Alert archive / New York / Frost Advisories in 2012

Frost Advisory 4, NWS Buffalo, NY

May 16, 2012Allegany County, Cattaraugus County, New York

NWS Buffalo, NY issued this frost advisory at May 16, 2012, 3:45 PM EDT for Allegany County, Cattaraugus County, New York. It took effect at May 17, 2012, 2:00 AM EDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 16, 2012, 3:45 PM EDT (19:45 UTC)
In effect from
May 17, 2012, 2:00 AM EDT
Expired
May 17, 2012, 5:00 AM EDT
In force
3 hr
Issued by
NWS Buffalo, NY

Counties Allegany County, NY, Cattaraugus County, NY

The radar

The Buffalo radar (KBUF), 83 km from the middle of the area, began a volume at 19:48 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 12:00Z, 7.8 hours before the alert went out and 80 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, Buffalo Intl Airport, NY at 12:00Z on 2012-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2012-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1591 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
10 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.

777 
WWUS71 KBUF 161945
NPWBUF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
345 PM EDT WED MAY 16 2012

NYZ020-021-170345-
/O.NEW.KBUF.FR.Y.0004.120517T0600Z-120517T0900Z/
CATTARAUGUS-ALLEGANY-
INCLUDING THE CITIES OF...OLEAN...WELLSVILLE
345 PM EDT WED MAY 16 2012

...FROST ADVISORY IN EFFECT FROM 2 AM TO 5 AM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 5 AM EDT THURSDAY. 

* LOCATIONS...CATTARAUGUS AND ALLEGANY COUNTIES.

* TIMING...OVERNIGHT WEDNESDAY NIGHT THROUGH LATE WEDNESDAY 
  NIGHT.

* TEMPERATURES...IN THE MID 30S.

* IMPACTS...FROST MAY DAMAGE UNPROTECTED TENDER AND SENSITIVE
  VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON. IF YOU ARE IN THE ADVISORY AREA YOU
SHOULD TAKE STEPS TO PROTECT TENDER VEGETATION. ALSO, POTTED
PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE
AWAY FROM THE COLD.

&&

$$
1 follow-up statement
062 
WWUS71 KBUF 170328
NPWBUF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
1128 PM EDT WED MAY 16 2012

NYZ020-021-170900-
/O.CON.KBUF.FR.Y.0004.120517T0600Z-120517T0900Z/
CATTARAUGUS-ALLEGANY-
INCLUDING THE CITIES OF...OLEAN...WELLSVILLE
1128 PM EDT WED MAY 16 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 5 AM EDT THURSDAY...

* LOCATIONS...CATTARAUGUS AND ALLEGANY COUNTIES.

* TIMING...FROM 2 AM TO 5 AM THURSDAY MORNING.

* TEMPERATURES...IN THE MID 30S.

* IMPACTS...FROST MAY DAMAGE UNPROTECTED TENDER AND SENSITIVE 
  VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON. IF YOU ARE IN THE ADVISORY AREA YOU
SHOULD TAKE STEPS TO PROTECT TENDER VEGETATION. ALSO... POTTED
PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE
AWAY FROM THE COLD.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 9:57 PM EDTSmall Craft AdvisoryBUF27 hr

Nearby

Frost Advisories in New York, 2012Every frost advisory in 2012

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.