Fox News Weather Center

Weekly Wrap-Up: Volcanoes Threaten Portions of Hawaii, Iceland

Lava flowing from Kilauea volcano continues to threaten residents of the Puna district on the Big Island of Hawaii, prompting Mayor Billy Kenoi declared a state of emergency Thursday.

"We are taking this step to ensure our residents have time to prepare their families, their pets and their livestock for a safe and orderly evacuation from Ka‘ohe in the event the flow continues to advance," Mayor Kenoi said in an online press release.

"Only residents will be allowed on the subdivision roads starting today, and we ask that non-residents stay away from the area," Hawaii County Civil Defense Administrator Darryl Oliveira said, adding there were no evacuation orders issued yet.

"The lava cannot be seen from the subdivision, and there is no reason for non-residents to be in the Ka‘ohe subdivision at this time. This is a difficult and stressful time for Ka‘ohe residents, and we ask that everyone show respect and understanding for our Ka‘ohe neighbors."

Another volcano, the Barbarbunga volcano in Iceland, continues to seethe after erupting on Aug. 31.

Earthquakes have continued across the area and scientists continue to inspect the chance for ash from future eruptions.

If ash were to begin emerging from these volcanic eruptions, ash and dangerous air conditions could turn towards Scotland.

Although scientists are not anticipating a sudden uptick in ash from this latest eruption, a move nearer to the Dyngjujokull glacier and under an ice cap could spawn an explosion that would be more likely to produce an ash cloud.

Such an eruption would disrupt air travel in the area as well as elevated air quality concerns.

Earlier in the week, two tropical storm systems helped ease the Southwest drought by bringing rainfall to portions of the region.

In the Atlantic, Tropical Storm Dolly made landfall just south of Tampico, Mexico Tuesday night and continued as a tropical rainstorm over northeastern Mexico through the middle of the week.

Rainfall has topped 200 mm (8 inches) in Presa el Moralillo, Veracruz.

Dolly's heavy rainfall triggered devastating flooding and mudslides in Mexico after the storm made landfall.

Hundreds of schools were closed on Wednesday due to the impacts of the storm across the Mexican states of Veracruz and Tamaulipas.

Rainfall associated with Dolly pushed northward into far southern Texas on Wednesday. Heavy rain totaled more than 25 millimeters (1 inch) in McAllen in less than 4 hours.

In the eastern Pacific, Norbert strengthened from a tropical storm into a Category 1 hurricane Wednesday evening. The storm developed just off the coast of southwest Mexico on Tuesday and will impact Mexico, mainly northwestern Mexico, into the weekend.

Norbert continues to churn, threatening the shorelines of Southern California with high surf through the weekend.

Some minor coastal flooding is possible from San Diego up to Point Conception, and dangerous rip currents are likely, especially over the weekend.

Conditions will improve early next week, though rip currents may pose a risk through Monday.

Other Staff Writers contributed to this article.