Satellite Interpretation Message
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000
ATHW40 PHFO 270515
SIMHI
HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC WED MAY 27 2015

BASED ON DATA THROUGH 0500 UTC MAY 27 2015

WATER VAPOR IMAGES SHOWED A BROAD AREA OF LOW PRESSURE IN THE MIDDLE
ATMOSPHERE TO THE NORTH OF THE MAIN HAWAIIAN ISLANDS. LAYERED HIGH
TO MIDDLE CLOUD LAYERS ASSOCIATED WITH THIS FEATURE PARTLY TO MOSTLY
OBSCURED LOWER FEATURES NORTH OF THE CURVE FROM 30N 150W TO 24N 159W
TO 27N 180.

TO THE NORTHEAST...A BAND OF DEEP CLOUD LAYERS ASSOCIATED WITH A
WEAKENING FRONT EXTENDED ACROSS HAWAIIAN WATERS NORTHEAST OF THE
CURVE FROM 30N 140W TO 24N 153W TO 25N 157W TO 26N 152W TO 30N 147W.

TO THE EAST...A BAND OF MIDDLE TO LOW CLOUD LAYERS ASSOCIATED WITH
ANOTHER FRONT EXTENDED ACROSS HAWAIIAN WATERS NORTHEAST OF THE CURVE
FROM 27N 140W TO 22N 145W TO 19N 146W TO 23N 140W.

TO THE SOUTH...LIGHT THUNDERSTORM ACTIVITY CONTINUED IN THE ITCZ
FROM 12N TO 02N. LAYERED HIGH TO MIDDLE DEBRIS CLOUDS FROM THIS AND
EARLIER CONVECTION PARTLY TO MOSTLY OBSCURED LOWER FEATURES SOUTH OF
THE CURVE FROM 17N 140W TO 18N 146W TO 09N 157W TO 14N 166W TO 19N
154W TO 19N 162W TO 112N 174W TO 14N 175W TO 14N 180W.

OTHERWISE...CLOUD COVER ACROSS HAWAIIAN WATERS CONSISTED MAINLY OF
MARINE STRATOCUMULI MERGING INTO AREAS OF NEARLY SOLID LOW TO MIDDLE
STRATUS OVERCAST NORTH OF THE CURVE FROM 30N 140W TO 16N 154W TO 17N
171W TO 28N 180. INDIVIDUAL SMALL CUMULI ALSO OCCURRED THROUGHOUT.
THESE CLOUDS GENERALLY ROSE TO HEIGHTS OF 10000 TO 12000 FEET...AND
MOVED TOWARD THE SOUTH TO SOUTHWEST...THOUGH EAST OF 150W THEY
CURVED AROUND TOWARD THE EAST AND THEN THE NORTHEAST.

ACROSS THE MAIN HAWAIIAN ISLANDS...CLOUD COVER CONSISTED MOSTLY OF
MIDDLE TO LOW STRATUS OVERCAST MOVING ASHORE AND BANKING UP ALONG
SLOPES FACING NORTH. IN PLACES...THESE CLOUDS PASSED COMPLETELY
ACROSS THE SMALLER ISLANDS. AREAS WITH THE LEAST CLOUD COVER WERE
LIMITED MAINLY TO NIIHAU...SOUTH OAHU...WEST MOLOKAI...EXTREME WEST
MAUI...COASTAL LANAI...AND THE SUMMITS OF MAUNA KEA AND MAUNA LOA ON
THE BIG ISLAND. THESE CLOUDS GENERALLY ROSE TO HEIGHTS OF 7000 TO
11000 FEET.

RADAR DATA FROM NEAR THE ISLANDS SHOWED SCATTERED SHOWERS OFFSHORE
TO THE SOUTH OF KAUAI AND OAHU...OFFSHORE AROUND THE ISLANDS OF MAUI
COUNTY...ALONG THE NORTHWEST COAST OF THE BIG ISLAND...AND OFFSHORE
TO THE SOUTHEAST OF THE BIG ISLAND. ELSEWHERE...RADAR DATA SHOWED
ISOLATED SHOWERS AT MOST.

$$

RYSHKO




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