY (<30%) | CHANCE (30-59%) | LIKELY (>=60%) |
| AREAS FOG. NO THUNDERSTORMS. | ||
| Forecast is updated every three hours except hourly when convection is occurring in any of Portland's arrival gates. | ||









