Alert archive / Maryland / Tornado Warnings in 2019

Tornado Warning 25, NWS Baltimore/Washington

May 30, 2019Anne Arundel County, Howard County, Maryland

NWS Baltimore/Washington issued this tornado warning at May 30, 2019, 3:22 PM EDT for Anne Arundel County, Howard County, Maryland. It was in force for 23 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
May 30, 2019, 3:22 PM EDT (19:22 UTC)
Expired
May 30, 2019, 3:45 PM EDT
In force
23 min
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Anne Arundel County, MD, Howard County, MD

The radar

The Sterling radar (KLWX), 66 km from the middle of the area, began a volume at 19:25 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
May 30, 2:01 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.4 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2019-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 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 2019-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.193958Sfc1 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
1213 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
36 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 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 May 30, 3:17 PM EDT, 5 minutes earlier.

Area forecast discussion, May 30, 3:17 PM EDT, 5 minutes before
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Hazardous weather outlook, May 30, 2:25 PM EDT, 57 minutes before
Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
225 PM EDT Thu May 30 2019

ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-311830-
Chesapeake Bay north of Pooles Island MD-
Chesapeake Bay from Pooles Island to Sandy Point MD-
Chesapeake Bay from Sandy Point to North Beach MD-
Chesapeake Bay from North Beach to Drum Point MD-
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Key Bridge to Indian Head MD-
Tidal Potomac from Indian Head to Cobb Island MD-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-District of Columbia-Southern Baltimore-Prince Georges-
Anne Arundel-Charles-St. Marys-Calvert-Southeast Harford-
Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-Spotsylvania-
King George-
225 PM EDT Thu May 30 2019

This Hazardous Weather Outlook is for the Maryland portion of the
Chesapeake Bay, Tidal Potomac River, and adjacent counties in
central Maryland and northern Virginia as well as the District of
Columbia.

.DAY ONE...This Afternoon and Tonight

A Severe Thunderstorm Watch is in effect until 9pm this evening
for much of the area. Isolated severe thunderstorms with damaging
wind gusts, large hail, and an isolated tornado are possible. The
greatest risk exists north of the I-64 corridor.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.

MDZ003>006-501>507-VAZ025>031-036>040-050-051-501>508-WVZ050>053-
055-501>506-311830-
Washington-Frederick MD-Carroll-Northern Baltimore-
Extreme Western Allegany-Central and Eastern Allegany-
Northwest Montgomery-Central and Southeast Montgomery-
Northwest Howard-Central and Southeast Howard-Northwest Harford-
Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-
Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper-
Northern Fauquier-Southern Fauquier-Western Highland-
Eastern Highland-Western Loudoun-Eastern Loudoun-
Northern Virginia Blue Ridge-Central Virginia Blue Ridge-
Hampshire-Morgan-Berkeley-Jefferson-Hardy-Western Grant-
Eastern Grant-Western Mineral-Eastern Mineral-Western Pendleton-
Eastern Pendleton-
225 PM EDT Thu May 30 2019

This Hazardous Weather Outlook is for eastern West Virginia,
northern and central Virginia, and central and western Maryland
with the exception of Garrett County.

.DAY ONE...This Afternoon and Tonight

A Severe Thunderstorm Watch is in effect until 9pm this evening
for much of northern Virginia and northern Maryland, including portions
of the eastern panhandle of West Virginia. Isolated severe
thunderstorms with damaging wind gusts, large hail, and an
isolated tornado are possible. The greatest risk exists north of
the I-64 corridor.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening.

In the hours before

Local storm report, May 30, 3:21 PM EDT, 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 10:20 PM EDTSmall Craft AdvisoryLWX21 hr
May 30, 2:32 PM EDTSevere Thunderstorm WarningLWXFairfax, Fauquier, Loudoun, Prince William, City of Fairfax, City of Manassas and 1 more43 min
May 30, 2:41 PM EDTSevere Thunderstorm WarningLWXCulpeper, Fauquier, Rappahannock, Warren13 min
May 30, 2:51 PM EDTSpecial Marine WarningLWX84 min
May 30, 2:59 PM EDTSpecial Marine WarningLWX2 hr
May 30, 3:10 PM EDTSevere Thunderstorm WarningLWXArlington, Fairfax, Loudoun, Prince William, City of Alexandria, City of Fairfax and 3 more50 min
May 30, 3:40 PM EDTSpecial Marine WarningLWX85 min
May 30, 3:41 PM EDTSpecial Marine WarningLWX58 min
May 30, 3:42 PM EDTSevere Thunderstorm WarningLWXFairfax, Prince William48 min
May 30, 4:03 PM EDTSevere Thunderstorm WarningLWXFairfax, King George, Prince William, Stafford27 min
May 30, 4:10 PM EDTSpecial Marine WarningLWX56 min
May 30, 4:19 PM EDTSevere Thunderstorm WarningLWXKing George41 min
May 30, 4:25 PM EDTSpecial Marine WarningLWX37 min
May 30, 5:26 PM EDTSevere Thunderstorm WarningLWXAugusta, Rockingham, City of Harrisonburg49 min
May 30, 5:54 PM EDTSevere Thunderstorm WarningLWXAlbemarle, Greene, Madison, Rockingham51 min
May 30, 6:31 PM EDTSevere Thunderstorm WarningLWXCulpeper, Greene, Madison, Orange44 min
May 30, 6:53 PM EDTTornado WarningLWXOrange, Spotsylvania37 min
May 30, 7:16 PM EDTTornado WarningLWXSpotsylvania, City of Fredericksburg29 min
May 30, 7:42 PM EDTTornado WarningLWXKing George, Spotsylvania33 min
May 30, 7:43 PM EDTSpecial Marine WarningLWX92 min
May 30, 1:45 PM EDTSevere Thunderstorm WarningLWXWashington29 min
May 30, 2:20 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington40 min
May 30, 2:24 PM EDTTornado WarningLWXFrederick, Washington23 min
May 30, 2:53 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick, Howard, Montgomery52 min
May 30, 3:33 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Baltimore, Harford, Howard, City of Baltimore42 min

Nearby

Tornado Warnings in Maryland, 2019Every tornado warning in 2019Tornadoes 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.