Tropical Storm Fiona

September 2nd, 2010 |
GOES-13 0.63 µm visible images

GOES-13 0.63 µm visible images

McIDAS images of GOES-13 0.63 µm visible channel data (above, also available as a QuickTime movie) showed some interesting details associated with Tropical Storm Fiona in the central Atlantic Ocean on 02 September 2010: a series of intense convective bursts just south of a partially-exposed low-level circulation center, and a large northward-moving “outflow boundary” arc cloud. The GOES-13 satellite had been placed into Rapid Scan Operations (RSO) model, allowing images as frequently as every 5-10 minutes.

AWIPS images of the MIMIC Total Precipitable Water (TPW) product (below) revealed that a significant plume of TPW was being drawn northward from Tropical Storm Fiona into the circulation of Hurricane Earl. Note to National Weather Service forecast offices: see this site for details on how the CIMSS MIMIC TPW product can be added to your local AWIPS workstations, via Unidata LDM subscription.

MIMIC Total Precipitable Water product

MIMIC Total Precipitable Water product

Earl approaches the East Coast of the United States

September 2nd, 2010 |

Morphed Microwave Imagery

Morphed Microwave Imagery (MIMIC), above, shows the evolution of the structure of Earl’s eye over the past 48 hours as Earl has strengthened from a Category 3 storm back to Category 4.

POES AVHRR 0.63 µm visible and 10.8 µm IR images

POES AVHRR 0.63 µm visible and 10.8 µm IR images

An AWIPS view of NOAA-16 AVHRR imagery (0.63 and 10.8 micron data, including ocean buoy reports) from just past 1200 UTC on 2 September, above, shows a well-defined eye nearly surrounded by convective clusters with temperatures near -75 C.

The northwestward motion of Hurricane Earl could be seen in a sequence of AWIPS images of POES AVHRR 10.8 µm IR and MODIS 11.0 µm IR data (below).

POES AVHRR 10.8 µm IR and MODIS 11.0 µm IR images

POES AVHRR 10.8 µm IR and MODIS 11.0 µm IR images

The visible imagery loop from this morning (below; also available as a QuickTime movie) from GOES-15 shows a steady motion just west of north.

GOES-15 0.63 µm visible channel images

GOES-15 0.63 µm visible channel images

Click here for a true-color image of Earl derived from Terra MODIS data.