Alert archive / Massachusetts / Rip Current Statements in 2021
Rip Current Statement 4, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this rip current statement at Jul 10, 2021, 4:42 AM EDT for Bristol County, Dukes County, Nantucket County, Massachusetts; Newport County, Washington County, Rhode Island. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Jul 10, 2021, 4:42 AM EDT (08:42 UTC)
- Expired
- Jul 10, 2021, 8:00 PM EDT
- In force
- 15 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 08:45 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, 8.7 hours before the alert went out and 174 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
- 547 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 981 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.5
The text
As transmitted.
323 WHUS41 KBOX 100842 CFWBOX Coastal Hazard Message National Weather Service Boston/Norton MA 442 AM EDT Sat Jul 10 2021 MAZ020-023-024-RIZ006>008-102000- /O.NEW.KBOX.RP.S.0004.210710T0842Z-210710T2000Z/ Southern Bristol MA-Dukes MA-Nantucket MA-Washington RI- Newport RI-Block Island RI- 442 AM EDT Sat Jul 10 2021 ...HIGH RIP CURRENT RISK IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... * WHAT...Dangerous rip currents and rough surf. * WHERE...All south facing oceans in Massachusetts, Southern Bristol MA, Dukes MA and Nantucket MA Counties. In Rhode Island, Washington RI, Newport RI and Block Island RI Counties. * WHEN...Until 4 PM EDT 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. && $$ Nocera
2 follow-up statements
440 WHUS41 KBOX 101026 CCA CFWBOX Coastal Hazard Message...CORRECTED National Weather Service Boston/Norton MA 626 AM EDT Sat Jul 10 2021 MAZ020-023-024-RIZ006>008-102000- /O.COR.KBOX.RP.S.0004.210710T1025Z-210710T2000Z/ Southern Bristol MA-Dukes MA-Nantucket MA-Washington RI- Newport RI-Block Island RI- 626 AM EDT Sat Jul 10 2021 ...HIGH RIP CURRENT RISK IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... * WHAT...Dangerous rip currents and rough surf. * WHERE...All south facing beaches in Massachusetts, Southern Bristol MA, Dukes MA and Nantucket MA Counties. In Rhode Island, Washington RI, Newport RI and Block Island RI Counties. * WHEN...Until 4 PM EDT this afternoon. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. PRECAUTIONARY/PREPAREDNESS ACTIONS... Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help. && $$ Nocera/BL
004 WHUS41 KBOX 101838 CFWBOX Coastal Hazard Message National Weather Service Boston/Norton MA 238 PM EDT Sat Jul 10 2021 MAZ020-023-024-RIZ006>008-110000- /O.EXT.KBOX.RP.S.0004.000000T0000Z-210711T0000Z/ Southern Bristol MA-Dukes MA-Nantucket MA-Washington RI- Newport RI-Block Island RI- 238 PM EDT Sat Jul 10 2021 ...HIGH RIP CURRENT RISK NOW IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Dangerous rip currents and rough surf. * WHERE...All south facing beaches in Massachusetts, Southern Bristol MA, Dukes MA and Nantucket MA Counties. In Rhode Island, Washington RI, Newport RI and Block Island RI 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 8:47 PM EDT | Special Weather Statement | BOX | Hampden | 58 min |
| Jul 9, 9:47 PM EDT | River Flood Warning | BOX | Worcester | 10 hr |
| Jul 9, 9:47 PM EDT | River Flood Warning | BOX | Worcester | 27 hr |
| Jul 10, 12:37 PM EDT | River Flood Warning | BOX | Middlesex, Norfolk | 24 hr |
| Jul 10, 12:11 AM EDT | Special Weather Statement | BOX | Kent | 49 min |
Nearby
Rip Current Statements in Massachusetts, 2021Rip Current Statements in Rhode Island, 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.