Alert archive / New York / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 9, NWS Albany, NY

May 20, 1998Dutchess County, Ulster County, New York

NWS Albany, NY issued this severe thunderstorm warning at May 20, 1998, 5:01 PM EDT for Dutchess County, Ulster County, New York. It was in force for 49 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 20, 1998, 5:01 PM EDT (21:01 UTC)
Expired: May 20, 1998, 5:50 PM EDT
In force: 49 min
Issued by: NWS Albany, NY
Area: Whole counties

Counties Dutchess County, NY, Ulster County, NY

The radar

The Albany radar (KENX), 85 km from the middle of the area, began a volume at 21:02 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.

What was reported inside it

Time	Report	Where
May 20, 5:17 PM EDT	Hail 0.75	Fishkill, NY
May 20, 5:19 PM EDT	Hail 0.75	Beacon, NY
May 20, 5:25 PM EDT	Thunderstorm Wind	Poughkeepsie, NY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 9.0 hours before the alert went out and 97 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: 1160 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 78 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.

232 
WUUS1 KALB 202103 RRA
SVRALB
NYC027-111-202150-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ALBANY NY
501 PM EDT WED MAY 20 1998

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ULSTER COUNTY IN EASTERN NEW YORK
  SOUTHERN DUTCHESS COUNTY IN EASTERN NEW YORK

* UNTIL 550 PM EDT

* AT 500 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEW PALTZ... MOVING EAST SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BEACON...WAPPANGERS FALLS...AND POUGHKEEPSIE 515 PM EDT

DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

HTS

What forecasters said that day

The local office's own words before this severe thunderstorm 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, May 20, 4:52 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE ALBANY NY
452 PM EDT WED MAY 20 1998

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0448 PM    CHESTERTOWN               NY   .88 INCH HAIL
05/20/98   WARREN                         NY STATE POLICE REPORTED
                                          NICKEL SIZE HAIL IN
                                          CHESTERTOWN AT 1620 EDT.

ALBLSRALB
TTAA00 KALB 202203

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ALBANY NY
602 PM EDT WED MAY 20 1998
TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0517 PM    FISHKILL                  NY   .75 INCH HAIL
05/20/98   DUTCHESS                       DIME-SIZE HAIL WITH VERY
                                          HEAVY RAIN

0519 PM    BEACON                    NY   .75 INCH HAIL
05/20/98   DUTCHESS

0525 PM    POUGHKEEPSIE              NY   WIND DAMAGE
05/20/98   DUTCHESS                       DOWNED 3 INCH DIAMETER
                                          TREE LIMBS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 1:35 PM EDT	Severe Thunderstorm Warning	ALY	Hamilton	50 min
May 20, 4:07 PM EDT	Severe Thunderstorm Warning	ALY	Warren, Washington	53 min

Nearby

Severe Thunderstorm Warnings in New York, 1998 Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.