Satellite Interpretation Message
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000
ATHW40 PHFO 060527
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC FRI MAR 06 2015

BASED ON DATA THROUGH 0500 UTC MARCH 06 2015

WATER VAPOR IMAGES SHOWED A BROAD TROUGH OF LOW PRESSURE IN THE
MIDDLE ATMOSPHERE TO THE NORTH THROUGH NORTHEAST OF THE MAIN
HAWAIIAN ISLANDS. THIN HIGH CLOUD LAYERS ASSOCIATED WITH THE TROUGH
PARTLY OBSCURED LOWER FEATURES WITHIN 90 MILES OF THE LINE FROM 22N
154W TO 22N 149W. LOWER CLOUDS PASSING UNDER THE TROUGH ALSO
DEVELOPED MORE VERTICALLY.

TO THE NORTHEAST THROUGH SOUTHEAST...A BAND OF DEEP CLOUD LAYERS
PARTLY ASSOCIATED WITH A FRONT EXTENDED ACROSS HAWAIIAN WATERS
WITHIN 300 MILES OF THE CURVE FROM 30N 141W TO 24N 142W TO 20N 144W
TO 17N 148W TO 12N 150W. HIGH TO MIDDLE CLOUD LAYERS ALSO OBSCURED
LOWER FEATURES WITHIN 180 MILES OF THE LINE FROM 20N 156W TO 12N
173W...WHILE DEEP CLOUD LAYERS FROM ACROSS THE DATELINE MOSTLY TO
PARTLY OBSCURED LOWER FEATURES WEST OF THE CURVE FROM 19N 180 TO 22N
172W TO 20N 167W TO 10N 172W. THIN HIGH CLOUD LAYERS SEPARATED FROM
THE DEEPER LAYERS FURTHER WEST ALSO PARTLY TO MOSTLY OBSCURED LOWER
FEATURES WITHIN 60 MILES OF THE LINE FROM 23N 164W TO 20N 158W.

TO THE SOUTH...LIGHT THUNDERSTORM ACTIVITY CONTINUED IN THE ITCZ
FROM 11N TO 03N. LAYERED MIDDLE TO HIGH DEBRIS CLOUDS FROM THIS AND
EARLIER CONVECTION PARTLY TO MOSTLY OBSCURED LOWER FEATURES FROM 11N
TO THE EQUATOR...MAINLY EAST OF 149W OR WEST OF 160W.

OTHERWISE...CLOUD COVER ACROSS HAWAIIAN WATERS CONSISTED MAINLY OF
COLD-AIR CUMULI MERGING INTO AREAS OF LOW TO MIDDLE STRATUS
OVERCAST. THESE CLOUDS GENERALLY ROSE TO HEIGHTS OF 8000 TO 12000
FEET...AND MOVED TOWARD THE WEST SOUTHWEST AT 15 TO 30 MILES AN HOUR.

ACROSS THE MAIN HAWAIIAN ISLANDS...THIN HIGH CLOUD LAYERS FROM THE
WEST MOSTLY OBSCURED LOWER FEATURES. WHERE IT WAS VISIBLE...LOWER
CLOUD COVER CONSISTED MAINLY OF COLD-AIR CUMULI MOVING ASHORE AND
PILING UP INTO STRATUS OVERCAST ALONG SLOPES FACING NORTHWEST
THROUGH NORTHEAST ON THE ONE HAND...AND AFTERNOON CUMULUS BUILDUPS
WITH THEIR LAYERED DEBRIS CLOUDS FORMING OVER MIDDLE TO LOWER
SOUTHEAST THROUGH SOUTHWEST SLOPES ON THE OTHER. SNOW WAS VISIBLE
ON THE SUMMITS OF MAUNA KEA AND MAUNA LOA. AREAS WITH THE LEAST
CLOUD COVER WERE LIMITED MAINLY TO NIIHAU...SOUTHWEST KAUAI...SOUTH
OAHU...SOUTH MOLOKAI...WEST LANAI...WEST SLOPES OF THE WEST MAUI
MOUNTAINS...LOWER TO MIDDLE SLOPES OF SOUTH KOHALA AND NORTH KONA
DISTRICTS ON THE BIG ISLAND...AND THE SUMMITS OF MAUNA LOA AND
MAUNA KEA ON THE BIG ISLAND. THE LOWER CLOUDS VARIED IN HEIGHT FROM
5000 TO 9000 FEET...WHILE THE HIGH CLOUDS APPROACHED HEIGHTS OF
35000 FEET.

RADAR DATA FROM NEAR THE ISLANDS SHOWED SCATTERED SHOWERS ALONG AND
OFFSHORE FROM NORTH SHORES OF OAHU...MOLOKAI...MAUI...AND THE BIG
ISLAND. RADAR DATA ALSO SHOWED SCATTERED SHOWERS IN LEE PLUMES TO
THE SOUTH-SOUTHWEST OF KAUAI AND OAHU...AND OFFSHORE WELL TO THE
SOUTHEAST OF THE BIG ISLAND. ELSEWHERE...RADAR DATA SHOWED ISOLATED
SHOWERS AT MOST.

$$

RYSHKO




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