Alert archive / Massachusetts / Flash Flood Warnings in 2017
Flash Flood Warning 3, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Jul 7, 2017, 1:37 PM EDT for Barnstable County, Massachusetts. It was in force for 3 hr. 12 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 7, 2017, 1:37 PM EDT (17:37 UTC)
- Expired
- Jul 7, 2017, 4:17 PM EDT
- In force
- 3 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
County Barnstable County, MA
The radar
The Boston radar (KBOX), 63 km from the middle of the area, began a volume at 17:38 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 7, 1:43 PM EDT | FLASH FLOOD | Falmouth, MA | MAIN STREET BY DUNKIN DONUTS FLOODED UP TO VECHICLES HOODS |
| Jul 7, 1:48 PM EDT | FLOOD | Falmouth, MA | MAIN STREET RTE 28 CLOSED DUE TO SIGNIFICANT STREET FLOODING |
| Jul 7, 1:48 PM EDT | FLOOD | Falmouth, MA | MAIN STREET RTE 28 CLOSED DUE TO SIGNIICANT STREET FLOODING |
| Jul 7, 1:57 PM EDT | FLASH FLOOD | Falmouth, MA | PALMER ROAD FLOODED AND IMPASSABLE |
| Jul 7, 2:17 PM EDT | FLASH FLOOD | West Barnstable, MA | HALF OF CEDAR STREET IS FLOODED AMD WASHED OUIT |
| Jul 7, 2:25 PM EDT | FLASH FLOOD | Sandwich, MA | HILLSIDE ROAD AND WEST CROSSFIELD FLOODED AND IMPASSABLE |
| Jul 7, 2:35 PM EDT | FLASH FLOOD | Sandwich, MA | MUDSLIDE FROM A CONSTRUCTION AREA FLOWING ONTO ACADEMY ROAD |
| Jul 7, 2:38 PM EDT | FLASH FLOOD | Mashpee, MA | 12 INCHES OF STANDING WATER ON MALLWAY STREET |
| Jul 7, 2:43 PM EDT | FLASH FLOOD | Osterville, MA | OAK RIDGE ROAD IS FLOODED AND IMPASSABLE. |
| Jul 7, 2:49 PM EDT | FLASH FLOOD | Sandwich, MA | CAR STUCK IN FLOOD WATERS ON SPINNAKER STREET |
| Jul 7, 3:04 PM EDT | FLASH FLOOD | West Barnstable, MA | PARKING LOT FLOODED AT CAPE COD COMMUNITY COLLEGE |
| Jul 7, 3:38 PM EDT | FLASH FLOOD | Sandwich, MA | COTUIT ROAD AND PIMILCO POND 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
Chatham, MA (KCHH), launched 12:00Z, 5.6 hours before the alert went out and 49 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1054 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
438
WGUS51 KBOX 071737
FFWBOX
MAC001-071930-
/O.NEW.KBOX.FF.W.0003.170707T1737Z-170707T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Taunton MA
137 PM EDT FRI JUL 7 2017
The National Weather Service in Taunton has issued a
* Flash Flood Warning for...
Southwestern Barnstable County in southeastern Massachusetts...
* Until 330 PM EDT
* At 136 PM EDT, Doppler radar indicated heavy rain across the warned
area. Up to one inch of rain has already fallen. Flash flooding is
expected to begin shortly with an additional 1 to 2 inches of rain
within the next hour.
* Some locations that will experience flooding include...
Barnstable, Falmouth, Sandwich, Bourne, Mashpee and Gosnold.
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 4161 7033 4159 7043 4154 7047 4154 7059
4151 7065 4151 7068 4150 7071 4152 7073
4158 7065 4163 7067 4170 7067 4178 7048
4174 7031
$$
Frank3 follow-up statements
505
WGUS71 KBOX 071749
FFSBOX
Flash Flood Statement
National Weather Service Taunton MA
149 PM EDT FRI JUL 7 2017
MAC001-071930-
/O.CON.KBOX.FF.W.0003.000000T0000Z-170707T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Barnstable MA-
149 PM EDT FRI JUL 7 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM EDT FOR
SOUTHWESTERN BARNSTABLE COUNTY...
At 145 PM EDT, trained weather spotters reported flash flooding
occurring in Falmouth. Many roads were experiencing significant
flooding, especially along portions of Main Street. Some roads were
impassable and in certain instances water was up to the hoods of
vehicles. Up to two inches of rain have already fallen. Flash
flooding is already occurring. Do not drive through flooded
roadways, this is a serious situation.
Some locations that will experience flooding include...
Barnstable, Falmouth, Sandwich, Bourne, Mashpee and Gosnold.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4161 7033 4159 7043 4154 7047 4154 7059
4151 7065 4151 7068 4150 7071 4152 7073
4158 7065 4163 7067 4170 7067 4178 7048
4174 7031
$$
Frank679
WGUS51 KBOX 071901
FFWBOX
MAC001-072130-
/O.EXT.KBOX.FF.W.0003.000000T0000Z-170707T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Taunton MA
301 PM EDT FRI JUL 7 2017
The National Weather Service in Taunton has extended the
* Flash Flood Warning for...
Southwestern Barnstable County in southeastern Massachusetts...
* Until 530 PM EDT
* At 256 PM EDT, Doppler radar indicated that the worst of the
torrential rain has shifted east of the Falmouth, Sandwich and
Mashpee areas. However, widespread rain was still occurring with
bands of heavier showers persisting. Flash flooding was still in
progress from the 2 to 4.50 inches of rain that has occurred in
the last two hours. Therefore, the flash flood warning has been
extended as many roads are flooded and impassable. Travel is
highly discouraged.
* Some locations that will experience flooding include...
Barnstable, Falmouth, Sandwich, Bourne, Mashpee and Gosnold.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4161 7033 4159 7043 4154 7047 4154 7059
4151 7065 4151 7068 4150 7071 4152 7073
4158 7065 4163 7067 4170 7067 4178 7048
4174 7031
$$
Frank989
WGUS71 KBOX 072017
FFSBOX
Flash Flood Statement
National Weather Service Taunton MA
417 PM EDT FRI JUL 7 2017
MAC001-072025-
/O.CAN.KBOX.FF.W.0003.000000T0000Z-170707T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Barnstable MA-
417 PM EDT FRI JUL 7 2017
...THE FLASH FLOOD WARNING FOR SOUTHWESTERN BARNSTABLE COUNTY IS
CANCELLED...
The heavy rain has ended and additional flooding is not expected.
However, the 2 to 4.50 inches of the rain that fell earlier today
resulted in signficant flash flooding. Some roadways are still
closed and motorists are urged not to drive through flooded areas.
LAT...LON 4161 7033 4159 7043 4154 7047 4154 7059
4151 7065 4151 7068 4150 7071 4152 7073
4158 7065 4163 7067 4170 7067 4178 7048
4174 7031
$$
FrankThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 12:05 PM EDT | Special Marine Warning | BOX | 25 min | |
| Jul 7, 12:29 PM EDT | Special Marine Warning | BOX | 31 min | |
| Jul 7, 12:37 PM EDT | Areal Flood Advisory | BOX | Barnstable, Bristol, Dukes, Plymouth | 113 min |
| Jul 7, 1:17 PM EDT | Areal Flood Warning | BOX | Barnstable | 118 min |
| Jul 7, 2:16 PM EDT | Areal Flood Advisory | BOX | Barnstable | 119 min |
| Jul 7, 2:25 PM EDT | Flash Flood Warning | BOX | Barnstable | 2 hr |
| Jul 7, 2:43 PM EDT | Special Weather Statement | BOX | Barnstable | 47 min |
| Jul 7, 3:14 PM EDT | Areal Flood Warning | BOX | Barnstable | 2 hr |
| Jul 7, 3:42 PM EDT | Special Marine Warning | BOX | 63 min | |
| Jul 7, 3:46 PM EDT | Special Marine Warning | BOX | 59 min | |
| Jul 7, 4:25 PM EDT | Areal Flood Advisory | BOX | Barnstable | 110 min |
Nearby
Flash 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.