Alert archive / Massachusetts / Rip Current Statements in 2023

Rip Current Statement 4, NWS Boston/Norton, MA

August 29, 20235 counties in Massachusetts; Newport County, Washington County, Rhode Island

NWS Boston/Norton, MA issued this rip current statement at Aug 29, 2023, 2:29 AM EDT for 5 counties in Massachusetts; Newport County, Washington County, Rhode Island. It took effect at Aug 29, 2023, 6:00 AM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Aug 29, 2023, 2:29 AM EDT (06:29 UTC)
In effect from
Aug 29, 2023, 6:00 AM EDT
Expired
Aug 29, 2023, 3:27 PM EDT
In force
9 hr
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, Bristol County, MA, Dukes County, MA, Nantucket County, MA, Plymouth County, MA, Newport County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 51 km from the middle of the area, began a volume at 06:32 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

Brookhaven, NY (KOKX), launched 00:00Z, 6.5 hours before the alert went out and 188 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, Brookhaven, NY at 00:00Z on 2023-08-29Temperature 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, Brookhaven, NY at 00:00Z on 2023-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
695 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

112 
WHUS41 KBOX 290629
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
229 AM EDT Tue Aug 29 2023

MAZ020>024-RIZ006>008-292200-
/O.NEW.KBOX.RP.S.0004.230829T1000Z-230829T2200Z/
Southern Bristol MA-Southern Plymouth MA-Barnstable MA-Dukes MA-
Nantucket MA-Washington RI-Newport RI-Block Island RI-
229 AM EDT Tue Aug 29 2023

...HIGH RIP CURRENT RISK IN EFFECT FROM 6 AM EDT THIS MORNING
THROUGH THIS AFTERNOON...

* WHAT...Dangerous rip currents expected.

* WHERE...Washington, Southern Bristol MA, Southern Plymouth MA, 
  Barnstable MA, Dukes MA, Nantucket MA, and Newport RI Counties.

* WHEN...From 6 AM EDT this morning through this afternoon.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

* ADDITIONAL DETAILS...Risk for rip currents will continue into 
  tonight and Wednesday, and additional statements or high surf 
  advisories may be needed.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
1 follow-up statement
237 
WHUS41 KBOX 291927
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
327 PM EDT Tue Aug 29 2023

MAZ020-022>024-RIZ006>008-300830-
/O.CAN.KBOX.RP.S.0004.000000T0000Z-230829T2200Z/
/O.NEW.KBOX.SU.Y.0003.230830T0900Z-230901T0000Z/
Southern Bristol MA-Barnstable MA-Dukes MA-Nantucket MA-
Washington RI-Newport RI-Block Island RI-
327 PM EDT Tue Aug 29 2023

...HIGH SURF ADVISORY IN EFFECT FROM 5 AM WEDNESDAY TO 8 PM EDT
THURSDAY...

* WHAT...Large breaking waves of 4 to 9 feet expected in the 
  surf zone.

* WHERE...Washington, Southern Bristol MA, Barnstable MA, Dukes 
  MA, Nantucket MA, and Newport RI Counties.

* WHEN...From 5 AM Wednesday to 8 PM EDT Thursday.

* IMPACTS...Dangerous swimming and surfing conditions and 
  localized beach erosion.

* ADDITIONAL DETAILS...Always much safer to swim when lifeguards are present. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

&&

$$

MAZ021-292030-
/O.CAN.KBOX.RP.S.0004.000000T0000Z-230829T2200Z/
Southern Plymouth MA-
327 PM EDT Tue Aug 29 2023

...HIGH RIP CURRENT RISK IS CANCELLED...

High surf and strong rips are not expected to track into the upper portions 
of Buzzards Bay, as the Elizabeth Islands and Marthas Vineyard will block much 
of this wave energy. 

$$

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 29, 3:21 AM EDTSmall Craft AdvisoryBOX3 days
Aug 29, 3:27 PM EDTHigh Surf AdvisoryBOXBarnstable, Bristol, Dukes, Nantucket48 hr

Nearby

Rip Current Statements in Massachusetts, 2023Rip Current Statements in Rhode Island, 2023Every rip current statement in 2023

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.