The Real Threat of Tropical Storm/Hurricane Isaac

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The media isn't talking about this much, but the real threat of tropical storm Isaac may be heavy precipitation and flooding....not winds and storm surge.

Recent model runs suggest the storm might stall over southern Lousiana, resulting in huge amounts of precipitation (storm totals of 12-24 inches in some locations).   Here is the latest storm total precipitation totals form the NWS GFS (78 hr total) and NAM (84 hour total) models for runs started at 1200 UTC this morning:


Pretty impressive precipitation.

 And here is a nice satellite image of Isaac at 11 AM with some observations plotted.  One report of 70 knots near the center.  No obvious eye at this time.  The lowest pressure observed is 987.8 hPa.