Alert archive / Massachusetts / Flash Flood Warnings in 2013
Flash Flood Warning 41, NWS Boston/Norton, MA
NWS Boston/Norton, MA issued this flash flood warning at Aug 9, 2013, 11:21 AM EDT for Hampden County, Hampshire County, Massachusetts; Capitol Planning Region, Connecticut. It was in force for 3 hr. 11 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
- Aug 9, 2013, 11:21 AM EDT (15:21 UTC)
- Expired
- Aug 9, 2013, 2:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Boston/Norton, MA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Capitol Planning Region, CT, Hampden County, MA, Hampshire County, MA
The radar
The Brookhaven radar (KOKX), 110 km from the middle of the area, began a volume at 15:24 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 |
|---|---|---|---|
| Aug 9, 12:51 PM EDT | FLASH FLOOD | Granby, MA | NUMEROUS ROADS CLOSED DUE TO FLOODING |
| Aug 9, 12:52 PM EDT | FLASH FLOOD | Westfield, MA | SEVERAL CARS NEAR WESTFIELD INDUSTRIAK PARK RD STUCK IN FLOODED WATERS...WATER RESCUES ARE OCCURRING |
| Aug 9, 12:57 PM EDT | FLASH FLOOD | Westfield, MA | MEADOW ST FLOODED ... CARS ARE STUCK |
| Aug 9, 1:28 PM EDT | FLASH FLOOD | Holyoke, MA | HOLYOKE MALL - NEAR SEARS - CAR FLOATING IN PARKING LOT |
| Aug 9, 1:36 PM EDT | FLASH FLOOD | Holyoke, MA | CAR SUBMERGED - PEOPLE TRAPPED - AT CABOT AND COMMERCIAL STREETS |
| Aug 9, 1:46 PM EDT | FLASH FLOOD | Granby, CT | RTE 10 AND 189 FLOODED - CARS STRUCK |
| Aug 9, 1:53 PM EDT | FLOOD | Windsor Locks, CT | FARMINGTON RVR OUT OF BANKS JUNCTION OF I91 AND RTE 159 |
| Aug 9, 1:54 PM EDT | FLASH FLOOD | Chicopee, MA | BROADWAY AT ST JAMES CLOSED B C OF FLOODING |
| Aug 9, 1:54 PM EDT | FLASH FLOOD | Westfield, MA | NORTH ELM FLOODED |
| Aug 9, 1:54 PM EDT | FLASH FLOOD | West Springfield, MA | RIVERDALE ST ROUTE 5 FLOODED |
| Aug 9, 1:57 PM EDT | FLASH FLOOD | Chicopee, MA | MEADOW ST AND MEETINGHOUSE RD FLOODED |
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, 3.4 hours before the alert went out and 110 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
- 673 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 549 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.2
The text
As transmitted, in the capitals the NWS used until 2016.
103
WGUS51 KBOX 091521
FFWBOX
CTC003-013-MAC013-015-091815-
/O.NEW.KBOX.FF.W.0041.130809T1521Z-130809T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1121 AM EDT FRI AUG 9 2013
THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
HARTFORD COUNTY IN NORTHERN CONNECTICUT...
WESTERN TOLLAND COUNTY IN NORTHERN CONNECTICUT...
HAMPDEN COUNTY IN WESTERN MASSACHUSETTS...
SOUTHERN HAMPSHIRE COUNTY IN WESTERN MASSACHUSETTS...
* UNTIL 215 PM EDT
* AT 1116 AM EDT...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. THERE WERE LOCALLY
TORRENTIAL DOWNPOURS WITH RAINFALL RATES OF 1 TO 1.5 INCHES PER
HOUR. RAINFALL TOTALS OF 2 TO 3 INCHES ARE FORECAST ACROSS THE
CONNECTICUT RIVER VALLEY FROM NEAR NORTHAMPTON TO HARTFORD BY 215
PM. FLASH FLOODING OF SMALL STREAMS AND ALSO IN URBAN AREAS IS
LIKELY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES. PLEASE REPORT FLOODING TO YOUR LOCAL LAW
ENFORCEMENT AGENCY WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 4214 7305 4229 7300 4228 7233 4160 7237
4159 7247 4165 7251 4163 7271 4158 7275
4156 7294 4163 7293 4164 7299 4179 7302
4181 7295 4189 7294 4190 7291 4197 7289
4197 7303 4204 7301 4204 7305
$$
FIELD2 follow-up statements
975
WGUS71 KBOX 091652
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
1252 PM EDT FRI AUG 9 2013
CTC003-013-MAC013-015-091815-
/O.CON.KBOX.FF.W.0041.000000T0000Z-130809T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HARTFORD CT-TOLLAND CT-HAMPDEN MA-HAMPSHIRE MA-
1252 PM EDT FRI AUG 9 2013
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM EDT FOR
HARTFORD...WESTERN TOLLAND...HAMPDEN AND SOUTHERN HAMPSHIRE
COUNTIES...
AT 1243 PM EDT...DOPPLER RADAR CONTINUED TO INDICATE WIDESPREAD
SHOWERS AND STRONG THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE
WARNED AREA. THE STRONGEST STORMS WERE FROM CHICOPEE MASSACHUSETTS
SOUTHWESTWARD TO WESTFIELD...GRANVILLE...AND HARTLAND CONNECTICUT.
DOPPLER RADAR INDICATES RAINFALL RATES OF 1 TO 2 INCHES PER HOUR
FALLING IN THE HEAVIEST ACTIVITY. MORE THAN 3 INCHES OF RAIN HAS
ALREADY BEEN IN REPORTED IN SOUTHWICK MASSACHUSETTS. TOTALS
APPROACHING 5 INCHES ARE POSSIBLE BY 215 PM IN SOME AREAS.
SIGNIFICANT URBAN FLOODING IS LIKELY IN THE GREATER SPRINGFIELD
METRO AREA. IN ADDITION...SMALL STREAMS AND CREEKS ARE LIKELY TO
RISE OUT OF THEIR BANKS. OF PARTICULAR CONCERN ARE THE WEST BRANCH
OF THE WESTFIELD RIVER AND THE WEST BRANCH OF THE FARMINGTON RIVER
AND THEIR TRIBUTARIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
&&
LAT...LON 4214 7305 4229 7300 4228 7233 4160 7237
4159 7247 4165 7251 4163 7271 4158 7275
4156 7294 4163 7293 4164 7299 4179 7302
4181 7295 4189 7294 4190 7291 4197 7289
4197 7303 4204 7301 4204 7305
$$
FIELD961
WGUS71 KBOX 091720
FFSBOX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TAUNTON MA
120 PM EDT FRI AUG 9 2013
CTC003-013-MAC013-015-091815-
/O.CON.KBOX.FF.W.0041.000000T0000Z-130809T1815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HARTFORD CT-TOLLAND CT-HAMPDEN MA-HAMPSHIRE MA-
120 PM EDT FRI AUG 9 2013
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM EDT FOR
HARTFORD...WESTERN TOLLAND...HAMPDEN AND SOUTHERN HAMPSHIRE
COUNTIES...
AT 113 PM EDT...DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS FROM AGAWAM TO SOUTHWICK IN HAMPDEN COUNTY TO GRANBY
AND SIMSBURY IN HARTFORD COUNTY. THESE STORMS WERE PRODUCING
TORRIENTIAL RAIN WITH UP TO 2 INCHES PER HOUR.
TWO TO 4 INCHES OF RAIN HAVE ALREADY OCCURRED AND LOCAL AMOUNTS OF 4
TO 6 INCHES ARE POSSIBLE BY 215 PM IN SOME AREAS.
NUMEROUS CARS HAVE BEEN REPORTED STUCK IN THE WARNING AREA.
SIGNIFICANT URBAN FLOODING WILL OCCUR IN THE SPRINGFIELD AND
HARTFORD METROPOLITAN AREAS. IN ADDITION...SMALL STREAMS AND CREEKS
ARE LIKELY TO RISE OUT OF THEIR BANKS. OF PARTICULAR CONCERN ARE THE
WEST BRANCH OF THE WESTFIELD RIVER AND THE WEST BRANCH OF THE
FARMINGTON RIVER AND THEIR TRIBUTARIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES. AVOID STREAMS AND CREEKS. PLEASE REPORT
FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU CAN DO SO
SAFELY.
&&
LAT...LON 4214 7305 4229 7300 4228 7233 4160 7237
4159 7247 4165 7251 4163 7271 4158 7275
4156 7294 4163 7293 4164 7299 4179 7302
4181 7295 4189 7294 4190 7291 4197 7289
4197 7303 4204 7301 4204 7305
$$
FIELDThe office that day
Everything else NWS Boston/Norton, MA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 4:11 AM EDT | Flash Flood Watch | BOX | Bristol, Essex, Franklin, Hampden, Hampshire, Middlesex and 4 more | 15 hr |
| Aug 9, 7:31 AM EDT | Areal Flood Advisory | BOX | Franklin, Hampshire, Worcester | 119 min |
| Aug 9, 8:25 AM EDT | Areal Flood Advisory | BOX | Hampden | 3 hr |
| Aug 9, 9:43 AM EDT | Special Weather Statement | BOX | Bristol | 47 min |
| Aug 9, 10:44 AM EDT | Special Weather Statement | BOX | Bristol | 46 min |
| Aug 9, 11:35 AM EDT | Special Weather Statement | BOX | Norfolk, Plymouth | 40 min |
| Aug 9, 11:58 AM EDT | Areal Flood Advisory | BOX | Bristol, Norfolk, Plymouth, Suffolk, Worcester | 3 hr |
| Aug 9, 12:33 PM EDT | Flash Flood Warning | BOX | Franklin, Hampden, Hampshire, Worcester | 3 hr |
| Aug 9, 12:40 PM EDT | Special Weather Statement | BOX | Hampden | 50 min |
| Aug 9, 1:05 PM EDT | Special Weather Statement | BOX | Worcester | 40 min |
| Aug 9, 2:14 PM EDT | Flash Flood Warning | BOX | Hampden, Hampshire | 3 hr |
| Aug 9, 3:01 PM EDT | Areal Flood Advisory | BOX | Bristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk | 3 hr |
| Aug 9, 3:05 PM EDT | Areal Flood Advisory | BOX | Middlesex, Worcester | 3 hr |
| Aug 9, 4:29 PM EDT | Special Weather Statement | BOX | Barnstable | 46 min |
| Aug 9, 5:22 PM EDT | Areal Flood Advisory | BOX | Hampden | 3 hr |
| Aug 9, 8:15 AM EDT | Special Weather Statement | BOX | 45 min | |
| Aug 9, 1:54 PM EDT | Special Weather Statement | BOX | 36 min |
Nearby
Flash Flood Warnings in Massachusetts, 2013Flash Flood Warnings in Connecticut, 2013Every flash flood warning in 2013
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.