Tropical Storm Nicholas Tracking To Rain Ravaged Region.
BY: WEATHER TEAM | BocaNewsNow.com
BOCA RATON, FL (BocaNewsNow.com) (Copyright © 2021 MetroDesk Media, LLC) — There are two systems of note that are likely to form east of Florida over the next several days.
The wave that you see above in red has a 70 percent chance of developing into a tropical cyclone within the next five days.
The wave marked by the orange oval has a 50 percent chance of development over the next five days.
Ovals indicate where a storm may form, not necessarily a direction of travel.
Meantime, Tropical Storm Nicholas continues on a path to the rain ravaged region still cleaning up from Hurricane Ida.
The next storm names: Odette and Peter.
This is the early morning update from the National Hurricane Center:
Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 AM EDT Mon Sep 13 2021 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Tropical Storm Nicholas, located over the western Gulf of Mexico. 1. A tropical wave is expected to emerge off the west coast of Africa later today. Environmental conditions are forecast to be conducive for gradual development of this system thereafter, and a tropical depression is likely to form by late this week while it moves westward at 10 to 15 mph across the eastern tropical Atlantic Ocean. * Formation chance through 48 hours...low...20 percent. * Formation chance through 5 days...high...70 percent. 2. An area of low pressure is forecast to form by midweek a couple of hundred miles north of the southeastern or central Bahamas as a tropical wave interacts with an upper-level trough. Some gradual development of this system is possible thereafter, and a tropical depression could form later this week while the system moves north-northwestward or northward across the western Atlantic. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...medium...50 percent. 3. Showers and thunderstorms remain very limited in association with a non-tropical area of low pressure over the far northeastern Atlantic, about midway between the Azores and Portugal. Tropical or subtropical development of this system is no longer expected while it moves eastward and then inland over Portugal by late Tuesday. * Formation chance through 48 hours...low...near 0 percent. * Formation chance through 5 days...low...near 0 percent. Public Advisories on Tropical Storm Nicholas are issued under WMO header WTNT34 KNHC and under AWIPS header MIATCPAT4. Forecast/Advisories on Tropical Storm Nicholas are issued under WMO header WTNT24 KNHC and under AWIPS header MIATCMAT4.
This is the Nicholas update:
Tropical Storm Nicholas Discussion Number 5 NWS National Hurricane Center Miami FL AL142021 400 AM CDT Mon Sep 13 2021 Radar data from Brownsville shows that the center of Nicholas is on the southwestern side of a large area of deep convection over the western Gulf of Mexico. While southwesterly shear continues to affect the storm, the radar presentation has recently improved, with what could be the start of a partial eyewall forming in the northern quadrant. The initial wind speed remains 50 kt based on earlier aircraft flight-level winds of 59 kt, believable SFMR values up to 50 kt, along with radar winds at 5000 ft near 60 kt. The storm is moving north-northwestward at about 12 kt. Nicholas is forecast to turn northward soon into a weakness in the subtropical ridge. The track prediction is only nudged slightly westward from the previous one through landfall, consistent with recent model guidance. Thereafter, there isn't good agreement among the models on how quickly the tropical cyclone will move northeastward out of Texas. Generally the models are faster this cycle, which seems believable given the large northward re-formation earlier likely exposing Nicholas to stronger mid-latitude flow. Thus the new NHC forecast is trended faster as well, but remains behind the model consensus. Obviously the forward speed is important to the heavy rainfall forecast, and this trend will be one to watch. Nicholas should continue to strengthen up until landfall due primarily to the very warm Gulf waters and the recent inner-core improvements. Moderate southwesterly shear and some dry air are the main inhibiting factors and will hopefully keep the strengthening in check. However, it is possible that Nicholas could become a hurricane before landfall, and that's the reason for the hurricane watch area. Nicholas should weaken after landfall, diminish into a tropical depression within a couple of days, and degenerate into a remnant low in about 3 days. No significant changes were made to the previous NHC wind speed prediction. Key Messages: 1. Heavy rainfall will impact portions of the Texas and Louisiana coasts through the middle of the week. Significant rainfall amounts are possible, potentially resulting in areas of considerable flash and urban flooding, especially in highly urbanized metropolitan areas. Isolated minor to moderate river flooding is also expected. 2. There is the danger of life-threatening storm surge inundation along the coast of Texas from Port Aransas to San Luis Pass. Residents in these areas should follow any advice given by local officials. 3. Nicholas is forecast to approach the middle Texas coast as a strong tropical storm today, and could be near hurricane intensity at landfall. Tropical storm conditions are expected along portions of the middle Texas coast beginning by this afternoon, with hurricane conditions possible from Port Aransas to Freeport this afternoon and tonight. 4. Tropical storm conditions are expected along portions of the northeastern coast of Mexico and the coast of south Texas beginning during the next few hours. FORECAST POSITIONS AND MAX WINDS INIT 13/0900Z 25.5N 96.6W 50 KT 60 MPH 12H 13/1800Z 27.3N 96.8W 60 KT 70 MPH 24H 14/0600Z 29.2N 96.5W 45 KT 50 MPH...INLAND 36H 14/1800Z 30.6N 95.8W 35 KT 40 MPH...INLAND 48H 15/0600Z 31.5N 94.5W 30 KT 35 MPH...INLAND 60H 15/1800Z 32.1N 93.0W 25 KT 30 MPH...INLAND 72H 16/0600Z 32.5N 91.5W 20 KT 25 MPH...POST-TROP/REMNT LOW 96H 17/0600Z...DISSIPATED
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