Alert archive / New York / Special Weather Statements in 2020

Special Weather Statement, NWS Buffalo, NY

December 29, 2020Monroe County, Orleans County, Wayne County, New York

NWS Buffalo, NY issued this special weather statement at Dec 29, 2020, 5:14 AM EST for Monroe County, Orleans County, Wayne County, New York. It was in force for 76 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Dec 29, 2020, 5:14 AM EST (10:14 UTC)
Expired: Dec 29, 2020, 6:30 AM EST
In force: 76 min
Issued by: NWS Buffalo, NY

Counties Monroe County, NY, Orleans County, NY, Wayne County, NY

The radar

The Buffalo radar (KBUF), 119 km from the middle of the area, began a volume at 10:18 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 10.2 hours before the alert went out and 117 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: 862 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 108 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

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

NWS Buffalo, NY wrote its last area forecast discussion before this special weather statement went out at Dec 29, 4:45 AM EST, 29 minutes earlier.

Area forecast discussion, Dec 29, 4:45 AM EST, 29 minutes before

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Hazardous weather outlook, Dec 29, 3:52 AM EST, 1 hour 22 minutes before

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In the hours before

Local storm report, Dec 28, 11:28 PM EST, 5 hours 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BUFFALO NY
1128 PM EST MON DEC 28 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 PM     SNOW             BARNES CORNERS          43.82N 75.82W
12/28/2020  M3.8 INCH        LEWIS              NY   STORM CHASER

            3.8 INCHES OF SNOW IN 2.5 HOURS FROM 6PM TO
            830 PM.

&&

HITCHCOCK

Special weather statement, Dec 29, 5:09 AM EST, 5 minutes before

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Special weather statement, Dec 29, 5:14 AM EST, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 29, 2:40 AM EST	Lake Effect Snow Warning	BUF	Oswego	5 hr
Dec 29, 5:09 AM EST	Special Weather Statement	BUF	Oswego	66 min
Dec 29, 6:38 AM EST	Special Weather Statement	BUF	Monroe, Wayne	67 min
Dec 29, 6:56 PM EST	Small Craft Advisory	BUF		51 hr

Nearby

Special Weather Statements in New York, 2020 Every special weather statement in 2020

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.