Alert archive / North Carolina / Frost Advisories in 2013

Frost Advisory 1, NWS Newport/Morehead City, NC

October 25, 2013Dare County, Pamlico County, North Carolina

NWS Newport/Morehead City, NC issued this frost advisory at Oct 25, 2013, 3:07 AM EDT for Dare County, Pamlico County, North Carolina. It took effect at Oct 26, 2013, 3:00 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Oct 25, 2013, 3:07 AM EDT (07:07 UTC)
In effect from
Oct 26, 2013, 3:00 AM EDT
Expired
Oct 26, 2013, 9:00 AM EDT
In force
6 hr
Issued by
NWS Newport/Morehead City, NC

Counties Dare County, NC, Pamlico County, NC

The radar

The Morehead City radar (KMHX), 97 km from the middle of the area, began a volume at 07:09 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 7.1 hours before the alert went out and 283 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, Wallops Is Stn, VA at 00:00Z on 2013-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2013-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 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
8 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1579 m above ground
0-6 km bulk shear
108 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 25, 3:07 AM EDTFreeze WarningMHXBeaufort, Duplin, Greene, Hyde, Jones, Lenoir and 4 more30 hr

Nearby

Frost Advisories in North Carolina, 2013Every frost advisory in 2013

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.