Alert archive / Pennsylvania / Wind Chill Advisories in 2021

Wind Chill Advisory 1, NWS Philadelphia/Mount Holly

January 28, 2021Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this wind chill advisory at Jan 28, 2021, 6:31 PM EST for Carbon County, Monroe County, Pennsylvania. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Jan 28, 2021, 6:31 PM EST (23:31 UTC)
Expired
Jan 29, 2021, 10:03 AM EST
In force
16 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 23:36 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, 11.5 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 2021-01-28Temperature 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 2021-01-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939587897Sfc1 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
753 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

323 
WWUS41 KPHI 282331
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
631 PM EST Thu Jan 28 2021

PAZ054-055-291600-
/O.NEW.KPHI.WC.Y.0001.210128T2331Z-210129T1600Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
631 PM EST Thu Jan 28 2021

...WIND CHILL ADVISORY IN EFFECT UNTIL 11 AM EST FRIDAY...

* WHAT...Very cold wind chills. Wind chills as low as 20 below 
  zero.

* WHERE...Carbon and Monroe.

* WHEN...Until 11 AM EST Friday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Winds will also gust as high as 45 to 50 
  mph at times tonight through Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
3 follow-up statements
219 
WWUS41 KPHI 282349
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
649 PM EST Thu Jan 28 2021

PAZ054-055-291600-
/O.CON.KPHI.WC.Y.0001.000000T0000Z-210129T1600Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
649 PM EST Thu Jan 28 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST FRIDAY...

* WHAT...Very cold wind chills. Wind chills as low as 20 below 
  zero.

* WHERE...Carbon and Monroe, especially the higher elevations.

* WHEN...Until 11 AM EST Friday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Winds will also gust as high as 45 to 50 
  mph at times tonight through Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$
808 
WWUS41 KPHI 290835
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
335 AM EST Fri Jan 29 2021

PAZ054-055-291600-
/O.CON.KPHI.WC.Y.0001.000000T0000Z-210129T1600Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
335 AM EST Fri Jan 29 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS
MORNING...

* WHAT...Very cold wind chills. Wind chills as low as 15 to 20 
  below zero.

* WHERE...Carbon and Monroe, especially the higher elevations.

* WHEN...Until 11 AM EST this morning.

* IMPACTS...The cold wind chills could cause frostbite on exposed
  skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Winds will also gust as high as 45 to 50
  mph at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$
096 
WWUS41 KPHI 291503
WSWPHI

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
1003 AM EST Fri Jan 29 2021



PAZ054-055-291615-
/O.CAN.KPHI.WC.Y.0001.000000T0000Z-210129T1600Z/
Carbon-Monroe-
Including the cities of Jim Thorpe and Stroudsburg
1003 AM EST Fri Jan 29 2021

...WIND CHILL ADVISORY IS CANCELLED...

Temperatures have come up, and wind should stay steady through the
morning before decreasing this afternoon. Thus, the wind chill
values should continue to increase so the wind chill advisory has
been cancelled.

$$

Johnson

Nearby

Wind Chill Advisories in Pennsylvania, 2021Every wind chill advisory in 2021

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.