Diddakoi Walt Whitman
Take me home...St Emilion  kay@diddakoi.com

Updated: 12/06/05



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"Quicksilver"
by Neal Stephenson

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snow


Tuesday, 6 December, 2005

No, I don't want to talk about the Eagles. Thank you, cousin Carol for the sympathy e-mail, although I expected my Seattle-based cousins to be the ones giving me grief about our battered birds.

What I did want to talk about - briefly - is Hurricane Epsilon - The Storm That Would Not Die. It's nowhere near land - floating in big circles somewhere out in the Atlantic, but the situation with the National Hurricane Center forecasters is getting humorous.

They first began issuing advisories on Tropical Storm Epsilon on November 29th. In that first briefing, they noted:

BY 96 HOURS... EPSILON IS EXPECTED TO ACCELERATE RAPIDLY NORTHEASTWARD AND BECOME EXTRATROPICAL OR POSSIBLY EVEN BECOME ABSORBED BY THE MUCH LARGER EXTRATROPICAL LOW PRESSURE SYSTEM.

From that point on, Epsilon has refused to do what they think it will, or even to follow the physical laws of hurricanes.

NOV 30:
EPSILON HAS BECOME BETTER ORGANIZED THIS MORNING WITH SATELLITE IMAGERY INDICATING CONVECTION HAS NOW WRAPPED MORE THAN 75 PERCENT AROUND THE CENTER... WITH A HINT OF A RAGGED BANDING EYE FEATURE POSSIBLY DEVELOPING.

DEC 1:
OUTER CONVECTIVE BANDING FEATURES HAVE IMPROVED AND A RAGGED BANDING EYE FEATURE APPEARS TO TRYING TO DEVELOP...AGAIN. IT IS STILL POSSIBLE THAT EPSILON COULD BRIEFLY REACH HURRICANE STRENGTH. HOWEVER... BY 24 HOURS THE EFFECTS OF COOLER WATER AND INCREASING WESTERLY SHEAR SHOULD GRADUALLY INDUCE SLOW BUT STEADY WEAKENING... AND EPSILON IS EXPECTED TO BECOME EXTRATROPICAL BY 48 HOURS.

DEC 2 - Upgraded from Tropical Storm to Hurricane:
DEEP CONVECTION HAS MADE SOMEWHAT OF A COMEBACK DURING THE PAST SEVERAL HOURS...DESPITE MOVING OVER SLIGHTLY COOLER WATER SINCE THIS TIME YESTERDAY ...EPSILON HAS CONTINUED TO BECOME BETTER ORGANIZED WITH A SOLID CONVECTIVE BAND NOW WRAPPING COMPLETELY AROUND THE CYCLONE CENTER. EPSILON SHOULD BEGIN TO STEADILY WEAKEN WITHIN THE NEXT 12-18 HOURS AND PROBABLY BECOME EXTRATROPICAL BY 36 HOURS.

DEC 3:
EPSILON IS A TENACIOUS TROPICAL CYCLONE WHICH HAS MAINTAINED HURRICANE INTENSITY OVER COOL WATERS AND APPARENT UNFAVORABLE ATMOSPHERIC CONDITIONS. EPSILON HAS CONTINUED TO STRENGTHEN AGAINST ALL ODDS. THE CLOUD PATTERN IS REMARKABLY WELL-ORGANIZED FOR A HURRICANE AT HIGH LATITUDE IN DECEMBER...EPSILON CAN NOT MAINTAIN THE CURRENT INTENSITY MUCH LONGER SINCE THE ENVIRONMENT IS BECOMING INCREASINGLY UNFAVORABLE.

DEC 4 - downgraded to Tropical Storm at 4:00 a.m., then re-upgraded to Hurricane at 10:00 a.m.:
AFTER A SLIGHT WEAKENING OVERNIGHT...MORNING SATELLITE IMAGES INDICATE THAT EPSILON HAS RESTRENGTHENED. THERE ARE NO CLEAR REASONS...AND I AM NOT GOING TO MAKE ONE UP...TO EXPLAIN THE RECENT STRENGTHENING OF EPSILON AND I AM JUST DESCRIBING THE FACTS. HOWEVER...I STILL HAVE TO MAKE AN INTENSITY FORECAST AND THE BEST BET AT THIS TIME IS TO PREDICT WEAKENING DUE TO COLD WATER ...HIGH SHEAR AND DRY AIR. THE UPPER LEVEL WINDS ARE EXPECTED TO BE HIGHLY UNFAVORABLE AND EPSILON WILL LIKELY BECOME A REMNANT LOW. I HEARD THAT BEFORE ABOUT EPSILON...HAVEN'T YOU?

DEC 5:
Morning Advisory: DEEP CONVECTION IN THE EYEWALL...WHICH HAD BEEN RAGGED IN THE SOUTHEASTERN QUADRANT EARLIER...HAS BECOME COLDER AND MORE SYMMETRIC OVER THE PAST SEVERAL HOURS. WITH THE SOUTHWARD COMPONENT OF MOTION CONTINUING IT SEEMS THAT AN IMMINENT EXTRATROPICAL TRANSITION IS...ALAS...A LOST CAUSE.

Evening Advisory: WE HAVE SAID THIS BEFORE AT TIMES DURING THE PAST SEVERAL NIGHTS... ONLY TO HAVE EPSILON MAKE A COMEBACK THE FOLLOWING MORNING... BUT EPSILON REALLY DOES NOT APPEAR AS STRONG THIS EVENING AS IT DID THIS AFTERNOON.

I checked the morning advisory today to see if Epsilon had finally given up . . . but apparently it is the NHC that has thrown in the towel:

DEC 6:

I HAVE RUN OUT OF THINGS TO SAY...AND THIS ONE WILL BE SHORT. EPSILON CONTINUES ON STEADY STATE WITH A RING OF DEEP CONVECTION WHICH INTERMITTENTLY SURROUNDS THE LARGE EYE. INITIAL INTENSITY REMAINS AT 65 KNOTS BUT A GRADUAL WEAKENING IS ANTICIPATED.

It seems appropriate that in a record-setting year like this one, that the storms just don't want to give up. The Hurricane Season ended six days ago, and the forecasters are still at work. Hopefully their vacations will start soon.

[I wonder if they'll go to the islands?]

Quote du jour:

"The rule on staying alive as a forecaster is to give 'em a number or give 'em a date, but never give 'em both at once."

Jane Bryant Quinn (1939 - ____) US journalist

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