Alert archive / Massachusetts / Special Weather Statements in 2013

Special Weather Statement, NWS Boston/Norton, MA

July 23, 2013Suffolk County, Massachusetts

NWS Boston/Norton, MA issued this special weather statement at Jul 23, 2013, 4:20 PM EDT for Suffolk County, Massachusetts. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 23, 2013, 4:20 PM EDT (20:20 UTC)
Expired: Jul 23, 2013, 5:00 PM EDT
In force: 40 min
Issued by: NWS Boston/Norton, MA

County Suffolk County, MA

The radar

The Boston radar (KBOX), 41 km from the middle of the area, began a volume at 20:22 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 12:00Z, 8.3 hours before the alert went out and 111 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: 757 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 498 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 23, 3:55 PM EDT, 25 minutes earlier.

Area forecast discussion, Jul 23, 3:55 PM EDT, 25 minutes before

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Hazardous weather outlook, Jul 23, 4:08 PM EDT, 12 minutes before

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In the hours before

Local storm report, Jul 23, 2:35 PM EDT, 1 hour 45 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
235 PM EDT TUE JUL 23 2013

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

0300 AM     FLASH FLOOD      DEERFIELD               42.55N  72.60W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            CARS FLOODED OUT IN THE PARKING LOT OF THE DEERFIELD
            ACADEMY CENTER

0640 AM     FLASH FLOOD      MONTAGUE                42.53N  72.53W
07/23/2013                   FRANKLIN           MA   LAW ENFORCEMENT

            MONTAGUE CITY ROAD CLOSED DUE TO FLOODING OVER ROADWAY.

0730 AM     FLASH FLOOD      ERVING                  42.60N  72.40W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            BRIGGS BROOK OUT OF ITS BANKS AND FLOODING THE FARLEY
            ROAD AND FARLEY RIDGE AREA ON THE ERVING AND MILLERS
            FALLS TOWN LINE.

0115 PM     LIGHTNING        BELLINGHAM              42.09N  71.47W
07/23/2013                   NORFOLK            MA   AMATEUR RADIO

            HOUSE STRUCK BY LIGHTNING ON FARM RD DAMAGE TO BACK OF
            HOUSE

&&

123

Local storm report, Jul 23, 2:36 PM EDT, 1 hour 44 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
236 PM EDT TUE JUL 23 2013

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

0300 AM     FLASH FLOOD      DEERFIELD               42.55N  72.60W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            CARS FLOODED OUT IN THE PARKING LOT OF THE DEERFIELD
            ACADEMY CENTER

0640 AM     FLASH FLOOD      MONTAGUE                42.53N  72.53W
07/23/2013                   FRANKLIN           MA   LAW ENFORCEMENT

            MONTAGUE CITY ROAD CLOSED DUE TO FLOODING OVER ROADWAY.

0730 AM     FLASH FLOOD      ERVING                  42.60N  72.40W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            BRIGGS BROOK OUT OF ITS BANKS AND FLOODING THE FARLEY
            ROAD AND FARLEY RIDGE AREA ON THE ERVING AND MILLERS
            FALLS TOWN LINE.

0115 PM     LIGHTNING        BELLINGHAM              42.09N  71.47W
07/23/2013                   NORFOLK            MA   AMATEUR RADIO

            HOUSE STRUCK BY LIGHTNING ON FARM RD DAMAGE TO BACK OF
            HOUSE

&&

123

Local storm report, Jul 23, 2:38 PM EDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TAUNTON MA
238 PM EDT TUE JUL 23 2013

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

0300 AM     FLASH FLOOD      DEERFIELD               42.55N  72.60W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            CARS FLOODED OUT IN THE PARKING LOT OF THE DEERFIELD
            ACADEMY CENTER

0640 AM     FLASH FLOOD      MONTAGUE                42.53N  72.53W
07/23/2013                   FRANKLIN           MA   LAW ENFORCEMENT

            MONTAGUE CITY ROAD CLOSED DUE TO FLOODING OVER ROADWAY.

0730 AM     FLASH FLOOD      ERVING                  42.60N  72.40W
07/23/2013                   FRANKLIN           MA   AMATEUR RADIO

            BRIGGS BROOK OUT OF ITS BANKS AND FLOODING THE FARLEY
            ROAD AND FARLEY RIDGE AREA ON THE ERVING AND MILLERS
            FALLS TOWN LINE.

1230 PM     FLASH FLOOD      SHREWSBURY              42.30N  71.72W
07/23/2013                   WORCESTER          MA   AMATEUR RADIO

            WEST BOUND LANE ON RTE 9 CLOSED DUE TO FLOODING

0115 PM     LIGHTNING        BELLINGHAM              42.09N  71.47W
07/23/2013                   NORFOLK            MA   AMATEUR RADIO

            HOUSE STRUCK BY LIGHTNING ON FARM RD DAMAGE TO BACK OF
            HOUSE

0115 PM     FLASH FLOOD      CAMBRIDGE               42.38N  71.12W
07/23/2013                   MIDDLESEX          MA   AMATEUR RADIO

            MAIN ST CLOSED DUE TO FLOODING

0137 PM     FLASH FLOOD      BOSTON                  42.32N  71.07W
07/23/2013                   SUFFOLK            MA   AMATEUR RADIO

            COLUMBIA RD AT HAMIILTON RD NEAR UNDERPASS 3 FEET OF
            WATER. ROAD CLOSED

&&

123

Special weather statement, Jul 23, 2:56 PM EDT, 1 hour 24 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
256 PM EDT TUE JUL 23 2013

MAZ004>007-011-012-014-026-NHZ012-232000-
SOUTHEAST MIDDLESEX MA-NORTHWEST MIDDLESEX COUNTY MA-
CENTRAL MIDDLESEX COUNTY MA-NORTHERN WORCESTER MA-EASTERN HAMPDEN MA-
SOUTHERN WORCESTER MA-EASTERN ESSEX MA-WESTERN ESSEX MA-
EASTERN HILLSBOROUGH NH-
256 PM EDT TUE JUL 23 2013

...STRONG THUNDERSTORMS HEADING THROUGH CENTRAL MASSACHUSETTS...

AT 251 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A LINE OF STRONG THUNDERSTORMS FROM NASHUA TO WEST BOYLSTON TO
WILBRAHAM...MOVING EAST AT 45 MPH.

TORRENTIAL RAINFALL AND WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH
THESE STORMS AS THEY HEAD INTO EASTERN MASSACHUSETTS THROUGH 4 PM.

THOSE WITH OUTDOOR PLANS SHOULD HEAD INSIDE AT THE FIRST SIGN OF
THREATENING WEATHER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GET INDOORS WHEN THESE STORMS APPROACH. WINDS MAY BE STRONG ENOUGH TO
PRODUCE MINOR DAMAGE...SUCH AS DOWNED BRANCHES.

MINOR URBAN AND POOR DRAINAGE FLOODING CAN BE EXPECTED. DO NOT DRIVE
THROUGH FLOODED ROADS.

&&

LAT...LON 4287 7082 4282 7081 4281 7087 4281 7081
      4270 7078 4271 7078 4276 7081 4275 7083
      4270 7083 4266 7071 4210 7166 4207 7253
      4239 7187 4281 7147 4283 7139 4277 7135
      4274 7119 4281 7116 4281 7107 4289 7093
TIME...MOT...LOC 1851Z 248DEG 51KT 4272 7147 4241 7183 4213 7245

JWD

Special weather statement, Jul 23, 3:34 PM EDT, 46 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
334 PM EDT TUE JUL 23 2013

MAZ005>007-014-015-232030-
SUFFOLK MA-SOUTHEAST MIDDLESEX MA-CENTRAL MIDDLESEX COUNTY MA-
EASTERN ESSEX MA-WESTERN ESSEX MA-
334 PM EDT TUE JUL 23 2013

...STRONG THUNDERSTORMS IN NORTHEAST MASSACHUSETTS...

AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM LOWELL TO
MAYNARD...MOVING EAST AT 25 MPH.

TORRENTIAL RAINFALL AND WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
LOWELL...CAMBRIDGE...LYNN...SOMERVILLE...WALTHAM...BEVERLY...
DRACUT...LINCOLN...WESTON...MALDEN...MEDFORD...PEABODY...REVERE...
ARLINGTON...HAMILTON...WENHAM...EVERETT...WOBURN...CHELSEA AND
WATERTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GET INDOORS WHEN THESE STORMS APPROACH. WINDS MAY BE STRONG ENOUGH TO
PRODUCE MINOR DAMAGE...SUCH AS DOWNED BRANCHES.

MINOR URBAN AND POOR DRAINAGE FLOODING CAN BE EXPECTED. DO NOT DRIVE
THROUGH FLOODED ROADS.

&&

LAT...LON 4268 7075 4255 7082 4253 7090 4254 7087
      4250 7089 4252 7085 4249 7086 4246 7094
      4242 7090 4242 7091 4245 7093 4242 7099
      4234 7096 4239 7104 4239 7107 4234 7101
      4239 7154 4269 7137
TIME...MOT...LOC 1930Z 271DEG 23KT 4266 7134 4242 7146

JWD

Special weather statement, Jul 23, 4:20 PM EDT, 0 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 22, 10:31 PM EDT	Areal Flood Advisory	BOX	Franklin, Hampshire	3 hr
Jul 23, 1:14 AM EDT	Flash Flood Warning	BOX	Franklin, Hampshire	2 hr
Jul 23, 4:12 AM EDT	Flash Flood Watch	BOX	Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more	15 hr
Jul 23, 5:40 AM EDT	Areal Flood Advisory	BOX	Franklin, Hampshire	3 hr
Jul 23, 6:15 AM EDT	Flash Flood Warning	BOX	Franklin	2 hr
Jul 23, 6:47 AM EDT	Areal Flood Advisory	BOX	Franklin, Worcester	3 hr
Jul 23, 10:22 AM EDT	Areal Flood Advisory	BOX	Franklin, Hampden, Hampshire, Worcester	113 min
Jul 23, 11:37 AM EDT	Areal Flood Advisory	BOX	Middlesex, Worcester	113 min
Jul 23, 12:43 PM EDT	Areal Flood Advisory	BOX	Essex, Middlesex, Norfolk, Plymouth, Suffolk	2 hr
Jul 23, 12:52 PM EDT	Special Weather Statement	BOX	Essex	38 min
Jul 23, 12:56 PM EDT	Flash Flood Warning	BOX	Middlesex, Norfolk, Suffolk	2 hr
Jul 23, 1:12 PM EDT	Flash Flood Warning	BOX	Middlesex, Norfolk	2 hr
Jul 23, 1:25 PM EDT	Severe Thunderstorm Warning	BOX	Norfolk, Suffolk	65 min
Jul 23, 1:26 PM EDT	Areal Flood Advisory	BOX	Essex, Norfolk, Plymouth, Suffolk	2 hr
Jul 23, 1:36 PM EDT	Special Marine Warning	BOX		54 min
Jul 23, 1:40 PM EDT	Special Weather Statement	BOX	Essex	50 min
Jul 23, 2:31 PM EDT	Areal Flood Advisory	BOX	Hampden, Hampshire, Worcester	119 min
Jul 23, 2:56 PM EDT	Special Weather Statement	BOX	Essex, Middlesex, Worcester	64 min
Jul 23, 3:13 PM EDT	Areal Flood Advisory	BOX	Essex, Middlesex, Worcester	2 hr
Jul 23, 3:34 PM EDT	Special Weather Statement	BOX	Essex, Middlesex	56 min
Jul 23, 3:38 PM EDT	Severe Thunderstorm Warning	BOX	Essex, Middlesex, Suffolk	52 min
Jul 23, 3:45 PM EDT	Special Marine Warning	BOX		90 min
Jul 23, 3:58 PM EDT	Areal Flood Advisory	BOX	Essex, Middlesex	2 hr
Jul 23, 4:15 PM EDT	Areal Flood Advisory	BOX	Essex, Middlesex, Norfolk, Plymouth, Suffolk, Worcester	2 hr
Jul 23, 4:40 PM EDT	Flash Flood Warning	BOX	Essex, Middlesex, Norfolk, Suffolk	2 hr
Jul 23, 5:00 PM EDT	Flash Flood Warning	BOX	Bristol, Middlesex, Norfolk, Plymouth, Suffolk, Worcester	2 hr
Jul 23, 5:10 PM EDT	Special Weather Statement	BOX	Bristol	50 min
Jul 23, 5:45 PM EDT	Flash Flood Warning	BOX	Providence	90 min
Jul 23, 5:32 AM EDT	Areal Flood Advisory	BOX	Capitol Planning Region	3 hr
Jul 23, 7:03 AM EDT	Areal Flood Advisory	BOX	Northeastern Connecticut Planning Region	117 min
Jul 23, 3:05 AM EDT	Areal Flood Advisory	BOX	Cheshire, Hillsborough	3 hr

Nearby

Special Weather Statements in Massachusetts, 2013 Every special weather statement in 2013

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.