Flash Flood in Hawaii, February 8, 2001

AFDHI
HAWAIIAN ISLANDS SYNOPTIC DISCUSSION AND GUIDANCE
NATIONAL WEATHER SERVICE HONOLULU HI
830 PM HST WED FEB 7 2001

SUMMARY...A LOW NORTH NORTHWEST OF HONOLULU CONTINUES TO MOVE SLOWLY
TO THE NORTHWEST. AS A RESULT...WINDS ACROSS THE ISLANDS WILL BE
LIGHT AND VARIABLE IN DIRECTION. SOME SHOWERS ARE LIKELY TO DEVELOP
IN THE AFTERNOON AND EVENING HOURS...ESPECIALLY OVER THE LARGER
ISLANDS.  SOME OF THESE SHOWERS COULD BE HEAVY AT TIMES.

DISCUSSION...THE LOW IS CENTERED ABOUT 350 NM NORTH NORTHWEST OF
HONOLULU AND IS MOVING SLOWLY TO THE NORTHWEST. THE LOW CONTINUES TO
WEAKEN AND SHOULD LIFT TO THE NORTH IN TIME. THE WEAK PRESSURE
GRADIENT SOUTH OF THIS SYSTEM PLACES THE ISLANDS IN GENERALLY LIGHT
AND VARIABLE WINDS.  AFTERNOON HEATING...ESPECIALLY OVER THE LARGER
ISLANDS... MAY DEVELOP SHOWERS BOTH THURSDAY AFTERNOON AND FRIDAY.
SOME OF THESE SHOWERS MAY BE HEAVY AT TIMES. AN UPPER AIR TROUGH
WILL ADD TO THE INSTABILITY OVER THE ISLANDS THRU FRIDAY. TRADE
WINDS WILL START RETURNING TO THE ISLAND BY FRIDAY STARTING WITH THE
BIG ISLAND AND WORKING THEIR WAY NORTH IN TIME.

SURF...THE LOW TO THE NORTH WILL CONTINUE TO SEND A SWELL TO OUR
NORTH AND EAST SHORES. THE SWELL AND SURF WILL SLOWLY DROP OFF
TONIGHT AFTER HIGH TIDE.  A SEPARATE NORTHWEST SWELL WILL CONTINUE
TO BRING SURF OF ADVISORY HEIGHTS ALONG THE NORTH SHOWERS THRU
TOMORROW.  OLSON.

.PHFO.....WARNINGS.....NONE/
.         WATCHES......NONE
.         ADVISORIES...HIGH SURF NORTH AND EAST SHORES