Alert archive / Rhode Island / Flash Flood Warnings in 2012

Flash Flood Warning 3, NWS Boston/Norton, MA

June 22, 2012Bristol County, Kent County, Providence County, Rhode Island

NWS Boston/Norton, MA issued this flash flood warning at Jun 22, 2012, 5:26 PM EDT for Bristol County, Kent County, Providence County, Rhode Island. 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: Jun 22, 2012, 5:26 PM EDT (21:26 UTC)
Expired: Jun 22, 2012, 8:30 PM EDT
In force: 3 hr
Issued by: NWS Boston/Norton, MA
Area: Storm-based polygon
Flood severity: None

Counties Bristol County, RI, Kent County, RI, Providence County, RI

The radar

The Boston radar (KBOX), 35 km from the middle of the area, began a volume at 21:27 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
Jun 22, 5:35 PM EDT	FLASH FLOOD	Coventry, RI	ROUTES 116 AND 117 FLOOODED AND IMPASSABLE
Jun 22, 6:21 PM EDT	FLASH FLOOD	Coventry, RI	TOIGUE AVENUE...SANDY BOTTOM ROAD AND THE INTERSECTION OF ROUTES 3 AND 33 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, 9.4 hours before the alert went out and 121 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: 83 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 1837 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 87 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.

428 
WGUS51 KBOX 222126
FFWBOX
RIC001-003-007-230030-
/O.NEW.KBOX.FF.W.0003.120622T2126Z-120623T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
526 PM EDT FRI JUN 22 2012

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN BRISTOL COUNTY IN RHODE ISLAND...
  THIS INCLUDES THE CITY OF BARRINGTON...
  KENT COUNTY IN RHODE ISLAND...
  THIS INCLUDES THE CITY OF WARWICK...
  SOUTHEASTERN PROVIDENCE COUNTY IN RHODE ISLAND...
  THIS INCLUDES THE CITY OF PROVIDENCE...

* UNTIL 830 PM EDT

* AT 522 PM EDT...RADAR INDICATED MULTIPLE THUNDERSTORMS TRACKING 
TOWARDS AND THROUGH THE PROVIDENCE METROPOLITAN AREA.  RADAR 
INDICATES THAT SOME OF THE STORMS ARE CAPABLE OF PRODUCING UP TO AN 
INCH OF RAIN IN 20 MINUTES.  AS A RESULT OF THIS HEAVY RAIN 
THREAT...URBAN AND POOR DRAINAGE FLASH FLOODING IS EXPECTED.  SOME 
SMALL STREAMS MAY NEAR BANKFULL LEVELS.

FLASH FLOODING OF SMALL STREAMS AND URBAN AREAS IS OCCURRING OR
IMMINENT. THOSE NEAR STREAMS AND CREEKS...OR IN AREAS PRONE TO
FLOODING SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. AVOID FLOODED
ROADS. THE WATER MAY BE TOO DEEP TO ALLOW VEHICLES TO CROSS SAFELY...
OR THE ROADWAY MAY BE UNDERMINED. TURN AROUND...DONT DROWN!

&&

LAT...LON 4165 7168 4166 7169 4185 7167 4190 7134
      4182 7135 4177 7130 4167 7130 4174 7137
      4173 7137 4172 7135 4167 7137 4168 7144
      4164 7147

$$

NMB

1 follow-up statement

524 
WGUS71 KBOX 230024
FFSBOX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
824 PM EDT FRI JUN 22 2012

RIC001-003-007-230034-
/O.EXP.KBOX.FF.W.0003.000000T0000Z-120623T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BRISTOL RI-PROVIDENCE RI-KENT RI-
824 PM EDT FRI JUN 22 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 830 PM EDT FOR NORTHERN
KENT...SOUTHEASTERN PROVIDENCE AND WESTERN BRISTOL COUNTIES IN RHODE
ISLAND...

LAT...LON 4165 7168 4166 7169 4185 7167 4190 7134
      4182 7135 4177 7130 4167 7130 4174 7137
      4173 7137 4172 7135 4167 7137 4168 7144
      4164 7147

$$

SIPPRELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 4:23 PM EDT	Special Weather Statement	BOX	Kent	67 min
Jun 22, 4:57 PM EDT	Special Weather Statement	BOX	Kent	63 min
Jun 22, 5:06 PM EDT	Special Weather Statement	BOX	Providence	54 min
Jun 22, 5:07 PM EDT	Areal Flood Advisory	BOX	Kent, Providence	3 hr
Jun 22, 5:27 PM EDT	Severe Thunderstorm Warning	BOX	Bristol, Kent, Newport, Providence, Washington	39 min

Nearby

Flash Flood Warnings in Rhode Island, 2012 Every flash flood warning in 2012

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.