Alert archive / Connecticut / Areal Flood Warnings in 2011

Areal Flood Warning 25, NWS Boston/Norton, MA

December 8, 2011Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this areal flood warning at Dec 8, 2011, 5:40 AM EST for Northeastern Connecticut Planning Region, Connecticut. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 8, 2011, 5:40 AM EST (10:40 UTC)
Expired: Dec 8, 2011, 8:30 AM EST
In force: 3 hr
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Flood severity: None

County Northeastern Connecticut Planning Region, CT

The radar

The Boston radar (KBOX), 71 km from the middle of the area, began a volume at 10:39 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, 10.7 hours before the alert went out and 130 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 456 m above ground
0-6 km bulk shear: 87 kt
0-1 km storm-relative helicity: 319 m²/s²
0-3 km storm-relative helicity: 403 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Dec 8, 4:59 AM EST, 41 minutes earlier.

Area forecast discussion, Dec 8, 4:59 AM EST, 41 minutes before

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Hazardous weather outlook, Dec 8, 4:18 AM EST, 1 hour 22 minutes before

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In the hours before

Local storm report, Dec 8, 3:51 AM EST, 1 hour 49 minutes before

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Local storm report, Dec 8, 3:55 AM EST, 1 hour 45 minutes before

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The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 8, 12:12 AM EST	Areal Flood Advisory	BOX	Bristol, Middlesex, Norfolk, Plymouth, Suffolk, Worcester	5 hr
Dec 8, 1:23 AM EST	Areal Flood Advisory	BOX	Franklin, Hampden, Hampshire, Middlesex, Worcester	4 hr
Dec 8, 3:41 AM EST	High Wind Warning	BOX	Barnstable, Bristol, Dukes, Nantucket, Plymouth	3 hr
Dec 8, 3:41 AM EST	Wind Advisory	BOX	Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 4 more	6 hr
Dec 8, 4:05 AM EST	Storm Warning	BOX		3 hr
Dec 8, 4:27 AM EST	Areal Flood Warning	BOX	Franklin, Hampden, Hampshire	4 hr
Dec 8, 10:29 AM EST	Small Craft Advisory	BOX		16 hr
Dec 7, 10:58 PM EST	River Flood Warning	BOX	Kent, Providence	70 hr
Dec 8, 5:38 PM EST	Areal Flood Advisory	BOX	Washington	12 hr
Dec 8, 6:33 PM EST	Areal Flood Warning	BOX	Washington	5 hr
Dec 8, 4:39 AM EST	River Flood Warning	BOX	Capitol Planning Region	25 hr
Dec 8, 11:45 AM EST	River Flood Warning	BOX	Capitol Planning Region, Lower Connecticut River Valley Planning Region	57 hr

Nearby

Areal Flood Warnings in Connecticut, 2011 Every areal flood warning in 2011

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.