Alert archive / Pennsylvania / Frost Advisories in 2017

Frost Advisory 3, NWS Philadelphia/Mount Holly

May 9, 2017Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this frost advisory at May 9, 2017, 3:09 PM EDT for Carbon County, Monroe County, Pennsylvania. It took effect at May 10, 2017, 12:00 AM EDT. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 9, 2017, 3:09 PM EDT (19:09 UTC)
In effect from
May 10, 2017, 12:00 AM EDT
Expired
May 10, 2017, 3:11 AM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 140 km from the middle of the area, began a volume at 19:14 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

Brookhaven, NY (KOKX), launched 12:00Z, 7.2 hours before the alert went out and 224 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, Brookhaven, NY at 12:00Z on 2017-05-09Temperature 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, Brookhaven, NY at 12:00Z on 2017-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.1939Sfc1 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
1144 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
191 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

358 
WWUS71 KPHI 091909
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
309 PM EDT Tue May 9 2017



PAZ054-055-100715-
/O.NEW.KPHI.FR.Y.0003.170510T0400Z-170510T1200Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
309 PM EDT Tue May 9 2017

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

The National Weather Service in Mount Holly has issued a Frost
Advisory, which is in effect from midnight tonight to 8 AM EDT
Wednesday.

* TEMPERATURES...as low as the mid 30s.

* TIMING...Frost is possible from after midnight tonight through a
  few hours after sunrise Wednesday morning.

* IMPACTS...Sensitive outdoor plants may be killed or damaged if
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

&&

$$

SFJ
1 follow-up statement
500 
WWUS71 KPHI 100711
NPWPHI

URGENT - WEATHER MESSAGE
National Weather Service Mount Holly NJ
311 AM EDT Wed May 10 2017

PAZ054-055-100815-
/O.CAN.KPHI.FR.Y.0003.000000T0000Z-170510T1200Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
311 AM EDT Wed May 10 2017

...FROST ADVISORY IS CANCELLED...

The National Weather Service in Mount Holly has cancelled the
Frost Advisory.

Temperatures will remain in the upper 30s to low 40s, and
widespread frost will not develop.

$$

MPS

Nearby

Frost Advisories in Pennsylvania, 2017Every frost advisory in 2017

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.