Alert archive / New York / Flash Flood Warnings in 1990

Flash Flood Warning 5, NWS Buffalo, NY

December 30, 1990Orleans County, New York

NWS Buffalo, NY issued this flash flood warning at Dec 30, 1990, 6:05 AM EST for Orleans County, New York. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Dec 30, 1990, 6:05 AM EST (11:05 UTC)
Expired
Dec 30, 1990, 7:00 PM EST
In force
13 hr
Issued by
NWS Buffalo, NY
Area
Whole counties

County Orleans County, NY

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 11.1 hours before the alert went out and 55 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, Buffalo Intl Airport, NY at 00:00Z on 1990-12-30Temperature 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, Buffalo Intl Airport, NY at 00:00Z on 1990-12-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 328 square meters per square second.1939587897117136Sfc1 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
543 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
328 m²/s²
0-3 km storm-relative helicity
347 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 Buffalo, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 29, 8:15 PM ESTFlash Flood WarningBUFErie23 hr
Dec 30, 6:05 AM ESTFlash Flood WarningBUFErie13 hr
Dec 30, 9:30 AM ESTFlash Flood WarningBUFChautauqua10 hr
Dec 30, 9:30 AM ESTFlash Flood WarningBUFNiagara10 hr
Dec 30, 9:30 AM ESTFlash Flood WarningBUFJefferson, Lewis10 hr
Dec 30, 9:30 AM ESTFlash Flood WarningBUFCattaraugus, Genesee, Wyoming10 hr
Dec 30, 9:30 AM ESTFlash Flood WarningBUFOneida10 hr

Nearby

Flash Flood Warnings in New York, 1990Every flash flood warning in 1990

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.