NOAA: Tropical Storm Watch Update 09/18/17 Morning

Potential for flooding rains, wind gusts to 60 mph

From the National Weather Service:

 

 

 

 

 

 

 

 

 

Jose Local Watch/Warning Statement/Advisory Number 52
National Weather Service TAUNTON MA  AL122017
451 AM EDT Mon Sep 18 2017

MAZ022-181700-
/O.CON.KBOX.TR.A.1012.000000T0000Z-000000T0000Z/
Barnstable MA-
451 AM EDT Mon Sep 18 2017

...TROPICAL STORM WATCH REMAINS IN EFFECT...

* LOCATIONS AFFECTED
    - Chatham
    - Falmouth
    - Provincetown

* WIND
    - LATEST LOCAL FORECAST: Below tropical storm force wind
        - Peak Wind Forecast: 20-30 mph with gusts to 60 mph

    - CURRENT THREAT TO LIFE AND PROPERTY: Moderate
        - The wind threat has remained nearly steady from the
          previous assessment.
        - Emergency planning should include a reasonable threat for
          strong tropical storm force wind of 58 to 73 mph.
        - To be safe, earnestly prepare for the potential of
          significant wind impacts. Efforts should now be underway to
          secure all properties.
        - Dangerous wind is possible. Failure to adequately shelter
          may result in injury.

    - POTENTIAL IMPACTS: Significant
        - Some damage to roofing and siding materials, along with
          damage to porches, awnings, carports, and sheds. A few
          buildings experiencing window, door, and garage door
          failures. Mobile homes damaged, especially if unanchored.
          Unsecured lightweight objects become dangerous projectiles.
        - Several large trees snapped or uprooted, but with greater
          numbers in places where trees are shallow rooted. Several
          fences and roadway signs blown over.
        - Some roads impassable from large debris, and more within
          urban or heavily wooded places. A few bridges, causeways,
          and access routes impassable.
        - Scattered power and communications outages, but more
          prevalent in areas with above ground lines.

* STORM SURGE
    - LATEST LOCAL FORECAST: Life-threatening storm surge possible
        - Peak Storm Surge Inundation: The potential for 2-4 feet
          above ground somewhere within surge prone areas
        - Window of concern: Begins early Tuesday afternoon

    - CURRENT THREAT TO LIFE AND PROPERTY: Moderate
        - The storm surge threat has remained nearly steady from the
          previous assessment.
        - Emergency plans should include a reasonable threat for
          dangerous storm surge flooding of greater than 3 feet above
          ground.
        - To be safe, earnestly prepare for the potential of
          significant storm surge flooding impacts. Evacuation
          efforts should now be brought to completion. Evacuations
          must be complete before driving conditions become unsafe.
        - Life-threatening inundation is possible. Failure to heed
          evacuation orders may result in serious injury or loss of
          life. Leave if evacuation orders are given for your area.
          Consider voluntary evacuation if recommended. Poor
          decisions may needlessly risk lives.

    - POTENTIAL IMPACTS: Significant
        - Areas of inundation with storm surge flooding accentuated
          by waves. Damage to several buildings, mainly near the
          coast.
        - Sections of near-shore escape routes and secondary roads
          become weakened or washed out, especially in usually
          vulnerable low spots.
        - Major beach erosion with heavy surf breaching dunes. Strong
          and numerous rip currents.
        - Moderate damage to marinas, docks, boardwalks, and piers.
          Several small craft broken away from moorings, especially
          in unprotected anchorages.

* FLOODING RAIN
    - LATEST LOCAL FORECAST:
        - Peak Rainfall Amounts: 4-8 inches, with locally higher
          amounts

    - CURRENT THREAT TO LIFE AND PROPERTY: Elevated
        - The flooding rain threat has remained nearly steady from
          the previous assessment.
        - Emergency planning should include a reasonable threat for
          minor flooding where peak rainfall totals are near amounts
          conducive for localized flash flooding and rapid inundation.
        - To be safe, prepare for the potential of limited flooding
          rain impacts.
        - Localized flooding is possible. If flood related watches
          and warnings are issued, heed recommended actions.

    - POTENTIAL IMPACTS: Limited
        - Localized rainfall flooding may prompt a few evacuations.
        - Rivers and tributaries may quickly rise with swifter
          currents. Small streams, creeks, canals, arroyos, and
          ditches may become swollen and overflow in spots.
        - Flood waters can enter a few structures, especially in
          usually vulnerable spots. A few places where rapid ponding
          of water occurs at underpasses, low-lying spots, and poor
          drainage areas. Several storm drains and retention ponds
          become near-full and begin to overflow. Some brief road and
          bridge closures.

* TORNADO
    - LATEST LOCAL FORECAST:
        - Situation is unfavorable for tornadoes

    - CURRENT THREAT TO LIFE AND PROPERTY: None
        - The tornado threat has remained nearly steady from the
          previous assessment.
        - Emergency planning need not include a threat for tornadoes.
          Showers and thunderstorms with strong gusty winds may still
          occur.
        - Little to no preparations needed to guard against tropical
          tornadoes.
        - Ensure readiness for the next tropical tornado event.

    - POTENTIAL IMPACTS: Little to None
        - Little to no potential impacts from tornadoes.

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