• FIJI: TC Ana TDA A8

    From Weather Alert@21:1/175 to All on Sat Jan 30 00:13:00 2021
    WTPS11 NFFN 292100
    TROPICAL DISTURBANCE ADVISORY NUMBER A8 ISSUED FROM RSMC NADI
    Jan 292225 UTC.

    TROPICAL CYCLONE ANA CENTRE 995HPA WAS LOCATED NEAR 15.3S 175.4E AT
    291800 UTC. POSITION POOR ON HIMAWARI-8 EIR IMAGERY AND PERIPHERAL
    SURFACE REPORTS. TC ANA MOVING EAST AT ABOUT 11 KNOTS. MAXIMUM
    10-MINUTE AVERAGE WINDS NEAR THE CENTRE ESTIMATED AT 35 ABOUT KNOTS.

    EXPECT WINDS OVER 33 KNOTS WITHIN 180 NAUTICAL MILES IN NE QUADRANT
    AND WITHIN 180 NAUTICAL MILES IN SE QUADRANT
    AND WITHIN 100 NAUTICAL MILES IN SW QUADRANT
    AND WITHIN 150 NAUTICAL MILES IN NW QUADRANT

    DEEP CONVECTION PERSISTS IN LAST 6 HOURS. ORGANISATION IMPROVING WITH
    PRIMARY BANDS WRAPPING ONTO SUPPOSED LLCC. TC ANA LIES SOUTH OF AN
    UPPER RIDGE IN A NARROW BAND OF A LOW TO MODERATE SHEARED
    ENVIRONMENT. GOOD OUTFLOW AND UPPER DIVERGENCE OVER THE SYSTEM. TC
    ANA IS BEING STEERED TO THE EAST SOUTHEAST BEFORE SOUTHEAST BY THE
    SOUTHERN PERIPHERY OF THE NEAR EQUITORIAL RIDGE LOCATED TO THE
    NORTHEAST OF THE SYSTEM.SST IS AROUND 30 DEGREES CELSIUS. DVORAK
    ANALYSIS BASED ON CURVED BAND WITH 0.6 WRAP ON LOG 10 SPIRAL YIELDING
    DT=3.0, MET AND PT AGREE. FT BASED ON DT THUS T4.0/4.0/D1.5/24HRS.

    FORECASTS :
    AT 12 HRS VALID AT 300600 UTC 15.9S 176.8E MOV ESE AT 08 KT WITH 40
    KT CLOSE TO CENTRE
    AT 24 HRS VALID AT 301800 UTC 16.6S 177.7E MOV ESE AT 07 KT WITH 45
    KT CLOSE TO CENTRE

    OUTLOOK :
    AT 36 HRS VALID AT 310600 UTC 17.5S 178.2E MOV SE AT 06 KT WITH 45 KT
    CLOSE TO CENTRE
    AT 48 HRS VALID AT 311800 UTC 18.4S 178.5E MOV SE AT 06 KT WITH 45 KT
    CLOSE TO CENTRE

    THE NEXT TROPICAL DISTURBANCE ADVISORY ON TROPICAL DEPRESSION 05F
    WILL BE ISSUED AROUND 300200 UTC.
    #
    --- SBBSecho 3.12-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (21:1/175)