Matthew along the east coast of Florida

October 7th, 2016 |

GOES-13 Visible (0.63 µm) Imagery, 1230-1337 UTC (Click to enlarge)

Hurricane Matthew is on a path that parallels the coast of Florida, with the center remaining just offshore. GOES-13 Visible imagery from a 1-hour time period this morning, above, shows the continued development of convection around the eyewall and the motion of convective bands inland. GOES-13 Visible images with hourly surface winds and wind gusts (in knots) are shown below. The highest wind gust recorded along the central Florida coast was 107 mph (NWS Melbourne PNS).

GOES-13 Visible (0.63 um) images, with hourly surface winds and gusts in knots [Click to play animation]

GOES-13 Visible (0.63 um) images, with hourly surface winds and gusts in knots [Click to play animation]

A 24-hour animation of morphed Microwave imagery (from this site), below, suggests that an eyewall replacement cycle has completed: the very small eye present at storm’s center at the start of the animation has been replaced by a larger-diameter eye at the end of the animation. Storm strength typically drops during eyewall replacements. Note also that the microwave data shows that the strongest convection remained offshore.

mimic_microwave_24hending1100utc07october

Morphed Microwave Imagery of Matthew showing Strongest Convection, 1200 UTC 06 October to 1100 UTC 07 October 2016 (Click to enlarge)

Infrared imagery from GOES-13, below, also shows the coldest cloud tops to the east of the eye (indicated by the arrow in the image).

GOES-13 Infrared (10.7 µm) Imagery, 1355 UTC. The flashing arrow points to Matthew’s eye (Click to enlarge)

A longer animation of GOES-13 Infrared Window (10.7 um) images with hourly surface winds and wind gusts (in knots) is shown below (MP4 | animated GIF).

GOES-13 Infrared Window (10.7 um) images [Click to play animation]

GOES-13 Infrared Window (10.7 um) images [Click to play animation]

A toggle between Suomi NPP VIIRS Visible (0.64 um) and Infrared Window (11.45 um) images at 1751 UTC is shown below; Matthew was a Category 3 hurricane at that time.

Suomi NPP VIIRS Visible (0.64 um) and Infrared Window (11.45 um) images [Click to enlarge]

Suomi NPP VIIRS Visible (0.64 um) and Infrared Window (11.45 um) images [Click to enlarge]