Alert archive / Pennsylvania / Special Weather Statements in 2012
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at May 27, 2012, 9:36 PM EDT for Lehigh County, Northampton County, Pennsylvania. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 27, 2012, 9:36 PM EDT (01:36 UTC)
- Expired
- May 27, 2012, 10:30 PM EDT
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 125 km from the middle of the area, began a volume at 01:38 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 00:00Z, 1.6 hours before the alert went out and 228 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
- 995 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
386
WWUS81 KPHI 280136
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
936 PM EDT SUN MAY 27 2012
PAZ061-062-280230-
LEHIGH PA-NORTHAMPTON PA-
936 PM EDT SUN MAY 27 2012
...A STRONG THUNDERSTORM WILL AFFECT PORTIONS OF LEHIGH AND
NORTHAMPTON COUNTIES...
AT 933 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 11 MILES WEST OF ALLENTOWN...MOVING EAST AT 25
MPH. THE THUNDERSTORM WILL BE NEAR COFFEETOWN...NEFFS...SLATINGTON
AROUND 945 PM...NORTH CATASAUQUA...NORTHAMPTON...HOKENDAUQUA...
CATASAUQUA AROUND 1000 PM...BEERSVILLE AROUND 1005 PM...FOUNTAIN HILL
AROUND 1010 PM AND BATH AROUND 1015 PM.
VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.
LOCAL WIND GUSTS UP TO 35 MPH ARE POSSIBLE WITH THIS STORM.
CLOUD TO GROUND LIGHTNING IS OCCURRING. DO NOT SEEK SHELTER
UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS WHEN A
THUNDERSTORM APPROACHES.
LAT...LON 4058 7527 4055 7571 4061 7578 4071 7582
4075 7573 4084 7532
$$
FORECASTER: GORSEThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 9:34 PM EDT | Special Weather Statement | PHI | Passaic | 26 min |
| May 27, 8:04 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 56 min |
| May 27, 9:20 PM EDT | Areal Flood Advisory | PHI | Monroe | 3 hr |
| May 27, 10:10 PM EDT | Special Weather Statement | PHI | Caroline, Queen Anne's | 65 min |
Nearby
Special Weather Statements in Pennsylvania, 2012Every special weather statement in 2012
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.