ZCZC MIATCDEP3 ALL TTAA00 KNHC DDHHMM Tropical Depression Eighteen-E Discussion Number 2 NWS National Hurricane Center Miami FL EP182021 400 PM CDT Thu Nov 04 2021 The depression's overall appearance has not improved much today, and the cyclone consists of a curved band that extends primarily to the northeast of the estimated center, with the low-level center near the edge of the deep convection. The initial intensity is being held at 30 kt for this advisory, and is based on the latest Dvorak intensity estimates from TAFB and the UW-CIMSS ADT. The cyclone has wobbled a little to the west-northwest today and the initial motion is 285/6 kt. A mid-tropospheric ridge located to the north of the depression is forecast to strengthen and expand westward over the next few days. This should force the cyclone on more of a westward track, or even a little south of west, along with an increase in forward speed. This westward motion should continue for the remainder of the 5-day forecast period. The model track guidance remains in good agreement, and has shifted slightly south. The latest NHC track forecast was also nudged to the south, but lies on the northern end of the clustered track consensus solutions. The forecast intensity philosophy remains unchanged. The environment surrounding and ahead of the depression appears generally favorable for strengthening with ample atmospheric moisture and SSTs of 27 to 28 degrees C. However, 5 to 10 kt of westerly shear combined with the cyclone's increasing westward motion may cause convection to periodically get stripped to the east of its center. The latest NHC intensity forecast is essentially unchanged from the previous one, and remains near the IVCN and NOAA-HCCA consensus. FORECAST POSITIONS AND MAX WINDS INIT 04/2100Z 9.6N 90.5W 30 KT 35 MPH 12H 05/0600Z 9.7N 91.3W 30 KT 35 MPH 24H 05/1800Z 9.5N 92.5W 35 KT 40 MPH 36H 06/0600Z 9.2N 94.2W 35 KT 40 MPH 48H 06/1800Z 9.0N 96.3W 40 KT 45 MPH 60H 07/0600Z 8.9N 98.5W 40 KT 45 MPH 72H 07/1800Z 9.2N 100.8W 45 KT 50 MPH 96H 08/1800Z 10.1N 105.3W 50 KT 60 MPH 120H 09/1800Z 11.0N 110.0W 55 KT 65 MPH $$ Forecaster Latto NNNN
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