Alert archive / Massachusetts / Rip Current Statements in 2021

Rip Current Statement 3, NWS Boston/Norton, MA

July 2, 20215 counties in Massachusetts

NWS Boston/Norton, MA issued this rip current statement at Jul 2, 2021, 7:57 PM EDT for 5 counties in Massachusetts. It took effect at Jul 3, 2021, 8:00 AM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jul 2, 2021, 7:57 PM EDT (23:57 UTC)
In effect from
Jul 3, 2021, 8:00 AM EDT
Expired
Jul 3, 2021, 8:00 PM EDT
In force
12 hr
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, Essex County, MA, Nantucket County, MA, Norfolk County, MA, Plymouth County, MA

The radar

The Boston radar (KBOX), 43 km from the middle of the area, began a volume at 23:56 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

Gray, ME (KGYX), launched 12:00Z, 12.0 hours before the alert went out and 218 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, Gray, ME at 12:00Z on 2021-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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, Gray, ME at 12:00Z on 2021-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
448 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

182 
WHUS41 KBOX 022357
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
757 PM EDT Fri Jul 2 2021

MAZ007-019-022-024-031300-
/O.CAN.KBOX.RP.S.0002.000000T0000Z-210703T0000Z/
/O.NEW.KBOX.RP.S.0003.210703T1500Z-210704T0000Z/
Eastern Essex MA-Eastern Plymouth MA-Barnstable MA-Nantucket MA-
757 PM EDT Fri Jul 2 2021

...HIGH RIP CURRENT RISK IN EFFECT FROM LATE SATURDAY MORNING THROUGH
SATURDAY EVENING...
...HIGH RIP CURRENT RISK FOR FRIDAY IS CANCELLED...

* WHAT...Dangerous rip currents expected.

* WHERE...Eastern Essex MA, Eastern Plymouth MA, Barnstable MA 
  and Nantucket MA Counties.

* WHEN...From 11 AM Saturday morning through Saturday evening.

* 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.

&&

$$
2 follow-up statements
417 
WHUS41 KBOX 030748
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
348 AM EDT Sat Jul 3 2021

MAZ007-019-022-024-032100-
/O.EXT.KBOX.RP.S.0003.210703T1200Z-210704T0000Z/
Eastern Essex MA-Eastern Plymouth MA-Barnstable MA-Nantucket MA-
348 AM EDT Sat Jul 3 2021

...HIGH RIP CURRENT RISK NOW IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

* WHAT...Dangerous rip currents expected.

* WHERE...Eastern Plymouth MA, Eastern Essex MA, Barnstable MA 
  and Nantucket MA Counties.

* WHEN...From 8 AM EDT this morning through this evening.

* 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.

&&

$$
637 
WHUS41 KBOX 032038
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
438 PM EDT Sat Jul 3 2021

MAZ007-019-022-024-040000-
/O.CON.KBOX.RP.S.0003.000000T0000Z-210704T0000Z/
Eastern Essex MA-Eastern Plymouth MA-Barnstable MA-Nantucket MA-
438 PM EDT Sat Jul 3 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...Dangerous rip currents.

* WHERE...Eastern Plymouth MA, Eastern Essex MA, Barnstable MA 
  and Nantucket MA Counties.

* WHEN...Until 8 PM EDT this evening.

* 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
Jul 1, 10:17 PM EDTSpecial Weather StatementBOXMiddlesex, Worcester88 min
Jul 2, 12:05 AM EDTSpecial Weather StatementBOXMiddlesex, Worcester55 min
Jul 2, 1:00 AM EDTSpecial Weather StatementBOXMiddlesex, Norfolk90 min
Jul 2, 2:23 AM EDTAreal Flood WarningBOXEssex, Middlesex, Norfolk, Suffolk3 hr
Jul 2, 2:34 AM EDTSpecial Weather StatementBOXEssex, Middlesex, Norfolk, Worcester86 min
Jul 2, 4:24 AM EDTRip Current StatementBOXBarnstable, Essex, Nantucket, Norfolk, Plymouth16 hr

Nearby

Rip Current Statements in Massachusetts, 2021Every rip current statement in 2021

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.