Alert archive / New York / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 39, NWS Albany, NY

July 1, 2001Rensselaer County, Saratoga County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jul 1, 2001, 2:42 PM EDT for Rensselaer County, Saratoga County, New York. It was in force for 63 min. 2 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: Jul 1, 2001, 2:42 PM EDT (18:42 UTC)
Expired: Jul 1, 2001, 3:45 PM EDT
In force: 63 min
Issued by: NWS Albany, NY
Area: Whole counties

Counties Rensselaer County, NY, Saratoga County, NY

The radar

The Albany radar (KENX), 47 km from the middle of the area, began a volume at 18:44 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	Remark
Jul 1, 3:20 PM EDT	Thunderstorm Wind	Milton Center, NY
Jul 1, 3:30 PM EDT	Thunderstorm Wind	Troy, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 1, 10:30 AM EDT	Severe Thunderstorm Watch	SPC	6 hr
Jul 1, 2:15 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 6.7 hours before the alert went out and 27 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: 1136 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 609 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KALY 011842
SVRALY

NYC083-091-011945-

BULLETIN - EAS ACTIVATION REQUIRED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ALBANY NY
242 PM EDT SUN JUL 1 2001

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL RENSSELAER COUNTY IN EASTERN NEW YORK
  SARATOGA COUNTY IN EASTERN NEW YORK

* UNTIL 345 PM EDT

* AT 238 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR TROY...OR ABOUT OVER WATERVLIET...MOVING
  EAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CENTER BRUNSWICK AND POESTENKILL AT 245 PM EDT
  RAYMERTOWN AND PITTSTOWN AT 250 PM EDT
  GRAFTON AND BABCOCK LAKE AT 255 PM EDT
  PETERSBURG AND BERLIN AT 300 PM EDT

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND VERY HEAVY
RAIN. PEOPLE OUTSIDE SHOULD MOVE TO A SUBSTANTIAL SHELTER NOW.D

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 9:43 AM EDT	Severe Thunderstorm Warning	ALY	Fulton, Hamilton, Herkimer	62 min
Jul 1, 12:00 PM EDT	Severe Thunderstorm Warning	ALY	Washington	60 min
Jul 1, 12:08 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	67 min
Jul 1, 1:11 PM EDT	Severe Thunderstorm Warning	ALY	Herkimer	79 min
Jul 1, 1:41 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	64 min
Jul 1, 2:10 PM EDT	Severe Thunderstorm Warning	ALY	Montgomery, Schenectady, Schoharie	80 min
Jul 1, 2:34 PM EDT	Severe Thunderstorm Warning	ALY	Albany	56 min
Jul 1, 2:57 PM EDT	Severe Thunderstorm Warning	ALY	Ulster	78 min
Jul 1, 3:16 PM EDT	Severe Thunderstorm Warning	ALY	Columbia	59 min
Jul 1, 3:24 PM EDT	Severe Thunderstorm Warning	ALY	Washington	66 min
Jul 1, 3:32 PM EDT	Severe Thunderstorm Warning	ALY	Dutchess	58 min
Jul 1, 3:38 PM EDT	Severe Thunderstorm Warning	ALY	Rensselaer	52 min

Nearby

Severe Thunderstorm Warnings in New York, 2001 Every severe thunderstorm warning in 2001

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.