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WeatherMatrix
© 2002 WeatherMatrix.Net - Redistribution
Prohibited. Usage logged.
From: Jesse Ferrell (WeatherMatrix) (jesse{at}weathermatrix.net)
Date: Wed May 28 2003 - 07:58:12 EDT
At 10:01 AM 5/26/2003 -0400, you wrote:
>Here's something you don't see everyday... I wanted to break this out from
>the normal RECORDS report because it is so unusual.
>
>Both the High AND Low temperature were broken in Hilo, Hawaii
>yesterday. This would normally be impossible for a mainland station, but
>with small normal daily temperature swings, it is possible there on the
>island.
This happened again yesterday. From the NWS in Honolulu:
NATIONAL WEATHER SERVICE HONOLULU HI
0242 AM HST TUE MAY 27 2003
...RECORD HIGH TEMPERATURE SET AT HILO...
A RECORD HIGH TEMPERATURE OF 88 DEGREES WAS SET AT HILO YESTERDAY.
THIS BREAKS THE OLD RECORD OF 87 SET IN 1992.
...RECORD LOW TEMPERATURE SET AT HILO...
A RECORD LOW TEMPERATURE OF 60 DEGREES WAS SET AT HILO YESTERDAY.
THIS BREAKS THE OLD RECORD OF 62 SET IN 1971.
THE CLEAR SKIES AND LOW HUMIDITIES OVER THE EASTERN SIDE OF THE BIG
ISLAND HAVE RESULTED IN ANOTHER DAY OF RECORD LOW AND HIGH
TEMPERATURES. STRONG SUBSIDENCE OF AIR FROM ALOFT OVER HAWAII
BROUGHT DRY AIR FROM HIGH LEVELS OF THE ATMOSPHERE DOWN TO THE
SURFACE AND ELIMINATED THE MARINE LAYER OF MOIST OCEANIC AIR NEAR
THE SURFACE...AND THE NORMAL TRADE WIND INVERSION. THIS RESULTED IN
CLEAR SKIES OVER MOST ALL OF THE BIG ISLAND OF HAWAII EARLY
YESTERDAY MORNING...AND CONTINUING THROUGHOUT THE DAY. THE CLEAR
SKIES ALLOWED MAXIMUM RADIATIONAL COOLING TO LOWER TEMPERATURES TO
RECORD LOW LEVELS YESTERDAY MORNING...THEN PERMITTED MAXIMUM SOLAR
RADIATION TO RAISE TEMPERATURES IN THE VERY SHALLOW LAYER OF MARINE
AIR NEAR THE SURFACE TO RECORD HIGH LEVELS DURING THE AFTERNOON.
AIDING IN THIS PROCESS WAS A SOUTHEAST WIND AT HILO...THAT BROUGHT
WARM AIR TO HILO TOWN FROM ACROSS THE PUNA DISTRICT...RATHER THAN
COOLER AIR FROM THE OCEAN TO THE EAST.
LITTLE CHANGE IN SYNOPTIC CONDITIONS OVER THE NEXT FEW DAYS MEANS
THAT MORE OF THIS WIDE SPREAD IN TEMPERATURES WILL BE POSSIBLE IN
MANY AREAS...BUT ESPECIALLY IN THE HILO AND PUNA DISTRICTS AND OTHER
SUCH FAVORED LOCATIONS. THUS MORE CLEAR AND SUNNY SKIES...AND MORE
RECORD HIGH AND LOW TEMPERATURES MAY RESULT.
FARRELL NATIONAL WEATHER SERVICE HONOLULU
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