Alert archive / Massachusetts / Flash Flood Warnings in 2010
Flash Flood Warning 2, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jul 14, 2010, 2:43 PM EDT for Northeastern Connecticut Planning Region, Connecticut; Providence County, Rhode Island; Bristol County, Norfolk County, Massachusetts. It was in force for 107 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 14, 2010, 2:43 PM EDT (18:43 UTC)
- Expired
- Jul 14, 2010, 4:30 PM EDT
- In force
- 107 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Northeastern Connecticut Planning Region, CT, Bristol County, MA, Norfolk County, MA, Providence County, RI
The radar
The Boston radar (KBOX), 53 km from the middle of the area, began a volume at 18:45 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, 6.7 hours before the alert went out and 142 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.
- Mixed-layer CAPE
- 1134 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 539 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
268
WGUS51 KBOX 141843
FFWBOX
CTC015-MAC005-021-RIC007-142030-
/O.NEW.KBOX.FF.W.0002.100714T1843Z-100714T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
243 PM EDT WED JUL 14 2010
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
PROVIDENCE COUNTY IN RHODE ISLAND...
THIS INCLUDES THE CITIES OF...WOONSOCKET...PROVIDENCE...
EXTREME SOUTHWESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...
SOUTHERN WINDHAM COUNTY IN NORTHERN CONNECTICUT...
WEST CENTRAL BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS...
THIS INCLUDES THE CITIES OF...NORTH ATTLEBOROUGH...ATTLEBOROUGH...
* UNTIL 430 PM EDT
* AT 235 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT VERY TORRENTIAL RAIN WAS FALLING IN WINDHAM COUNTY
CONNECTICUT...PROVIDENCE COUNTY RHODE ISLAND...AND SOUTHERN NORFOLK
AND WESTERN BRISTOL COUNTIES IN MASSACHUSETTS. RADAR ESTIMATED
INSTANTANEOUS RAINFALL RATES WERE AS HIGH AS 3 TO 5 INCHES PER HOUR.
AS OF 235 PM...MORE THAN 2 INCHES HAS ALREADY LIKELY FALLEN IN
PORTIONS OF THESE AREAS.
THE SHOWERS AND THUNDERSTORMS WERE NEARLY STATIONARY AND THIS MAY
RESULT IN ACTUAL RAINFALL TOTALS IN EXCESS OF 4 INCHES IN PORTIONS
OF THE WARNED AREA.
FLASH FLOODING OF SMALL STREAMS AND URBAN AREAS IS LIKELY.
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 4166 7216 4179 7215 4182 7210 4200 7173
4201 7133 4194 7119 4183 7112 4175 7187
$$
FIELD1 follow-up statement
623
WGUS71 KBOX 141959
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
359 PM EDT WED JUL 14 2010
CTC015-MAC005-021-RIC007-142030-
/O.CON.KBOX.FF.W.0002.000000T0000Z-100714T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WINDHAM CT-NORFOLK MA-BRISTOL MA-PROVIDENCE RI-
359 PM EDT WED JUL 14 2010
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR
SOUTHERN WINDHAM COUNTY IN NORTHERN CONNECTICUT...AND EXTREME
SOUTHWESTERN NORFOLK COUNTY IN EASTERN MASSACHUSETTS...AND WEST
CENTRAL BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS...AND PROVIDENCE
COUNTY IN RHODE ISLAND...
AT 348 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE HEAVY RAIN ACROSS WINDHAM COUNTY CONNECTICUT...PROVIDENCE
COUNTY RHODE ISLAND...AND WESTERN BRISTOL COUNTY MASSACHUSETTS.
DOPPLER RADAR HAS ESTIMATED THAT 4 INCHES OF RAIN HAS LIKELY FALLEN
IN SMITHFIELD RI...WHICH MAY CAUSE HAWKINS BROOK AND THE STILLWATER
RIVER IN THE SOUTHERN PORTION OF SMITHFIELD TO OVERFLOW THEIR BANKS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.
MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
&&
LAT...LON 4166 7216 4179 7215 4182 7210 4200 7173
4201 7133 4194 7119 4183 7112 4175 7187
$$
FIELDThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 1:53 PM EDT | Areal Flood Advisory | BOX | Northeastern Connecticut Planning Region | 3 hr |
| Jul 14, 4:55 PM EDT | Areal Flood Advisory | BOX | Northeastern Connecticut Planning Region | 3 hr |
| Jul 14, 4:23 PM EDT | Areal Flood Advisory | BOX | Bristol, Kent, Newport, Providence, Washington | 55 min |
| Jul 14, 6:17 PM EDT | Areal Flood Advisory | BOX | Barnstable | 79 min |
Nearby
Flash Flood Warnings in Massachusetts, 2010Flash Flood Warnings in Connecticut, 2010Flash Flood Warnings in Rhode Island, 2010Every flash flood warning in 2010
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.