Alert archive / Massachusetts / Flash Flood Warnings in 1998

Flash Flood Warning 46, NWS Boston/Norton, MA

June 17, 1998Worcester County, Massachusetts

NWS Boston/Norton, MA issued this flash flood warning at Jun 17, 1998, 12:59 PM EDT for Worcester County, Massachusetts. It was in force for 3 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
Jun 17, 1998, 12:59 PM EDT (16:59 UTC)
Expired
Jun 17, 1998, 3:55 PM EDT
In force
3 hr
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Worcester County, MA

The radar

The Boston radar (KBOX), 77 km from the middle of the area, began a volume at 17:02 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

Albany, NY (KALY), launched 12:00Z, 5.0 hours before the alert went out and 162 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, Albany, NY at 12:00Z on 1998-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 328 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Albany, NY at 12:00Z on 1998-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 square meters per square second.1939Sfc1 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
328 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
572 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
75 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 171700
FFWBOS
MAC027-171955-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TAUNTON MA
1259 PM EDT WED JUN 17 1998

THE NATIONAL WEATHER SERVICE IN TAUNTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN WORCESTER COUNTY IN CENTRAL MASSACHUSETTS

* UNTIL 355 PM EDT

* AT 1250 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A THUNDERSTORM WITH VERY HEAVY RAIN NEAR HUBBARDSTON...MOVING
  NORTH NORTHEAST AT 20 MPH.

* COMMUNITIES TO BE AFFECTED...BARRE AND HUBBARDSTON

* THUNDERSTORMS WITH VERY HEAVY RAINFALL WILL SLOWLY MOVE NORTH
  NORTHEAST THROUGH NORTHERN WORCESTER COUNTY.  UP TO 4 INCHES OF
  RAIN WILL FALL IN THIS AREA BY 3 PM.  THE WARE RIVER WILL LIKELY
  EXPERIENCE RAPID RISES DUE TO THE HEAVY RAINFALL.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO RIVERS AND STREAMS.
EVEN THE SMALLEST STREAMS CAN BECOME KILLERS IN TORRENT@IAL RAINS.

EVT/WTB

Nearby

Flash Flood Warnings in Massachusetts, 1998Every flash flood warning in 1998

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.