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Tropical Update: Ana Brushes Hawaii; Gonzalo Now Post-Tropical

Stu Ostro
Published: October 19, 2014

- Tropical Storm Ana about 210 miles southwest of Honolulu and bringing heavy rainfall to Oahu

- Tropical Storm warning for Kauai as winds and heavy rainfall spread westward tonight

- Watching the Gulf of Mexico this week

TRUDY REMNANTS / POTENTIAL GULF OF MEXICO SYSTEM

Although the rainfall pattern from Trudy's remnants is more sporadic, there are a few scattered heavy downpours.

A few of them are in the southwest Gulf, the very beginnings of the upcoming system.

For public perception it's going to come down to whether NHC finds enough tropical characteristics to designate it as something other than non-tropical; regardless the question for the U.S. is how far north the system, and its effects, are able to go: barely reach Florida, affect much of South Florida, or make it farther north. 

Latest model runs predict that it's gonna be a slow process, not exiting the region until late in the week or the weekend.

ATLANTIC OCEAN

A non tropical area of low pressure over the far northeastern Atlantic west of the Canary Islands (Invest 92-L) could turn subtropical over the next few days but is no threat to the United States.

Invest 92-L is wrapping some shallow convection around close to the center, i.e. in the process of trying to take on characteristics of a subtropical cyclone.

​Meanwhile, Gonzalo has become post-tropical and is accelerating over the chilly waters of the North Atlantic.

(MORE: Gonzalo Recap)

CENTRAL PACIFIC: ANA

​Ana was downgraded to a tropical storm late Sunday afternoon Hawaiian time.

The main impact to Hawai'i continues to be the moderate to heavy rainfall. So far today officially the airport in Honolulu has picked up just over 2 inches of rain. Locally rainfall totals will be even higher, especially in areas of where winds move up mountain tops.

Rain continues to fall on the northwest Hawaiian islands. Some of the latest total amounts in Hawaii include 8.43 inches at Maona Lyon Arboretum on Oahu, and 11.67 inches at Keaumo on the Big Island. Given the radar-estimated rainfall of over 15 inches offshore, it's a good thing the core of Ana took a track away from Hawaii (along with the increased wind/ocean impacts it would have brought).

The heavy rain and wind threat will then spread to Kauai and Niihau Sunday night into Monday. A Tropical storm warning is in effect for these latter two islands, as some gusty winds in excess of 39 mph are possible as Ana passes by about 90 miles to their south and west.

Dangerous and damaging surf surf continues to be a threat for all of the islands.

The weather will slowly pull away from the state on Monday, with conditions improving by Tuesday.

(MORE: Ana Forecast)

REAL-TIME UPDATES

Our live wall below has the latest updates from our hurricane experts and from coastal National Weather Service offices. No need to refresh, the latest updates will appear at the top of the wall. Time stamps on each post are in Eastern U.S. time.

(MORE: Glossary of Tropical Terms | New NHC Storm Surge Maps)



 


MORE: Hurricanes From Space (NASA Satellite Images)

 

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