Tropical Storm Lala will continue to affect the state today as it moves westward to the south of Oahu and Kauai. Areas of damaging winds will persist, mainly across the western end of the state, and the threat of heavy flooding rainfall will continue on all islands. As Lala moves west of Kauai tonight and Monday, strong easterly winds will slowly diminish, and the threat of flooding will decrease. A drier moderate to locally breezy trade wind flow will prevail Tuesday through the end of the work week.
Tropical Storm Lala continues moving WNW and was well southwest of Oahu. Gradually improving conditions are expected late this morning or afternoon through tonight, slowest for western islands, especially PHLI. There is a 10-15 percent chance of a brief fast moving thunderstorm focused across outer convective bands of Lala, mainly northwest of the Big Island.
AIRMET SIERRA is in effect for IFR for Oahu through Maui. This will change as Lala continues to move up the state.
AIRMET TANGO is in effect for mod to isol svr turb lee of terrain. TANGO is also in effect for SFC winds greater than 30 kts for Oahu to Maui and may need augmented to account for the movement of Lala.
At 11 AM HST this morning, Tropical Storm Lala was moving west- northwest at 13 kts with its low level center approximately located 140 nm west-southwest of Honolulu. A Tropical Storm Warning is in effect for all the Hawaiian coastal waters around Maui through Kauai and a Small Craft Advisory is in effect for windward and leeward coastal waters around the Big Island. Marine conditions are expected to gradually improve tonight through tomorrow.
Large east-facing shore surf peaked last night on Big Island and Maui as former Hurricane Lala approached and passed just south of Big Island. Surf for the east-facing shores of Oahu and Kauai is peaking at advisory levels this morning. High Surf Advisories are now in effect for all east-facing shores through 2 PM HST this afternoon, but might need to be extended for at least Kauai. Overall, surf will gradually fall below advisory levels along all east facing shores as Lala progresses further northwest.
North-facing surf will remain rough today as a result of this short period, Lala wind wave-driven chop in tandem with an east swell wrap. South-facing shore surf will stay below advisory thresholds but remain elevated from a combination of lingering medium period south swell and Lala short period east swell. South shores will likely experience a minor boost in surf from trailing short period east swell energy from Lala as it travels into the far west offshore waters Monday morning. Longer period south swell energy generated from gales just east of New Zealand will begin arriving late this week.
Flood Watch through late tonight for Central Oahu-East Honolulu- Ewa Plain-Honolulu Metro-Kauai East-Kauai Mountains-Kauai North- Kauai South-Kauai Southwest-Koolau Leeward-Koolau Windward- Niihau-Oahu North Shore-Olomana-Waianae Coast-Waianae Mountains.
High Surf Advisory until 2 PM HST this afternoon for Big Island East-Big Island North-Big Island Southeast-Kauai East-Kauai South-Kipahulu-Koolau Windward-Maui Windward West-Molokai Southeast-Molokai Windward-Niihau-Olomana-South Haleakala- Windward Haleakala.
Tropical Storm Warning for Central Oahu-East Honolulu-Ewa Plain- Haleakala Summit-Honolulu Metro-Kahoolawe-Kauai East-Kauai Mountains-Kauai North-Kauai South-Kauai Southwest-Kipahulu- Koolau Leeward-Koolau Windward-Lanai Leeward-Lanai Mauka-Lanai South-Lanai Windward-Maui Central Valley North-Maui Central Valley South-Maui Leeward West-Maui Windward West-Molokai Leeward South-Molokai North-Molokai Southeast-Molokai West- Molokai Windward-Niihau-Oahu North Shore-Olomana-South Haleakala- South Maui/Upcountry-Waianae Coast-Waianae Mountains-Windward Haleakala.
Flood Watch until 6 PM HST this evening for Big Island East-Big Island Interior-Big Island North-Big Island South-Big Island Southeast-Big Island Summits-Haleakala Summit-Kahoolawe-Kipahulu- Kohala-Kona-Lanai Leeward-Lanai Mauka-Lanai South-Lanai Windward- Maui Central Valley North-Maui Central Valley South-Maui Leeward West-Maui Windward West-Molokai Leeward South-Molokai North- Molokai Southeast-Molokai West-Molokai Windward-South Haleakala- South Maui/Upcountry-Windward Haleakala.
Tropical Storm Warning for Alenuihaha Channel-Kaiwi Channel- Kauai Channel-Kauai Leeward Waters-Kauai Northwest Waters-Kauai Windward Waters-Maalaea Bay-Maui County Leeward Waters-Maui County Windward Waters-Oahu Leeward Waters-Oahu Windward Waters- Pailolo Channel.
Small Craft Advisory until 6 PM HST this evening for Big Island Leeward Waters-Big Island Windward Waters.
