Alert archive / Maryland / Tornado Warnings in 2010
Tornado Warning 8, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Jul 20, 2010, 4:59 PM EDT for 5 counties in Maryland. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 20, 2010, 4:59 PM EDT (20:59 UTC)
- Expired
- Jul 20, 2010, 5:30 PM EDT
- In force
- 31 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
Counties Anne Arundel County, MD, Baltimore County, MD, Carroll County, MD, City of Baltimore, MD, Howard County, MD
The radar
The Sterling radar (KLWX), 74 km from the middle of the area, began a volume at 21:01 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.0 hours before the alert went out and 59 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
- 1611 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 74 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 |
|---|---|---|---|---|
| Jul 19, 9:20 PM EDT | Special Marine Warning | LWX | 85 min | |
| Jul 19, 9:56 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jul 20, 12:26 PM EDT | Special Marine Warning | LWX | 94 min | |
| Jul 20, 1:57 PM EDT | Special Marine Warning | LWX | 39 min | |
| Jul 20, 4:17 PM EDT | Special Weather Statement | LWX | Augusta, Nelson, City of Staunton, City of Waynesboro | 58 min |
| Jul 20, 4:46 PM EDT | Special Marine Warning | LWX | 119 min | |
| Jul 20, 4:54 PM EDT | Special Weather Statement | LWX | Albemarle, City of Charlottesville | 36 min |
| Jul 20, 6:16 PM EDT | Special Weather Statement | LWX | Culpeper, Rappahannock | 29 min |
| Jul 20, 7:11 PM EDT | Special Weather Statement | LWX | Fairfax, Fauquier, Prince William, City of Fairfax, City of Manassas, City of Manassas Park | 64 min |
| Jul 20, 7:44 PM EDT | Special Marine Warning | LWX | 78 min | |
| Jul 19, 9:52 PM EDT | Special Weather Statement | LWX | Charles | 38 min |
| Jul 19, 10:21 PM EDT | Special Weather Statement | LWX | Calvert, Saint Mary's | 24 min |
| Jul 20, 12:26 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 34 min |
| Jul 20, 1:01 PM EDT | Special Weather Statement | LWX | Harford | 29 min |
| Jul 20, 1:28 PM EDT | Special Weather Statement | LWX | Harford | 62 min |
| Jul 20, 4:33 PM EDT | Special Weather Statement | LWX | Howard, City of Baltimore | 42 min |
| Jul 20, 4:44 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Howard, City of Baltimore | 46 min |
| Jul 20, 5:31 PM EDT | Special Weather Statement | LWX | City of Baltimore | 44 min |
| Jul 20, 5:35 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, City of Baltimore | 25 min |
| Jul 20, 7:17 PM EDT | Special Weather Statement | LWX | Harford | 58 min |
| Jul 20, 7:54 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 51 min |
Nearby
Tornado Warnings in Maryland, 2010Every tornado warning in 2010Tornadoes in 2010
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.