Alert archive / Rhode Island / Special Weather Statements in 2016

Special Weather Statement, NWS Boston/Norton, MA

July 14, 2016Bristol County, Norfolk County, Massachusetts; Bristol County, Kent County, Washington County, Rhode Island

NWS Boston/Norton, MA issued this special weather statement at Jul 14, 2016, 11:40 AM EDT for Bristol County, Norfolk County, Massachusetts; Bristol County, Kent County, Washington County, Rhode Island. It was in force for 80 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 14, 2016, 11:40 AM EDT (15:40 UTC)
Expired: Jul 14, 2016, 1:00 PM EDT
In force: 80 min
Issued by: NWS Boston/Norton, MA

Counties Bristol County, MA, Norfolk County, MA, Bristol County, RI, Kent County, RI, Washington County, RI

The radar

The Boston radar (KBOX), 39 km from the middle of the area, began a volume at 15:40 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

Brookhaven, NY (KOKX), launched 12:00Z, 3.7 hours before the alert went out and 153 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: 468 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 545 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 103 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

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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 14, 10:08 AM EDT, 1 hour 32 minutes earlier.

Area forecast discussion, Jul 14, 10:08 AM EDT, 1 hour 32 minutes before

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Hazardous weather outlook, Jul 14, 4:16 AM EDT, 7 hours 24 minutes before

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In the hours before

Special weather statement, Jul 14, 10:14 AM EDT, 1 hour 26 minutes before

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Special weather statement, Jul 14, 11:40 AM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1140 AM EDT THU JUL 14 2016

MAZ013-017>021-RIZ001>007-141700-
SOUTHERN PLYMOUTH MA-NORTHERN BRISTOL MA-SOUTHERN BRISTOL MA-
WESTERN PLYMOUTH MA-EASTERN PLYMOUTH MA-WESTERN NORFOLK MA-
SOUTHEAST PROVIDENCE RI-BRISTOL RI-WASHINGTON RI-EASTERN KENT RI-
WESTERN KENT RI-NEWPORT RI-NORTHWEST PROVIDENCE RI-
1140 AM EDT THU JUL 14 2016

...TORRENTIAL DOWNPOURS WILL AFFECT PORTIONS OF RHODE ISLAND
AND SOUTHEAST MASSACHUSETTS THROUGH 1 PM...

AT 1134 AM EDT...DOPPLER RADAR WAS TRACKING AN EXPANDING AREA OF
SHOWERS AND POSSIBLE EMBEDDED THUNDERSTORMS OVER RICHMOND RHODE
ISLAND...MOVING NORTHEAST AT 40 MPH.

MINOR STREET FLOODING FROM TORRENTIAL RAINFALL WILL OCCUR ON ROADS
AND UNDERPASSES THAT ARE TYPICALLY PRONE TO FLOODING. THIS COULD
AFFECT PORTIONS OF INTERSTATE 95 AND 195 IN RHODE ISLAND AND
SOUTHEAST MASSACHUSETTS.

LOCATIONS IMPACTED INCLUDE...
PROVIDENCE...NEW BEDFORD...BROCKTON...FALL RIVER...WARWICK...
CRANSTON...TAUNTON...CUMBERLAND...AND NORTH ATTLEBOROUGH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE THROUGH FLOODED ROADS OR UNDERPASSES. AVOID LOW LYING
AREAS NEAR SMALL STREAMS.

&&

LAT...LON 4145 7180 4222 7124 4182 7054 4155 7121
      4163 7122 4150 7133 4171 7116 4172 7126
      4158 7133 4171 7129 4179 7137 4179 7138
      4160 7140 4160 7137 4158 7145 4157 7136
      4149 7136 4137 7167
TIME...MOT...LOC 1534Z 217DEG 36KT 4147 7167

THOMPSON

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 14, 3:23 AM EDT	Small Craft Advisory	BOX		24 hr
Jul 14, 1:05 PM EDT	Special Weather Statement	BOX	Bristol, Norfolk	55 min
Jul 14, 2:22 PM EDT	Special Weather Statement	BOX	Plymouth	53 min
Jul 14, 5:38 PM EDT	Special Weather Statement	BOX	Hampden	37 min
Jul 14, 6:00 PM EDT	Special Weather Statement	BOX	Franklin	30 min
Jul 14, 6:34 PM EDT	Special Weather Statement	BOX	Hampden	26 min
Jul 14, 6:55 PM EDT	Special Weather Statement	BOX	Worcester	35 min
Jul 14, 7:09 PM EDT	Special Weather Statement	BOX	Worcester	36 min
Jul 14, 7:40 PM EDT	Special Weather Statement	BOX	Middlesex	50 min
Jul 14, 7:45 PM EDT	Special Weather Statement	BOX	Worcester	30 min
Jul 14, 6:08 PM EDT	Special Weather Statement	BOX		37 min

Nearby

Special Weather Statements in Rhode Island, 2016 Special Weather Statements in Massachusetts, 2016 Every special weather statement in 2016

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.