Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.
By: Dr. Jeff Masters , 2:11 PM GMT on July 20, 2007
At a Congressional hearing yesterday, results of the independent probe sent by NOAA to investigate management problems at the National Hurricane Center were presented by Dr. Jim Turner. Dr. Turner is deputy director of the National Institute of Standards and Technology, and was leader of the independent team of five people sent to NHC on July 2. Their report (Attachment 9) recommended the permanent removal of Bill Proenza as director of NHC (also called the Tropical Prediction Center, or TPC):
"The current TPC director should be reassigned and not be allowed to return to his position at the center. This should be done due to his failure to demonstrate leadership within the TPC rather than his public statements about the QuikSCAT satellite or NOAA leadership."
In his testimony, the administrator of the National Oceanic and Atmospheric Administration, Conrad Lautenbacher, presented some very damaging evidence against Mr. Proenza. Lautenbacher's written testimony includes a letter (Attachment 2) providing a detailed description of a conference call requested by 11 NHC employees (including 7 of 9 of the hurricane forecasters), with the acting head of the National Weather Service, Mary Glackin. If you want to better understand the NHC controversy, read Attachment 2 describing what was said during the June 19 meeting.
I'll make one more post this afternoon analyzing the science of what was presented at the Congressional hearing. Then, it's time to let this issue fade until the next Congressional hearing on the issue, tentatively planned for December or January. The tropics are starting to heat up, and it's time to focus on the coming hurricane season.
Tropical wave near Puerto Rico
A tropical wave near Puerto Rico is spreading clouds and thunderstorms over a wide area of the Eastern Caribbean, northern Lesser Antilles Islands, and surrounding waters. This wave is under about 20-30 knots of wind shear, thanks to the presence of an upper-level low pressure system to its northwest (Figure 1). This upper low is expected to stay in place an continue to bring hostile wind shear to the area the next few days. I don't expect the shear will allow anything to develop from this tropical wave.
Figure 1. Water vapor image from this morning showing the tropical wave near Puerto Rico, and the upper level low with dry air (dark colors) to its northwest. This upper level low sucking in moist air from the tropical wave, and is bringing hostile wind shear of 20-30 knots over it.
We will need to watch the waters off the Carolina coast on Saturday, when a cold front is expected to push off the coast. Most of the models are predicting the formation of a low pressure system along the tail end of this front by Sunday. This low may be an ordinary extratropical storm--or possibly a subtropical storm--due to the presence of high wind shear. NHC has put a Hurricane Hunter aircraft on standby to investigate the region on Sunday afternoon, if necessary. Even if the low is extratropical, it may be able to suck up plenty of tropical moisture and douse the mid-Atlantic coast and/or New England with heavy rains as early as Monday.
Cosme to skirt Hawaii
Residents of the Hawaiian Islands can relax a bit now, as it appears that Tropical Depression Cosme, will pass well south of the Big Island on Saturday. The edges of the outermost spiral bands will probably bring rains of 1-3 inches to the east side of the Big Island. Wind shear has fallen to 5-10 knots, and ocean temperatures are beginning to warm to 80F under the storm, and I expect Cosme will regain minimal tropical storm strength by Saturday. Satellite imagery of the storm shows that the amount of heavy thunderstorm activity has remained about constant so far today.
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