Alert archive / Virginia / Wind Advisories in 2019
Wind Advisory 17, NWS Baltimore/Washington
NWS Baltimore/Washington issued this wind advisory at Oct 31, 2019, 3:48 AM EDT for 25 counties in Virginia; 12 counties in Maryland; 8 counties in West Virginia. It took effect at Oct 31, 2019, 6:00 PM EDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Oct 31, 2019, 3:48 AM EDT (07:48 UTC)
- In effect from
- Oct 31, 2019, 6:00 PM EDT
- Expired
- Nov 1, 2019, 4:00 AM EDT
- In force
- 10 hr
- Issued by
- NWS Baltimore/Washington
All 45 counties
Allegany County, MD, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, City of Baltimore, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Prince George's County, MD, Washington County, MD, Albemarle County, VA, Amherst County, VA, Arlington County, VA, Augusta County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Harrisonburg, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Fairfax County, VA, Frederick County, VA, Greene County, VA, Highland County, VA, Loudoun County, VA, Madison County, VA, Nelson County, VA, Page County, VA, Rappahannock County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Warren County, VA, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Morgan County, WV, Pendleton County, WV
The radar
The Sterling radar (KLWX), 50 km from the middle of the area, began a volume at 07:48 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 00:00Z, 7.8 hours before the alert went out and 224 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 410 m²/s²
- 0-3 km storm-relative helicity
- 448 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 31, 1:58 PM EDT | Coastal Flood Warning | LWX | Arlington, City of Alexandria, City of Falls Church | 12 hr |
| Oct 31, 1:58 PM EDT | Coastal Flood Advisory | LWX | Arlington, King George, City of Alexandria, City of Falls Church | 15 hr |
| Oct 31, 4:41 PM EDT | Severe Thunderstorm Warning | LWX | Highland | 49 min |
| Oct 31, 4:56 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 49 min |
| Oct 31, 5:45 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 45 min |
| Oct 31, 6:46 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Frederick, City of Winchester | 44 min |
| Oct 31, 6:59 PM EDT | Small Craft Advisory | LWX | 23 hr | |
| Oct 31, 7:04 PM EDT | Tornado Warning | LWX | Greene, Madison, Orange | 26 min |
| Oct 31, 7:19 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier, Madison, Rappahannock | 26 min |
| Oct 31, 7:24 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 51 min |
| Oct 31, 5:05 PM EDT | Tornado Warning | LWX | Allegany, Washington | 25 min |
| Oct 31, 4:10 PM EDT | Severe Thunderstorm Warning | LWX | Grant, Hampshire, Hardy, Mineral | 50 min |
Nearby
Wind Advisories in Virginia, 2019Wind Advisories in Maryland, 2019Wind Advisories in West Virginia, 2019Every wind advisory in 2019
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.