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"Never, say never, when dealing with the weather" also known as the Humberto 2007 slogan. Someone posted "2007 The Season With No Reason" the other night. Now to today's various Discussions. (Excerpts with links to full Discussion) http://www.hpc.ncep.noaa.gov/html/discuss.shtml SHORT RANGE FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 304 PM EDT MON SEP 17 2007 VALID 00Z TUE SEP 18 2007 - 12Z WED SEP 19 2007 ...THE FRONT WHICH DELIVERED THE COOL AIR A FEW DAYS AGO CURRENTLY LIES NEARLY STATIONARY OVER THE WESTERN ATLANTIC BUT IS FORECAST TO RETREAT AS A WARM FRONT AND APPROACH THE SOUTHEAST U.S. COAST LATE TUESDAY AND WEDNESDAY. THAT ALONG WITH THE FORMATION OF A BROAD AREA OF SURFACE LOW PRESSURE OVER THE BAHAMAS SHOULD RESULT IN INCREASING CLOUDINESS AND RAIN CHANCES FROM THE FLORIDA EAST COAST THROUGH THE CAROLINAS GOING INTO TUESDAY AND ESPECIALLY WEDNESDAY. http://www.hpc.ncep.noaa.gov/discussions/pmdspd.html PRELIMINARY EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 959 AM EDT MON SEP 17 2007 VALID 12Z FRI SEP 21 2007 - 12Z MON SEP 24 2007 ...THE 06Z/17 DGEX IS UNUSABLE BECAUSE OF THE WAY IT PULLS TROPICAL ENERGY NWD INTO THE SERN STATES AGAINST ALL OTHER GUIDANCE. ...YDAYS FINAL FCST INDICATING POTENTIAL FOR A WEAK LOW TO TRACK NWWD ACROSS THE GULF OF MEXICO FITS ACCEPTABLY WITHIN THE ENVELOPE OF 00Z MODEL SOLNS... SO WILL MAINTAIN CONTINUITY WITH THIS FEATURE. LATEST THINKING FROM HPC/TPC COORDINATION WILL BE REFLECTED IN THE NEW FINAL FCST LATER TODAY. http://www.hpc.ncep.noaa.gov/preepd/preepd.html EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 318 PM EDT MON SEP 17 2007 VALID 12Z THU SEP 20 2007 - 12Z MON SEP 24 2007 ...PLAINS TO THE ATLANTIC COAST... AFTER ELIMINATING THE DGEX AND CANADIAN AS OUTLIERS IN BRINGING TROPICAL ENERGY WELL N INTO THE SERN STATES...AND THE NAM ALONG THE ERN GULF COAST REGION THU DAY 3...THE PATTERN IS FAIRLY STRAIGHTFORWARD. http://www.hpc.ncep.noaa.gov/discussions/pmdepd.html QUANTITATIVE PRECIPITATION FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 611 PM EDT MON SEP 17 2007 FINAL DAY 1...DAY 2 AND DAY 3 QPF DISCUSSION VALID SEP 18/0000 UTC THRU SEP 21/0000 UTC DAY 1... ...FL... ELY LOW LEVEL FLOW TO THE NORTH OF WEAK E/W STNRY BNDRY WL ALSO SUPPORT SCT SHOWERS ACRS A LARGE SECTION OF THE FL PENINSULA. AS HAS BEEN THE CASE OVER THE PAST 24 HRS..SOME POCKET OF MDT TO HEAVY RAIN IS PSBL ALONG THE IMMEDIATE COAST WHERE LOW LEVEL CONVERGENCE WILL BE MAXIMIZED...THOUGH WITH TIME SOME DRIER AIR SHOULD WORK SWD ALONG THE NRN FL COAST. HEAVIER GFS AMOUNTS LOOK BETTER HERE. http://www.hpc.ncep.noaa.gov/discussions/qpfpfd.html MODEL DIAGNOSTIC DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 119 PM EDT MON SEP 17 2007 VALID SEP 17/1200 UTC THRU SEP 21/0000 UTC MODEL TRENDS... ...LOW LIFTING NORTHWESTWARD FROM THE BAHAMAS... THE NAM HAS TRENDED FASTER AND DEEPER WITH THIS SYSTEM. THE GFS HAS ALSO TRENDED FASTER WITH THE LOW. MODEL DIFFERENCES AND PREFERENCES... ...LOW LIFTING NORTHWESTWARD FROM THE BAHAMAS... THE NAM IS CONSIDERABLY SLOWER AND DEEPER THAN THE GFS WITH THIS SYSTEM. THE GEM GLOBAL MODEL IS SIMILAR TO THE NAM...BUT THESE TWO MODELS HAVE SHOWN THIS DEVELOPED BIAS WITH SYSTEMS ORIGINATING IN THIS REGION THE PAST WARM SEASON. WILL THEREFORE RECOMMEND A SOLUTION CLOSER TO THE FASTER...FLATTER GFS/ECMWF/UKMET MODEL CONSENSUS. http://www.hpc.ncep.noaa.gov/discussions/pmdhmd.html After reading all of the above Discussions. I'll stick with the satellite loops, Also known as "What You see... Is what you get"~danielw |