Hurricane Watch

A Hurricane Watch means hurricane-force winds are possible somewhere within this area within the next 48 hours

* LOCATIONS AFFECTED - Hilo - Pahoa - Volcano

* WIND - LATEST LOCAL FORECAST: Below tropical storm force wind - Peak Wind Forecast: 25-35 mph with gusts to 45 mph

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39 to 57 mph - PLAN: Plan for hazardous wind of equivalent tropical storm force. - PREPARE: Efforts to protect property should now be underway. Prepare for limited wind damage. - ACT: Act now to complete preparations before the wind becomes hazardous.

- POTENTIAL IMPACTS: Limited - Damage to porches, awnings, carports, sheds, and unanchored mobile homes. Unsecured lightweight objects blown about. - Many large tree limbs broken off. A few trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted. Some fences and roadway signs blown over. - A few roads impassable from debris, particularly within urban or heavily wooded places. Hazardous driving conditions on bridges and other elevated roadways. - Scattered power and communications outages.

* STORM SURGE - No storm surge inundation forecast

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Little to no storm surge flooding - PLAN: There is little to no threat of storm surge flooding. Rough surf, coastal erosion, and life-threatening rip currents are possible. - PREPARE: Little to no preparations for storm surge flooding are needed. - ACT: Follow the instructions of local officials. Monitor forecasts.

- POTENTIAL IMPACTS: Little to None - Little to no potential impacts from storm surge flooding.

* FLOODING RAIN - LATEST LOCAL FORECAST: - Peak Rainfall Amounts: Additional 10-15 inches, with locally higher amounts

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for extreme flooding rain - PLAN: Emergency plans should include the potential for extreme flooding from heavy rain. Evacuations and rescues are likely. - PREPARE: Urgently consider protective actions from extreme and widespread rainfall flooding. - ACT: Heed any flood watches and warnings. Failure to take action will likely result in serious injury or loss of life.

- POTENTIAL IMPACTS: Devastating to Catastrophic - Extreme rainfall flooding may prompt numerous evacuations and rescues. - Rivers and tributaries may overwhelmingly overflow their banks in many places with deep moving water. Small streams, creeks, canals, arroyos, and ditches may become raging rivers. In mountain areas, deadly runoff may rage down valleys while increasing susceptibility to rockslides and mudslides. Flood control systems and barriers may become stressed. - Flood waters can enter numerous structures within multiple communities, some structures becoming uninhabitable or washed away. Numerous places where flood waters may cover escape routes. Streets and parking lots become rivers of raging water with underpasses submerged. Driving conditions become very dangerous. Numerous road and bridge closures with some weakened or washed out.

* TORNADO - LATEST LOCAL FORECAST: - Situation is somewhat favorable for tornadoes

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for a few tornadoes - PLAN: Emergency plans should include the potential for a few tornadoes. - PREPARE: If your shelter is particularly vulnerable to tornadoes, prepare to relocate to safe shelter before hazardous weather arrives. - ACT: If a tornado warning is issued, be ready to shelter quickly.

- POTENTIAL IMPACTS: Limited - The occurrence of isolated tornadoes can hinder the execution of emergency plans during tropical events. - A few places may experience tornado damage, along with power and communications disruptions. - Locations could realize roofs peeled off buildings, chimneys toppled, mobile homes pushed off foundations or overturned, large tree tops and branches snapped off, shallow-rooted trees knocked over, moving vehicles blown off roads, and small boats pulled from moorings.

* FOR MORE INFORMATION: - https://www.weather.gov/hfo