First Alert Weather Day Announced for Hawaii Island Amid Severe Weather Disturbance

A First Alert Weather Day has been declared for Hawaii Island as an upper-level low approaches, bringing thunderstorms and severe weather. Conditions are expected to stabilize over the weekend, though some weather disturbances may persist.

HONOLULU (HawaiiNewsNow) – The HNN First Alert Weather Team has designated Friday as a First Alert Weather Day for Hawaii Island and the eastern coastal waters extending from Maui County to Hawaii Island, due to an upper-level low affecting the region, isolated from the jet stream. The day commenced with numerous thunderstorms over Maui and near Hawaii Island, featuring severe conditions such as hail and strong straight-line winds that exceeded 50 mph during nocturnal storms in the early hours.

The HNN First Alert Weather Team continues to closely monitor the potential instability persisting over the eastern regions of the state, which is expected to extend into Saturday as the upper-level low remains positioned off Hawaii Island. Heavy rainfall is anticipated to gradually decrease during the day for Oahu and parts of Maui County. As the weekend approaches, conditions may stabilize, but light rain and showery trade winds could persist, particularly affecting Hawaii Island and eastern Maui overnight and during the early mornings. There is also a chance of pop-up storms and further thunderstorms developing in the eastern coastal waters, which could impact parts of Hawaii Island, especially in mauka neighborhoods.

Additionally, following daytime heating on Friday, the Kona slopes may experience another round of instability and convection, resulting in heavier showers and possible thunderstorms in the afternoon. The trough axis of this upper-level low is forecasted to elongate as it shifts to a southwest-northeast orientation over or just east of the Big Island, which may lead to enhanced trade wind showers continuing into the weekend, particularly upstream of the Big Island and east Maui. Overall, fair weather is expected to prevail over Kauai and Oahu.

Remarkably, the recent weather has brought snow to the summit of Haleakala, where passing showers and thunderstorms have resulted in a dusting of snow accompanied by gusty winds. Low visibility and icy roads are a concern at elevations around 6,000 feet, with Hawaii Island summits likely to see additional snow and vigorous winds as the upper-level low continues to draw cooler air into the region.

Given the rapid changes in the weather conditions, residents and visitors are encouraged to utilize the First Alert weather application and interactive radar to stay informed about developing rain cells and pop-up storms in real-time.

The article provides an update on severe weather conditions impacting Hawaii Island and surrounding areas due to an upper-level low cut off from the jet stream. The weather system is documented to cause thunderstorms, hail, and strong winds across the region, with a particular focus on the instability expected to linger. It also highlights the potential for snow at higher elevations and the expected return to fair weather conditions as the disturbance moves away, particularly affecting different islands differently.

In conclusion, the HNN First Alert Weather Team has issued a First Alert Weather Day for Hawaii Island in anticipation of a significant weather disturbance characterized by thunderstorms, hail, and heavy rainfall. While conditions are expected to improve over the weekend, sustained vigilance is necessary due to the likelihood of intermittent showers and potential thunderstorms. Residents are advised to remain informed through available weather resources.

Original Source: www.hawaiinewsnow.com