Alert archive / Pennsylvania / Flash Flood Watches in 2018

Flash Flood Watch 9, NWS State College, PA

July 21, 201821 counties in Pennsylvania

NWS State College, PA issued this flash flood watch at Jul 21, 2018, 4:40 AM EDT for 21 counties in Pennsylvania. It took effect at Jul 21, 2018, 2:00 PM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Jul 21, 2018, 4:40 AM EDT (08:40 UTC)
In effect from: Jul 21, 2018, 2:00 PM EDT
Expired: Jul 22, 2018, 3:48 AM EDT
In force: 14 hr
Issued by: NWS State College, PA
Flood severity: None

All 21 counties

Adams County, PA, Centre County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Lycoming County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Schuylkill County, PA, Snyder County, PA, Union County, PA, York County, PA

The radar

The State College radar (KCCX), 86 km from the middle of the area, began a volume at 08:43 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.

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this flash flood watch went out at Jul 21, 3:34 AM EDT, 1 hour 6 minutes earlier.

Area forecast discussion, Jul 21, 3:34 AM EDT, 1 hour 6 minutes before

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Nearby

Flash Flood Watches in Pennsylvania, 2018 Every flash flood watch 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; radar from the NEXRAD Level II archive.