Alert archive / Rhode Island / Special Weather Statements in 2016

Special Weather Statement, NWS Boston/Norton, MA

August 12, 2016Washington County, Rhode Island

NWS Boston/Norton, MA issued this special weather statement at Aug 12, 2016, 11:07 PM EDT for Washington County, Rhode Island. It was in force for 38 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: Aug 12, 2016, 11:07 PM EDT (03:07 UTC)
Expired: Aug 12, 2016, 11:45 PM EDT
In force: 38 min
Issued by: NWS Boston/Norton, MA

County Washington County, RI

The radar

The Boston radar (KBOX), 83 km from the middle of the area, began a volume at 03:09 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 00:00Z, 3.1 hours before the alert went out and 109 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: 2196 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 1126 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Aug 12, 10:20 PM EDT, 47 minutes earlier.

Area forecast discussion, Aug 12, 10:20 PM EDT, 47 minutes before

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Hazardous weather outlook, Aug 12, 7:10 PM EDT, 3 hours 57 minutes before

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In the hours before

Local storm report, Aug 12, 7:32 PM EDT, 3 hours 35 minutes before

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Special weather statement, Aug 12, 8:01 PM EDT, 3 hours 6 minutes before

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Special weather statement, Aug 12, 8:26 PM EDT, 2 hours 41 minutes before

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Special weather statement, Aug 12, 9:00 PM EDT, 2 hours 7 minutes before

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Local storm report, Aug 12, 9:01 PM EDT, 2 hours 6 minutes before

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Special weather statement, Aug 12, 11:07 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1107 PM EDT FRI AUG 12 2016

RIZ006-130345-
WASHINGTON RI-
1107 PM EDT FRI AUG 12 2016

...STRONG THUNDERSTORM IN WESTERN WASHINGTON COUNTY...

AT 1106 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR WESTERLY...OR 8 MILES EAST OF MYSTIC...MOVING EAST AT 35 MPH.

PEA SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL ACCOMPANY THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
SOUTH KINGSTOWN...WESTERLY...NARRAGANSETT...
HOPKINTON AND CHARLESTOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

THESE STORMS MAY INTENSITY AND BECOME CAPABLE OF PRODUCING DAMAGE.
STAY TUNED FOR UPDATED STATEMENTS AND POSSIBLE WARNINGS.

&&

LAT...LON 4133 7190 4132 7185 4134 7183 4141 7184
      4142 7180 4143 7179 4143 7146 4142 7145
      4136 7149 4138 7152 4133 7171 4133 7179
      4131 7185 4131 7188
TIME...MOT...LOC 0306Z 271DEG 29KT 4138 7182

DUNTEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 8:01 PM EDT	Special Weather Statement	BOX	Hampden, Hampshire	44 min
Aug 13, 4:31 AM EDT	Excessive Heat Warning	BOX	Hampden	14 hr
Aug 13, 1:32 PM EDT	Special Marine Warning	BOX		28 min
Aug 13, 1:37 PM EDT	Special Weather Statement	BOX	Hampden	38 min
Aug 13, 1:52 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	38 min
Aug 13, 2:24 PM EDT	Areal Flood Advisory	BOX	Hampden	66 min
Aug 13, 2:52 PM EDT	Severe Thunderstorm Warning	BOX	Hampden	23 min
Aug 13, 4:09 PM EDT	Heat Advisory	BOX	Barnstable, Bristol, Dukes, Essex, Hampden, Middlesex and 4 more	27 hr
Aug 13, 4:34 PM EDT	Areal Flood Advisory	BOX	Middlesex, Norfolk, Suffolk, Worcester	116 min
Aug 13, 5:46 PM EDT	Severe Thunderstorm Warning	BOX	Worcester	29 min
Aug 13, 6:38 PM EDT	Areal Flood Advisory	BOX	Norfolk, Worcester	52 min
Aug 12, 11:46 PM EDT	Special Weather Statement	BOX	Washington	44 min
Aug 13, 1:30 PM EDT	Severe Thunderstorm Warning	BOX	Bristol, Kent	30 min
Aug 13, 3:41 PM EDT	Severe Thunderstorm Warning	BOX	Providence	34 min
Aug 13, 5:04 PM EDT	Special Weather Statement	BOX	Providence	26 min
Aug 12, 8:26 PM EDT	Special Weather Statement	BOX		49 min
Aug 12, 9:00 PM EDT	Special Weather Statement	BOX		30 min

Nearby

Special Weather Statements in Rhode Island, 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.