Deep tropical moisture along the southeast coast of the U.S. has been responsible for torrential rains in areas far removed from Hurricane Isaac. For the 24 hour period ending on August 28th the heaviest rain was found along the central east coast of Florida. CoCoRaHs observers in Indian River, St. Lucie, and Martin Counties reported seven to more than 10 inches of rain for the 24 hours ending Tuesday morning, with the CoCoRaHS observer at FL-IR-32 in Vero Beach reporting 10.50 inches of rain.
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| Rainfall for the 24 hour period ending Tuesday, August 28, 2012 in Florida |
Yesterday the heavy rainfall fell along the South Carolina coast, with CoCoRaHS observers north of Charleston, SC reporting four to more than 6 inches of rain. 6.80 inches was reported this morning by the observer at SC-CR-46. A flash flood watch is in effect for the Charleston area through tonight with more rain expected.
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| Rainfall for the 24 hours ending the morning of Wednesday, August 29, 2012 in Charleston, SC |
Meanwhile, Isaac continues his agonizingly slow crawl to the north and west through southern Louisiana. In the past 14 hours Isaac has moved only about 75 miles. As of 10:00 CDT this morning Isaac was still a minimal hurricane with gust over 80 mph measured in some areas. Isaac is pretty impressive on radar and exhibits a distinct but somewhat ragged eye. Radar estimated rainfall is almost 12 inches east of the storm center as of noon CDT. With Isaac moving only at about 5 mph, much more rain can be expected the rest of today.
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| Radar estimated rainfall for the Gulf Coast at 12 noon CDT, August 29, 2012. |
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| Hurricane Isaac as seen from the New Orleans, LA radar at 12 noon CDT, August 29, 2012 |
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