Alert archive / Massachusetts / Beach Hazards Statements in 2023

Beach Hazards Statement 1, NWS Boston/Norton, MA

May 27, 20235 counties in Rhode Island; 8 counties in Massachusetts

NWS Boston/Norton, MA issued this beach hazards statement at May 27, 2023, 3:45 AM EDT for 5 counties in Rhode Island; 8 counties in Massachusetts. It took effect at May 27, 2023, 8:00 AM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
May 27, 2023, 3:45 AM EDT (07:45 UTC)
In effect from
May 27, 2023, 8:00 AM EDT
Expired
May 27, 2023, 8:00 PM EDT
In force
12 hr
Issued by
NWS Boston/Norton, MA

Counties Barnstable County, MA, Bristol County, MA, Dukes County, MA, Essex County, MA, Nantucket County, MA, Norfolk County, MA, Plymouth County, MA, Suffolk County, MA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 20 km from the middle of the area, began a volume at 07:46 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, 7.8 hours before the alert went out and 186 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 2023-05-27Temperature 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 2023-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 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
2183 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

981 
WHUS41 KBOX 270745
CFWBOX

Coastal Hazard Message
National Weather Service Boston/Norton MA
345 AM EDT Sat May 27 2023

MAZ007-015-016-019>024-RIZ002-004>008-272200-
/O.NEW.KBOX.BH.S.0001.230527T1200Z-230528T0000Z/
Eastern Essex MA-Suffolk MA-Eastern Norfolk MA-
Eastern Plymouth MA-Southern Bristol MA-Southern Plymouth MA-
Barnstable MA-Dukes MA-Nantucket MA-Southeast Providence RI-
Eastern Kent RI-Bristol RI-Washington RI-Newport RI-
Block Island RI-
345 AM EDT Sat May 27 2023

...BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS EVENING...

* WHAT...Warm afternoon air temperatures in the 70s may cause people to
  underestimate the dangers of the cold water temperatures, which
  are currently only in the 50s.

* WHERE...All Ocean, Bay and Harbor Waters off the southern New England coast.

* WHEN...Through Early This Evening. 

* IMPACTS...The cold water temperatures can quickly cause hypothermia to anyone 
			immersed in the water. When the water temperature is below 60 
			degrees, the average submerged person could lose dexterity within 
			minutes and be unable to accomplish simple tasks. Anyone on small 
			boats, canoes or kayaks should plan accordingly if recreating this 
			weekend, and use extreme caution to avoid this threat. 

* ADDITIONAL DETAILS...

* Always wear a life jacket.

* Dress for the water temperatures, not air temperatures. Wear cold 
  water protection, like a wetsuit or drysuit.

* Carry an Emergency Position Indication Radio Device.

* File a float plan with someone you trust.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Frank

Nearby

Beach Hazards Statements in Massachusetts, 2023Beach Hazards Statements in Rhode Island, 2023Every beach hazards 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.