Alert archive / New York / Flash Flood Warnings in 1999
Flash Flood Warning 18, NWS Albany, NY
NWS Albany, NY issued this flash flood warning at Sep 16, 1999, 3:59 PM EDT for Greene County, New York. 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
- Sep 16, 1999, 3:59 PM EDT (19:59 UTC)
- Expired
- Sep 17, 1999, 4:00 AM EDT
- In force
- 12 hr
- Issued by
- NWS Albany, NY
- Area
- Whole counties
County Greene County, NY
The radar
The Albany radar (KENX), 35 km from the middle of the area, began a volume at 20:00 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, 8.0 hours before the alert went out and 52 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 590 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Albany, NY wrote its last area forecast discussion before this flash flood warning went out at Sep 16, 1:55 PM EDT, 2 hours 4 minutes earlier.
Area forecast discussion, Sep 16, 1:55 PM EDT, 2 hours 4 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ALBANY NY 200 PM THU SEPT 16 1999 .DISC... NGM/ETA FURTHR W WITH FLOYD ON 12Z RUNS. SFC OBS SHW OLD FNT WELL DEFINED N OF CNTR WITH 70-75 DP TROPICAL AIR TO ITS E ACRS CNTRL/SRN DE AND SE HLF NJ. THIS MAY BE INDICATIVE OF TRACK NR OR EVEN JUST W OF MORE WWD MODEL FCSTS IN SHORT TERM (3-6 HRS). FNT BENDS EWD S OF LONG ISLAND SO A MORE ENE TO NE TURN IS LKLY EVENTLY. FRTHR W TRACK THRU 00Z WL KEEP HVY RA THREAT GOING. NO CHNGS IN FFA ANTICIPATED. WHILE FFG GUIDNC LOOKS HI...5-7 IN RA NEEDED FOR FLOODG...GIVEN DRY CONDS THIS SUMMER WE SHUD BE ABLE TO TAKE A LOT. HRCN GLORIA PRODUCED 5+ IN RA WHEN IT PASSED W/O MUCH OF ANY FLOODG. WITH FURTHR W TRACK LKLY...CONCERN GROWS FOR WIND PROBLEMS. LOW LVL INVERSION WL KEEP MUCH OF STG WINDS FM MIXING DOWN TO VLY AREAS. NGM/ETA FCSTG 40-50 KT WIND IN 925-900 MB LYR ACRS CTSKLS. WITH SATURATED GROUND WINDS BLO HW CRITERIA CUD BRNG DOWN TREES. LTG DETECTION SYS ALSO SHOWG CONVECTIVE ACTVTY SE NY WHICH CUD SERVE AS A MECHANISM FOR MIXING DOWN STG WINDS. OPTIONS ARE MULTIPLE. CUD JUSTIFY HWW WATCH/WARNING OR EVEN AN ADVSRY. WL OPT FOR HW WATCH AND RESTRICT WATCH TO SRN CTSKLS...HI TRRN OF ERN COL AND DUT CTY AND LITCHFIELD CTY. STAFF HAS BEEN TRYING TO CONTINUOUSLY EVALUATE 88D PRECIP PRODUCT ACCURACY. WE ARE IN TROPICAL Z-R MODE...BUT HAV NOTICED BRIGHT BAND CONTAMINATION BLO 12 K FT FREEZG LVL. BOTTOM LINE IS INCONSISTENCY. LOOKS LIKE OVERESTIMATG ON OUTER EDGES WHR BRGT BAND PROBLEMS....GOOD NEAR RADAR AND UNDERESTIMATING IN BETWEEN. .ALY...FLOOD WATCH...UNTIL NOON FRIDAY...FOR ALL AREAS EXCEPT...EXCEPT...EXCEPT...NYZ032-033-038-039-040-042. HI WIND WATCH THRU TONIGHT...NYZ058-063-061-066-MAZ001-CTZ001-
In the hours before
Local storm report, Sep 16, 3:55 PM EDT, 4 minutes before
NEW YORK STATEWIDE POLICE INFORMATION NETWORK
TROOP F
0355PM THU SEP 16 1999
FULS WLSR
02236 FILE 28 ULSTER POLICE DEPT NY0559500 SEP 16-99
TO ATTN ULSTER COUNTY AGENCIES
ALL AGENCIES BE ADVISED THAT ULSTERLANDING RD IN BETWEEN CASTAWAY LN AND
THE ULSTER COUNTY PARK IS CLOSED DUE TO A TREE ACROSS THE ROADWAY. EAST
KINGSTON FIRE DEPARTMENT ON THE SCENE AT THIS TIME AWAITING THE ARRIVAL OF
CENTRAL HUDSON
REFER TO UPD BE# UL-011275-99
AUTH SGT MATTHEW A TAGGARD 1554HRS
OPER - GRAMOGLIA,JAMES P 1554The office that day
Everything else NWS Albany, NY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 16, 4:25 PM EDT | Flash Flood Warning | ALY | Columbia, Dutchess, Ulster | 11 hr |
| Sep 16, 5:40 PM EDT | Flash Flood Warning | ALY | Ulster | 10 hr |
| Sep 16, 5:49 PM EDT | Flash Flood Warning | ALY | Albany, Rensselaer | 10 hr |
| Sep 16, 5:49 PM EDT | Flash Flood Warning | ALY | Northwest Hills Planning Region | 10 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; radar from the NEXRAD Level II archive.