Prognostic Meteorological Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2
000
FXHW01 KWNH 031221
PMDHI

HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
821 AM EDT FRI JUL 03 2015

VALID 00Z SAT JUL 04 2015 - 00Z SAT JUL 11 2015


THE MODELS SHOW THAT THE TROUGH JUST WEST OF HAWAI`I WILL
GRADUALLY SHEAR APART THIS WEEKEND AS THE SUBTROPICAL RIDGE BUILDS
ACROSS THE REGION. THE RIDGE CONDITIONS APPEAR TO BE SHORT-LIVED,
AS A COMPLEX TROPICAL WAVE BEGINS TO AFFECT THE STATE BY THE
MIDDLE OF NEXT WEEK. THE MOST RECENT GFS AND ECMWF ARE RATHER
DIFFERENT WITH THE DETAILS OF THIS DISTURBANCE, WITH BOTH MODELS
SUGGESTING A WEAKER WAVE CROSSING HAWAI`I PROPER, AS MORE
DEVELOPED EDDIES--PERHAPS EVEN TROPICAL CYCLONES--TRACK WESTWARD
BETWEEN 12N AND 14N. FIVE-DAY QPF THROUGH 00Z/09 JULY IS GENERALLY
UNDER A TENTH-OF-AN-INCH ACROSS THE ISLANDS, WITH SEVERAL INCHES
NEAR MAUNA LOA. MORE WIDESPREAD, HEAVY RAINFALL IS POSSIBLE WITH
THE TROPICAL SYSTEM NEXT THURSDAY THROUGH SATURDAY.


CISCO

$$




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