Alert archive / Virginia / Flash Flood Warnings in 2018

Flash Flood Warning 45, NWS Baltimore/Washington

June 22, 2018Culpeper County, Madison County, Orange County, Virginia

NWS Baltimore/Washington issued this flash flood warning at Jun 22, 2018, 8:10 AM EDT for Culpeper County, Madison County, Orange County, Virginia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 22, 2018, 8:10 AM EDT (12:10 UTC)
Expired: Jun 22, 2018, 11:00 AM EDT
In force: 3 hr
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon
Flood severity: None

Counties Culpeper County, VA, Madison County, VA, Orange County, VA

The radar

The Sterling radar (KLWX), 84 km from the middle of the area, began a volume at 12:13 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

Roanoke, VA (KRNK), launched 12:00Z, 0.2 hours before the alert went out and 181 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 46 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 640 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Jun 22, 5:54 AM EDT, 2 hours 16 minutes earlier.

Area forecast discussion, Jun 22, 5:54 AM EDT, 2 hours 16 minutes before

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Hazardous weather outlook, Jun 22, 5:16 AM EDT, 2 hours 54 minutes before

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In the hours before

Local storm report, Jun 22, 4:59 AM EDT, 3 hours 11 minutes before

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Local storm report, Jun 22, 6:02 AM EDT, 2 hours 8 minutes before

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Local storm report, Jun 22, 6:17 AM EDT, 1 hour 53 minutes before

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Local storm report, Jun 22, 6:53 AM EDT, 1 hour 17 minutes before

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Local storm report, Jun 22, 7:13 AM EDT, 57 minutes before

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Local storm report, Jun 22, 7:50 AM EDT, 20 minutes before

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The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 21, 11:05 PM EDT	Areal Flood Warning	LWX	Culpeper, Orange	24 hr
Jun 21, 11:58 PM EDT	Areal Flood Warning	LWX	Rockingham	6 hr
Jun 22, 3:04 AM EDT	Flash Flood Warning	LWX	Greene	5 hr
Jun 22, 3:33 AM EDT	Areal Flood Warning	LWX	Culpeper	24 hr
Jun 22, 5:04 AM EDT	Flash Flood Warning	LWX	Madison	5 hr
Jun 22, 5:47 AM EDT	Areal Flood Warning	LWX	Culpeper, Fauquier, Orange, Spotsylvania, Stafford, City of Fredericksburg	28 hr
Jun 22, 6:39 AM EDT	River Flood Warning	LWX	Rockingham, Shenandoah	6 hr
Jun 22, 6:58 AM EDT	River Flood Warning	LWX	Culpeper, Orange, Spotsylvania	33 hr
Jun 22, 8:19 AM EDT	Areal Flood Warning	LWX	Culpeper, Rappahannock	12 hr
Jun 22, 8:24 AM EDT	Areal Flood Warning	LWX	Page, Shenandoah, Warren	12 hr
Jun 22, 8:28 AM EDT	River Flood Warning	LWX	Culpeper, Fauquier	48 hr
Jun 22, 8:29 AM EDT	River Flood Warning	LWX	Spotsylvania, Stafford, City of Fredericksburg	44 hr
Jun 22, 8:29 AM EDT	River Flood Warning	LWX	Stafford, City of Fredericksburg	59 hr
Jun 22, 9:57 AM EDT	River Flood Warning	LWX	Shenandoah, Warren	30 hr
Jun 22, 9:59 AM EDT	River Flood Warning	LWX	Clarke, Warren	60 hr
Jun 22, 10:27 AM EDT	Areal Flood Warning	LWX	Fauquier	12 hr
Jun 22, 11:30 AM EDT	Flash Flood Watch	LWX	Albemarle, Amherst, Augusta, Culpeper, Fauquier, Greene and 17 more	14 hr
Jun 22, 12:30 PM EDT	Coastal Flood Advisory	LWX	Arlington, King George, City of Alexandria, City of Falls Church	26 hr
Jun 22, 2:36 PM EDT	Areal Flood Warning	LWX	Fauquier	6 hr
Jun 22, 7:15 PM EDT	Small Craft Advisory	LWX		6 hr

Nearby

Flash Flood Warnings in Virginia, 2018 Every flash flood warning 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.