Last Updated on Monday, 28 July 2014 08:33
Winds Statewide in a glance ...go HERE (this link is also the 4th drop down under weather)
Jul 28, 2014 4:00 AM HST
High pressure far northeast of the state will maintain moderate trade winds across the islands. Showers carried by the trades will affect mainly windward and mauka areas. Winds will strengthen somewhat in the next couple of days.
Rather fair weather continues across the state early this morning, with only a few passing showers affecting windward and mountain areas at times. The usual slight increase in cloud coverage overnight did not really materialize, and this is in lieu of the somewhat typical early morning Lihue and Hilo sounding profiles, in term of PW values. The Lihue sounding revealed a slightly less unstable air mass while the Hilo sounding trended the other way. Latest satellite imagery revealed areas of low clouds just east of the islands early this morning, with high clouds streaming from the south covering the Big Island at times. The incoming low clouds may bring a little more showers to the area later this morning, mainly to windward and mountain areas. An upper level trough will remain near the islands, and will probably keep atmospheric conditions a little unstable. Still expect low level moisture to be limited in the island vicinity today as indicated by forecast models. This will lead to less showers, in terms of areal coverage.
A surface high will remain nearly stationary far northeast of the state through much of this week and will provide trade winds to the state. While little changes are expected with this high, the islands will see a slight increase in winds at times as the pressure gradient tightens somewhat across the area due to the low pressure far south of the area. Forecast models indicate a drier air mass will persist in the island vicinity through the next couple of days. Therefore, typical summer trade wind weather will prevail across the area through the middle of the week, with passing showers focused mainly across windward and mauka areas. Winds may be locally breezy at times.
Latest model solutions are closer in term of the pending possible surge of tropical moisture from the southeast weather scenario. Looks like the bulk of the moisture may reach the Big Island late Thursday into Friday, then spread to the rest of the island chain through the weekend. The islands will experience another bout of muggy conditions, with the potential for heavy rain.
Winds will be near small craft advisory levels for the typically windier coastal waters around Maui and the Big Island at least through the middle of the week. Therefore, a small craft advisory remains in effect for those areas at least through Wednesday.
A series of small southerly swells may bring minor bumps on south facing shores, with a slight increase on Thursday night. Short period trade wind swell will continue across east facing shores, possibly increasing a bit in the coming days as trades strengthen. No other significant swells are expected through the next several days.