Alert archive / Maryland / Tornado Warnings in 2026
Tornado Warning 47, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Aug 20, 2026, 7:08 PM EDT for Saint Mary's County, Maryland. It was in force for 16 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
- Aug 20, 2026, 7:08 PM EDT (23:08 UTC)
- Expired
- Aug 20, 2026, 7:24 PM EDT
- In force
- 16 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
County Saint Mary's County, MD
The radar
The Dover AFB radar (KDOX), 116 km from the middle of the area, began a volume at 23:12 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 20, 2:31 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 20, 2:58 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.1 hours before the alert went out and 111 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
- 97 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 1192 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 230 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Aug 20, 3:31 PM EDT, 3 hours 37 minutes earlier.
Area forecast discussion, Aug 20, 3:31 PM EDT, 3 hours 37 minutes before
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</html>Hazardous weather outlook, Aug 20, 4:01 PM EDT, 3 hours 7 minutes before
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Local storm report, Aug 20, 5:52 PM EDT, 1 hour 16 minutes before
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</html>Local storm report, Aug 20, 6:42 PM EDT, 26 minutes before
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</html>Local storm report, Aug 20, 7:03 PM EDT, 5 minutes before
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 2:19 PM EDT | Special Marine Warning | LWX | 23 min | |
| Aug 20, 2:27 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Fauquier, Loudoun | 33 min |
| Aug 20, 2:46 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 29 min |
| Aug 20, 2:57 PM EDT | Severe Thunderstorm Warning | LWX | Loudoun | 33 min |
| Aug 20, 3:57 PM EDT | Special Marine Warning | LWX | 93 min | |
| Aug 20, 5:04 PM EDT | Special Marine Warning | LWX | 86 min | |
| Aug 20, 5:24 PM EDT | Special Marine Warning | LWX | 42 min | |
| Aug 20, 6:09 PM EDT | Special Marine Warning | LWX | 76 min | |
| Aug 20, 6:11 PM EDT | Special Marine Warning | LWX | 49 min | |
| Aug 20, 7:01 PM EDT | Special Marine Warning | LWX | 59 min | |
| Aug 20, 6:55 PM EDT | Tornado Warning | LWX | Saint Mary's | 22 min |
Nearby
Tornado Warnings in Maryland, 2026Every tornado warning in 2026Tornadoes in 2026
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.