Satellite Interpretation Message
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000
ATHW40 PHFO 061207
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1230 UTC FRI MAR 06 2015

BASED ON DATA THROUGH 1200 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 TO MOSTLY OBSCURED LOWER FEATURES WITHIN 100 MILES OF THE
CURVE FROM 23N 152W TO 23N 148W TO 23N 145W. LOWER CLOUDS PASSING
UNDER THE TROUGH ALSO DEVELOPED MORE VERTICALLY.

TO THE NORTHEAST THROUGH SOUTHEAST...A THIN...ROPY CLOUD BAND
ASSOCIATED WITH A FRONT EXTENDED ACROSS HAWAIIAN WATERS WITHIN 45
MILES OF THE LINE FROM 30N 145W TO 25N 148W AND FURTHER NORTH.

CLOUD LAYERS FROM A VARIETY OF SOURCES MOSTLY OBSCURED LOWER
FEATURES BETWEEN THE CURVE FROM 30N 144W TO 28N 144W TO 26N 144W TO
19N 155W TO 23N 170W TO 19N 180...AND THE CURVE FROM 15N 140W TO 12N
150W TO 11N 165W TO 06N 162W TO 02N 180.

TO THE SOUTH...LIGHT TO MODERATE THUNDERSTORM ACTIVITY CONTINUED IN
THE ITCZ FROM 12N TO 03N...MOSTLY WEST OF 162W. HOWEVER...
THUNDERSTORMS WITHIN 160 MILES OF THE LINE FROM 14N 149W TO 08N 143W
ALSO MAY HAVE BEEN PART OF THE ITCZ. LAYERED MIDDLE TO HIGH DEBRIS
CLOUDS FROM THIS AND EARLIER CONVECTION CONTRIBUTED TO THE CLOUD
LAYERS DESCRIBED IN THE PRECEDING PARAGRAPH...AND ALSO PARTLY TO
MOSTLY OBSCURED LOWER FEATURES FROM 11N TO THE EQUATOR.

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 PARTLY OBSCURED LOWER FEATURES OVER THE BIG ISLAND. 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. LAYERED DEBRIS CLOUDS FROM
AFTERNOON CUMULUS BUILDUPS ON THURSDAY LARGELY HAD MERGED INTO THE
SURROUNDING CLOUDS...BUT REMAINED IMPORTANT...ESPECIALLY OVER THE
BIG ISLAND. THE LOWER CLOUDS VARIED IN HEIGHT FROM 5000 TO 12000
FEET...WHILE THE HIGH CLOUDS APPROACHED HEIGHTS OF 30000 FEET.

RADAR DATA FROM NEAR THE ISLANDS SHOWED AREAS OF RAIN ALONG...AND
SCATTERED SHOWERS 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...OAHU...AND MAUI...
AND SCATTERED SHOWERS OFFSHORE WELL TO THE SOUTHEAST OF THE BIG
ISLAND. ELSEWHERE...RADAR DATA SHOWED ISOLATED SHOWERS AT MOST.

$$

RYSHKO





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