Pennsylvania storm reports for August 18, 2021

Name: NOAA storm reports, Pennsylvania, August 18, 2021
Creator: NOAA/NWS Storm Prediction Center

NOAA recorded 1 hail report, 33 wind reports and 7 tornado reports in Pennsylvania on August 18, 2021.

in Pennsylvania; 41
Storm reports: About 22 miles from Reading, PA; 0.75 in
Largest hail: About 22 miles from Lancaster, PA; 63 mph
Highest gust: Highest rating EF1, about 12 miles from Harrisburg, PA; 7
Tornado reports

Hail, inches

0.75
1
1.5
2
2.5
3+

Dots: reports. Shading: radar estimate.

Wind report
Tornado and its path
Surveyed tornado path

Sources: NOAA/NWS Storm Prediction Center reports; radar hail estimates from NOAA MRMS; damage surveys from the NWS Damage Assessment Toolkit

Hail, inches

0.75
1
1.5
2
2.5
3+

Dots: reports. Shading: radar estimate.

Wind report
Tornado and its path
Surveyed tornado path

Source: NOAA/NWS Storm Prediction Center, final severe weather database (from NOAA's Storm Data). Report day: 12:00 UTC on August 18, 2021 to 12:00 UTC the next day. Times are Central.

Select a dot or a path for the report. NWS survey teams walked the shaded paths after the storm; each is drawn at the widest width they found, so it can look wider than the damage at any one spot.

Reports by hour

Hail1, most at 10 PM

Wind33, most at 4 PM

Tornado7, most at 11 AM

Reports per hour, Central time. Each row has its own scale.

Every report

Source: NOAA/NWS Storm Prediction Center.

Time	Rating	Where	Path
11:46 AM	EF0	About 32 miles from Harrisburg, PA	0.13 mi long, 10 yd wide
2:16 PM	EF0	About 18 miles from York, PA	0.62 mi long, 75 yd wide
3:35 PM	EF0	About 37 miles from Harrisburg, PA	0.45 mi long, 15 yd wide
5:31 PM	EF1	About 12 miles from Harrisburg, PA	5.54 mi long, 150 yd wide
7:35 PM	EF0	About 9 miles from York, PA	0.68 mi long, 125 yd wide
8:15 PM	EF1	About 13 miles from Reading, PA	1.07 mi long, 125 yd wide
11:25 PM	EF1	About 21 miles from Philadelphia, PA	8.76 mi long, 140 yd wide

Time	Gust	Where
9:33 AM	60 mph	About 49 miles from Hagerstown, MD
9:34 AM	60 mph	About 49 miles from Hagerstown, MD
10:11 AM	60 mph	Near 40.36, -78.47, PA
12:10 PM	60 mph	About 16 miles from Harrisburg, PA
1:43 PM	60 mph	Near 41.12, -77.51, PA
1:59 PM	60 mph	About 21 miles from Harrisburg, PA
2:24 PM	60 mph	About 17 miles from York, PA
2:39 PM	60 mph	About 11 miles from Harrisburg, PA
3:53 PM	60 mph	About 25 miles from Hagerstown, MD
4:19 PM	60 mph	About 12 miles from Hagerstown, MD
4:35 PM	60 mph	About 28 miles from Harrisburg, PA
4:37 PM	60 mph	About 44 miles from Harrisburg, PA

Show all 33 wind reports

Time	Gust	Where
4:41 PM	60 mph	About 11 miles from Harrisburg, PA
4:43 PM	60 mph	About 24 miles from Hagerstown, MD
4:48 PM	60 mph	About 14 miles from Harrisburg, PA
5:08 PM	60 mph	About 19 miles from Harrisburg, PA
5:08 PM	60 mph	About 12 miles from Harrisburg, PA
5:30 PM	60 mph	About 13 miles from Harrisburg, PA
5:32 PM	63 mph	About 22 miles from Lancaster, PA
6:16 PM	60 mph	About 18 miles from York, PA
6:58 PM	60 mph	About 10 miles from Lancaster, PA
6:58 PM	60 mph	About 9 miles from Lancaster, PA
7:20 PM	60 mph	About 7 miles from Lancaster, PA
7:32 PM	63 mph	About 12 miles from Reading, PA
8:21 PM	60 mph	About 4 miles from Lancaster, PA
8:33 PM	58 mph	About 7 miles from Reading, PA
10:25 PM	58 mph	About 18 miles from Allentown, PA
11:01 PM	58 mph	About 26 miles from Philadelphia, PA
11:15 PM	63 mph	About 24 miles from Philadelphia, PA
11:25 PM	63 mph	About 20 miles from Philadelphia, PA
11:40 PM	58 mph	About 16 miles from Philadelphia, PA
12:19 AM	58 mph	About 10 miles from Philadelphia, PA
12:43 AM	58 mph	About 6 miles from Philadelphia, PA

Cities with reports nearby

Reports within 15 miles of the center of each city we track.

City	Largest hail	Highest gust	Tornado reports
Harrisburg, PA	None	60 mph	1
Lancaster, PA	None	60 mph	0
Philadelphia, PA	None	58 mph	0
Reading, PA	None	63 mph	1
York, PA	None	None	1

Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.