Alert archive / Connecticut / Areal Flood Warnings in 2009

Areal Flood Warning 4, NWS Boston/Norton, MA

July 2, 2009Capitol Planning Region, Connecticut

NWS Boston/Norton, MA issued this areal flood warning at Jul 2, 2009, 8:40 PM EDT for Capitol Planning Region, Connecticut. It was in force for 12 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: Jul 2, 2009, 8:40 PM EDT (00:40 UTC)
Expired: Jul 3, 2009, 8:30 AM EDT
In force: 12 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 00:40 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

Chatham, MA (KCHH), launched 00:00Z, 0.7 hours before the alert went out and 217 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: 973 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 437 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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 Jul 2, 7:03 PM EDT, 1 hour 37 minutes earlier.

Area forecast discussion, Jul 2, 7:03 PM EDT, 1 hour 37 minutes before

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Hazardous weather outlook, Jul 2, 4:16 PM EDT, 4 hours 24 minutes before

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In the hours before

Local storm report, Jul 2, 6:14 PM EDT, 2 hours 26 minutes before

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Special weather statement, Jul 2, 7:03 PM EDT, 1 hour 37 minutes before

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Local storm report, Jul 2, 7:22 PM EDT, 1 hour 18 minutes before

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Local storm report, Jul 2, 7:25 PM EDT, 1 hour 15 minutes before

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Local storm report, Jul 2, 8:07 PM EDT, 33 minutes before

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Special weather statement, Jul 2, 8:37 PM EDT, 3 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
Jul 2, 9:06 PM EDT	Areal Flood Warning	BOX	Worcester	3 hr
Jul 3, 4:08 AM EDT	Flash Flood Watch	BOX	Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more	16 hr
Jul 3, 2:57 PM EDT	Special Marine Warning	BOX		33 min
Jul 3, 3:44 PM EDT	Severe Thunderstorm Warning	BOX	Middlesex, Norfolk, Worcester	46 min
Jul 3, 4:07 PM EDT	Small Craft Advisory	BOX		27 hr
Jul 3, 5:59 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire	31 min
Jul 3, 2:54 PM EDT	Severe Thunderstorm Warning	BOX	Bristol, Kent, Providence	36 min
Jul 3, 8:25 AM EDT	Areal Flood Advisory	BOX	Capitol Planning Region	6 hr
Jul 3, 2:00 PM EDT	Areal Flood Advisory	BOX	Capitol Planning Region	6 hr

Nearby

Areal Flood Warnings in Connecticut, 2009 Every areal flood warning in 2009

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.