Alert archive / Massachusetts / Coastal Flood Statements in 2024
Coastal Flood Statement 15, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this coastal flood statement at Aug 19, 2024, 3:18 PM EDT for 8 counties in Massachusetts; 4 counties in Rhode Island. It took effect at Aug 19, 2024, 8:00 PM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Aug 19, 2024, 3:18 PM EDT (19:18 UTC)
- In effect from
- Aug 19, 2024, 8:00 PM EDT
- Expired
- Aug 20, 2024, 3:00 AM EDT
- In force
- 7 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, Washington County, RI
The radar
The Boston radar (KBOX), 22 km from the middle of the area, began a volume at 19:18 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, 7.3 hours before the alert went out and 189 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
- 1003 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 559 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.1
What forecasters said that day
The local office's own words before this coastal flood statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Boston/Norton, MA wrote its last area forecast discussion before this coastal flood statement went out at Aug 18, 7:29 PM EDT, 19 hours 49 minutes earlier.
Area forecast discussion, Aug 18, 7:29 PM EDT, 19 hours 49 minutes before
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</html>The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 1:25 AM EDT | Special Marine Warning | BOX | 50 min | |
| Aug 19, 10:23 AM EDT | Special Marine Warning | BOX | 67 min |
Nearby
Coastal Flood Statements in Massachusetts, 2024Coastal Flood Statements in Rhode Island, 2024Every coastal flood statement in 2024
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.