Menu of Text Products for the Hawaiian Islands and the Tropical Pacific/Atlantic Oceans: Select a text product: Hawaiian Islands Synoptic Discussion and Guidance Hawaiian Islands Short Term Forecast Hawaiian Islands 7-day Zone Forecast Hydrologic Outlook Flash Flood Warning Flash Flood Watch Flash Flood Statement Tornado Warning Severe Weather Statement Severe Thunderstorm Warning Special Weather Statement Winter Storm Warnings/Watches/Advisories Urgent Weather Message Marine Weather Statement/High Surf Advisory/Warning Special Marine Warning Radar Message Special Messages Unknown Terminal Aerodome Foreasts (TAFS) Area Forecast for Hawaii and Adjacent Coastal Waters Upper-level Winds and Temperature Forecast for the 4 Major Hawaii AP AIRMETs for IFR Conditions, Turbulence, and Icing Thunderstorm SIGMETs Hawaiian Islands Satellite Interpetation Message Central/North Pacific Tropical Weather Outlook Central/North Pacific Tropical Weather Summary Central Pacific Tropical Cyclone Summary Tropical Cyclone SIGMETs Buoy Winds and Wave Forecast Oahu Surf Observation and Forecast/Coastal Forecast for Hawaiian Waters Offshore Forecast for Hawaiian Waters North Pacific High Seas Forecast Hawaiian Islands Automated Surface Observation System Hourly Weather Roundup Hawaiian Islands Wind Data Hawaiian Islands Rainfall Summary Hawaii Temperature and Precipitation Summary Daily Hawaii Cooperative Observations Honolulu AP Climate Summary Lihue AP Climate Summary Kahului AP Climate Summary Hilo AP Climate Summary East Pacific Tropical Cyclone Discussion East Pacific Tropical Weather Outlook Central Pacific Tropical Cyclone Discussion Central Pacific Tropical Weather Outlook Narrow the Menu List Select Time Limit: 12 hours | 24 hours | 48 hours | 72 hours | No time limit Select Product Type: All | Routine Bulletins/FCSTS | Warnings/Watches/Advisories | HAWN Weather | Tropical | Marine | Aviation | Daily Obs | Special Hawaiian Islands Satellite Interpetation Message 237 ATHW40 PHFO 181829 SIMHI HAWAIIAN ISLANDS SATELLITE INTERPRETATION MESSAGE NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI 1830 UTC SAT MAY 18 2013 BASED ON DATA THROUGH 1800 UTC MAY 18 2013 WATER VAPOR IMAGERY SHOWS AN UPPER LEVEL LOW NEAR 23N154W...OR ABOUT 300 MILES EAST-NORTHEAST OF HONOLULU. THIS LOW IS MOVING TO THE EAST AT 10 MPH. A SHARP UPPER LEVEL TROUGH IS LOCATED FARTHER NORTHWEST...NEAR 29N159W...OR LESS THAN 600 MILES NORTH-NORTHWEST OF HONOLULU. THIS TROUGH IS MOVING TO THE SOUTHEAST AT 25 MPH. ISOLATED CUMULONIMBUS CLOUDS ARE LOCATED JUST EAST OF THE TROUGH...IN THE AREA NORTH OF 29N BETWEEN 157W AND 159W. CLOUD TOPS EXTEND UP TO 38000 FT. IN ADDITION...BROKEN CIRRUS AND CIRROCUMULUS CLOUDS ARE ASSOCIATED WITH THE LOW AND THE TROUGH...AND ARE LOCATED GENERALLY NORTH OF 23N BETWEEN 143W AND 158W. THESE HIGH CLOUDS ARE MOVING TO THE NORTH AND NORTHEAST AT 20 TO 30 MPH. AREAS OF LOW CLOUDS ARE LOCATED ELSEWHERE ACROSS THE CENTRAL PACIFIC. THESE CLOUDS ARE GREATEST IN COVERAGE EAST OF 145W. BETWEEN 17N AND 26N...CLOUDS ARE PRIMARILY OVERCAST STRATOCUMULUS AND STABLE CLOSED CELL CUMULUS ELEMENTS. ELSEWHERE...CLOUDS ARE MORE BROKEN IN COVERAGE AND TRANSITION TO MORE SHOWERY OPEN CELL CUMULUS ELEMENTS. ISOLATED TOWERING CUMULUS WITH TOPS TO 20000 FT ARE EMBEDDED WITHIN THE SHOWERY CUMULUS ELEMENTS...ESPECIALLY OFFSHORE IN THE LEE OF THE BIG ISLAND. BRIEF CUMULONIMBUS CLOUDS WITH TOPS TO 30000 FT HAVE ALSO FORMED IN THIS AREA. GOING FROM ISLAND TO ISLAND...SCATTERED TO BROKEN LOW CLOUDS ARE LOCATED OVER INTERIOR AND EASTERN SECTIONS OF KAUAI. BROKEN TO OVERCAST LOW CLOUDS COVER THE INTERIOR OF OAHU...AND ARE GREATEST IN COVERAGE ACROSS THE WINDWARD SLOPES OF THE KOOLAU RANGE. AN OVERCAST AREA OF LOW CLOUDS ALSO EXTENDS 50 MILES OFFSHORE TO THE SOUTH AND SOUTHEAST OF OAHU...COVERING THE KAIWI CHANNEL AND WESTERN MOLOKAI WEST OF KAUNAKAKAI. BROKEN LOW CLOUDS ALSO COVER EASTERN MOLOKAI EAST OF PUKOO. SCATTERED TO BROKEN LOW CLOUDS ARE LOCATED OVER THE INTERIOR OF THE WEST MAUI MOUNTAINS. BROKEN TO OVERCAST LOW CLOUDS COVER THE EASTERN SLOPES OF HALEAKALA FROM HUELO TO HANA TO KAUPO BELOW 6000 FT. AN AREA OF LOW CLOUDS ALSO EXTENDS OFFSHORE TO THE SOUTHEAST ACROSS THE ALENUIHAHA CHANNEL. ON THE BIG ISLAND...BROKEN TO OVERCAST LOW CLOUDS COVER SOUTH HILO...PUNA AND KAU DISTRICTS BELOW 9000 FT. THESE CLOUDS ARE PART OF A LARGER AREA OF CLOUDS THAT EXTENDS OVER 100 MILES OFFSHORE TO THE NORTHEAST AND EAST...AND 80 MILES OFFSHORE TO THE SOUTHEAST. BROKEN LOW CLOUDS COVER PORTIONS OF NORTH AND SOUTH KONA DISTRICTS FROM KAILUA-KONA SOUTHWARD. THESE CLOUDS EXTEND OVER 300 MILES OFFSHORE TO THE EAST SOUTHEAST OF THE KONA COAST. A 90 MPH UPPER LEVEL JET IS LOCATED SOUTHEAST OF THE STATE. BROKEN TO OVERCAST CIRROCUMULUS AND CIRROSTRATUS CLOUDS ARE LOCATED SOUTH OF 15N BETWEEN 150W AND 167W...AND WITHIN 300 MILES SOUTHEAST OF A LINE FROM 15N150W TO 23N142W. THESE HIGH CLOUDS ARE MOVING TO THE NORTHEAST AND EAST AT 70 MPH. $$ BRAVENDER Bulletins, Forecasts and Observations are courtesy of Honolulu National Weather Service Forecast Office This page is maintained voluntarily by the MKWC and the UHMET faculty, staff, and students. It was last modified on: Tue, Sep 21 2010 - 2314 UTC Send comments to: Ryan Lyman