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
000
ATHW40 PHFO 011831
SIMHI

HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI
1830 UTC SAT AUG 01 2015

BASED ON DATA THROUGH 1800 UTC AUGUST 01 2015

HURRICANE GUILLERMO WAS NEARING THE CENTRAL NORTH PACIFIC REGION
THIS MORNING.  IT WAS ABOUT 1130 MILES EAST-SOUTHEAST OF HILO HAWAII
AT 8 AM.  THIS TROPICAL CYCLONE WAS MOVING WEST NEAR 15 MILES AN
HOUR.

THE REMNANT OF POST-TROPICAL CYCLONE EIGHT-E WAS CENTERED ABOUT 300
MILES SOUTHEAST OF HILO.  IT WAS MOVING WEST AT 10 TO 15 MILES AN
HOUR.  ISOLATED THUNDERSTORMS NEAR ITS CENTER HAD FLARED UP A BIT
DURING THE MORNING HOURS.  STORM TOPS WERE AROUND 48000 FEET.  BUT
THIS SYSTEM IS NOT EXPECTED TO REDEVELOP.

SCATTERED THUNDERSTORMS ASSOCIATED WITH A WEAK SURFACE TROUGH WERE
FORMING JUST SOUTHWEST OF JOHNSTON ISLAND.  THE THUNDERSTORMS WERE
WITHIN A 250 MILES WIDE AREA CENTERED NEAR 14N 168W.  THE TROUGH
AND THUNDERSTORMS WERE MOVING WEST AT 10 TO 15 MILES AN HOUR.  STORM
TOPS WERE NEAR 55000 FEET.

MEANWHILE...TRADE WINDS CONTINUED TO SWEEP NUMEROUS PATCHES OF
SCATTERED AND OCCASIONALLY BROKEN LOW CLOUDS INTO THE ISLANDS.
HOWEVER...A LARGE CLUSTER OF BROKEN TO OVERCAST LOW CLOUDS NORTH OF
THE REMNANT OF EIGHT-E WAS PILING UP AGAINST THE WINDWARD SIDE OF
THE BIG ISLAND.  THE LOW CLOUDS NEAR THE STATE WERE QUITE SHOWERY.
TOPS WERE 9000 TO 10000 FEET.  THE CLOUDS WERE MOVING WEST-SOUTHWEST
AT 20 TO 25 MILES AN HOUR.

WATER VAPOR IMAGERY SHOWED AN UPPER LOW CENTERED NEAR 33N171W.  THE
LOW WAS MOVING EAST NEAR 15 MILES AN HOUR.  THIS LOW WAS SPAWNING A
FEW ISOLATED THUNDERSTORMS ALONG A WEAK SURFACE TROUGH JUST TO ITS
SOUTHEAST.  THE THUNDERSTORMS WERE FORMING ALONG A LINE FROM 30N
166W TO 26N 172W.  AND A HANDFUL MORE WERE LOCATED BETWEEN 24N 177W
AND 22N 180E.  THE SURFACE TROUGH WAS MOVING WEST AND WEAKENING.
STORM TOPS WERE AS HIGH AS 43000 FEET.

$$




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