Alert archive / Connecticut / Flash Flood Warnings in 1999

Flash Flood Warning 10, NWS Boston/Norton, MA

February 3, 1999Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this flash flood warning at Feb 3, 1999, 1:17 AM EST for Northeastern Connecticut Planning Region, Connecticut. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 3, 1999, 1:17 AM EST (06:17 UTC)
Expired
Feb 3, 1999, 7:15 AM EST
In force
6 hr
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Northeastern Connecticut Planning Region, CT

The radar

The Boston radar (KBOX), 71 km from the middle of the area, began a volume at 06:16 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

Brookhaven, NY (KOKX), launched 00:00Z, 6.3 hours before the alert went out and 130 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 1999-02-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 1999-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 548 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
451 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
548 m²/s²
0-3 km storm-relative helicity
610 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KBOS 030619
FFWBOS
CTC013-015-031215-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
117 AM EST WED FEB 3 1999

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLOOD WARNING FOR...
  EASTERN TOLLAND COUNTY IN NORTHEASTERN CONNECTICUT
  WESTERN WINDHAM COUNTY IN NORTHEASTERN CONNECTICUT

* UNTIL 715 AM EST

* AT 110 AM EST... A STREAM GAGE INDICATED THE MT HOPE RIVER NEAR
  WARRENVILLE WAS ABOUT TO GO OVER ITS BANKS.  FLOODING IN THIS
  AREA WOULD AFFECT THE COMMUNITIES OF WARRENVILLE...MT HOPE...AND
  ATWOODVILLE.

  A FLOOD WARNING MEANS FLOODING IS IMMINENT OR ALREADY OCCURRING.
  BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
  DANGE`RS OF FLOODS. NEVER ATTEMPT TO CROSS AREAS IN WHICH WATER
  COVERS THE ROADWAYS.

WTB

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 2, 7:37 PM ESTFlash Flood WarningBOXCapitol Planning Region8 hr

Nearby

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

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.