Tropical Storm Matthew has formed, brings stormy weather.

at201614

PHILIPSBURG – Tropical Storm Matthew has formed and will be passing south to our region during the course of today and tomorrow. At 11 am today, TS Matthew was located at13.4 N and 60.7 W moving at 20 mph W with 60 mph sustained winds and gusts up to 70 mph.

As the storm passes south of our region, our area will incur stormy weather with strong wind gusts and possible heavy rain downpours at times. Residents are requested to monitor this storm and take the necessary precautions.

at201614_sat_anim

As per Wunderground.com 11 am forecast:

Surface observations and data from an Air Force Reserve

reconnaissance aircraft indicate that the tropical wave passing

through the Windward Islands has acquired a closed circulation.  The

aircraft found peak flight-level winds of 64 kt, and SFMR surface

winds of around 50 kt over the northern portion of the circulation.

As a result, advisories are being initiated on a 50-kt tropical

storm. The current lack of inner core structure suggests that

further strengthening should be limited today, but environmental

conditions consisting of warm water and low shear ahead of Matthew

favor intensification throughout the remainder of the forecast

period. The NHC intensity forecast is more conservative than the

statistical guidance, but follows the trends of the global models

in deepening the system.



Since the center has very recently formed, the initial motion

estimate is a highly uncertain 275/18 kt.  A strong deep-layer ridge

over the western Atlantic should steer Matthew westward across the

eastern Caribbean during the next few days, and the track guidance

is tightly clustered through 72 hours.  After that time, the

tropical cyclone will be approaching the western portion of the

ridge and a northwestward turn is expected, although there are

significant differences among the track models as to when the turn

takes place and how sharp it will be.  The GFS takes the cyclone

northwestward much faster than the ECMWF with more troughing

developing over the eastern Gulf of Mexico.  For now, the NHC track

lies near a consensus of the faster GFS and slower ECMWF.





Forecast positions and Max winds



Init  28/1500z 13.4n  60.7w   50 kt  60 mph

 12h  29/0000z 13.6n  63.2w   50 kt  60 mph

 24h  29/1200z 13.9n  66.4w   55 kt  65 mph

 36h  30/0000z 13.9n  69.0w   60 kt  70 mph

 48h  30/1200z 13.8n  71.2w   65 kt  75 mph

 72h  01/1200z 13.5n  74.2w   70 kt  80 mph

 96h  02/1200z 14.8n  75.6w   80 kt  90 mph

120h  03/1200z 17.5n  76.5w   90 kt 105 mph



Source: Wunderground.com https://www.wunderground.com/hurricane/atlantic/2016/
Tropical-Storm-Matthew?map=sat

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