Alert archive / Massachusetts / Rip Current Statements in 2026
Rip Current Statement 10, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this rip current statement at Aug 21, 2026, 2:51 PM EDT for Barnstable County, Norfolk County, Plymouth County, Massachusetts. It took effect at Aug 22, 2026, 6:00 AM EDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2026, 2:51 PM EDT (18:51 UTC)
- In effect from
- Aug 22, 2026, 6:00 AM EDT
- Expired
- Aug 22, 2026, 6:00 PM EDT
- In force
- 12 hr
- Issued by
- NWS Boston/Norton, MA
Counties Barnstable County, MA, Norfolk County, MA, Plymouth County, MA
The radar
The Boston radar (KBOX), 34 km from the middle of the area, began a volume at 18:51 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 12:00Z, 6.9 hours before the alert went out and 215 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.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 439 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
197 WHUS41 KBOX 211851 CFWBOX Coastal Hazard Message National Weather Service Boston/Norton MA 251 PM EDT Fri Aug 21 2026 MAZ019-022-221000- /O.NEW.KBOX.RP.S.0010.260822T1000Z-260822T2200Z/ Eastern Plymouth MA-Barnstable MA- 251 PM EDT Fri Aug 21 2026 ...HIGH RIP CURRENT RISK IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... * WHAT...Dangerous rip currents expected. * WHERE...Eastern Plymouth MA and Barnstable MA Counties. * WHEN...From Saturday morning through Saturday 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. && $$
1 follow-up statement
158 WHUS41 KBOX 220628 CFWBOX Coastal Hazard Message National Weather Service Boston/Norton MA 228 AM EDT Sat Aug 22 2026 MAZ019-022-222200- /O.CON.KBOX.RP.S.0010.260822T1000Z-260822T2200Z/ Eastern Plymouth MA-Barnstable MA- 228 AM EDT Sat Aug 22 2026 ...HIGH RIP CURRENT RISK REMAINS IN EFFECT FROM 6 AM EDT THIS MORNING THROUGH THIS AFTERNOON... * WHAT...Dangerous rip currents expected. * WHERE...Eastern Plymouth and Barnstable MA Counties. * WHEN...From 6 AM EDT this morning through this afternoon. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 12:13 PM EDT | Small Craft Advisory | BOX | 6 hr |
Nearby
Rip Current Statements in Massachusetts, 2026Every rip current statement in 2026
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.