Flash Flood Warning 18, NWS Boston/Norton, MA

Issued

Sep 16, 1999, 3:17 PM EDT (19:17 UTC)

Expired

Sep 17, 1999, 3:00 AM EDT

In force

12 hr

Issued by

NWS Boston/Norton, MA

Area

Whole counties

County Capitol Planning Region, CT

The Brookhaven radar (KOKX), 109 km from the middle of the area, began a volume at 19:20 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.

000 
TTAA00 KBOX 161917
FFWBOS
CTC003-170700-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
317 PM EDT THU SEP 16 1999

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLOOD WARNING FOR SMALL RIVERS AND STREAMS FOR...  
  HARTFORD COUNTY IN NORTHERN CONNECTICUT
    INCLUDING HARTFORD

* UNTIL 300 AM EDT.

* AT 315 PM EDT...A SKYWARN WEATHER SPOTTER IN AVON...IN WESTERN HARTFORD
  COUNTY...REPORTED SIGNIFICANT RISES ON SMALL RIVERS AND STREAMS.
  DOPPLER RADAR ESTIMATED AS MUCH AS 2.5 INCHES OF RAIN HAS ALREADY
  FALLEN...WITH ADDITIONAL HEAVY RAIN LIKELY THROUGH THE EVENING.
 
FLOODING IS EXPECTED TO DEVELOP LATE THIS AFTERNOON...AND IS 
EXPECTED TO CONTINUE THROUGH THE EARLY MORNING HOURS OF FRIDAY.
THE QUINNIPIAC RIVER IN PLAINVILLE AND SOUTHINGTON IS EXPECTED TO
RISE OUT OF ITS BANKS BEFORE 6 PM.
  
FLOODING OF POOR DRAINAGE AREAS CAN ALSO BE EXPECTED.

NEVER ATTEMPT TO CROSS BRIDGES OR ROADS WHERE WATER COVERS THE
ROADWAY. IT ONLY TAKES A FOOT OR TWO OF WATER TO WASH MOST CARS AWAY.
KNOW SOME ALTERNATE ROUTES BEFORE YOU START TRAVELING IN CASE ROADS
HAVE BEEN FLOODED AND CLOSED.
$$

JWD/JL

NWS Boston/Norton, MA wrote its last area forecast discussion before this flash flood warning went out at Sep 16, 3:10 PM EDT, 7 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAUNTON MA
310 PM EDT THU SEP 16 1999

SFC OBS SHOW FLOYD CENTER MOVING OFF DELMARVA COAST.  HEAVY RAIN
EXTENDS FROM VA COAST NEWD TO NEW ENGLAND WITH AREAS OF VERY HEAVY
RAIN.  AS USUALLY HAPPENS WITH THESE STORMS ON THE NE COAST...RAIN
IS CONCENTRATING TO THE LEFT OF THE TRACK...WITH CAPE COD MOSTLY
FOG AND STRATUS WITH SCATTERED SHOWERS...ACK EVEN REPORTING BKN
CLDS  DIFFERENT STORY ON THIS SIDE OF THE CANAL WITH STP SO FAR IN
ABV 1.5 INCHES WITH AREAS OVER 2.5 INCHES.  EXPECT THIS TO CONTINUE
UNTIL AFTER FLOYD PASSES.  SUBJECT TO NHC TRACK ADJUSTMENT...WOULD
ESTIMATE THIS FROM FLOYD FORWARD SPEED AND EXTEND OF PCPN ALONG
COAST...WOULD ESTMT PCPN ENDING ARND 1-2 AM SOUTH AND 4-5 AM NORTH.
CONTINUE FFA.

OTHER ISSUE TNGT IS WIND.  SFC OBS SHOW LAND WINDS AHEAD OF STORM IN
THE RANGE OF 20-30 KTS (25-35 MPH) SUSTAINED WITH GUSTS IN THE L40S
OF KTS.  OCEAN WINDS SUSTAINED 45 KTS WITH GUSTS TO AT LEAST 55 KTS.
WL MAKE FINAL DECISION ON WIND HEADLINES AFTER STORM TRACK IS
OFFICIAL...GENERALLY MAX WINDS OF 20-30G45 FAR NW...25-35G50 TO
LEFT OF TRACK...AND 35-50G65 TO RIGHT OF TRACK.

PCPN CLRS OUT FAST...THEN NW FLOW INTO REGION.  UPPER TROF REMAINS
OVER F/A THRU 18Z FRI AND THIS SHOULD PROMOTE MIXING/MOMENTUM
TRANSFER TO SFC.  FCST OF WINDS ALOFT FOR TMW SHOW NW WINDS OF 30 KTS
NEAR SFC AND UP TO 55 KTS ALOFT...SO WILL FCST NW 30-40 WITH G50.

HIGH PRES THEN BUILDS DRY WEATHER ACRS REGION FOR WEEKEND.

ZFP WL BE HELD UNTIL 5PM OR TIL RELEASE OF 5 PM NHC FLOYD STATEMENT.
WL UPDATE AFD WITH COORD CODING BEFORE ZFP RELEASE.

.BOX...FFA...THRU FRI...ALL ZONES
       REMAINDER OF CODING AWAITS NHC COORDINATION

WTB

Flash Flood Warnings in Connecticut, 1999Every flash flood warning in 1999

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.