Alert archive / New York / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 122, NWS Albany, NY

September 6, 2014Dutchess County, New York

NWS Albany, NY issued this severe thunderstorm warning at Sep 6, 2014, 7:42 PM EDT for Dutchess County, New York. It was in force for 33 min. 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 6, 2014, 7:42 PM EDT (23:42 UTC)
Expired
Sep 6, 2014, 8:15 PM EDT
In force
33 min
Issued by
NWS Albany, NY
Area
Storm-based polygon

County Dutchess County, NY

The radar

The Albany radar (KENX), 95 km from the middle of the area, began a volume at 23:43 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 watch it was issued in

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

IssuedProductOfficeLasted
Sep 6, 1:22 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 11.7 hours before the alert went out and 103 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, Albany, NY at 12:00Z on 2014-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 685 joules per kilogram.LCLLFCEL10008507005003002001001 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, Albany, NY at 12:00Z on 2014-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 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
685 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.4

Open this sounding in Storm Lab

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.

NWS Albany, NY wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 6, 7:17 PM EDT, 25 minutes earlier.

Area forecast discussion, Sep 6, 7:17 PM EDT, 25 minutes before
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Hazardous weather outlook, Sep 6, 6:35 PM EDT, 1 hour 7 minutes before
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In the hours before

Special weather statement, Sep 6, 2:23 PM EDT, 5 hours 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
223 PM EDT SAT SEP 6 2014

CTZ001-013-NYZ065-066-061900-
NORTHERN LITCHFIELD CT-SOUTHERN LITCHFIELD CT-WESTERN DUTCHESS NY-
EASTERN DUTCHESS NY-
223 PM EDT SAT SEP 6 2014

...A STRONG THUNDERSTORM IN

  LITCHFIELD COUNTY IN NORTHERN CONNECTICUT...
  DUTCHESS COUNTY IN EAST CENTRAL NEW YORK...

AT 220 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM CAPABLE OF PRODUCING...AROUND HALF INCH HAIL...FREQUENT
LIGHTNING...AND HEAVY RAIN.  THIS STORM WAS LOCATED NEAR PLEASANT
VALLEY...OR ABOUT 6 MILES NORTHEAST OF POUGHKEEPSIE...AND MOVING EAST
AT 30 MPH.

THE THUNDERSTORM WILL BE NEAR...
MILLBROOK BY 235 PM EDT
DOVER PLAINS AND 8 MILES NORTH OF WINGDALE BY 245 PM EDT
AMENIA AND 9 MILES NORTH OF GAYLORDSVILLE BY 250 PM EDT
KENT BY 255 PM EDT
CORNWALL BRIDGE AND 7 MILES NORTHWEST OF NEW PRESTON BY 300 PM EDT

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
SATURDAY EVENING FOR NORTHERN CONNECTICUT AND WESTERN MASSACHUSETTS
AND EAST CENTRAL NEW YORK AND SOUTHERN VERMONT.

LAT...LON 4164 7394 4182 7394 4188 7332 4164 7331
      4164 7349 4166 7351 4164 7352
TIME...MOT...LOC 1822Z 264DEG 28KT 4175 7381

LFM
Special weather statement, Sep 6, 3:42 PM EDT, 4 hours before
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Local storm report, Sep 6, 4:35 PM EDT, 3 hours 7 minutes before
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Local storm report, Sep 6, 4:37 PM EDT, 3 hours 5 minutes before
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Local storm report, Sep 6, 4:39 PM EDT, 3 hours 3 minutes before
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Special weather statement, Sep 6, 7:30 PM EDT, 12 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 2:23 PM EDTSpecial Weather StatementALYDutchess37 min
Sep 6, 2:38 PM EDTSevere Thunderstorm WarningALYDutchess67 min
Sep 6, 7:30 PM EDTSpecial Weather StatementALYPutnam30 min

Nearby

Severe Thunderstorm Warnings in New York, 2014Every severe thunderstorm warning in 2014

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.