Alert archive / New York / Frost Advisories in 2005

Frost Advisory 1, NWS Buffalo, NY

September 29, 2005Allegany County, Cattaraugus County, New York

NWS Buffalo, NY issued this frost advisory at Sep 29, 2005, 3:46 PM EDT for Allegany County, Cattaraugus County, New York. It took effect at Sep 30, 2005, 12:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Sep 29, 2005, 3:46 PM EDT (19:46 UTC)
In effect from
Sep 30, 2005, 12:00 AM EDT
Expired
Sep 30, 2005, 8:00 AM EDT
In force
8 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 19:50 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 2005-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 joules per kilogram.LCLLFCEL10008507005003002001001 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 2005-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -242 square meters per square second.1939587897117136156Sfc1 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
17 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
-242 m²/s²
0-3 km storm-relative helicity
-290 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WWUS71 KBUF 291946
NPWBUF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
346 PM EDT THU SEP 29 2005

...CLEARING SKIES WILL BRING FROST TO THE SOUTHERN TIER...

.COLD AIR WILL CONTINUE TO BUILD OVER THE AREA TONIGHT AND
CLEARING SKIES WILL ALLOW TEMPERATURES TO FALL EVEN FARTHER OVER
THE INTERIOR OF THE SOUTHERN TIER. OVERNIGHT TEMPERATURES WILL
FALL TO THE MIDDLE 30S IN ALLEGANY AND EASTERN CATTARAUGUS
COUNTIES WITH AREAS OF FROST EXPECTED. 

NYZ020-021-300400-
/X.NEW.KBUF.FR.Y.0001.050930T0400Z-050930T1200Z/
CATTARAUGUS-ALLEGANY-
INCLUDING THE CITIES OF...OLEAN...WELLSVILLE
346 PM EDT THU SEP 29 2005

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
FRIDAY...

THE NATIONAL WEATHER SERVICE IN BUFFALO HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
FRIDAY. 

CLEARING SKIES AND LIGHTER WINDS WILL ALLOW OVERNIGHT TEMPERATURES
TO FALL TO THE MID 30S OVER ALLEGANY AND EASTERN CATTARAUGUS
COUNTIES. AREAS OF FROST WILL DEVELOP AFTER MIDNIGHT.

A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON. THOSE WITH AGRICULTURAL INTERESTS IN
THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT TENDER
VEGETATION. ALSO, POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE
COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

$$
1 follow-up statement
000 
WWUS71 KBUF 300215
NPWBUF

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BUFFALO NY
1015 PM EDT THU SEP 29 2005

...CLEARING SKIES WILL BRING FROST TO THE SOUTHERN TIER...

.COLD AIR WILL CONTINUE TO BUILD OVER THE AREA OVERNIGHT AND WITH
LIGHT WINDS...TEMPERATURES WILL FALL EVEN FARTHER OVER THE
INTERIOR OF THE SOUTHERN TIER. OVERNIGHT TEMPERATURES WILL FALL TO
THE MIDDLE 30S IN ALLEGANY AND EASTERN CATTARAUGUS COUNTIES WITH
AREAS OF FROST EXPECTED.

NYZ020-021-301015-
/X.CON.KBUF.FR.Y.0001.050930T0400Z-050930T1200Z/
CATTARAUGUS-ALLEGANY-
INCLUDING THE CITIES OF...OLEAN...WELLSVILLE
1015 PM EDT THU SEP 29 2005

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY. 

MAINLY CLEAR TO PARTLY CLOUDY SKIES AND LIGHT WINDS WILL ALLOW
OVERNIGHT TEMPERATURES TO FALL TO THE MID 30S OVER ALLEGANY AND
EASTERN CATTARAUGUS COUNTIES. AREAS OF FROST WILL DEVELOP TOWARD
MORNING...ESPECIALLY IN THE DEEPER VALLEYS.

A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON. THOSE WITH AGRICULTURAL INTERESTS IN
THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT TENDER
VEGETATION. ALSO... POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD
BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

$$

TMA

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 4:18 AM EDTSevere Thunderstorm WarningBUFChautauqua57 min
Sep 29, 4:22 AM EDTSpecial Marine WarningBUF83 min
Sep 29, 4:41 AM EDTSpecial Marine WarningBUF94 min
Sep 29, 4:49 AM EDTSevere Thunderstorm WarningBUFCattaraugus, Erie, Niagara71 min
Sep 29, 5:23 AM EDTSevere Thunderstorm WarningBUFGenesee, Orleans, Wyoming62 min
Sep 29, 5:51 AM EDTSpecial Marine WarningBUF84 min
Sep 29, 5:52 AM EDTSevere Thunderstorm WarningBUFAllegany53 min
Sep 29, 6:08 AM EDTSevere Thunderstorm WarningBUFLivingston, Monroe67 min
Sep 29, 6:47 AM EDTSevere Thunderstorm WarningBUFOntario45 min
Sep 29, 6:54 AM EDTSevere Thunderstorm WarningBUFWayne66 min
Sep 29, 6:58 AM EDTSevere Thunderstorm WarningBUFJefferson, Oswego62 min
Sep 29, 7:37 AM EDTSevere Thunderstorm WarningBUFCayuga23 min
Sep 29, 7:43 AM EDTSevere Thunderstorm WarningBUFLewis62 min
Sep 29, 7:50 AM EDTSpecial Marine WarningBUF40 min
Sep 29, 7:58 AM EDTSevere Thunderstorm WarningBUFJefferson, Oswego47 min
Sep 29, 8:35 AM EDTSpecial Marine WarningBUF40 min
Sep 29, 8:48 AM EDTSevere Thunderstorm WarningBUFLewis33 min

Nearby

Frost Advisories in New York, 2005Every frost advisory in 2005

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.