This radar image from the National Weather Service shows a storm approaching Hawaii.

Gov. Josh Green issued an emergency proclamation Monday ahead of a significant storm system expected to bring heavy rain, flooding and strong winds to Hawaii later this week.

Maui County officials are urging residents to prepare as the developing kona low is forecast to bring periods of heavy rain and thunderstorms that could lead to flash flooding and other hazardous conditions.

The National Weather Service in Honolulu has issued a flood watch for Maui County from Wednesday morning through Saturday afternoon.

Possible impacts include flash flooding, rapid rises in streams and drainage systems, flooding of roads and low-lying areas, and landslides in areas with steep terrain. Officials say residents should prepare for possible road closures and property damage caused by runoff.

The Maui Emergency Management Agency said it is monitoring the storm system developing northwest of the state and is advising residents to stay informed and be ready to act if conditions worsen.

Motorists are warned not to drive through flooded roadways. According to the National Weather Service, as little as 1 foot of rushing water can carry away most vehicles, while 2 feet can sweep away larger vehicles such as SUVs, trucks and vans.

Residents are also encouraged to clear drains and gutters around their homes, charge essential devices and prepare for the possibility of prolonged power outages.

The National Weather Service in Honolulu has issued a flood watch for Maui County, starting on Wednesday and continuing into the weekend. Courtesy photo

Green’s emergency proclamation allows the state to take steps to protect public health and safety, coordinate resources and support county emergency response efforts as the storm develops.

“Our priority is keeping the people of Hawaii safe,” Green said. “By issuing this emergency proclamation now, we are ensuring that state and county agencies have the resources and flexibility needed to respond quickly to flooding, severe weather and any impacts this storm may bring.”

The National Weather Service expects the kona low to produce prolonged heavy rainfall that could lead to flash flooding across the state. The storm is expected to affect Kauai and Oahu first before expanding to the rest of the islands.

Forecasters say the system could also bring strong to severe thunderstorms and gusty southerly winds beginning midweek, with the potential for more damaging conditions later in the week.

More information on emergency preparedness is available at mauicounty.gov/MEMA and weather.gov/hfo.