Satellite Interpretation Message
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12
000
ATHW40 PHFO 290521 CCA
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
0530 UTC TUE JUL 29 2014

BASED ON DATA THROUGH 0500 UTC JULY 29 2014

WATER VAPOR IMAGES SHOWED A BROAD BUT SHALLOW AREA OF LOW PRESSURE
IN THE MIDDLE ATMOSPHERE TO THE NORTH OF THE MAIN HAWAIIAN ISLANDS.
ISOLATED TOWERING CUMULI DEVELOPED UNDER THIS FEATURE WITHIN 90
MILES OF THE POINT 29N 153W...AND ALSO WITHIN 60 MILES OF THE POINT
26N 164W. MIDDLE TO HIGH LAYERED DEBRIS CLOUDS FROM THIS CONVECTION
PARTLY TO MOSTLY OBSCURED LOWER FEATURES WITHIN 150 MILES OF THE
POINT 29N 151W...AND ALSO WITHIN 150 MILES OF THE POINT 26N 163W.

TO THE NORTHWEST...DEEP LAYERED CLOUDS ASSOCIATED WITH A FRONT
OBSCURED LOWER FEATURES MOSTLY TO COMPLETELY NORTHWEST OF THE CURVE
FROM 30N 174W TO 28N 175W TO 28N 180. THINNER HIGH CLOUD LAYERS ALSO
PARTLY OBSCURED LOWER FEATURES UP TO ABOUT 180 MILES FURTHER
SOUTHEAST.

TO THE SOUTHWEST...A CURVED BAND OF MIDDLE CLOUDS WITH EMBEDDED
TOWERING CUMULI WAS LOCATED WITHIN 60 MILES OF THE CURVE FROM 18N
173W TO 18N 176W TO 16N 177W TO 14N 177W. THIS FEATURE MOVED TOWARD
THE WEST NORTHWEST AT AROUND 20 MILES AN HOUR.

TO THE SOUTH...LIGHT TO MODERATE THUNDERSTORM ACTIVITY CONTINUED IN
THE ITCZ FROM 15N TO 03N. THREE WEAK LOWS WERE EMBEDDED IN THE ITCZ
NEAR 07N 174W...12N 162W...AND 13N 147W...RESPECTIVELY. LAYERED
MIDDLE TO HIGH DEBRIS CLOUDS FROM THIS AND EARLIER CONVECTION MOSTLY
OBSCURED LOWER FEATURES BETWEEN THE CURVE FROM 17N 140W TO 18N 146W
TO 17N 156W TO 15N 163W TO 11N 166W TO 15N 175W TO 09N 180...AND THE
CURVE FROM 05N 140W TO 03N 145W TO 06N 150W TO 04N 157W TO 07N 161W
TO 0N 161W. THINNER HIGH CLOUD LAYERS STREAMING OUT OF THE ITCZ ALSO
PARTLY OBSCURED LOWER FEATURES WITHIN 120 MILES OF THE CURVE FROM
21N 140W TO 22N 146W TO 17N 154W.

OTHERWISE...CLOUD COVER ACROSS HAWAIIAN WATERS CONSISTED MAINLY OF
MARINE STRATOCUMULI AND CUMULI. THESE CLOUDS WERE ORGANIZED MOSTLY
INTO LOOSE CLUMPS AND BANDS UP TO ABOUT 240 MILES ACROSS...BUT THEY
MERGED INTO A LARGE AREA OF NEARLY SOLID LOW TO MIDDLE OVERCAST
SOUTHEAST OF THE CURVE FROM 24N 140W TO 25N 142W TO 16N 151W.
INDIVIDUAL SMALL CUMULI ALSO WERE PRESENT THROUGHOUT. THESE CLOUDS
GENERALLY MOVED TOWARD THE WEST SOUTHWEST AT AROUND 15 MILES AN
HOUR...AND ROSE TO HEIGHTS OF 7000 TO 11000 FEET...THOUGH TALLER
CUMULI APPROACHED 15000 FEET.

ACROSS THE MAIN HAWAIIAN ISLANDS...CLOUD COVER CONSISTED ABOUT
EQUALLY OF MARINE STRATOCUMULI AND CUMULI MOVING ASHORE ALONG SLOPES
FACING NORTH THROUGH EAST ON THE ONE HAND...AND AFTERNOON CUMULUS
BUILDUPS WITH THEIR LAYERED DEBRIS CLOUDS OVER HIGHER TERRAIN INLAND
ON THE OTHER. BANDING OF THE CLOUDS OVER OAHU PARALLEL TO THE
MOUNTAIN RANGES ON THAT ISLANDS IMPLIED THE PRESENCE OF TURBULENCE
WITHIN THE CLOUD LAYER. AREAS WITH THE LEAST CLOUD COVER WERE
LIMITED MOSTLY TO NIIHAU...WEST-CENTRAL KAUAI...SOUTHWEST OAHU...THE
WEST THREE QUARTERS OF MOLOKAI...COASTAL LANAI...THE CENTRAL ISTHMUS
ON MAUI... THE SUMMIT AND SOUTH SLOPES OF HALEAKALA ON MAUI...THE
WEST COAST OF NORTH AND SOUTH KOHALA DISTRICT ON THE BIG ISLAND...
THE KAU DESERT ON THE BIG ISLAND...AND THE SUMMIT AND MIDDLE TO
UPPER SLOPES OF MAUNA KEA ON THE BIG ISLAND. THESE CLOUDS GENERALLY
ROSE TO HEIGHTS OF 5000 TO 8000 FEET...THOUGH A CUMULUS BUILDUP OVER
THE SLOPES OF MAUNA LOA ON THE BIG ISLAND APPROACHED 15000 FEET.
RADAR DATA FROM NEAR THE ISLANDS SHOWED ISOLATED SHOWERS AT MOST.

$$

RYSHKO






USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.