Alert archive / Rhode Island / Flash Flood Warnings in 2016

Flash Flood Warning 1, NWS Boston/Norton, MA

July 7, 2016Providence County, Rhode Island

NWS Boston/Norton, MA issued this flash flood warning at Jul 7, 2016, 1:23 PM EDT for Providence County, Rhode Island. It was in force for 112 min. 1 report 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 7, 2016, 1:23 PM EDT (17:23 UTC)
Expired
Jul 7, 2016, 3:15 PM EDT
In force
112 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Flood severity
None

County Providence County, RI

The radar

The Boston radar (KBOX), 38 km from the middle of the area, began a volume at 17:24 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
Jul 7, 2:45 PM EDTFLOODScituate, RIRTE 116 CLOSED DUE TO FLOODING

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 12:00Z, 5.4 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, Chatham, MA at 12:00Z on 2016-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 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 12:00Z on 2016-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
21 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
1358 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
-2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

475 
WGUS51 KBOX 071723
FFWBOX
RIC007-071915-
/O.NEW.KBOX.FF.W.0001.160707T1723Z-160707T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
123 PM EDT THU JUL 7 2016

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN PROVIDENCE COUNTY IN RHODE ISLAND...

* UNTIL 315 PM EDT

* AT 122 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS EXPECTED TO
  BEGIN SHORTLY, PARTICULARLY ACROSS CRANSTON AND PROVIDENCE.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PROVIDENCE...CRANSTON...PAWTUCKET...NORTH PROVIDENCE...JOHNSTON...
  SMITHFIELD...LINCOLN AND SCITUATE.

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 4173 7166 4185 7169 4188 7142 4177 7140
      4176 7144 4174 7145

$$

RLG
2 follow-up statements
312 
WGUS71 KBOX 071828
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
228 PM EDT THU JUL 7 2016

RIC007-071915-
/O.CON.KBOX.FF.W.0001.000000T0000Z-160707T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PROVIDENCE RI-
228 PM EDT THU JUL 7 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
SOUTHEASTERN PROVIDENCE COUNTY...

AT 227 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY
RAIN ACROSS THE WARNED AREA.  FLASH FLOODING IS EXPECTED TO BEGIN
SHORTLY.  THIS THUNDERSTORM IS MOVING VERY VERY SLOWLY AND RADAR
INDICATES 2 TO 2.5 INCHES OF RAIN PER HOUR IS FALLING WITH THIS
STORM.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PROVIDENCE...CRANSTON...JOHNSTON AND SCITUATE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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 4173 7164 4179 7162 4182 7141 4177 7140
      4176 7144 4174 7145

$$

RLG
898 
WGUS71 KBOX 071921
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
321 PM EDT THU JUL 7 2016

RIC007-071931-
/O.EXP.KBOX.FF.W.0001.000000T0000Z-160707T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PROVIDENCE RI-
321 PM EDT THU JUL 7 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN PROVIDENCE COUNTY HAS
EXPIRED...

THE HEAVY RAIN HAS ENDED. FLOODING IS NO LONGER EXPECTED TO POSE A
THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4173 7164 4179 7162 4182 7141 4177 7140
      4176 7144 4174 7145

$$

RLG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 1:14 PM EDTSpecial Weather StatementBOXProvidence46 min
Jul 7, 1:17 PM EDTSevere Thunderstorm WarningBOXKent, Providence58 min
Jul 7, 2:21 PM EDTSpecial Weather StatementBOXKent39 min
Jul 7, 2:29 PM EDTSpecial Weather StatementBOXProvidence46 min
Jul 7, 3:13 PM EDTSpecial Weather StatementBOXProvidence47 min
Jul 7, 3:20 PM EDTSpecial Weather StatementBOXProvidence40 min
Jul 7, 3:43 PM EDTAreal Flood WarningBOXProvidence3 hr

Nearby

Flash Flood Warnings in Rhode Island, 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.