Alert archive / Connecticut / Areal Flood Warnings in 2018
Areal Flood Warning 21, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this areal flood warning at Apr 16, 2018, 7:33 PM EDT for Northeastern Connecticut Planning Region, Connecticut. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 16, 2018, 7:33 PM EDT (23:33 UTC)
- Expired
- Apr 16, 2018, 9:30 PM EDT
- In force
- 117 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
The radar
The Boston radar (KBOX), 94 km from the middle of the area, began a volume at 23:33 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, 11.6 hours before the alert went out and 118 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
- 7 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 391 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 902 m²/s²
- 0-3 km storm-relative helicity
- 990 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
715 WGUS41 KBOX 162333 FLWBOX BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Boston/Norton MA 733 PM EDT MON APR 16 2018 CTC013-015-170130- /O.NEW.KBOX.FA.W.0021.180416T2333Z-180417T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Windham CT-Tolland CT- 733 PM EDT MON APR 16 2018 The National Weather Service in Boston/Norton has issued a * Flood Warning for Small Streams in... West central Windham County in northern Connecticut... Central Tolland County in northern Connecticut... * Until 930 PM EDT. * At 731 PM EDT, water levels along the small streams of west central Windham county and central and eastern Tolland county remain close to flood stage, including the Willimantic River in Coventry and the Mount Hope River in Warrenville. The river level may brief reach flood stage this evening, then fall below flood later tonight. * Some locations that will experience flooding include... Mansfield, Windham, Willimantic, Tolland, Coventry, Hebron, Willington, Columbia, Ashford, Andover, Chaplin and Hampton. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be especially cautious at night when it is harder to recognize the dangers of flooding. && LAT...LON 4188 7237 4192 7214 4175 7208 4168 7236 $$ EVT
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 11:15 AM EDT | Areal Flood Advisory | BOX | Capitol Planning Region | 4 hr |
| Apr 16, 12:57 PM EDT | Areal Flood Advisory | BOX | Northeastern Connecticut Planning Region | 4 hr |
| Apr 16, 1:24 PM EDT | Special Weather Statement | BOX | 36 min | |
| Apr 16, 1:26 PM EDT | Areal Flood Warning | BOX | Capitol Planning Region | 6 hr |
| Apr 16, 5:49 PM EDT | Areal Flood Warning | BOX | Northeastern Connecticut Planning Region | 116 min |
| Apr 16, 7:42 PM EDT | Areal Flood Warning | BOX | Capitol Planning Region | 2 hr |
Nearby
Areal Flood Warnings in Connecticut, 2018Every areal flood warning in 2018
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.