Alert archive / Connecticut / Areal Flood Warnings in 2017

Areal Flood Warning 23, NWS Boston/Norton, MA

October 25, 2017Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this areal flood warning at Oct 25, 2017, 4:11 AM EDT for Capitol Planning Region, Connecticut. It was in force for 2 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: Oct 25, 2017, 4:11 AM EDT (08:11 UTC)
Expired: Oct 25, 2017, 6:15 AM EDT
In force: 2 hr
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Flood severity: None

County Capitol Planning Region, CT

The radar

The Brookhaven radar (KOKX), 109 km from the middle of the area, began a volume at 08:15 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 00:00Z, 8.2 hours before the alert went out and 109 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: 473 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 604 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 248 m²/s²
0-3 km storm-relative helicity: 290 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.3

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 Oct 25, 4:02 AM EDT, 9 minutes earlier.

Area forecast discussion, Oct 25, 4:02 AM EDT, 9 minutes before

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Hazardous weather outlook, Oct 25, 4:04 AM EDT, 7 minutes before

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In the hours before

Special weather statement, Oct 25, 12:55 AM EDT, 3 hours 16 minutes before

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Local storm report, Oct 25, 1:19 AM EDT, 2 hours 52 minutes before

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Special weather statement, Oct 25, 1:52 AM EDT, 2 hours 19 minutes before

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Local storm report, Oct 25, 2:26 AM EDT, 1 hour 45 minutes before

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Special weather statement, Oct 25, 3:01 AM EDT, 1 hour 10 minutes before

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Local storm report, Oct 25, 3:30 AM EDT, 41 minutes before

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        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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
Oct 24, 8:47 PM EDT	Areal Flood Advisory	BOX	Franklin, Hampden, Hampshire	3 hr
Oct 24, 9:06 PM EDT	Special Weather Statement	BOX	Franklin	39 min
Oct 24, 9:31 PM EDT	Flash Flood Warning	BOX	Hampden, Hampshire	4 hr
Oct 24, 9:48 PM EDT	Special Weather Statement	BOX	Franklin, Hampden, Hampshire	42 min
Oct 24, 9:58 PM EDT	Flash Flood Warning	BOX	Franklin, Hampshire	4 hr
Oct 24, 10:27 PM EDT	Special Weather Statement	BOX	Franklin, Hampden, Hampshire	93 min
Oct 24, 10:54 PM EDT	Areal Flood Advisory	BOX	Franklin, Hampden, Hampshire, Worcester	3 hr
Oct 24, 11:19 PM EDT	Special Weather Statement	BOX	Worcester	56 min
Oct 25, 12:55 AM EDT	Special Weather Statement	BOX	Worcester	35 min
Oct 25, 1:23 AM EDT	Flash Flood Warning	BOX	Hampden, Hampshire	3 hr
Oct 25, 1:52 AM EDT	Special Weather Statement	BOX	Worcester	38 min
Oct 25, 1:55 AM EDT	Areal Flood Advisory	BOX	Franklin, Hampden, Hampshire, Worcester	3 hr
Oct 25, 3:19 AM EDT	Areal Flood Advisory	BOX	Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk	116 min
Oct 25, 3:48 AM EDT	Areal Flood Advisory	BOX	Essex, Middlesex, Suffolk	117 min
Oct 25, 5:14 AM EDT	Areal Flood Advisory	BOX	Bristol, Essex, Norfolk, Plymouth, Suffolk	2 hr
Oct 25, 5:26 AM EDT	Small Craft Advisory	BOX		70 hr
Oct 25, 7:05 AM EDT	Areal Flood Advisory	BOX	Bristol, Norfolk, Plymouth, Suffolk	115 min
Oct 25, 7:31 AM EDT	Areal Flood Advisory	BOX	Essex, Middlesex, Norfolk, Plymouth, Suffolk	119 min
Oct 25, 12:16 PM EDT	Areal Flood Advisory	BOX	Barnstable, Dukes, Nantucket, Plymouth	3 hr
Oct 25, 12:58 PM EDT	Areal Flood Warning	BOX	Barnstable, Dukes	6 hr
Oct 25, 1:48 PM EDT	Special Marine Warning	BOX		57 min
Oct 25, 4:00 PM EDT	Gale Watch	BOX		11 hr
Oct 25, 2:38 AM EDT	Areal Flood Advisory	BOX	Bristol, Kent, Newport, Providence, Washington	4 hr
Oct 25, 3:01 AM EDT	Special Weather Statement	BOX	Kent, Washington	29 min
Oct 24, 10:52 PM EDT	Areal Flood Advisory	BOX	Capitol Planning Region	3 hr
Oct 25, 1:44 AM EDT	Areal Flood Advisory	BOX	Capitol Planning Region	3 hr

Nearby

Areal Flood Warnings in Connecticut, 2017 Every areal flood warning in 2017

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.