Alert archive / Rhode Island / Special Weather Statements in 2011

Special Weather Statement, NWS Boston/Norton, MA

August 25, 2011Kent County, Providence County, Rhode Island

NWS Boston/Norton, MA issued this special weather statement at Aug 25, 2011, 10:25 PM EDT for Kent County, Providence County, Rhode Island. It was in force for 35 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 25, 2011, 10:25 PM EDT (02:25 UTC)
Expired
Aug 25, 2011, 11:00 PM EDT
In force
35 min
Issued by
NWS Boston/Norton, MA

Counties Kent County, RI, Providence County, RI

The radar

The Boston radar (KBOX), 28 km from the middle of the area, began a volume at 02:28 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, 2.4 hours before the alert went out and 119 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 2011-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1351 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Chatham, MA at 00:00Z on 2011-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 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
1351 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
578 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

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 Aug 25, 7:26 PM EDT, 2 hours 59 minutes earlier.

Area forecast discussion, Aug 25, 7:26 PM EDT, 2 hours 59 minutes before
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Hazardous weather outlook, Aug 25, 5:02 PM EDT, 5 hours 23 minutes before
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In the hours before

Special weather statement, Aug 25, 7:55 PM EDT, 2 hours 30 minutes before
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Special weather statement, Aug 25, 9:00 PM EDT, 1 hour 25 minutes before
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Special weather statement, Aug 25, 9:36 PM EDT, 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
936 PM EDT THU AUG 25 2011

MAZ004-010>012-260230-
EASTERN HAMPDEN MA-EASTERN HAMPSHIRE MA-NORTHERN WORCESTER
MA-SOUTHERN WORCESTER MA-
936 PM EDT THU AUG 25 2011

AT 933 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM PRODUCING FREQUENT LIGHTNING 2 MILES SOUTH OF
CHICOPEE...MOVING EAST AT 25 MPH.

* SOME LOCATIONS AFFECTED INCLUDE...SPRINGFIELD...EAST LONGMEADOW...
  LUDLOW...WILBRAHAM...HAMPDEN...PALMER...MONSON...WALES...WARREN...
  BRIMFIELD...WEST BROOKFIELD...HOLLAND AND BROOKFIELD.

FOR YOUR SAFETY...GET INSIDE WHEN THIS STORM APPROACHES. WINDS MAY BE
STRONG ENOUGH TO BRING DOWN SMALL BRANCHES. MINOR STREET FLOODING AND
PONDING OF WATER IN POOR DRAINAGE AREAS IS ALSO POSSIBLE.

HEAVY RAIN MAY CAUSE MINOR STREET FLOODING AND PONDING OF WATER IN
LOW LYING AREAS SUCH AS UNDERPASSES. DO NOT DRIVE THROUGH FLOODED
ROADS.

&&

LAT...LON 4224 7210 4204 7210 4206 7268 4224 7266

DOODY
Special weather statement, Aug 25, 10:25 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1025 PM EDT THU AUG 25 2011

MAZ013-017-020-RIZ001>005-260300-
BRISTOL RI-EASTERN KENT RI-NORTHERN BRISTOL MA-NORTHWEST PROVIDENCE
RI-SOUTHEAST PROVIDENCE RI-SOUTHERN BRISTOL MA-WESTERN KENT
RI-WESTERN NORFOLK MA-
1025 PM EDT THU AUG 25 2011

AT 1024 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH 2 MILES
WEST OF CRANSTON...OR ABOUT 6 MILES SOUTHWEST OF PROVIDENCE...MOVING
NORTHEAST AT 65 MPH.

* SOME LOCATIONS AFFECTED INCLUDE...SMITHFIELD...JOHNSTON...NORTH
  PROVIDENCE...PROVIDENCE...LINCOLN...EAST PROVIDENCE...CENTRAL
FALLS...PAWTUCKET...SEEKONK...REHOBOTH...ATTLEBOROUGH...NORTH
ATTLEBOROUGH.

FOR YOUR SAFETY...GET INSIDE WHEN THIS STORM APPROACHES. WINDS MAY BE
STRONG ENOUGH TO BRING DOWN SMALL BRANCHES. MINOR STREET FLOODING AND
PONDING OF WATER IN POOR DRAINAGE AREAS IS ALSO POSSIBLE.

HEAVY RAIN MAY CAUSE MINOR STREET FLOODING AND PONDING OF WATER IN
LOW LYING AREAS SUCH AS UNDERPASSES. DO NOT DRIVE THROUGH FLOODED
ROADS.

&&

LAT...LON 4166 7157 4182 7169 4210 7120 4185 7101
      4173 7135 4174 7137 4172 7137

DOODY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 9:00 PM EDTSpecial Weather StatementBOXHampden60 min
Aug 25, 9:16 PM EDTAreal Flood AdvisoryBOXFranklin, Hampden, Hampshire93 min
Aug 25, 9:36 PM EDTSpecial Weather StatementBOXHampden54 min
Aug 26, 12:58 AM EDTSpecial Marine WarningBOX62 min
Aug 26, 3:10 AM EDTFlood WatchBOXBristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more63 hr
Aug 26, 5:10 AM EDTHurricane WatchBOXBarnstable, Bristol, Dukes, Essex, Nantucket, Norfolk and 2 more12 hr
Aug 26, 5:10 AM EDTTropical Storm WatchBOXBristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 3 more30 hr
Aug 26, 5:33 PM EDTHurricane WarningBOXBarnstable, Bristol, Dukes, Nantucket, Plymouth42 hr
Aug 26, 5:33 PM EDTTropical Storm WarningBOXBarnstable, Bristol, Dukes, Essex, Franklin, Hampden and 7 more54 hr

Nearby

Special Weather Statements in Rhode Island, 2011Every special weather statement in 2011

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.