Alert archive / Pennsylvania / Frost Advisories in 2022
Frost Advisory 2, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this frost advisory at May 17, 2022, 12:29 PM EDT for Forest County, Venango County, Pennsylvania. It took effect at May 18, 2022, 4:00 AM EDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- May 17, 2022, 12:29 PM EDT (16:29 UTC)
- In effect from
- May 18, 2022, 4:00 AM EDT
- Expired
- May 18, 2022, 8:23 AM EDT
- In force
- 4 hr
- Issued by
- NWS Pittsburgh, PA
Counties Forest County, PA, Venango County, PA
The radar
The Pittsburgh radar (KPBZ), 119 km from the middle of the area, began a volume at 16:26 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, 4.5 hours before the alert went out and 176 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1223 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before this frost advisory went out at May 16, 5:56 PM EDT, 18 hours 33 minutes earlier.
Area forecast discussion, May 16, 5:56 PM EDT, 18 hours 33 minutes before
Area Forecast Discussion...UPDATED National Weather Service Pittsburgh PA 556 PM EDT Mon May 16 2022 .SYNOPSIS... Dry weather returns late tonight and Tuesday under high pressure, but rain is back in the forecast for mid week. && .NEAR TERM /THROUGH TUESDAY/... Updated forecast to account for area of convection moving across the western half of the region. This activity is associated with a shortwave rotating around the back edge of a trough axis and cold air advection. This feature will shift east of the CWA early this evening. Latest forecast soundings are showing elevated instability, due to the colder air aloft, which is working to create isolated storms. PoPs have been updated and the mention of thunder has be reintroduced. Overnight temperatures where also modified with a blend of hires model guidance. Dry and seasonably cool weather is expected later tonight as sfc high pressure builds under NW flow aloft. That high wl maintain dry and cool conditions on Tuesday as the effects of east coast upper troughing continue. && .SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/... A general zonal flow aloft is progged by mid week, but a shortwave embedded in the flow is expected to cross the region with scattered clouds and showers returning and inhibiting temperature rebound for Wednesday. && .LONG TERM /THURSDAY THROUGH MONDAY/... Model ensembles indicate another shortwave embedded in the zonal flow should maintain showers/tstm chances on Thursday. The upper air pattern is expected to become amplified by Friday as an upper trough digs across the Central CONUS. Ridging ahead of this trough should result in warm and mainly dry weather on Friday. Shower and thunderstorm chances return for the weekend as the trough approaches and crosses the Upper Ohio Valley region. && .AVIATION /22Z MONDAY THROUGH SATURDAY/... General VFR for the forecast period. A shower or storm is possible at ports south of FKL/DUJ this evening. The chances of these hitting a specific port are low, so will amend TAFs as needed to account for this. Winds will weaken with sunset. Winds are expected to increase Tuesday afternoon, with gusts to 20kts possible at all ports. .Outlook... Rain and restrictions may return on Wednesday with a trough passage. && .PBZ WATCHES/WARNINGS/ADVISORIES... PA...None. OH...None. WV...None. && SYNOPSIS... NEAR TERM... SHORT TERM... LONG TERM... AVIATION...
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 8:24 PM EDT | Special Weather Statement | PBZ | Fayette, Indiana, Westmoreland | 36 min |
| May 16, 8:40 PM EDT | Special Weather Statement | PBZ | Armstrong, Jefferson | 50 min |
Nearby
Frost Advisories in Pennsylvania, 2022Every frost advisory in 2022
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.