Alert archive / Massachusetts / Flash Flood Warnings in 2009
Flash Flood Warning 3, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jun 27, 2009, 4:24 PM EDT for Bristol County, Norfolk County, Massachusetts. It was in force for 2 hr. 5 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 27, 2009, 4:24 PM EDT (20:24 UTC)
- Expired
- Jun 27, 2009, 6:30 PM EDT
- In force
- 2 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bristol County, MA, Norfolk County, MA
The radar
The Boston radar (KBOX), 18 km from the middle of the area, began a volume at 20:26 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 27, 4:45 PM EDT | FLOOD | Foxborough, MA | NUMEROUS REPORTS OF BASEMENT AND STREET FLOODING. |
| Jun 27, 4:45 PM EDT | HEAVY RAIN 3.37 | Mansfield, MA | MEASURED IN ONE HOUR...TOTAL OF 3.45 INCHES REPORTED |
| Jun 27, 4:47 PM EDT | FLOOD | Foxborough, MA | STREET FLOODING ON PAYSON ROAD, COCASSET STREET AT RAIL ROAD BRIDGE, AND ON SOUTH STREET. |
| Jun 27, 4:52 PM EDT | FLOOD | Mansfield, MA | CANOE RIVER OUT OF ITS BANKS. |
| Jun 27, 5:07 PM EDT | FLOOD | Foxborough, MA | FLOOD WATERS ENTERING SOUTH SIDE OF PATRIOT PLACE. |
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, 8.4 hours before the alert went out and 113 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
- 96 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 970 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KBOX 272024 FFWBOX MAC005-021-272230- /O.NEW.KBOX.FF.W.0003.090627T2024Z-090627T2230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TAUNTON MA 424 PM EDT SAT JUN 27 2009 THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL NORFOLK COUNTY IN EASTERN MASSACHUSETTS... NORTH CENTRAL BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS... * UNTIL 630 PM EDT * AT 422 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM SLOW MOVING THUNDERSTORMS OVER THE WARNED AREA. SOME LOCATIONS HAVE RECEIVED OVER 2 INCHES OF RAIN IN LESS THAN 1 HOUR EXCESSIVE RUNOFF FROM HEAVY RAIN WILL CAUSE RAPID FLOODING OF SMALL STREAMS. FLOODING OF URBAN AREAS...INCLUDING ROADS AND UNDERPASSES IS ALSO EXPECTED. DO NOT DRIVE THROUGH FLOODED ROADWAYS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY...INCLUDING UNDERPASSES. THE WATER MAY BE TOO DEEP TO ALLOW VEHICLES TO CROSS SAFELY...OR THE ROADWAY MAY BE UNDERMINED. LAT...LON 4221 7123 4215 7105 4195 7114 4206 7131 $$ FRANK
2 follow-up statements
000 WGUS71 KBOX 272105 FFSBOX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 505 PM EDT SAT JUN 27 2009 MAC005-021-272230- /O.CON.KBOX.FF.W.0003.000000T0000Z-090627T2230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORFOLK MA-BRISTOL MA- 505 PM EDT SAT JUN 27 2009 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR CENTRAL NORFOLK COUNTY IN EASTERN MASSACHUSETTS...AND NORTH CENTRAL BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS... AT 503 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS TRAINING OVER THE SAME REGION. THESE STORMS WERE PRODUCING SIGNIFICANT FLASH FLOODING IN THE FOXBOROUGH REGION. IF YOU LIVE IN THE FOXBOROUGH REGION TRAVEL IS NOT RECOMMENDED AS MANY ROADS ARE CLOSED. THIS IS A DANGEROUS SITUATION AND SOME LOCATIONS HAVE RECEIVED OVER 3 INCHES OF RAIN IN ADDITION...THE CANOE RIVER IS IN FLOOD ACROSS THE TOWN OF MANSFIELD. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WALPOLE... STOUGHTON...SHARON...NORWOOD AND CANTON PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. && LAT...LON 4221 7123 4215 7105 4195 7114 4206 7131 $$ FRANK
000 WGUS71 KBOX 272231 FFSBOX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TAUNTON MA 631 PM EDT SAT JUN 27 2009 MAC005-021-272240- /O.EXP.KBOX.FF.W.0003.000000T0000Z-090627T2230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORFOLK MA-BRISTOL MA- 631 PM EDT SAT JUN 27 2009 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR CENTRAL NORFOLK COUNTY IN EASTERN MASSACHUSETTS...AND NORTH CENTRAL BRISTOL COUNTY IN SOUTHEAST MASSACHUSETTS... THE FLASH FLOOD WARNING HAS EXPIRED...NO ADDITIONAL RAINFALL IS EXPECTED IN THE WARNED AREA. HOWEVER...PLEASE REFER TO THE MOST RECENT AREAL FLOOD ADVISORIES FOR MORE INFORMATION ON ONGOING FLOODING FROM EARLIER THIS EVENING. LAT...LON 4221 7123 4215 7105 4195 7114 4206 7131 $$ RLG
The office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 5:41 AM EDT | Dense Fog Advisory | BOX | Franklin, Hampden, Hampshire | 2 hr |
| Jun 27, 3:45 PM EDT | Areal Flood Advisory | BOX | Norfolk | 3 hr |
| Jun 27, 3:51 PM EDT | Severe Thunderstorm Warning | BOX | Norfolk | 39 min |
| Jun 27, 4:13 PM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk, Plymouth | 3 hr |
| Jun 27, 4:16 PM EDT | Severe Thunderstorm Warning | BOX | Bristol, Norfolk, Plymouth | 44 min |
| Jun 27, 4:40 PM EDT | Areal Flood Advisory | BOX | Franklin, Hampden, Hampshire | 100 min |
| Jun 27, 5:11 PM EDT | Areal Flood Advisory | BOX | Middlesex, Worcester | 3 hr |
| Jun 27, 5:16 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 44 min |
| Jun 27, 5:36 PM EDT | Special Marine Warning | BOX | 54 min | |
| Jun 27, 5:40 PM EDT | Special Marine Warning | BOX | 65 min | |
| Jun 27, 5:47 PM EDT | Areal Flood Advisory | BOX | Middlesex, Worcester | 2 hr |
| Jun 27, 5:53 PM EDT | Severe Thunderstorm Warning | BOX | Middlesex, Worcester | 52 min |
| Jun 27, 6:02 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 43 min |
| Jun 27, 6:06 PM EDT | Flash Flood Warning | BOX | Middlesex, Worcester | 114 min |
| Jun 27, 6:17 PM EDT | Areal Flood Advisory | BOX | Middlesex, Worcester | 3 hr |
| Jun 27, 6:20 PM EDT | Severe Thunderstorm Warning | BOX | Worcester | 55 min |
| Jun 27, 6:24 PM EDT | Special Marine Warning | BOX | 66 min | |
| Jun 27, 6:36 PM EDT | Special Marine Warning | BOX | 54 min | |
| Jun 27, 6:40 PM EDT | Special Marine Warning | BOX | 65 min | |
| Jun 27, 6:41 PM EDT | Flash Flood Warning | BOX | Worcester | 2 hr |
| Jun 27, 6:45 PM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk | 3 hr |
| Jun 27, 7:38 PM EDT | Areal Flood Advisory | BOX | Hampden, Worcester | 3 hr |
| Jun 27, 7:44 PM EDT | Special Marine Warning | BOX | 61 min |
Nearby
Flash Flood Warnings in Massachusetts, 2009Every flash flood warning in 2009
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.