Alert archive / Connecticut / Flash Flood Warnings in 2017
Flash Flood Warning 9, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jul 12, 2017, 5:36 PM EDT for Northeastern Connecticut Planning Region, Connecticut; Providence County, Rhode Island; Worcester County, Massachusetts. It was in force for 114 min. 3 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
- Jul 12, 2017, 5:36 PM EDT (21:36 UTC)
- Expired
- Jul 12, 2017, 7:30 PM EDT
- In force
- 114 min
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Northeastern Connecticut Planning Region, CT, Worcester County, MA, Providence County, RI
The radar
The Boston radar (KBOX), 72 km from the middle of the area, began a volume at 21:38 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 |
|---|---|---|---|
| Jul 12, 6:38 PM EDT | FLOOD | 1 Ene Quinebaug, MA | WEST MAIN STREET FLOODED AND IMPASSABLE NEAR THE CT STATE BORDER ... ALSO SOUTHBRIDGE ROAD NEAR THE CT STATE BORDER AS WELL. |
| Jul 12, 6:38 PM EDT | FLOOD | 1 Nnw East Village, MA | WORCESTER ROAD FLOODED AND IMPASSABLE AT ALL STAR PAINTBALL. |
| Jul 12, 7:26 PM EDT | FLOOD | Dudley, MA | CENTER ROAD FLOODED AND IMPASSABLE |
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, 9.6 hours before the alert went out and 148 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
- 529 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1143 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 112 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted.
749
WGUS51 KBOX 122136
FFWBOX
CTC013-015-MAC027-RIC007-122330-
/O.NEW.KBOX.FF.W.0009.170712T2136Z-170712T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Taunton MA
536 PM EDT WED JUL 12 2017
The National Weather Service in Taunton has issued a
* Flash Flood Warning for...
Northern Windham County in northern Connecticut...
Northeastern Tolland County in northern Connecticut...
Southeastern Worcester County in central Massachusetts...
Northwestern Providence County in Rhode Island...
* Until 730 PM EDT
* At 535 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to two inches of rain have
already fallen. Flash flooding is expected to begin shortly.
Substantial urban and poor drainage flooding is expected.
* Some locations that will experience flooding include...
Milford, Smithfield, Grafton, Killingly, Webster, Southbridge,
Burrillville, Northbridge, Oxford, Uxbridge, Charlton, North
Smithfield, Dudley, Glocester, Putnam, Thompson, Sturbridge,
Blackstone, Sutton and Douglas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flash Flood Warning means that flooding will occur quickly, and
could be life threatening for those who try to drive through flooded
roads or underpasses. Find alternate routes. Those near small streams
need to get to higher ground immediately.
&&
LAT...LON 4203 7221 4203 7213 4211 7213 4218 7156
4188 7154 4191 7221
$$
NMB1 follow-up statement
127
WGUS71 KBOX 122329
FFSBOX
Flash Flood Statement
National Weather Service Taunton MA
729 PM EDT WED JUL 12 2017
CTC013-015-MAC027-RIC007-122338-
/O.EXP.KBOX.FF.W.0009.000000T0000Z-170712T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Windham CT-Tolland CT-Worcester MA-Providence RI-
729 PM EDT WED JUL 12 2017
...THE FLASH FLOOD WARNING FOR NORTHERN WINDHAM...NORTHEASTERN
TOLLAND...SOUTHEASTERN WORCESTER AND NORTHWESTERN PROVIDENCE COUNTIES
WILL EXPIRE AT 730 PM EDT...
Some light to moderate rain will cross thru the area over the course
of the next hour. However, the heavy rain has moved on to the east,
and renewed flooding is no longer expected to pose a threat. Please
continue to heed any remaining road closures.
LAT...LON 4203 7221 4203 7213 4211 7213 4218 7156
4188 7154 4191 7221
$$
NMBThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 10:15 AM EDT | Flash Flood Watch | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 11 hr |
| Jul 12, 12:53 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region | 67 min |
| Jul 12, 1:07 PM EDT | Areal Flood Advisory | BOX | Capitol Planning Region | 53 min |
| Jul 12, 1:22 PM EDT | Severe Thunderstorm Warning | BOX | 38 min | |
| Jul 12, 1:57 PM EDT | Severe Thunderstorm Warning | BOX | Capitol Planning Region, Northeastern Connecticut Planning Region | 41 min |
| Jul 12, 3:27 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 63 min |
| Jul 12, 3:47 PM EDT | Areal Flood Advisory | BOX | Northeastern Connecticut Planning Region | 58 min |
| Jul 12, 4:26 PM EDT | Flash Flood Warning | BOX | Northeastern Connecticut Planning Region | 2 hr |
| Jul 12, 5:01 PM EDT | Special Weather Statement | BOX | 44 min | |
| Jul 12, 5:19 PM EDT | Areal Flood Advisory | BOX | Northeastern Connecticut Planning Region | 56 min |
| Jul 12, 5:21 PM EDT | Severe Thunderstorm Warning | BOX | Northeastern Connecticut Planning Region | 35 min |
| Jul 12, 5:43 PM EDT | Special Weather Statement | BOX | 47 min | |
| Jul 12, 12:34 PM EDT | Special Weather Statement | BOX | Bristol | 41 min |
| Jul 12, 2:32 PM EDT | Special Weather Statement | BOX | Providence | 43 min |
| Jul 12, 2:53 PM EDT | Flash Flood Warning | BOX | Providence | 112 min |
| Jul 12, 3:03 PM EDT | Special Weather Statement | BOX | Providence | 42 min |
| Jul 12, 3:10 PM EDT | Severe Thunderstorm Warning | BOX | Providence | 50 min |
| Jul 12, 3:26 PM EDT | Flash Flood Warning | BOX | Bristol, Newport, Providence | 2 hr |
| Jul 12, 3:44 PM EDT | Severe Thunderstorm Warning | BOX | Providence | 35 min |
| Jul 12, 4:26 PM EDT | Special Weather Statement | BOX | Kent | 49 min |
| Jul 12, 4:38 PM EDT | Severe Thunderstorm Warning | BOX | Kent, Washington | 31 min |
| Jul 12, 11:01 AM EDT | Special Weather Statement | BOX | Suffolk | 29 min |
| Jul 12, 12:01 PM EDT | Special Weather Statement | BOX | Franklin | 44 min |
| Jul 12, 12:05 PM EDT | Special Weather Statement | BOX | Worcester | 40 min |
| Jul 12, 12:24 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk, Worcester | 51 min |
| Jul 12, 12:25 PM EDT | Areal Flood Advisory | BOX | Franklin | 65 min |
| Jul 12, 12:36 PM EDT | Special Weather Statement | BOX | Hampden | 39 min |
| Jul 12, 12:44 PM EDT | Areal Flood Advisory | BOX | Middlesex, Norfolk, Worcester | 61 min |
| Jul 12, 12:46 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk | 44 min |
| Jul 12, 12:50 PM EDT | Special Weather Statement | BOX | Middlesex | 40 min |
| Jul 12, 1:19 PM EDT | Areal Flood Advisory | BOX | Hampden | 56 min |
| Jul 12, 1:39 PM EDT | Special Weather Statement | BOX | Worcester | 51 min |
| Jul 12, 1:39 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Norfolk, Plymouth | 51 min |
| Jul 12, 1:41 PM EDT | Special Weather Statement | BOX | Middlesex | 49 min |
| Jul 12, 1:47 PM EDT | Special Weather Statement | BOX | Hampden | 43 min |
| Jul 12, 1:52 PM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk, Plymouth | 53 min |
| Jul 12, 2:35 PM EDT | Areal Flood Advisory | BOX | Bristol, Plymouth | 55 min |
| Jul 12, 3:04 PM EDT | Areal Flood Advisory | BOX | Middlesex, Norfolk, Worcester | 56 min |
| Jul 12, 3:36 PM EDT | Special Weather Statement | BOX | Hampshire | 39 min |
| Jul 12, 3:53 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Plymouth | 34 min |
| Jul 12, 4:01 PM EDT | Special Weather Statement | BOX | Hampden | 44 min |
| Jul 12, 4:06 PM EDT | Areal Flood Advisory | BOX | Bristol, Plymouth | 114 min |
| Jul 12, 4:16 PM EDT | Special Weather Statement | BOX | Plymouth | 44 min |
| Jul 12, 4:18 PM EDT | Areal Flood Advisory | BOX | Norfolk, Plymouth, Suffolk | 57 min |
| Jul 12, 4:24 PM EDT | Special Marine Warning | BOX | 66 min | |
| Jul 12, 4:32 PM EDT | Special Marine Warning | BOX | 58 min | |
| Jul 12, 4:36 PM EDT | Areal Flood Advisory | BOX | Franklin, Hampden, Hampshire | 114 min |
| Jul 12, 4:39 PM EDT | Special Marine Warning | BOX | 66 min | |
| Jul 12, 4:48 PM EDT | Special Weather Statement | BOX | Middlesex | 42 min |
| Jul 12, 4:53 PM EDT | Flash Flood Warning | BOX | Hampden, Hampshire | 112 min |
| Jul 12, 5:00 PM EDT | Areal Flood Advisory | BOX | Essex, Middlesex | 60 min |
| Jul 12, 5:36 PM EDT | Special Weather Statement | BOX | Middlesex | 39 min |
| Jul 12, 5:42 PM EDT | Flash Flood Warning | BOX | Middlesex | 2 hr |
| Jul 12, 6:10 PM EDT | Special Weather Statement | BOX | Middlesex | 35 min |
| Jul 12, 6:20 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Norfolk, Suffolk | 25 min |
| Jul 12, 6:29 PM EDT | Flash Flood Warning | BOX | Middlesex, Norfolk, Suffolk | 2 hr |
| Jul 12, 6:39 PM EDT | Special Weather Statement | BOX | Norfolk | 36 min |
| Jul 12, 7:05 PM EDT | Special Weather Statement | BOX | Suffolk | 25 min |
| Jul 12, 7:35 PM EDT | Areal Flood Warning | BOX | Middlesex | 115 min |
Nearby
Flash Flood Warnings in Connecticut, 2017Flash Flood Warnings in Rhode Island, 2017Flash Flood Warnings in Massachusetts, 2017Every flash flood warning in 2017
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.