ZCZC MIATCDEP4 ALL TTAA00 KNHC DDHHMM TROPICAL DEPRESSION NINETEEN-E DISCUSSION NUMBER 3 NWS NATIONAL HURRICANE CENTER MIAMI FL EP192015 800 AM PDT THU OCT 15 2015 Tropical Depression Nineteen-E's cloud pattern has changed little during the past 6-12 hours and consists of a persistent cluster of deep convection near the low-level center and a lengthening band extending to the north and northeast. The maximum winds remain 30 kt based on Dvorak estimates of T2.0 from TAFB and SAB. Although the depression has not strengthened yet, low vertical shear, very warm waters, and a moist atmosphere favor intensification throughout the five-day forecast period. As such, the NHC intensity forecast is very similar to the previous one and shows the depression reaching hurricane intensity in a couple of days. The intensity models all show intensification to varying degrees, and the official forecast closely follows the intensity consensus through 48 hours but then is a little higher (close to the SHIPS and LGEM models) on days 3 through 5. The low-level center has been difficult to locate, but the depression appears to be moving westward, or 270/11 kt. An elongated mid-level ridge is expected to remain north of the depression for the next 3 days or so, but the ridge is expected to weaken through the weekend as broad troughing develops west of the Baja California peninsula. This pattern change should cause the cyclone to gradually slow down and turn west-northwestward by day 3 and northwestward by day 5. With the exception of the UKMET model, which does not show a northwestward turn by day 5, the remainder of the track models are tightly clustered. The updated NHC track forecast is close to the multi-model consensus and essentially unchanged from the previous forecast. FORECAST POSITIONS AND MAX WINDS INIT 15/1500Z 10.2N 119.5W 30 KT 35 MPH 12H 16/0000Z 10.1N 121.3W 35 KT 40 MPH 24H 16/1200Z 10.0N 124.0W 45 KT 50 MPH 36H 17/0000Z 10.0N 126.4W 55 KT 65 MPH 48H 17/1200Z 10.0N 128.1W 65 KT 75 MPH 72H 18/1200Z 10.8N 131.0W 85 KT 100 MPH 96H 19/1200Z 12.0N 133.5W 90 KT 105 MPH 120H 20/1200Z 14.5N 136.0W 95 KT 110 MPH $$ Forecaster Berg NNNN