Alert archive / Massachusetts / Rip Current Statements in 2011

Rip Current Statement 3, NWS Boston/Norton, MA

September 2, 2011Washington County, Rhode Island; Barnstable County, Dukes County, Nantucket County, Massachusetts

NWS Boston/Norton, MA issued this rip current statement at Sep 2, 2011, 4:31 AM EDT for Washington County, Rhode Island; Barnstable County, Dukes County, Nantucket County, Massachusetts. It took effect at Sep 2, 2011, 10:00 AM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Sep 2, 2011, 4:31 AM EDT (08:31 UTC)
In effect from
Sep 2, 2011, 10:00 AM EDT
Expired
Sep 2, 2011, 7:00 PM EDT
In force
9 hr
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, Dukes County, MA, Nantucket County, MA, Washington County, RI

The radar

The Boston radar (KBOX), 70 km from the middle of the area, began a volume at 08:36 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 00:00Z, 8.5 hours before the alert went out and 63 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 00:00Z on 2011-09-02Temperature 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 00:00Z on 2011-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 square meters per square second.193958Sfc1 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
1258 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
14 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.

303 
WHUS41 KBOX 020831
CFWBOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
431 AM EDT FRI SEP 2 2011

...A HIGH RISK OF STRONG RIP CURRENTS EXISTS THROUGH FRIDAY...

.AN EARLY SEASON STORM WELL EAST OF THE THE CAROLINAS AND VIRGINIA
IS GENERATING A STRONG SWELL WHICH IS EXPECTED TO EFFECT THE
EASTERN AND SOUTHERN BEACHES OF CAPE COD...NANTUCKET...MARTHAS
VINEYARD AND BLOCK ISLAND THROUGH THE DAY FRIDAY. THIS SWELL WILL
GENERATE STRONG RIP CURRENTS AT THESE LOCATIONS.

MAZ022>024-RIZ008-021645-
/O.NEW.KBOX.RP.S.0003.110902T1400Z-110902T2300Z/
BARNSTABLE MA-DUKES MA-NANTUCKET MA-BLOCK ISLAND RI-
431 AM EDT FRI SEP 2 2011

...RIP CURRENT RISK IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH
THIS EVENING...

* TIMING...DURING PEAK BEACH HOURS TODAY.

* RIP CURRENT RISK...HIGH.

* SURF HEIGHT...RANGING FROM 2 TO 6 FEET WITH THE HIGHEST SEAS
  EXPECTED ALONG EASTERN FACING BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING AWAY FROM
SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS. RIP CURRENTS CAN BECOME LIFE
THREATENING TO ANYONE WHO ENTERS THE SURF.

PLEASE VISIT THE FOLLOWING WEBSITE (USE LOWERCASE LETTERS) TO
SHARE YOUR THOUGHTS ON THE NEW RIP CURRENT HAZARD

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM

&&

$$

DOODY
2 follow-up statements
114 
WHUS41 KBOX 021355 AAA
CFWBOX

COASTAL HAZARD MESSAGE...UPDATED
NATIONAL WEATHER SERVICE TAUNTON MA
955 AM EDT FRI SEP 2 2011

...A HIGH RISK OF STRONG RIP CURRENTS EXISTS THROUGH FRIDAY...

.AN EARLY SEASON STORM WELL EAST OF THE THE CAROLINAS AND
VIRGINIA IS GENERATING A STRONG SWELL WHICH IS EXPECTED TO EFFECT
THE SOUTH AND EAST FACING OCEAN BEACHES OF CAPE COD AND
NANTUCKET THROUGH THE DAY FRIDAY. THESE LARGE SWELLS WILL GENERATE
STRONG RIP CURRENTS AND ROUGH SURF AT THESE LOCATIONS. THE RIP
CURRENT RISK FOR BLOCK ISLAND AND MARTHAS VINEYARD HAS BEEN
LOWERED AS SWELLS ACROSS THIS AREA WILL NOT BE AS LARGE.
NEVERTHELESS HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL.
PAY ATTENTION TO FLAGS AND POSTED SIGNS.

MAZ023-RIZ008-021500-
/O.CAN.KBOX.RP.S.0003.110902T1400Z-110902T2300Z/
DUKES MA-BLOCK ISLAND RI-
955 AM EDT FRI SEP 2 2011

...RIP CURRENT RISK IS CANCELLED...

$$

MAZ022-024-022200-
/O.CON.KBOX.RP.S.0003.110902T1400Z-110902T2300Z/
BARNSTABLE MA-NANTUCKET MA-
955 AM EDT FRI SEP 2 2011

...RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...

* TIMING...DURING PEAK BEACH HOURS TODAY.

* RIP CURRENT RISK...HIGH.

* SURF HEIGHT...RANGING FROM 2 TO 6 FEET WITH THE HIGHEST WAVES
  EXPECTED ALONG EAST FACING OCEAN BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING AWAY FROM
SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS. RIP CURRENTS CAN BECOME LIFE
THREATENING TO ANYONE WHO ENTERS THE SURF.

PLEASE VISIT THE FOLLOWING WEBSITE (USE LOWERCASE LETTERS) TO
SHARE YOUR THOUGHTS ON THE NEW RIP CURRENT HAZARD

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=RCVTECCHM

&&

$$

NOCERA
995 
WHUS41 KBOX 022316
CFWBOX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TAUNTON MA
716 PM EDT FRI SEP 2 2011


MAZ022-024-030030-
/O.EXP.KBOX.RP.S.0003.000000T0000Z-110902T2300Z/
BARNSTABLE MA-NANTUCKET MA-
716 PM EDT FRI SEP 2 2011

...RIP CURRENT RISK HAS EXPIRED...


$$

DUNTEN

Nearby

Rip Current Statements in Massachusetts, 2011Rip Current Statements in Rhode Island, 2011Every rip current statement in 2011

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.