Alert archive / Rhode Island / Flash Flood Warnings in 2014

Flash Flood Warning 24, NWS Boston/Norton, MA

July 16, 20145 counties in Rhode Island; Bristol County, Massachusetts

NWS Boston/Norton, MA issued this flash flood warning at Jul 16, 2014, 7:38 AM EDT for 5 counties in Rhode Island; Bristol County, Massachusetts. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 16, 2014, 7:38 AM EDT (11:38 UTC)
Expired: Jul 16, 2014, 10:30 AM EDT
In force: 3 hr
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Flood severity: None

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

The radar

The Boston radar (KBOX), 40 km from the middle of the area, began a volume at 11:40 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.

What was reported inside it

Time	Report	Where	Remark
Jul 16, 7:40 AM EDT	FLASH FLOOD	Jamestown, RI	FLOODING ON SEVERAL STREETS...JAMESTOWN SHORES...DOWNTOWN NARRAGANSETT AVE...SOUTHWST AVE ALONG THE SEAWALL...AND SHOREBY HILL.
Jul 16, 8:32 AM EDT	FLASH FLOOD	Warren, RI	ROUTE 136 FLOODED WITH AT LEAST ONE FOOT OF WATER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Chatham, MA (KCHH), launched 00:00Z, 11.6 hours before the alert went out and 115 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: 564 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 533 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 77 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.

397 
WGUS51 KBOX 161138
FFWBOX
MAC005-RIC001-003-005-007-009-161430-
/O.NEW.KBOX.FF.W.0024.140716T1138Z-140716T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
738 AM EDT WED JUL 16 2014

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS...
  KENT COUNTY IN RHODE ISLAND...
  WASHINGTON COUNTY IN RHODE ISLAND...
  NEWPORT COUNTY IN RHODE ISLAND...
  SOUTHEASTERN PROVIDENCE COUNTY IN RHODE ISLAND...
  BRISTOL COUNTY IN RHODE ISLAND...

* UNTIL 1030 AM EDT

* AT 735 AM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
  HEAVY RAIN ACROSS THE WARNED AREA AND EXTENDING TO THE SOUTHWEST 
  NEAR THE TWIN FORKS OF EASTERN LONG ISLAND. RADAR INDICATED 
  RAINFALL RATES OF 2 TO 3 INCHES PER HOUR MOVING TOWARDS THE 
  WARNED AREA. 
  
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PROVIDENCE...FALL RIVER...WARWICK...CRANSTON...PAWTUCKET...EAST
  PROVIDENCE...COVENTRY...DARTMOUTH...CUMBERLAND...NORTH
  PROVIDENCE...SOUTH KINGSTOWN...WEST WARWICK...JOHNSTON...NORTH
  KINGSTOWN...BRISTOL...ATTLEBORO...WESTERLY...SMITHFIELD...
  LINCOLN...CENTRAL FALLS...SOMERSET...BARRINGTON...NARRAGANSETT...
  SWANSEA...TIVERTON...WESTPORT...SEEKONK...EAST GREENWICH...REHOBOTH
  AND WARREN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RAPID AND POTENTIALLY LIFE THREATENING FLOODING OF STREETS AND
UNDERPASSES IS IMMINENT. DO NOT DRIVE THROUGH FLOODED ROADS AND FIND
ALTERNATE ROUTES.

A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADS AND OBEY
ROAD CLOSURES. THOSE NEAR SMALL STREAMS MUST HEAD FOR HIGHER GROUND
IMMEDIATELY.

&&

LAT...LON 4137 7182 4193 7158 4186 7108 4158 7093
      4152 7120 4171 7116 4172 7126 4158 7133
      4172 7129 4171 7130 4179 7137 4179 7138
      4160 7140 4160 7137 4158 7145 4157 7136
      4148 7136

$$

AED

1 follow-up statement

691 
WGUS71 KBOX 161228
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
828 AM EDT WED JUL 16 2014

MAC005-RIC001-003-005-007-009-161430-
/O.CON.KBOX.FF.W.0024.000000T0000Z-140716T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BRISTOL MA-KENT RI-WASHINGTON RI-NEWPORT RI-PROVIDENCE RI-BRISTOL RI-
828 AM EDT WED JUL 16 2014

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM EDT FOR
CENTRAL BRISTOL...KENT...WASHINGTON...NEWPORT...SOUTHEASTERN
PROVIDENCE AND BRISTOL COUNTIES...

AT 826 AM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY
RAIN ACROSS RHODE ISLAND AND SOUTHEAST MASSACHUSETTS.

SKYWARN AMATEUR RADIO OPERATORS REPORTED THE STAFFORD SQUARE AREA OF 
FALL RIVER WAS CLOSED DUE TO FLOODING AS OF 755 AM.

RAINFALL RATES AS HIGH AS 2 INCHES PER HOUR WILL CAUSE ADDITIONAL 
RAPID FLOODING OF STREETS...UNDERPASSES AND URBAN AREAS THIS 
MORNING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RAPID AND POTENTIALLY LIFE THREATENING FLOODING OF STREETS AND
UNDERPASSES IS IMMINENT. DO NOT DRIVE THROUGH FLOODED ROADS AND FIND
ALTERNATE ROUTES.

&&

LAT...LON 4137 7182 4193 7158 4186 7108 4158 7093
      4152 7120 4171 7116 4172 7126 4158 7133
      4172 7129 4171 7130 4179 7137 4179 7138
      4160 7140 4160 7137 4158 7145 4157 7136
      4148 7136

$$

JWD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 11:51 PM EDT	Flash Flood Warning	BOX	Newport	3 hr
Jul 16, 4:33 AM EDT	Special Weather Statement	BOX	Newport	57 min
Jul 16, 10:30 AM EDT	Flash Flood Warning	BOX	Newport	4 hr
Jul 15, 8:48 PM EDT	Special Weather Statement	BOX	Franklin	57 min
Jul 15, 9:56 PM EDT	Flash Flood Warning	BOX	Franklin	3 hr
Jul 15, 10:29 PM EDT	Special Weather Statement	BOX	Worcester	46 min
Jul 15, 11:14 PM EDT	Special Weather Statement	BOX	Middlesex	61 min
Jul 15, 11:49 PM EDT	Special Weather Statement	BOX	Bristol, Plymouth	56 min
Jul 16, 12:31 AM EDT	Special Weather Statement	BOX	Bristol, Plymouth	59 min
Jul 16, 12:55 AM EDT	Special Marine Warning	BOX		65 min
Jul 16, 4:44 AM EDT	Areal Flood Advisory	BOX	Barnstable, Bristol, Dukes, Plymouth	2 hr
Jul 16, 8:32 AM EDT	Flash Flood Warning	BOX	Bristol, Plymouth	118 min
Jul 16, 9:23 AM EDT	Special Weather Statement	BOX	Essex, Norfolk, Suffolk	52 min
Jul 16, 2:09 PM EDT	Special Weather Statement	BOX	Essex, Norfolk, Suffolk	81 min
Jul 16, 2:32 PM EDT	Flash Flood Warning	BOX	Essex, Middlesex	3 hr
Jul 16, 2:46 PM EDT	Special Weather Statement	BOX	Essex, Suffolk	59 min
Jul 16, 2:49 PM EDT	Flash Flood Warning	BOX	Essex, Middlesex, Suffolk	3 hr
Jul 16, 3:35 PM EDT	Small Craft Advisory for Hazardous Seas	BOX		24 hr

Nearby

Flash Flood Warnings in Rhode Island, 2014 Flash Flood Warnings in Massachusetts, 2014 Every flash flood warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.