Alert archive / Massachusetts / Flash Flood Warnings in 1996

Flash Flood Warning 21, NWS Boston/Norton, MA

August 27, 1996Hampshire County, Massachusetts

NWS Boston/Norton, MA issued this flash flood warning at Aug 27, 1996, 5:40 PM EDT for Hampshire County, Massachusetts. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 27, 1996, 5:40 PM EDT (21:40 UTC)
Expired
Aug 27, 1996, 6:45 PM EDT
In force
65 min
Issued by
NWS Boston/Norton, MA
Area
Whole counties

County Hampshire County, MA

The nearest sounding before it

Albany, NY (KALB), launched 12:00Z, 9.7 hours before the alert went out and 103 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 1996-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 1996-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.193958Sfc1 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
939 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 4:52 PM EDTSevere Thunderstorm WarningBOXFranklin, Hampshire53 min
Aug 27, 5:34 PM EDTFlash Flood WarningBOXHampshire4 hr
Aug 27, 5:40 PM EDTSevere Thunderstorm WarningBOXHampshire65 min
Aug 27, 6:21 PM EDTSevere Thunderstorm WarningBOXHampden69 min

Nearby

Flash Flood Warnings in Massachusetts, 1996Every flash flood warning in 1996

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.