Alert archive / Massachusetts / Flash Flood Warnings in 2014
Flash Flood Warning 16, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jul 4, 2014, 4:00 PM EDT for Barnstable County, Plymouth County, Massachusetts. It was in force for 7 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
- Jul 4, 2014, 4:00 PM EDT (20:00 UTC)
- Expired
- Jul 4, 2014, 11:03 PM EDT
- In force
- 7 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Barnstable County, MA, Plymouth County, MA
The radar
The Boston radar (KBOX), 47 km from the middle of the area, began a volume at 20:00 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
Chatham, MA (KCHH), launched 12:00Z, 8.0 hours before the alert went out and 55 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
- 633 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 738 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
071
WGUS51 KBOX 042000
FFWBOX
MAC001-023-042200-
/O.NEW.KBOX.FF.W.0016.140704T2000Z-140704T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
400 PM EDT FRI JUL 4 2014
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN PLYMOUTH COUNTY IN SOUTHEAST MASSACHUSETTS...
WEST CENTRAL BARNSTABLE COUNTY IN SOUTHEAST MASSACHUSETTS...
* UNTIL 600 PM EDT
* AT 358 PM EDT...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. RADAR IS ESTIMATING
TWO TO FOUR INCHES RAIN HAVE ALREADY FALLEN. RAINFALL RATES OF ONE
TO TWO INCHES IS PER HOUR ARE POSSIBLE AND FLASH FLOODING IS
EXPECTED.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PLYMOUTH...WAREHAM...SANDWICH...BOURNE AND CARVER.
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 4172 7063 4173 7062 4173 7064 4174 7065
4171 7065 4173 7068 4174 7072 4187 7075
4194 7057 4188 7053 4184 7053 4182 7054
4178 7050
$$
KJC4 follow-up statements
719
WGUS51 KBOX 042137
FFWBOX
MAC001-023-050400-
/O.EXT.KBOX.FF.W.0016.000000T0000Z-140705T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
537 PM EDT FRI JUL 4 2014
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN PLYMOUTH COUNTY IN SOUTHEAST MASSACHUSETTS...
WEST CENTRAL BARNSTABLE COUNTY IN SOUTHEAST MASSACHUSETTS...
* UNTIL 1200 AM EDT SATURDAY
* AT 535 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE SHOWERS AND
THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FOUR TO
SIX INCHES OF HAVE FALLEN SINCE 1 PM AND RAINFALL RATES OF UP TO
ONE INCH PER HOUR ARE EXPECTED. SIGNIFICANT FLOODING IS EXPECTED.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PLYMOUTH...WAREHAM...SANDWICH...BOURNE AND CARVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADS AND OBEY
ROAD CLOSURES. THOSE NEAR SMALL STREAMS MUST HEAD FOR HIGHER GROUND
IMMEDIATELY.
FLOODING IS DIFFICULT TO SEE AT NIGHT. HEAD TO HIGHER GROUND
IMMEDIATELY AND DO NOT DRIVE THROUGH FLOODED ROADS. FIND ALTERNATE
ROUTES.
MOST FLOOD DEATHS OCCUR IN VEHICLES. TURN AROUND...DONT DROWN.
&&
LAT...LON 4172 7063 4173 7062 4173 7064 4174 7065
4171 7065 4173 7068 4174 7072 4187 7075
4194 7057 4188 7053 4184 7053 4182 7054
4178 7050
$$
KJC201
WGUS71 KBOX 042256
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
656 PM EDT FRI JUL 4 2014
MAC001-023-050400-
/O.CON.KBOX.FF.W.0016.000000T0000Z-140705T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PLYMOUTH MA-BARNSTABLE MA-
656 PM EDT FRI JUL 4 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1200 AM EDT
SATURDAY FOR SOUTHEASTERN PLYMOUTH AND WEST CENTRAL BARNSTABLE
COUNTIES...
AT 650 PM EDT...DOPPLER RADAR INDICATED WIDESPREAD RAIN CONTINUED
ACROSS THE REGION...BUT INTENSITIES HAVE DIMINISHED TO SOME DEGREE.
HOWEVER...MUCH OF THIS REGION HAS RECEIVED 3 TO 6 INCHES OF RAIN
THROUGH EARLY THIS EVENING. THEREFORE...FLASH FLOODING IS STILL
BEGIN REPORTED PARTICULARLY IN THE BOURNE AND SOUTH PLYMOUTH
AREA...INCLUDING AREAS NEAR THE CAPE COD CANAL THROUGH THIS EVENING.
MODERATE TO HEAVY RAIN WILL CONTINUE FOR THE NEXT SEVERAL HOURS AND
CONTINUE TO RESULT IN FLASH FLOODING. DO NOT DRIVE THROUGH FLOODED
ROADWAYS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLOOD DEATHS OCCUR IN VEHICLES. TURN AROUND...DONT DROWN.
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 4172 7063 4173 7062 4173 7064 4174 7065
4171 7065 4173 7068 4174 7072 4187 7075
4194 7057 4188 7053 4184 7053 4182 7054
4178 7050
$$
FRANK199
WGUS71 KBOX 050136
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
936 PM EDT FRI JUL 4 2014
MAC001-023-050400-
/O.CON.KBOX.FF.W.0016.000000T0000Z-140705T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PLYMOUTH MA-BARNSTABLE MA-
936 PM EDT FRI JUL 4 2014
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1200 AM EDT
SATURDAY FOR SOUTHEASTERN PLYMOUTH AND WEST CENTRAL BARNSTABLE
COUNTIES...
AT 930 PM EDT...DOPPLER RADAR INDICATED WIDESPREAD RAIN CONTINUING
TO AFFECT THE REGION. HOWEVER...RAINFALL RATES HAVE DIMINISHED
CONSIDERABLY FROM WHAT OCCURRED LATE THIS AFTERNOON AND EARLY THIS
EVENING. WATER LEVELS HAVE ALSO DIMINISHED...BUT SOME ROADS MAY
REMAINED FLOODED AND IMPASSABLE FROM THE EARLIER HEAVY RAINFALL.
THIS IS PARTICULARLY TRUE ACROSS THE BOURNE AND SOUTH PLYMOUTH
AREAS...WHERE RAINFALL AMOUNTS BETWEEN 4 AND 7 INCHES OCCURRED
EARLIER TODAY.
THE STEADY RAIN SHOULD FINALLY COME TO AN END IN THE NEXT FEW HOURS.
DO NOT DRIVE THROUGH FLOODED ROADWAYS!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING IS ISSUED FOR RAPID AND POTENTIALLY LIFE
THREATENING FLOODING. IN URBAN AREAS AVOID FLOODED ROADS AND OBEY
ROAD CLOSURES. THOSE NEAR SMALL STREAMS MUST HEAD FOR HIGHER GROUND
IMMEDIATELY.
&&
LAT...LON 4172 7063 4173 7062 4173 7064 4174 7065
4171 7065 4173 7068 4174 7072 4187 7075
4194 7057 4188 7053 4184 7053 4182 7054
4178 7050
$$
FRANK325
WGUS71 KBOX 050303
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1103 PM EDT FRI JUL 4 2014
MAC001-023-050312-
/O.CAN.KBOX.FF.W.0016.000000T0000Z-140705T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PLYMOUTH MA-BARNSTABLE MA-
1103 PM EDT FRI JUL 4 2014
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN PLYMOUTH AND WEST CENTRAL
BARNSTABLE COUNTIES IS CANCELLED...
THE HEAVIEST RAIN HAS ENDED AND NO ADDITIONAL FLOODING IS EXPECTED.
THEREFORE...THE FLASH FLOOD WARNING IS CANCELLED. HOWEVER...A FEW
ROADS MAY REMAIN FLOODED INTO THE OVERNIGHT HOURS FROM THE VERY
HEAVY RAINFALL THAT FELL EARLIER TODAY. REMEMBER...DO NOT DRIVE
THROUGH FLOODED ROADWAYS!
LAT...LON 4172 7063 4173 7062 4173 7064 4174 7065
4171 7065 4173 7068 4174 7072 4187 7075
4194 7057 4188 7053 4184 7053 4182 7054
4178 7050
$$
FRANKThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 8:09 PM EDT | Flash Flood Warning | BOX | Hampden, Hampshire | 3 hr |
| Jul 3, 8:16 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Hampshire, Worcester | 59 min |
| Jul 3, 8:48 PM EDT | Severe Thunderstorm Warning | BOX | Franklin, Middlesex, Worcester | 57 min |
| Jul 3, 8:59 PM EDT | Severe Thunderstorm Warning | BOX | Hampden, Worcester | 46 min |
| Jul 3, 9:51 PM EDT | Severe Thunderstorm Warning | BOX | Norfolk, Worcester | 39 min |
| Jul 3, 10:13 PM EDT | Special Weather Statement | BOX | Middlesex, Suffolk | 47 min |
| Jul 3, 10:37 PM EDT | Severe Thunderstorm Warning | BOX | Essex, Middlesex, Suffolk | 23 min |
| Jul 3, 10:40 PM EDT | Special Marine Warning | BOX | 65 min | |
| Jul 3, 10:54 PM EDT | Small Craft Advisory | BOX | 47 hr | |
| Jul 3, 10:55 PM EDT | Severe Thunderstorm Warning | BOX | Essex | 35 min |
| Jul 3, 11:01 PM EDT | Special Marine Warning | BOX | 59 min | |
| Jul 3, 11:11 PM EDT | Hurricane Warning | BOX | 30 hr | |
| Jul 4, 4:48 AM EDT | Flash Flood Watch | BOX | Barnstable, Bristol, Dukes, Essex, Middlesex, Nantucket and 3 more | 18 hr |
| Jul 4, 5:59 AM EDT | Hurricane Local Statement | BOX | Bristol, Dukes, Essex, Norfolk, Plymouth, Suffolk | 23 hr |
| Jul 4, 12:29 PM EDT | Areal Flood Advisory | BOX | Bristol | 2 hr |
| Jul 4, 1:21 PM EDT | Flash Flood Warning | BOX | Bristol, Plymouth | 9 hr |
| Jul 4, 2:43 PM EDT | Areal Flood Advisory | BOX | Plymouth | 2 hr |
| Jul 4, 2:56 PM EDT | Flash Flood Warning | BOX | Bristol | 6 hr |
| Jul 4, 4:59 PM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk, Plymouth, Suffolk | 3 hr |
| Jul 4, 6:32 PM EDT | Areal Flood Advisory | BOX | Barnstable, Dukes, Nantucket | 4 hr |
Nearby
Flash Flood Warnings in Massachusetts, 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.