Alert archive / Massachusetts / Coastal Flood Statements in 2023
Coastal Flood Statement 11, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this coastal flood statement at Sep 29, 2023, 2:12 PM EDT for 5 counties in Massachusetts. It took effect at Sep 29, 2023, 10:00 PM EDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Sep 29, 2023, 2:12 PM EDT (18:12 UTC)
- In effect from
- Sep 29, 2023, 10:00 PM EDT
- Expired
- Sep 30, 2023, 3:00 AM EDT
- In force
- 5 hr
- Issued by
- NWS Boston/Norton, MA
Counties Barnstable County, MA, Dukes County, MA, Nantucket County, MA, Norfolk County, MA, Plymouth County, MA
The radar
The Boston radar (KBOX), 54 km from the middle of the area, began a volume at 18:13 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, 6.2 hours before the alert went out and 212 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 574 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Sep 29, 2:00 PM EDT, 12 minutes earlier.
Area forecast discussion, Sep 29, 2:00 PM EDT, 12 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 |
|---|---|---|---|---|
| Sep 29, 12:30 PM EDT | Areal Flood Warning | BOX | Hampden | 14 hr |
| Sep 29, 3:35 PM EDT | Special Weather Statement | BOX | Franklin, Hampden, Hampshire, Worcester | 85 min |
| Sep 29, 4:29 PM EDT | River Flood Warning | BOX | Capitol Planning Region | 12 hr |
| Sep 29, 4:29 PM EDT | River Flood Warning | BOX | Capitol Planning Region | 3 days |
Nearby
Coastal Flood Statements in Massachusetts, 2023Every coastal flood 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.