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Tropical Storm Nora Graphics
2021-08-28 07:54:29| National Hurricane Center (East Pacific)
5-Day Uncertainty Track last updated Sat, 28 Aug 2021 05:54:29 GMT Wind Speed Probabilities last updated Sat, 28 Aug 2021 04:58:05 GMT
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Hurricane Ida Probabilistic Storm Surge Graphics
2021-08-28 06:00:48| National Hurricane Center (Atlantic)
Probabilistic Storm Surge Graphics last updated Sat, 28 Aug 2021 04:00:48 GMT
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Tropical Storm Nora Graphics
2021-08-28 05:31:09| National Hurricane Center (East Pacific)
5-Day Uncertainty Track last updated Sat, 28 Aug 2021 03:31:09 GMT Wind Speed Probabilities last updated Sat, 28 Aug 2021 03:31:09 GMT
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Tropical Storm Nora Forecast Discussion Number 10
2021-08-28 04:44:00| National Hurricane Center (East Pacific)
Issued at 1000 PM CDT Fri Aug 27 2021 000 WTPZ44 KNHC 280243 TCDEP4 Tropical Storm Nora Discussion Number 10 NWS National Hurricane Center Miami FL EP142021 1000 PM CDT Fri Aug 27 2021 Nora's cloud pattern has not become much better organized since earlier today. The central convection has diminished, but this is likely a diurnal fluctuation. Upper-level outflow appears to be fairly well-defined, with convective banding features most prominent over the southern portion of the circulation. Dvorak intensity estimates from both TAFB and SAB remain at 55 kt, so the advisory intensity will be held at that value for now. The storm has been moving a little to the east of the previous track over the past few hours, but the longer-term motion estimate is still northwestward, or 325/9 kt. Nora should move on a northwestward or north-northwestward heading for the next 2-3 days on the southwestern side of a mid-tropospheric anticyclone. Late in the forecast period, the cyclone is forecast to turn northward as the ridge to its north weakens. The official forecast track has been nudged just a bit to the east of the previous one during the next 72 hours or so, but not as far east as the latest dynamical model consensus, TVCE. Nora is expected to be in a moist, low-shear environment for the next few days, so the atmospheric conditions should favor intensification into a hurricane. Nonetheless, the majority of the intensity guidance does not show much strengthening beyond 24 hours, probably due to land interaction. The official intensity forecast shows gradual strengthening for the next couple of days or so, and is similar to the previous one. This is close to the LGEM guidance based on the ECMWF global model fields. It should be noted that there is significant uncertainty in the future strength of Nora because of the possible influence of land. Key Messages: 1. Nora is forecast to strengthen to a hurricane on Saturday while passing nearby the coasts of the Mexican states of Jalisco and Nayarit, and hurricane watches and tropical storm warnings are in effect for portions of that coastline. Interests in these areas should closely monitor the progress of Nora and subsequent updates to the forecast. 2.Heavy rain associated with Nora is expected across coastal sections of the Mexican states of Guerrero, Michoacan, Colima, and Jalisco, as well as Baja California Sur. Life-threatening flash flooding and mudslides are expected. 3. Nora is forecast to move over the Gulf of California as a hurricane early next week, bringing a risk of wind and rain impacts to portions of the Mexican states of Baja California Sur, Sinaloa, and Sonora. Given the above-average uncertainty in the forecast, it is still too soon to determine the magnitude and location of these potential impacts. FORECAST POSITIONS AND MAX WINDS INIT 28/0300Z 16.3N 105.1W 55 KT 65 MPH 12H 28/1200Z 17.6N 105.6W 60 KT 70 MPH 24H 29/0000Z 19.6N 106.2W 65 KT 75 MPH 36H 29/1200Z 21.6N 107.0W 70 KT 80 MPH 48H 30/0000Z 22.7N 107.9W 75 KT 85 MPH 60H 30/1200Z 23.6N 108.6W 80 KT 90 MPH 72H 31/0000Z 24.5N 109.3W 80 KT 90 MPH 96H 01/0000Z 26.5N 111.0W 70 KT 80 MPH 120H 02/0000Z 29.5N 111.5W 45 KT 50 MPH...INLAND $$ Forecaster Pasch
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Hurricane Ida Storm Surge Watch/Warning Map
2021-08-28 04:42:56| National Hurricane Center (Atlantic)
Storm Surge Watch/Warning Map last updated Sat, 28 Aug 2021 02:42:56 GMT
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