Alert archive / Massachusetts / Areal Flood Warnings in 2010

Areal Flood Warning 2, NWS Boston/Norton, MA

January 25, 2010Hampden County, Worcester County, Massachusetts; Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this areal flood warning at Jan 25, 2010, 3:54 PM EST for Hampden County, Worcester County, Massachusetts; Northeastern Connecticut Planning Region, Connecticut. It was in force for 4 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: Jan 25, 2010, 3:54 PM EST (20:54 UTC)
Expired: Jan 25, 2010, 8:00 PM EST
In force: 4 hr
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Flood severity: None

Counties Northeastern Connecticut Planning Region, CT, Hampden County, MA, Worcester County, MA

The radar

The Boston radar (KBOX), 87 km from the middle of the area, began a volume at 20:53 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, 8.9 hours before the alert went out and 149 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: 2 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 257 m²/s²
0-3 km storm-relative helicity: 269 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 Jan 25, 3:34 PM EST, 20 minutes earlier.

Area forecast discussion, Jan 25, 3:34 PM EST, 20 minutes before

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Hazardous weather outlook, Jan 25, 12:14 PM EST, 3 hours 40 minutes before

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In the hours before

Local storm report, Jan 25, 11:38 AM EST, 4 hours 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAUNTON MA
1138 AM EST MON JAN 25 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1006 AM     NON-TSTM WND DMG GRANBY                  41.95N 72.78W
01/25/2010                   HARTFORD           CT   AMATEUR RADIO

            TREE AND WIRES DOWN.

1125 AM     NON-TSTM WND DMG SOUTH WINDSOR           41.82N 72.62W
01/25/2010                   HARTFORD           CT   AMATEUR RADIO

            TREE DOWN ON WIRES ON BEAR HILL ROAD.

&&

JWD/AED

Local storm report, Jan 25, 12:28 PM EST, 3 hours 26 minutes before

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Local storm report, Jan 25, 2:07 PM EST, 1 hour 47 minutes before

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Local storm report, Jan 25, 3:49 PM EST, 5 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
Jan 25, 4:08 AM EST	Wind Advisory	BOX	Barnstable, Bristol, Dukes, Essex, Franklin, Hampden and 7 more	14 hr
Jan 25, 9:49 AM EST	High Wind Warning	BOX	Barnstable, Bristol, Dukes, Hampden, Nantucket, Norfolk and 1 more	12 hr
Jan 25, 12:04 PM EST	Coastal Flood Advisory	BOX	Bristol	5 hr
Jan 25, 12:36 PM EST	Areal Flood Advisory	BOX	Franklin, Hampden, Hampshire	4 hr
Jan 25, 1:42 PM EST	Areal Flood Warning	BOX	Franklin, Hampden, Hampshire	6 hr
Jan 25, 1:59 PM EST	Areal Flood Advisory	BOX	Worcester	4 hr
Jan 25, 2:47 PM EST	Areal Flood Advisory	BOX	Essex, Middlesex, Norfolk, Suffolk	4 hr
Jan 25, 3:37 PM EST	Areal Flood Advisory	BOX	Bristol, Plymouth	4 hr
Jan 25, 6:51 PM EST	Small Craft Advisory	BOX		35 hr

Nearby

Areal Flood Warnings in Massachusetts, 2010 Areal Flood Warnings in Connecticut, 2010 Every areal flood warning in 2010

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.