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Hurricane Kiko Forecast Discussion Number 15
2019-09-16 04:32:23| National Hurricane Center (East Pacific)
Issued at 800 PM PDT Sun Sep 15 2019 000 WTPZ43 KNHC 160232 TCDEP3 Hurricane Kiko Discussion Number 15 NWS National Hurricane Center Miami FL EP132019 800 PM PDT Sun Sep 15 2019 Kiko has lost some organization this evening. The eye of the hurricane has been filling, and the convective pattern is not as symmetric as it was earlier today. The initial intensity is lowered only slightly to 110 kt, following a blend of the latest satellite intensity estimates, but this could be a little generous. Recent ASCAT data indicate that although Kiko is a powerful hurricane, its wind field is quite compact. Based on that data, Kiko's tropical-storm-force winds extend no more than 50 n mi from the center, with hurricane-force winds estimated to extend up to 20 n mi from the center. The hurricane is moving westward at about 7 kt, steered by a narrow subtropical ridge to its north. This motion with a decrease in forward speed is expected for about 24 hours. The models all depict Kiko bending to the west-southwest late Monday and Tuesday in response to a ridge building to its northwest. After that time, the model solutions diverge considerably with some taking Kiko to the northwest and others more westward or southwestward. The NHC official track forecast lies roughly near the middle of the guidance envelope, and the bottom line is that Kiko will likely be moving slowly over the eastern Pacific waters during the next several days. The intensity models all show Kiko gradually weakening through the forecast period. Some of this weakening is likely to be a result of upwelling due to its expected slow motion and perhaps intrusions of dry air. The NHC intensity forecast is a little lower than the previous one and generally follows the guidance of the intensity consensus aids. FORECAST POSITIONS AND MAX WINDS INIT 16/0300Z 17.2N 122.6W 110 KT 125 MPH 12H 16/1200Z 17.3N 123.4W 100 KT 115 MPH 24H 17/0000Z 17.3N 124.3W 95 KT 110 MPH 36H 17/1200Z 17.2N 125.1W 85 KT 100 MPH 48H 18/0000Z 17.0N 125.9W 80 KT 90 MPH 72H 19/0000Z 17.0N 127.8W 70 KT 80 MPH 96H 20/0000Z 17.4N 129.4W 65 KT 75 MPH 120H 21/0000Z 17.6N 131.4W 55 KT 65 MPH $$ Forecaster Cangialosi
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