Alert archive / Connecticut / Frost Advisories in 2008

Frost Advisory 8, NWS New York, NY

October 21, 2008Suffolk County, New York; Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut

NWS New York, NY issued this frost advisory at Oct 21, 2008, 4:04 AM EDT for Suffolk County, New York; Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Southeastern Connecticut Planning Region, Connecticut. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Oct 21, 2008, 4:04 AM EDT (08:04 UTC)
Expired: Oct 21, 2008, 9:00 AM EDT
In force: 5 hr
Issued by: NWS New York, NY

Counties Lower Connecticut River Valley Planning Region, CT, Naugatuck Valley Planning Region, CT, Southeastern Connecticut Planning Region, CT, Suffolk County, NY

The radar

The Brookhaven radar (KOKX), 59 km from the middle of the area, began a volume at 08:01 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

Chatham, MA (KCHH), launched 00:00Z, 8.1 hours before the alert went out and 221 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: 2592 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -71 m²/s²
0-3 km storm-relative helicity: -41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New York, NY wrote its last area forecast discussion before this frost advisory went out at Oct 21, 2:41 AM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Oct 21, 2:41 AM EDT, 1 hour 23 minutes before

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Hazardous weather outlook, Oct 20, 3:09 PM EDT, 12 hours 55 minutes before

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The office that day

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

Issued	Product	Office	Lasted
Oct 21, 5:36 AM EDT	Small Craft Advisory	OKX	58 hr
Oct 21, 4:22 PM EDT	Gale Warning	OKX	13 hr
Oct 21, 6:10 PM EDT	Special Marine Warning	OKX	65 min
Oct 21, 7:12 PM EDT	Special Marine Warning	OKX	48 min

Nearby

Frost Advisories in Connecticut, 2008 Frost Advisories in New York, 2008 Every frost advisory in 2008

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.