Alert archive / Rhode Island / Coastal Flood Statements in 2012

Coastal Flood Statement 1, NWS Boston/Norton, MA

May 8, 2012Barnstable County, Bristol County, Plymouth County, Massachusetts; 5 counties in Rhode Island

NWS Boston/Norton, MA issued this coastal flood statement at May 8, 2012, 4:41 PM EDT for Barnstable County, Bristol County, Plymouth County, Massachusetts; 5 counties in Rhode Island. It took effect at May 8, 2012, 9:00 PM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
May 8, 2012, 4:41 PM EDT (20:41 UTC)
In effect from
May 8, 2012, 9:00 PM EDT
Expired
May 9, 2012, 1:00 AM EDT
In force
4 hr
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, Bristol County, MA, Plymouth County, MA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 29 km from the middle of the area, began a volume at 20:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Chatham, MA (KCHH), launched 12:00Z, 8.7 hours before the alert went out and 101 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Chatham, MA at 12:00Z on 2012-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 12:00Z on 2012-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2045 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

492 
WHUS41 KBOX 082041
CFWBOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
441 PM EDT TUE MAY 8 2012

...SPLASHOVER POSSIBLE DURING THIS EVENING/S HIGH TIDE...


MAZ020>022-RIZ002-004>007-090500-
/O.NEW.KBOX.CF.S.0001.120509T0100Z-120509T0500Z/
SOUTHERN BRISTOL MA-SOUTHERN PLYMOUTH MA-BARNSTABLE MA-
SOUTHEAST PROVIDENCE RI-EASTERN KENT RI-BRISTOL RI-WASHINGTON RI-
NEWPORT RI-
441 PM EDT TUE MAY 8 2012

...SPLASHOVER POSSIBLE DURING THIS EVENING/S HIGH TIDE...

* LOCATION...SOUTH COAST OF MASSACHUSETTS AND RHODE ISLAND
  INCLUDING THE COMMUNITIES OF NARRAGANSETT BAY AND BUZZARDS BAY.

* COASTAL FLOODING...SPLASHOVER POSSIBLE ON THE MOST VULNERABLE
  SHORE ROADS. 

* TIMING...9 PM TUESDAY TO 1 AM WEDNESDAY

* IMPACTS...MINOR COASTAL FLOODING.

&&

BUZZARDS BAY - WOODS HOLE

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      3.7    08/11 PM     3.1      0.6      1-2       NONE       1-2 
      2.4    09/11 AM     1.8      0.6       2        NONE        2  
      3.0    10/12 AM     2.6      0.4       1        NONE        1  
      2.0    10/12 PM     1.8      0.2       1        NONE        1  
      2.1    11/01 AM     2.3     -0.2       1        NONE        1  
      1.4    11/01 PM     1.7     -0.3       1        NONE        1 
:

ONSET

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      6.5    09/12 AM     5.4      1.1       1        NONE        1  
      5.1    09/12 PM     4.0      1.1       2        NONE        2  
      5.3    10/01 AM     4.8      0.5       1        NONE        1  
      4.2    10/01 PM     3.9      0.3       1        NONE        1  
      4.2    11/02 AM     4.4     -0.2       1        NONE        1  
      3.4    11/02 PM     3.7     -0.3       1        NONE        1 
:

MATTAPOISETT

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      5.5    08/11 PM     4.5      1.0      1-2       NONE        2  
      4.3    09/11 AM     3.3      1.0       2        NONE       2-3 
      4.7    10/12 AM     4.0      0.7       1        NONE       1-2 
      3.7    10/12 PM     3.2      0.5       1        NONE        1  
      3.3    11/01 AM     3.6     -0.3       1        NONE        1  
      2.8    11/01 PM     3.1     -0.3       1        NONE        1 
:

WESTPORT

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      5.6    08/11 PM     4.8      0.8      4-5       NONE       4-5 
      4.6    09/11 AM     3.9      0.7      5-6       NONE       6-7 
      4.8    10/12 AM     4.3      0.5       4        NONE        5  
      4.0    10/12 PM     3.7      0.3       4        NONE       5-6 
      3.6    11/12 AM     3.9     -0.3       4        NONE       5-6 
      3.3    11/01 PM     3.6     -0.3       3        NONE        4 
:

NEWPORT HARBOR

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      6.1    08/11 PM     5.2      0.9       1        NONE        1  
      2.5    09/04 AM     2.1      0.4       1        NONE        1  
      2.4    09/05 PM     2.2      0.2       1        NONE        1  
      2.2    10/05 AM     2.1      0.1       1        NONE        1  
      4.0    11/01 AM     4.3     -0.3       1        NONE        1  
      3.6    11/01 PM     3.9     -0.3       1        NONE        1 
:

NEWPORT SOUTH COAST BEACHES

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      5.3    08/11 PM     4.6      0.7      4-5       NONE       4-5 
      4.3    09/11 AM     3.7      0.6      5-6       NONE       6-7 
      4.5    10/12 AM     4.1      0.4      4-5       NONE        5  
      3.8    10/12 PM     3.6      0.2      4-5       NONE        5  
      3.5    11/01 AM     3.8     -0.3      4-5       NONE        5  
      3.2    11/01 PM     3.5     -0.3      3-4       NONE       3-4 
:

NARRAGANSETT BAY - CONIMICUT POINT

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      6.8    08/11 PM     5.8      1.0       1        NONE        1  
      5.3    09/11 AM     4.7      0.6       1        NONE        1  
      5.9    10/12 AM     5.3      0.6       1        NONE        1  
      4.8    10/12 PM     4.6      0.2       1        NONE        1  
      4.6    11/01 AM     4.9     -0.3       1        NONE        1  
      4.1    11/01 PM     4.5     -0.4       1        NONE        1 
:

NARRAGANSETT BAY - FOX POINT

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      6.9    08/11 PM     6.0      0.9       1        NONE        1  
      5.5    09/11 AM     4.9      0.6       1        NONE        1  
      5.9    10/12 AM     5.4      0.5       1        NONE        1  
      5.0    10/12 PM     4.7      0.3       1        NONE        1  
      4.7    11/01 AM     5.0     -0.3       1        NONE        1  
      4.2    11/01 PM     4.6     -0.4       1        NONE        1 
:

POINT JUDITH

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      5.0    08/11 PM     4.3      0.7      4-5       NONE       4-5 
      4.0    09/11 AM     3.5      0.5      5-6       NONE       5-6 
      4.2    09/11 PM     3.8      0.4       5        NONE        5  
      3.6    10/12 PM     3.4      0.2      4-5       NONE       4-5 
      3.2    11/12 AM     3.5     -0.3       5        NONE        5  
      2.9    11/01 PM     3.2     -0.3       3        NONE        3 
:

WESTERLY

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      4.4    08/11 PM     3.7      0.7      3-4       NONE        4  
      3.5    09/12 PM     3.0      0.5      4-5       NONE       4-5 
      3.7    10/12 AM     3.3      0.4       3        NONE        4  
      3.0    10/01 PM     2.8      0.2       3        NONE        4  
      3.0    11/01 AM     3.0      0.0       3        NONE        4  
      2.7    11/02 PM     2.7      0.0      1-2       NONE        2 
:

BLOCK ISLAND - OLD HARBOR

    TOTAL                ASTRO                                   RISK
     TIDE    DAY/TIME     TIDE    SURGE    WAVES      FLOOD     WAVES
     /FT/                 /FT/     /FT/     /FT/    CATEGORY     /FT/
   -------  ----------  -------  -------  -------  ----------  -------
      4.5    08/10 PM     4.0      0.5       5        NONE        5  
      3.5    09/11 AM     3.1      0.4      6-7       NONE       6-7 
      3.9    10/12 AM     3.6      0.3       5        NONE        5  
      3.2    10/12 PM     3.0      0.2       5        NONE        5  
      3.0    11/12 AM     3.3     -0.3      5-6       NONE       5-6 
      2.6    11/01 PM     2.9     -0.3      3-4       NONE       3-4 

$$

Nearby

Coastal Flood Statements in Rhode Island, 2012Coastal Flood Statements in Massachusetts, 2012Every coastal flood statement in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.