Alert archive / Rhode Island / Special Weather Statements in 2013

Special Weather Statement, NWS Boston/Norton, MA

May 24, 2013Bristol County, Massachusetts; Bristol County, Kent County, Providence County, Rhode Island

NWS Boston/Norton, MA issued this special weather statement at May 24, 2013, 2:21 AM EDT for Bristol County, Massachusetts; Bristol County, Kent County, Providence County, Rhode Island. It was in force for 84 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
May 24, 2013, 2:21 AM EDT (06:21 UTC)
Expired
May 24, 2013, 3:45 AM EDT
In force
84 min
Issued by
NWS Boston/Norton, MA

Counties Bristol County, MA, Bristol County, RI, Kent County, RI, Providence County, RI

The radar

The Boston radar (KBOX), 41 km from the middle of the area, began a volume at 06:25 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 00:00Z, 6.4 hours before the alert went out and 113 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-pSkew-T log-p diagram, Chatham, MA at 00:00Z on 2013-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 527 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 00:00Z on 2013-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
527 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
491 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

853 
WWUS81 KBOX 240621
SPSBOX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
221 AM EDT FRI MAY 24 2013
 
MAZ017-020-RIZ001>007-240745-
NORTHERN BRISTOL MA-SOUTHERN BRISTOL MA-WASHINGTON RI-
WESTERN KENT RI-NORTHWEST PROVIDENCE RI-BRISTOL RI-EASTERN KENT RI-
SOUTHEAST PROVIDENCE RI-NEWPORT RI-
221 AM EDT FRI MAY 24 2013

...HEAVY RAIN DURING THE EARLY MORNING HOURS ACROSS RHODE ISLAND AND 
SOUTHEAST MASSACHUSETTS...

AT 210 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DEPICTED A 
SERIES OF HEAVY RAIN BANDS MOVING TOWARD RHODE ISLAND AND SOUTHEAST 
MASSACHUSETTS. LOCALIZED STREET FLOODING WILL OCCUR. THESE BANDS 
COULD PRODUCE UP TO AN INCH OF RAIN OVER THE COURSE OF AN HOUR. A 
FLASH FLOOD WATCH REMAINS IN EFFECT FOR THIS AREA. FLASH FLOODING 
CAN DEVELOP VERY RAPIDLY IN URBAN AREAS DUE TO THE FAST RUNOFF OF 
RAIN WATER.

LOCATIONS WITH A RISK OF FLASH FLOODING DURING THE EARLY MORNING 
HOURS INCLUDE...PROVIDENCE...FALL RIVER...WARWICK...ATTLEBOROUGH... 
CRANSTON...AND NEW BEDFORD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GET INDOORS WHEN THIS STORM APPROACHES. WINDS MAY BE STRONG ENOUGH TO
PRODUCE MINOR DAMAGE...SUCH AS DOWNED BRANCHES. MINOR URBAN AND POOR
DRAINAGE FLOODING IS ALSO POSSIBLE.

&&

LAT...LON 4138 7175 4199 7178 4198 7124 4164 7092
      4155 7094 4156 7107 4147 7119 4155 7122
      4145 7135 4171 7116 4172 7126 4158 7133
      4172 7129 4179 7137 4160 7140 4160 7137
      4158 7145 4149 7133
TIME...MOT...LOC 0607Z 196DEG 36KT 4162 7151 

$$

THOMPSON

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 9:32 PM EDTAreal Flood AdvisoryBOXFranklin, Hampden, Hampshire, Worcester3 hr
May 23, 9:41 PM EDTFlash Flood WatchBOXBristol, Franklin, Hampden, Hampshire, Middlesex, Norfolk and 3 more12 hr
May 24, 12:43 AM EDTSpecial Weather StatementBOXBarnstable47 min
May 24, 3:36 AM EDTFlash Flood WarningBOXMiddlesex, Worcester3 hr
May 24, 4:02 AM EDTGale WatchBOX24 hr
May 24, 5:31 AM EDTWind AdvisoryBOXBarnstable, Dukes, Nantucket3 hr
May 24, 5:54 AM EDTGale WarningBOX4 hr
May 24, 6:02 AM EDTRip Current StatementBOXBristol11 hr
May 24, 4:28 PM EDTSpecial Weather StatementBOXEssex, Norfolk, Suffolk62 min
May 24, 2:49 AM EDTSpecial Weather StatementBOXHillsborough56 min

Nearby

Special Weather Statements in Rhode Island, 2013Special Weather Statements in Massachusetts, 2013Every 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.