Alert archive / Massachusetts / Flood Watches in 2023
Flood Watch 4, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flood watch at Jul 13, 2023, 12:12 PM EDT for 6 counties in Massachusetts; 5 counties in Rhode Island; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It took effect at Jul 13, 2023, 5:00 PM EDT. It was in force for 31 hr.
The area
The counties it named.
The facts
- Issued
- Jul 13, 2023, 12:12 PM EDT (16:12 UTC)
- In effect from
- Jul 13, 2023, 5:00 PM EDT
- Expired
- Jul 15, 2023, 12:00 AM EDT
- In force
- 31 hr
- Issued by
- NWS Boston/Norton, MA
- Flood severity
- None
Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT, Bristol County, MA, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Norfolk County, MA, Worcester County, MA, Bristol County, RI, Kent County, RI, Newport County, RI, Providence County, RI, Washington County, RI
The radar
The Boston radar (KBOX), 58 km from the middle of the area, began a volume at 16:15 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, 4.2 hours before the alert went out and 146 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
- 264 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1247 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
What forecasters said that day
The local office's own words before this flood watch 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 flood watch went out at Jul 13, 7:15 AM EDT, 4 hours 57 minutes earlier.
Area forecast discussion, Jul 13, 7:15 AM EDT, 4 hours 57 minutes before
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</html>Hazardous weather outlook, Jul 13, 4:26 AM EDT, 7 hours 46 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 |
|---|---|---|---|---|
| Jul 13, 7:22 PM EDT | Special Weather Statement | BOX | Hampshire | 53 min |
| Jul 13, 7:50 PM EDT | Special Weather Statement | BOX | Franklin | 40 min |
Nearby
Flood Watches in Massachusetts, 2023Flood Watches in Rhode Island, 2023Flood Watches in Connecticut, 2023Every flood watch 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.