Alert archive / Vermont / Flash Flood Warnings in 1998

Flash Flood Warning 51, NWS Burlington, VT

March 31, 1998Addison County, Rutland County, Vermont

NWS Burlington, VT issued this flash flood warning at Mar 31, 1998, 3:23 PM EST for Addison County, Rutland County, Vermont. It was in force for 12 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
Mar 31, 1998, 3:23 PM EST (20:23 UTC)
Expired
Apr 1, 1998, 3:30 AM EST
In force
12 hr
Issued by
NWS Burlington, VT
Area
Whole counties

Counties Addison County, VT, Rutland County, VT

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 8.4 hours before the alert went out and 138 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 1998-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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 1998-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
11 J/kg
Mixed-layer CIN
-435 J/kg
Mixed-layer LCL
1896 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
127 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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Burlington, VT wrote its last area forecast discussion before this flash flood warning went out at Mar 31, 1:40 PM EST, 1 hour 43 minutes earlier.

Area forecast discussion, Mar 31, 1:40 PM EST, 1 hour 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BURLINGTON VT
140 PM EST TUE MAR 31 1998

FLOODING CONTS ACRS MUCH OF FA. WITH PCPN XPCTD TMRW FFA WL RMN IN
EFFECT.

LOW IN MIDWEST WL CONT TO FILL AND DRIFT TO NE NXT 48 HRS.  FNTL
BNDRY WL RMN ACRS NRN ZNS AND ACT AS A FOCUS FOR CNVCTN LTR TDY INTO
WED.  ETA/NGM SHW .50-1.00 INCH RAIN COMING IN MAINLY DURING WED.
THIS WL ONLY EXACERBATE THE FLOODING PRBLMS.

CD/OCCLD FNT WL MV THRU FA AFT 00Z THU.  BY 12Z THU UPR LVL LO WL
STL BE OVR GRT LKS SO PCPN LKLY TO CONT DURING THU.  SHUD PRBLY XTND
FFA INTO THU.

FWC TEMPS LOOK OK TNT THRU WED NGT.  TEMPS ON THU SHUD HOLD STDY OR
FALL SLWLY.

MCGILL

The office that day

Everything else NWS Burlington, VT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 31, 3:01 AM ESTFlash Flood WarningBTVEssex12 hr
Mar 31, 4:24 AM ESTFlash Flood WarningBTVFranklin, Lamoille, Orleans11 hr
Mar 31, 4:24 AM ESTFlash Flood WarningBTVRutland11 hr
Mar 31, 8:37 AM ESTFlash Flood WarningBTVAddison12 hr
Mar 31, 9:07 AM ESTFlash Flood WarningBTVCaledonia11 hr
Mar 31, 3:23 PM ESTFlash Flood WarningBTVCaledonia, Essex, Franklin, Lamoille, Orleans12 hr
Mar 31, 3:23 PM ESTFlash Flood WarningBTVOrange12 hr
Mar 30, 10:15 PM ESTFlash Flood WarningBTVEssex11 hr
Mar 31, 4:24 AM ESTFlash Flood WarningBTVClinton, Franklin11 hr
Mar 31, 4:24 AM ESTFlash Flood WarningBTVSt. Lawrence11 hr
Mar 31, 3:23 PM ESTFlash Flood WarningBTVFranklin, St. Lawrence12 hr
Mar 31, 3:23 PM ESTFlash Flood WarningBTVClinton12 hr

Nearby

Flash Flood Warnings in Vermont, 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.