Alert archive / New York / Flash Flood Warnings in 1999

Flash Flood Warning 29, NWS Albany, NY

September 17, 1999Warren County, Washington County, New York

NWS Albany, NY issued this flash flood warning at Sep 17, 1999, 4:16 AM EDT for Warren County, Washington County, New York. It was in force for 8 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 17, 1999, 4:16 AM EDT (08:16 UTC)
Expired: Sep 17, 1999, 12:00 PM EDT
In force: 8 hr
Issued by: NWS Albany, NY
Area: Whole counties

Counties Warren County, NY, Washington County, NY

The radar

The Albany radar (KENX), 101 km from the middle of the area, began a volume at 08:17 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

Gray, ME (KGYX), launched 00:00Z, 8.3 hours before the alert went out and 276 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 64 kt
0-1 km storm-relative helicity: 356 m²/s²
0-3 km storm-relative helicity: 683 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KALB 170823
FFWALB
MAC003-NYC001-021-039-083-091-093-095-113-115-VTC003-025-171910-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE ALBANY NY
416 AM EDT FRI SEP 17 1999

...THE NATIONAL WEATHER SERVICE HAS EXTENDED THE FLOOD WARNING
THROUGH THIS MORNING FOR MUCH OF EASTERN NEW YORK AND ADJACENT
WESTERN NEW ENGLAND...

THE FLOOD WARNING INCLUDES ALBANY...COLUMBIA...GREENE...RENSSELAER
...SARATOGA...SCHENECTADY...SCHOHARIE...WARREN AND WASHINGTON
COUNTIES IN NEW YORK...BENNINGTON AND WINDHAM COUNTIES IN VERMONT
AND BERKSHIRE COUNTY IN MASSACHUSETTS.

EXTREMELY HEAVY RAIN FELL ACROSS MUCH OF EASTERN NEW YORK AND
ADJACENT WESTERN NEW ENGLAND THURSDAY AND THURSDAY NIGHT IN ADVANCE
OF FLOYD. RAINFALL AMOUNTS OF 5 TO 12 INCHES WERE COMMON ACROSS THE
REGION WITH THE HIGHEST RAINFALL TOTALS IN THE CATSKILLS. AN
ADDITIONAL HALF INCH TO AN INCH OF RAIN WILL FALL THIS MORNING
FURTHER COMPOUNDING THE FLOOD PROBLEM. MANY STREAMS AND LOW LYING
AREAS HAVE ALREADY FLOODED AND DRIER AIR IS NOT EXPECTED TO MOVE
INTO THE REGION UNTIL THIS AFTERNOON.

AREA RESIDENTS SHOULD MONITOR FLOOD CONDITIONS... AND BE PREPARED
TO MOVE TO HIGHER GROUND... SHOULD FLOOD WATERS THREATEN. IF FLASH
FLOODING IS OBSERVED... ACT QUICKLY. MOVE TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.

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 17, 3:48 AM EDT, 28 minutes earlier.

Area forecast discussion, Sep 17, 3:48 AM EDT, 28 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ALBANY NY
345 AM FRI SEPT 17 1999

WRKZFP AVBL (SEE LTR ONE). ZONES MAY BE A TD LT...SHRTLY AFT 4AM.

.DISC...TS FLOYD NR WORCESTER MA AND MVG TO NE. HOWEVER STRG UA LW
ATTEMPTG 2 CAPTURE FEATURE. FLOYD IS IN THE PROCESS OF BECOMING
EXTRATROPICAL. HOWEVER IT HAS DROPPED ITS LOAD ON OUR FA (AS WELL
MANY OTHERS). RAFL AMNTS RANGED FM 3 TO 11 INCHES WITH CAIRO IN
GREENE COUNTY COMING IN WITH THE WET HONORS. THE 5.60 INCH THAT FELL
ON SEP 16 AT THE ALB INTL ARPT MAY VRY WELL BE THE ALL TIME RECORD
FOR ALY WE WL CONFIRM THAT LTR.

EITHER WAY DROUGHT OF 99 IS ALL BUT OVR NOW WE HV SOME OF THE
GREATEST FLDG WE HV HD IN QUITE SOME TIME. THE HOOSIC RVR AND
TRIBUTARIES AFFECTED BY 10 INCHES OF RAFL ARE AFFECTED THE MOST. FLD
WATCHES WB REPLACED BY FLD WARNINGS IN THIS PCKAGE. MOISTURE HAS
ACTUALLY HALTED ITS NEWD PROGRESSION...AS WSR-88D HAS FILLED BCK IN.
THIS IS A BIT REMINICENT OF WHAT HAPPENING DRG AGNES BUT HOPEFULLY
NOT TO ANYWHERE NEAR THAT EXTREME. H20 LP SHOWS DRY AIR INJECTG BACK
INTO SYSTEM WHICH SHOULD AT LST CUT RAINFALL AMNTS DWN. BUT DAMAGE
DONE SO FFWS STL NEEDED.

PRES GRAD STL VRY TIGHT OVR FA. DRG HGHT OF WND (PK WND OF 43 AT KALY
ERLIER) GRAD WAS ABT 13 KM/1MB ACRS OUR CNTRL RGN GRAD PROGED 2B
CLOSE 2 THAT THRU THIS AM. ALSO...WE WL BE IN MORE FAVORABLE SW QUAD
OF CYCLONIC CIRCULATION WHICH USUALLY YIELD THE HIGHER WIND. ALSO
WEAK CAA. LKG AT BOTH ETA NGM AND UPSTRM SOUNDGS SUPPORT WNDS AT OR
VRY CLS TO MAX GUSTS OF 50 MPH TO REACH THE GRND IN SOME PLCS. NO
REAL INV PRESENT...THOUGH LPS RT WB CLOSER 2 WET THAN DRY. HOWEVER
MOHAWK EFFECT WL ENHANCE THE NWRLY FLW IN THE CD. HIER TRRN SURROUNDG
CD AND PTS E WL ALSO BE UNDER THE GUN AS WELL AS ALL AREAS NE. ONLY
PLC I WL OMIT HIGH WIND WARNING WB IN THE MID HUDSON VLY AS CATSKILLS
SHOULD HELP EFFECTIVELY DIMINISH WND EFFECT THERE. ALSO WE HV 2
CONSIDER THAT LEAFED TREES HV BEEN WEAKEN BY WET GROUND. THIS WB A
MARGINAL EVENT AT BEST BUT WE FEEL ITS BEST 2 REISSUE.

WEATHER GETS BETTER LTR TDY AND ESP TON...AS HI BLDS IN ALG WITH GD
DVM AND DRYG. GRAD RELAXES. IN FACT...DECOUPLG MAY TAKE PLC N AND W
OF CD. STL A BIT OF A BRZ IN THE MOHAWK VLY AND CD. NO FG PLND TO OVN
PCKAGE. BEAUTIFUL DAY ON TAP SAT WITH LOTS OF SUN (A FEW FAIR WX CLDS
OVR HIR TRRN).

WL GO A CAT LOER THAN FWC NUMBERS IN SOME CASES TDY. (FANS DON/T HV A
CLUE). THIS IS DUE TO LOTS OF CLDS AND A COOL BNDRY PRESENT. WL GO
CLS TO FWC NUMBERS THEREAFTER. NO CHANGES PLND 2 EXTENDED.

.ALB...FFW THROUGH NOON...NYZ041>043-047>052-053-054-058>061-VTZ013-
                        014-MAZ001
       HHW THROUGH 3 PM EDT...CTZ001-MAZ001-VTZ-013-014-NYZ041>043-
                       048>054-058-061-063-066
HWJIV

In the hours before

Local storm report, Sep 16, 10:16 PM EDT, 6 hours before

NEW YORK STATEWIDE POLICE INFORMATION NETWORK
TROOP W
1016PM     THU SEP 16 1999
WREN WLSR QHQT QTRF WAPT APTS
00006    FILE 28   RENSSELAER COUNTY BPS NY041013P           SEP 16-99
TO       NATIONAL WEATHER SERVICE
         ATTENTION SEMO DUTY OFFICER

                   TROPICAL STORM FLOYD

DETAILS CONCERNING EVENT: 1 LOCAL SHELTER HAS BEEN SET UP AT THE
ARMORY IN HOOSIK FALLS VILLAGE

COUNTY(S) AFFECTED: RENSSELAER COUNTY REPORTING FOR RENSSELAER COUNTY

LOCATION (INCLUDING TOWN AND NEAREST ROAD): THE ENTIRE COUNTY

DATE AND TIME CONDITION STARTED: 16 SEPTEMBER 1999 APPROX 1500 HOURS
DATE AND TIME CONDITION ENDED: STILL CONTINUING
EXTENT OF DAMAGE OR AREAS IN DANGER: LOCALIZED FLOODING, SEVERAL TREES DOWN,
NUMEROUS POWER LINES DOWN

NUMBER KILLED:          NUMBER INJURED:
REMARKS: NUMEROUS EMERGENCY SERVICE AGENCIES IN OPERATION

:

AUTH PHONE #: 518 270-5252

AUTH COMMUNICATION SUPERVISOR T SMITH

OPER - DAVOCK,BERNARD E               2216

Local storm report, Sep 17, 1:55 AM EDT, 2 hours 21 minutes before

NEW YORK STATEWIDE POLICE INFORMATION NETWORK
TROOP B
0155AM     FRI SEP 17 1999
BESO WLSR APTS
02459    FILE 28   ESSEX CO SO NY0150000                     SEP 17-99
TO       DESTINATION(S) AGENCY TITLE

      A STATE OF EMERGENCY HAS BEEN DECLARED IN THE TOWNS OF
      PORT HENRY AND MORIAH IN ESSEX COUNTY. ALL ROADS ARE CLOSED.
      NO UNNECESSARY TRAFFIC.

AUTH SHERIFF HENRY HOMMES                  0153
OPER - LAROCK, DONALD                 0154

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 16, 8:59 PM EDT	Flash Flood Warning	ALY	Schenectady, Schoharie	7 hr
Sep 16, 8:59 PM EDT	Flash Flood Warning	ALY	Saratoga, Washington	7 hr
Sep 17, 4:16 AM EDT	Flash Flood Warning	ALY	Albany, Saratoga, Schenectady, Schoharie	8 hr
Sep 17, 4:16 AM EDT	Flash Flood Warning	ALY	Columbia, Greene, Rensselaer	8 hr

Nearby

Flash Flood Warnings in New York, 1999 Every 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.