Alert archive / Maryland / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 2, NWS Baltimore/Washington

March 5, 2025Fairfax County, Virginia; 5 counties in Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at Mar 5, 2025, 1:06 PM EST for Fairfax County, Virginia; 5 counties in Maryland. It was in force for 24 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
Mar 5, 2025, 1:06 PM EST (18:06 UTC)
Expired
Mar 5, 2025, 1:30 PM EST
In force
24 min
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Anne Arundel County, MD, Calvert County, MD, Charles County, MD, Prince George's County, MD, Saint Mary's County, MD, Fairfax County, VA

The radar

The Sterling radar (KLWX), 70 km from the middle of the area, began a volume at 18:05 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.

IssuedProductOfficeLasted
Mar 5, 10:27 AM ESTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 6.1 hours before the alert went out and 62 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2025-03-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2025-03-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 369 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
675 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
369 m²/s²
0-3 km storm-relative helicity
421 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 12:26 PM ESTSevere Thunderstorm WarningLWXFauquier, Prince William, Stafford34 min
Mar 5, 12:29 PM ESTSpecial Marine WarningLWX62 min
Mar 5, 1:12 PM ESTWind AdvisoryLWXAlbemarle, Amherst, Arlington, Augusta, Clarke, Fairfax and 23 more36 hr
Mar 5, 1:58 PM ESTGale WarningLWX36 hr
Mar 5, 2:05 PM ESTSpecial Marine WarningLWX38 min
Mar 5, 2:10 PM ESTSpecial Marine WarningLWX34 min
Mar 5, 3:09 PM ESTSmall Craft AdvisoryLWX15 hr
Mar 5, 2:24 AM ESTWinter Weather AdvisoryLWX33 hr
Mar 5, 2:57 AM ESTCoastal Flood AdvisoryLWXAnne Arundel19 hr
Mar 5, 6:10 PM ESTSevere Thunderstorm WarningLWXAllegany29 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2025Severe Thunderstorm Warnings in Virginia, 2025Every severe thunderstorm warning in 2025

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.