Alert archive / Pennsylvania / Special Weather Statements in 2021
Special Weather Statement, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this special weather statement at Jun 9, 2021, 3:21 PM EDT for Armstrong County, Pennsylvania. It was in force for 24 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 9, 2021, 3:21 PM EDT (19:21 UTC)
- Expired
- Jun 9, 2021, 3:45 PM EDT
- In force
- 24 min
- Issued by
- NWS Pittsburgh, PA
County Armstrong County, PA
The radar
The Pittsburgh radar (KPBZ), 75 km from the middle of the area, began a volume at 19:23 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
Pittsburgh, PA (KPIT), launched 12:00Z, 7.4 hours before the alert went out and 77 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
- 45 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 927 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
277 WWUS81 KPBZ 091921 SPSPBZ Special Weather Statement National Weather Service Pittsburgh PA 321 PM EDT Wed Jun 9 2021 PAZ015-022-091945- Armstrong-Clarion- 321 PM EDT Wed Jun 9 2021 ...A CLUSTER OF STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WIND AND HEAVY RAIN WILL AFFECT CENTRAL ARMSTRONG AND SOUTHERN CLARION COUNTIES... At 320 PM EDT, a strong thunderstorm cluster was centered 7 miles south of Rimersburg, moving east at 10 mph. Very heavy rainfall and wind gusts of 40 to 50 are possible with these storms. Locations impacted include... Rimersburg... New Bethlehem... East Brady... Templeton... Distant... Torrential rainfall also is occurring with this storm and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4086 7964 4104 7965 4108 7930 4082 7928 TIME...MOT...LOC 1920Z 274DEG 7KT 4093 7945 $$
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 8:50 PM EDT | Areal Flood Advisory | PBZ | Greene | 55 min |
| Jun 9, 12:38 PM EDT | Special Weather Statement | PBZ | Venango | 22 min |
| Jun 9, 1:07 PM EDT | Special Weather Statement | PBZ | Forest | 23 min |
| Jun 9, 1:16 PM EDT | Special Weather Statement | PBZ | Jefferson | 14 min |
| Jun 9, 4:40 PM EDT | Special Weather Statement | PBZ | Butler | 35 min |
| Jun 9, 7:21 PM EDT | Special Weather Statement | PBZ | Lawrence | 24 min |
Nearby
Special Weather Statements in Pennsylvania, 2021Every special weather statement 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.