Alert archive / Pennsylvania / Special Weather Statements in 2018

Special Weather Statement, NWS Cleveland, OH

June 28, 2018Erie County, Pennsylvania

NWS Cleveland, OH issued this special weather statement at Jun 28, 2018, 7:13 AM EDT for Erie County, Pennsylvania. It was in force for 62 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
Jun 28, 2018, 7:13 AM EDT (11:13 UTC)
Expired
Jun 28, 2018, 8:15 AM EDT
In force
62 min
Issued by
NWS Cleveland, OH

County Erie County, PA

The radar

The Buffalo radar (KBUF), 143 km from the middle of the area, began a volume at 11:14 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

Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 11.2 hours before the alert went out and 144 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, Buffalo Intl Airport, NY at 00:00Z on 2018-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 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, Buffalo Intl Airport, NY at 00:00Z on 2018-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.193958Sfc1 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
31 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

924 
WWUS81 KCLE 281113
SPSCLE

Special Weather Statement
National Weather Service Cleveland OH
713 AM EDT THU JUN 28 2018

PAZ001-002-281215-
Northern Erie-Southern Erie-
713 AM EDT THU JUN 28 2018

...Patchy dense fog this morning...

Areas of fog have developed near the Lake Erie shoreline this 
morning. Visibilities will fluctuate but may be dense at times with 
gradual improvement expected between 8 and 9 AM. Motorists should 
slow down and use caution as they encounter fog. 

LAT...LON 4227 7976 4215 7977 4190 8052 4197 8052
TIME...MOT...LOC 1108Z 180DEG 0KT 4149 8188 

$$

Clark

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 28, 4:06 AM EDTBeach Hazards StatementCLEAshtabula6 hr
Jun 28, 4:08 AM EDTSmall Craft AdvisoryCLE6 hr

Nearby

Special Weather Statements in Pennsylvania, 2018Every special weather statement in 2018

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.