Alert archive / Massachusetts / Areal Flood Advisories in 2012

Areal Flood Advisory 80, NWS Boston/Norton, MA

September 18, 20124 counties in Massachusetts; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this areal flood advisory at Sep 18, 2012, 8:52 PM EDT for 4 counties in Massachusetts; Capitol Planning Region, Northeastern Connecticut Planning Region, Connecticut. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Sep 18, 2012, 8:52 PM EDT (00:52 UTC)
Expired: Sep 19, 2012, 2:10 AM EDT
In force: 5 hr
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon

Counties Capitol Planning Region, CT, Northeastern Connecticut Planning Region, CT, Franklin County, MA, Hampden County, MA, Hampshire County, MA, Worcester County, MA

The radar

The Boston radar (KBOX), 106 km from the middle of the area, began a volume at 00:53 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

Albany, NY (KALY), launched 00:00Z, 0.9 hours before the alert went out and 131 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: 47 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 675 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 47 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 advisory 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 advisory went out at Sep 18, 8:10 PM EDT, 42 minutes earlier.

Area forecast discussion, Sep 18, 8:10 PM EDT, 42 minutes before

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Hazardous weather outlook, Sep 18, 8:09 PM EDT, 43 minutes before

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In the hours before

Special weather statement, Sep 18, 7:04 PM EDT, 1 hour 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
704 PM EDT TUE SEP 18 2012

CTZ002>004-MAZ002>004-008>011-026-NHZ011-012-015-190030-
CHESHIRE NH-EASTERN FRANKLIN MA-EASTERN HAMPDEN MA-EASTERN HAMPSHIRE
MA-EASTERN HILLSBOROUGH NH-HARTFORD CT-NORTHERN WORCESTER
MA-NORTHWEST MIDDLESEX COUNTY MA-TOLLAND CT-WESTERN AND CENTRAL
HILLSBOROUGH NH-WESTERN FRANKLIN MA-WESTERN HAMPDEN MA-WESTERN
HAMPSHIRE MA-WINDHAM CT-
704 PM EDT TUE SEP 18 2012

AT 700 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE
OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH.
THE LINE WAS IN THE HUDSON VALLEY...MOVING NORTHEAST AT 50 MPH.

* SOME LOCATIONS AFFECTED INCLUDE... CHARLEMONT...GREENFIELD...
KEENE...MANCHESTER...GARDNER...FITCHBURG...NORTHAMPTON...WESTFIELD...
SPRINGFIELD...ORANGE...SPRINGFIELD...GARDNER...FITCHBURG...
HARTFORD...NEW BRITAIN...AND TOLLAND.

FOR YOUR SAFETY...GET INSIDE WHEN THESE STORMS APPROACH. WINDS MAY BE
STRONG ENOUGH TO BRING DOWN SMALL BRANCHES. HEAVY DOWNPOURS MAY
CAUSE MINOR STREET FLOODING AND PONDING OF WATER IN POOR DRAINAGE
AREAS.  DO NOT DRIVE THROUGH FLOODED ROADS.

&&

LAT...LON 4263 7296 4274 7303 4273 7247 4288 7256
      4316 7246 4313 7205 4321 7191 4312 7185
      4315 7167 4306 7164 4302 7139 4295 7137
      4216 7215 4161 7232 4163 7266 4155 7294
      4180 7302 4197 7290 4197 7303 4210 7308

WTB

Local storm report, Sep 18, 7:21 PM EDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
721 PM EDT TUE SEP 18 2012

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

0406 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON BRADFORD STREET ALSO TREE DOWN
            ON HOUSE ON FORT STREET

0414 PM     NON-TSTM WND DMG CHESTERFIELD            42.40N  72.85W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            WIRES DOWN ON EAST STREET

0414 PM     NON-TSTM WND DMG BUCKLAND                42.60N  72.78W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            WIRES DOWN ON LABELLE ROAD

0519 PM     NON-TSTM WND DMG WARWICK                 42.68N  72.33W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WENDELL ROAD

0539 PM     NON-TSTM WND DMG NORTHFIELD              42.71N  72.44W
09/18/2012                   FRANKLIN           MA   AMATEUR RADIO

            TREE AND WIRES DOWN ON WARWICK ROAD

0553 PM     NON-TSTM WND DMG NEWTON                  42.33N  71.21W
09/18/2012                   MIDDLESEX          MA   AMATEUR RADIO

            TREE DOWN BLOCKING COUNTRY CLUB ROAD

0554 PM     NON-TSTM WND DMG WEST SPRINGFIELD        42.12N  72.65W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON SIKES AVE

0608 PM     NON-TSTM WND DMG AGAWAM                  42.07N  72.62W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON SCHOOL AND MONROE STREET

0625 PM     NON-TSTM WND DMG AUBURN                  42.20N  71.83W
09/18/2012                   WORCESTER          MA   AMATEUR RADIO

            TRE DOWN ON MASS PIKE WESTBOUND NEAR EXIT 10

0631 PM     NON-TSTM WND DMG TOLLAND                 42.08N  73.02W
09/18/2012                   HAMPDEN            MA   AMATEUR RADIO

            TREE DOWN ON RTE 57

0631 PM     NON-TSTM WND DMG GOSHEN                  42.43N  72.80W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON FULLER ROAD

0638 PM     NON-TSTM WND DMG PELHAM                  42.40N  72.40W
09/18/2012                   HAMPSHIRE          MA   AMATEUR RADIO

            TREE DOWN ON WIRES ON HARKNESS ROAD

0652 PM     NON-TSTM WND DMG NORTHAMPTON             42.33N  72.68W
09/18/2012                   HAMPSHIRE          MA   TRAINED SPOTTER

            TREE DOWN ON NORTH MAIN STREET

&&

WAS

Local storm report, Sep 18, 8:26 PM EDT, 26 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
Sep 18, 8:18 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire	57 min
Sep 18, 9:16 PM EDT	Severe Thunderstorm Warning	BOX	Franklin, Hampden, Hampshire, Middlesex, Worcester	59 min
Sep 18, 10:16 PM EDT	Severe Thunderstorm Warning	BOX	Hampden, Hampshire, Middlesex, Worcester	59 min
Sep 18, 10:34 PM EDT	Special Weather Statement	BOX	Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk	86 min
Sep 18, 11:16 PM EDT	Severe Thunderstorm Warning	BOX	Essex, Middlesex, Norfolk, Worcester	59 min
Sep 18, 11:27 PM EDT	Areal Flood Advisory	BOX	Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk and 1 more	6 hr
Sep 19, 12:27 AM EDT	Areal Flood Warning	BOX	Hampshire	80 min
Sep 19, 12:37 AM EDT	Special Marine Warning	BOX		83 min
Sep 19, 12:49 AM EDT	Special Weather Statement	BOX	Norfolk, Suffolk	56 min
Sep 19, 1:01 AM EDT	Special Marine Warning	BOX		59 min
Sep 19, 1:35 AM EDT	Special Marine Warning	BOX		85 min
Sep 19, 1:59 AM EDT	Special Marine Warning	BOX		61 min
Sep 19, 2:18 AM EDT	Special Weather Statement	BOX	Barnstable, Bristol, Plymouth	87 min
Sep 19, 4:07 AM EDT	High Surf Advisory	BOX	Dukes, Nantucket	12 hr
Sep 19, 5:50 AM EDT	Small Craft Advisory	BOX		22 hr

Nearby

Areal Flood Advisories in Massachusetts, 2012 Areal Flood Advisories in Connecticut, 2012 Every areal flood advisory in 2012

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.