000
FXHW60 PHFO 110148
AFDHFO
Area Forecast Discussion
National Weather Service Honolulu HI
348 PM HST Wed Mar 10 2021
.SYNOPSIS...
A low west of Kauai will maintain the chance of heavy rain
statewide through Friday evening. The forecast beyond that is
highly uncertain.
&&
.DISCUSSION...
As of 3 PM satellite and radar loops show heavy showers over all
islands with scattered thunderstorms near Kauai and isolated
thunderstorms over Oahu and the Big Island. The satellite loops
show a surface low about 200 miles west of Kauai. Convergent
southerly flow east of the low is helping maintain the heavy showers
and thunderstorms over Kauai. Water vapor imagery shows a jet
stream aloft over the Big Island helping to enhance the showers in
that area. A trough aloft will maintain the threat of heavy rain
through at least Friday evening. A Flash Flood Watch (FFA) remains
in effect for all islands through 6 PM Friday. The trough aloft is
producing cold temperature aloft. Moisture occasionally pushing
up over the summits of Mauna Kea and Mauna Loa, will produce
periods of snow and ice. A Winter Weather Advisory is in effect
through Friday evening for the summits.
The GFS and ECMWF global models agree fairly will through Friday.
The models show big difference beyond that, so confidence is low
for the longer term.
&&
https://forecast.weather.gov/product.php?site=HFO&issuedby=HFO&product=AFD&format=CI&version=1&glossary=1
FXHW60 PHFO 110148
AFDHFO
Area Forecast Discussion
National Weather Service Honolulu HI
348 PM HST Wed Mar 10 2021
.SYNOPSIS...
A low west of Kauai will maintain the chance of heavy rain
statewide through Friday evening. The forecast beyond that is
highly uncertain.
&&
.DISCUSSION...
As of 3 PM satellite and radar loops show heavy showers over all
islands with scattered thunderstorms near Kauai and isolated
thunderstorms over Oahu and the Big Island. The satellite loops
show a surface low about 200 miles west of Kauai. Convergent
southerly flow east of the low is helping maintain the heavy showers
and thunderstorms over Kauai. Water vapor imagery shows a jet
stream aloft over the Big Island helping to enhance the showers in
that area. A trough aloft will maintain the threat of heavy rain
through at least Friday evening. A Flash Flood Watch (FFA) remains
in effect for all islands through 6 PM Friday. The trough aloft is
producing cold temperature aloft. Moisture occasionally pushing
up over the summits of Mauna Kea and Mauna Loa, will produce
periods of snow and ice. A Winter Weather Advisory is in effect
through Friday evening for the summits.
The GFS and ECMWF global models agree fairly will through Friday.
The models show big difference beyond that, so confidence is low
for the longer term.
&&
https://forecast.weather.gov/product.php?site=HFO&issuedby=HFO&product=AFD&format=CI&version=1&glossary=1