Alert archive / Rhode Island / Flash Flood Warnings in 2016

Flash Flood Warning 3, NWS Boston/Norton, MA

August 12, 2016Kent County, Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this flash flood warning at Aug 12, 2016, 6:15 PM EDT for Kent County, Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut. It was in force for 3 hr. 7 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
Aug 12, 2016, 6:15 PM EDT (22:15 UTC)
Expired
Aug 12, 2016, 9:15 PM EDT
In force
3 hr
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Flood severity
None

Counties Northeastern Connecticut Planning Region, CT, Kent County, RI, Providence County, RI

The radar

The Boston radar (KBOX), 67 km from the middle of the area, began a volume at 22:17 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

TimeReportWhereRemark
Aug 12, 6:32 PM EDTFLOODScituate, RISEVEN MILE ROAD FLOODED
Aug 12, 6:45 PM EDTFLOODCoventry, RIOVER 6 INCHES OF STREET FLOODING...CAR STUCK IN FLOOD WATERS ON WASHINGTON STREET AT LAUREL AVENUE
Aug 12, 6:50 PM EDTFLOODKillingly, CTMECHANIC STREET AT WESTFIELD AVENUE FLOODED AND IMPASSABLE
Aug 12, 6:50 PM EDTFLOODKillingly, CTTWO CARS STUCK IN FLOOD WATERS AT I-695/395 NEAR ROUTE 6...AREA IMPASSABLE
Aug 12, 7:00 PM EDTFLOODDanielson, CTAPARTMENT COMPLEX FLOODED ON COTTAGE STREET... FAMILIES EVACUATED
Aug 12, 7:11 PM EDTFLOODPomfret, CTFIVE CARS STUCK IN FLOOD WATERS ON WEST ROAD/ROUTE 97
Aug 12, 7:21 PM EDTFLOODSouth Killingly, CTI395 CONNECTOR FROM ROUTE 6 ON THE RI/CT BORDER CLOSED DUE TO FLOODING...SEVERAL CARS STUCK ON THE CONNECTOR DUE TO CLOSURE

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.3 hours before the alert went out and 130 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, Brookhaven, NY at 12:00Z on 2016-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1049 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, Brookhaven, NY at 12:00Z on 2016-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.1939Sfc1 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
1049 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
724 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

As transmitted.

323 
WGUS51 KBOX 122215
FFWBOX
CTC015-RIC003-007-130115-
/O.NEW.KBOX.FF.W.0003.160812T2215Z-160813T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
615 PM EDT FRI AUG 12 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL WINDHAM COUNTY IN NORTHERN CONNECTICUT...
  CENTRAL KENT COUNTY IN RHODE ISLAND...
  SOUTHERN PROVIDENCE COUNTY IN RHODE ISLAND...

* UNTIL 915 PM EDT

* AT 615 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PROVIDENCE...WARWICK...CRANSTON...COVENTRY...NORTH PROVIDENCE...
  WEST WARWICK...JOHNSTON...PLAINFIELD...KILLINGLY...
  EAST GREENWICH...SCITUATE...GLOCESTER...PUTNAM...BROOKLYN...
  WOODSTOCK...CANTERBURY...FOSTER...ASHFORD...POMFRET AND STERLING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4176 7216 4181 7216 4194 7209 4184 7143
      4165 7149

$$
FIELD
2 follow-up statements
407 
WGUS71 KBOX 122253
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
653 PM EDT FRI AUG 12 2016

CTC015-RIC003-007-130115-
/O.CON.KBOX.FF.W.0003.000000T0000Z-160813T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINDHAM CT-KENT RI-PROVIDENCE RI-
653 PM EDT FRI AUG 12 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR
CENTRAL WINDHAM...CENTRAL KENT AND SOUTHERN PROVIDENCE COUNTIES...

AT 646 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. WE HAVE RECEIVED RELIABLE REPORTS
OF 3.38 INCHES OF RAIN IN 60 MINUTES IN DAYVILLE, CONNECTICUT AND A
TOTAL OF 3.75 INCHES OF RAIN IN POMFRET, CONNECTICUT.
DOPPLER RADAR SHOWS THE HARDEST HIT AREAS FROM KILLINGLY EASTWARD TO
FOSTER, RHODE ISLAND. 

THE HEAVY RAIN AREA WAS BEGINNING TO MOVE EASTWARD BUT ANOTHER 1 TO
2 INCHES IS POSSIBLE, PARTICULARLY IN THE FOSTER AREA. THIS IS A
SERIOUS SITUATION. DO NOT ATTEMPT TO DRIVE THROUGH FLOODED ROADWAYS. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PROVIDENCE...WARWICK...CRANSTON...COVENTRY...NORTH PROVIDENCE...
WEST WARWICK...JOHNSTON...PLAINFIELD...KILLINGLY...EAST GREENWICH...
SCITUATE...GLOCESTER...PUTNAM...BROOKLYN...WOODSTOCK...CANTERBURY...
FOSTER...ASHFORD...POMFRET AND STERLING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4176 7216 4181 7216 4194 7209 4184 7143
      4165 7149

$$
FIELD
204 
WGUS71 KBOX 130032
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
832 PM EDT FRI AUG 12 2016

CTC015-RIC003-007-130115-
/O.CON.KBOX.FF.W.0003.000000T0000Z-160813T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINDHAM CT-KENT RI-PROVIDENCE RI-
832 PM EDT FRI AUG 12 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM EDT FOR
CENTRAL WINDHAM...CENTRAL KENT AND SOUTHERN PROVIDENCE COUNTIES...

AT 828 PM EDT...ALL RAIN HAD EXITED THE FLASH FLOOD WARNING
AREA...BUT 3 TO 4 INCHES OF RAIN FELL FROM KILLINGLY TO FOSTER AND
WATER WAS STILL PONDING ON ROADWAYS.  DOPPLER RADAR SHOWED A NEW
AREA OF THUNDERSTORMS IN HARTFORD COUNTY THAT COULD MOVE INTO THE
WARNING AREA AROUND OR SHORTLY AFTER 9 PM.

SOME LOCATIONS THAT MAY EXPERIENCE ADDITIONAL FLOODING INCLUDE...
PUTNAM...BROOKLYN...WOODSTOCK...CANTERBURY...FOSTER...ASHFORD...
POMFRET AND STERLING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE PRECAUTIONS TO
PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4176 7216 4181 7216 4194 7209 4184 7143
      4165 7149

$$
FIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 3:22 PM EDTSevere Thunderstorm WarningBOXProvidence53 min
Aug 12, 4:14 PM EDTSpecial Weather StatementBOXProvidence46 min
Aug 12, 4:28 PM EDTSevere Thunderstorm WarningBOXProvidence47 min
Aug 12, 4:58 PM EDTSpecial Weather StatementBOXProvidence47 min
Aug 12, 5:07 PM EDTSpecial Weather StatementBOXProvidence53 min
Aug 12, 5:18 PM EDTSevere Thunderstorm WarningBOXBristol, Kent, Providence42 min
Aug 12, 5:27 PM EDTAreal Flood AdvisoryBOXKent, Providence2 hr
Aug 12, 5:36 PM EDTSpecial Weather StatementBOXKent39 min
Aug 12, 5:43 PM EDTAreal Flood WarningBOXKent, Providence2 hr
Aug 12, 5:51 PM EDTSevere Thunderstorm WarningBOXBristol, Kent, Providence54 min
Aug 12, 6:43 PM EDTSpecial Weather StatementBOXBristol, Kent47 min
Aug 12, 7:01 PM EDTSpecial Weather StatementBOXKent, Newport44 min
Aug 12, 7:06 PM EDTHeat AdvisoryBOXKent, Providence24 hr
Aug 11, 8:30 PM EDTSpecial Weather StatementBOX45 min
Aug 11, 8:41 PM EDTAreal Flood AdvisoryBOXCapitol Planning Region64 min
Aug 12, 2:22 PM EDTExcessive Heat WarningBOXCapitol Planning Region, Northeastern Connecticut Planning Region5 hr
Aug 12, 6:11 PM EDTSevere Thunderstorm WarningBOXNortheastern Connecticut Planning Region49 min

Nearby

Flash Flood Warnings in Rhode Island, 2016Flash Flood Warnings in Connecticut, 2016Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.