Alert archive / Rhode Island / Flash Flood Warnings in 2014

Flash Flood Warning 36, NWS Boston/Norton, MA

August 13, 2014Kent County, Providence County, Rhode Island

NWS Boston/Norton, MA issued this flash flood warning at Aug 13, 2014, 9:12 AM EDT for Kent County, Providence County, Rhode Island. It was in force for 4 hr. 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 13, 2014, 9:12 AM EDT (13:12 UTC)
Expired
Aug 13, 2014, 1:15 PM EDT
In force
4 hr
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Flood severity
None

Counties Kent County, RI, Providence County, RI

The radar

The Boston radar (KBOX), 56 km from the middle of the area, began a volume at 13:16 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

Brookhaven, NY (KOKX), launched 12:00Z, 1.2 hours before the alert went out and 135 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 2014-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 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 2014-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 186 square meters per square second.19395878Sfc1 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
8 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
473 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
186 m²/s²
0-3 km storm-relative helicity
534 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

157 
WGUS51 KBOX 131312
FFWBOX
RIC003-007-131715-
/O.NEW.KBOX.FF.W.0036.140813T1312Z-140813T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
912 AM EDT WED AUG 13 2014

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL KENT COUNTY IN RHODE ISLAND...
  SOUTHWESTERN PROVIDENCE COUNTY IN RHODE ISLAND...

* UNTIL 115 PM EDT

* AT 909 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE
  WARNED AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN. FLASH
  FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  COVENTRY...SCITUATE...GLOCESTER...WEST GREENWICH AND FOSTER. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4170 7179 4187 7179 4187 7162 4165 7167
      4163 7178

$$

FRANK
2 follow-up statements
010 
WGUS71 KBOX 131357
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
957 AM EDT WED AUG 13 2014

RIC003-007-131715-
/O.CON.KBOX.FF.W.0036.000000T0000Z-140813T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KENT RI-PROVIDENCE RI-
957 AM EDT WED AUG 13 2014

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 PM EDT FOR
WEST CENTRAL KENT AND SOUTHWESTERN PROVIDENCE COUNTIES...

AT 955 AM EDT...DOPPLER RADAR INDICATED A SWATH OF MODERATE TO HEAVY 
RAIN CONTINUED TO FALL ACROSS THE WARNED AREA. RADAR ESTIMATES THAT 
2.5 TO LOCALLY OVER 3 INCHES OF RAIN HAS FALLEN SO FAR THIS MORNING. 

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED IN THE 
WARNING AREA DURING LATE THIS MORNING. AS A RESULT...FLASH FLOODING 
IS EXPECTED. OF PARTICULAR CONCERN IS RAPID INUNDATION OF LOW LYING 
AND POOR DRAINAGE AREAS. HOWEVER THE POTENTIAL EXISTS FOR SMALL 
STREAM FLOODING AS WELL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4170 7179 4187 7179 4187 7162 4165 7167
      4163 7178

$$

NMB
092 
WGUS71 KBOX 131636
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1236 PM EDT WED AUG 13 2014

RIC003-007-131644-
/O.CAN.KBOX.FF.W.0036.000000T0000Z-140813T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KENT RI-PROVIDENCE RI-
1236 PM EDT WED AUG 13 2014

...THE FLASH FLOOD WARNING FOR WEST CENTRAL KENT AND SOUTHWESTERN
PROVIDENCE COUNTIES IS CANCELLED...

THE SWATH OF HEAVY RAINS THAT AFFECTED WEST CENTRAL RHODE ISLAND 
DURING THIS MORNING HAS DIMINISHED AND MOVED OUT OF THE AREA.  
LINGERING SCATTERED SHOWERS REMAIN...WITH LIGHT TO LOCALLY MODERATE 
RAIN. THE SCATTERED SHOWERS OVER THE AREA AT THIS TIME...ARE NOT 
EXPECTED TO PRODUCE NEW FLOODING...OR EXACERBATE ANY LINGERING 
FLOODING. 
 
ANY REMAINING FLOODWATERS ARE EXPECTED TO GRADUALLY RECEDE DURING 
EARLY THIS AFTERNOON. PLEASE CONTINUE TO HEED ANY ROAD CLOSURES THAT 
MAY BE IN EFFECT.

A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM.  THERE IS STILL A 
RISK FOR HEAVY RAINS IN SOUTHERN NEW ENGLAND UNTIL EARLY THIS 
EVENING. 

LAT...LON 4170 7179 4187 7179 4187 7162 4165 7167
      4163 7178

$$

NMB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 6:17 AM EDTAreal Flood AdvisoryBOXProvidence3 hr
Aug 13, 8:22 AM EDTAreal Flood AdvisoryBOXBristol, Kent, Washington113 min
Aug 13, 8:30 AM EDTFlash Flood WarningBOXBristol, Kent, Providence4 hr
Aug 13, 8:58 AM EDTAreal Flood AdvisoryBOXProvidence2 hr
Aug 13, 10:59 AM EDTAreal Flood AdvisoryBOXBristol, Providence4 hr
Aug 13, 11:24 AM EDTFlash Flood WarningBOXBristol, Providence4 hr

Nearby

Flash Flood Warnings in Rhode Island, 2014Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.