Alert archive / Massachusetts / Rip Current Statements in 2020

Rip Current Statement 2, NWS Boston/Norton, MA

June 4, 2020Bristol County, Dukes County, Nantucket County, Massachusetts; Newport County, Washington County, Rhode Island

NWS Boston/Norton, MA issued this rip current statement at Jun 4, 2020, 3:30 AM EDT for Bristol County, Dukes County, Nantucket County, Massachusetts; Newport County, Washington County, Rhode Island. It took effect at Jun 4, 2020, 9:00 AM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jun 4, 2020, 3:30 AM EDT (07:30 UTC)
In effect from
Jun 4, 2020, 9:00 AM EDT
Expired
Jun 4, 2020, 6:00 PM EDT
In force
9 hr
Issued by
NWS Boston/Norton, MA

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

The radar

The Boston radar (KBOX), 57 km from the middle of the area, began a volume at 07:34 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, 7.5 hours before the alert went out and 84 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 2020-06-04Temperature 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 2020-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.1939587897Sfc1 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
1302 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

335 
WHUS41 KBOX 040730
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
330 AM EDT Thu Jun 4 2020

MAZ020-023-024-RIZ006>008-041530-
/O.NEW.KBOX.RP.S.0002.200604T1300Z-200604T2200Z/
Southern Bristol MA-Dukes MA-Nantucket MA-Washington RI-
Newport RI-Block Island RI-
330 AM EDT Thu Jun 4 2020

...HIGH RIP CURRENT RISK IN EFFECT FROM 9 AM EDT THIS MORNING
THROUGH THIS AFTERNOON...

* WHAT...Dangerous rip currents expected.

* WHERE...Ocean exposed south facing beaches along the south coast and Islands.

* WHEN...From 9 AM EDT this morning through this afternoon.

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

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.

&&

$$

Frank
1 follow-up statement
647 
WHUS41 KBOX 041419
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
1019 AM EDT Thu Jun 4 2020

MAZ020-023-024-RIZ006>008-042200-
/O.CON.KBOX.RP.S.0002.000000T0000Z-200604T2200Z/
Southern Bristol MA-Dukes MA-Nantucket MA-Washington RI-
Newport RI-Block Island RI-
1019 AM EDT Thu Jun 4 2020

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...Dangerous rip currents expected.

* WHERE...Ocean exposed south facing beaches along the south 
  coast and Islands.

* WHEN...From 9 AM EDT this morning through this afternoon.

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

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 8:24 PM EDTSpecial Marine WarningBOX51 min
Jun 3, 9:32 PM EDTSpecial Marine WarningBOX43 min
Jun 3, 10:10 PM EDTSpecial Marine WarningBOX50 min
Jun 3, 9:12 PM EDTSpecial Weather StatementBOXWashington48 min
Jun 3, 9:51 PM EDTSpecial Weather StatementBOXWashington39 min

Nearby

Rip Current Statements in Massachusetts, 2020Rip Current Statements in Rhode Island, 2020Every rip current statement in 2020

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.