Alert archive / New York / Flash Flood Warnings in 1999

Flash Flood Warning 1, NWS Albany, NY

January 18, 1999Dutchess County, New York

NWS Albany, NY issued this flash flood warning at Jan 18, 1999, 11:00 PM EST for Dutchess County, New York. It was in force for 5 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
Jan 18, 1999, 11:00 PM EST (04:00 UTC)
Expired
Jan 19, 1999, 4:00 AM EST
In force
5 hr
Issued by
NWS Albany, NY
Area
Whole counties

County Dutchess County, NY

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 4.0 hours before the alert went out and 124 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 1999-01-19Temperature 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 km15 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 1999-01-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939587897117Sfc1 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
484 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
194 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.

In the hours before

Local storm report, Jan 18, 6:16 PM EST, 4 hours 44 minutes before
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Local storm report, Jan 18, 8:52 PM EST, 2 hours 8 minutes before
NEW YORK STATEWIDE POLICE INFORMATION NETWORK
TROOP C
0851PM     MON JAN 18 1999
CJOH WLSR
00125    FILE 28   JOHNSON CITY  NY0030300                   JAN 18-99
TO       NATIONAL WEATHER SERVICE

BE ADVISED THAT ALL STREETS IN THE VILLAGE OF JOHNSON CITY NY ARE COVERED WITH
BLACK ICE.  SEVERAL ACCIDENTS HAVE BEEN REPORTED IN THE AREA.  DPW CREWS ARE
ENROUTE OUT.

AUTH SGT. DARREN C. HANNON
OPER - HANNON,DARREN C                2050

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 19, 1:44 AM ESTFlash Flood WarningALYColumbia7 hr
Jan 19, 4:13 AM ESTFlash Flood WarningALYDutchess8 hr

Nearby

Flash Flood Warnings in New York, 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.