danielw
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| (Moderator) |
| Mon May 23 2005 01:17 AM |
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Re: Anomalies or abnormalities?
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Quote:
"... ANOMALOUSLY STRONG MID/UPPER HIGH IS NEAR BARBADOS RIDGING WESTWARD TO NICARAGUA AND NORTHWARD INTO THE W ATLC. ELY FLOW AT UPPER LEVELS LIES S OF THE RIDGE AXIS... UNUSUAL FOR MAY WHICH USUALLY HAS 20-25 KT WINDS COMING FROM THE WEST IN THOSE AREAS. A DRIER PATTERN WILL MOVE FROM W TO E AS THE SURFACE TROUGH SLIPS SE... WITH MUCH GREATER-THAN- AVERAGE CHANCES OF RAIN ENDING MON ON JAMAICA AND TUE ON HISPANIOLA THOUGH CONDITIONS STILL LOOK A BIT WETTER THAN AVERAGE IN THE LEEWARD ISLANDS..."
I saw the High pressure ridge depicted on the Tropical maps yesterday, but didn't really think that much of it. I wonder how this might influence the Caribbean Climatology for the upcoming Hurricane season. Or, will it have any effect at all?
I didn't say it Would influence the climatology. I was wondering if it might influence the climatology.
I see that San Juan, PR tied a record high of 95 degrees on Saturday. So the high pressure ridge anomaly is having some influence on the area.
Two things come to mind with a high pressure ridge.
Warm/ Hot temperatures, and normally a lack of convection under the ridge.
I also noticed a few other refences to oddities in yesterday's Tropical Weather Discussion.
"...TROPICAL WAVE APPROACHING S AMERICA ALONG 48W S OF 14N MOVING W 15 KT. THE WAVE SHOWS A FAIR SIGNATURE ON VISIBLE SATELLITE PICTURE WITH CONVECTION W OF THE WAVE AXIS IN THE ITCZ... MEANING THE WAVE IS EXPERIENCING ELY SHEAR... WHICH IS RATHER ODD FOR AN EARLY-SEASON WAVE ..."
link>
http://www.srh.noaa.gov/data/NHC/TWDAT.0505211716
"...HEAVY RAIN IS STILL POSSIBLE OVER CENTRAL
AMERICA S OF 13N SINCE THE PACIFIC ITCZ IS N OF ITS CLIMATOLOGICAL POSITION.
IN THE UPPER LEVELS...LARGE ANTICYCLONIC CIRCULATION IS CENTERED OVER THE WINDWARD ISLANDS NEAR 12N61W. AN E/W AXIS EXTENDS W TO NICARAGUA. CONSIDERABLE MOISTURE IS ADVECTING N FROM S AMERICA TO THE CARIBBEAN SEA..."
http://www.srh.noaa.gov/data/NHC/TWDAT.0505220005
Louis, maybe one of the Mets can give us a little insight into these oddities, and what they may or may not bring with them.