Alert archive / Maryland / Tornado Warnings in 2021

Tornado Warning 13, NWS Baltimore/Washington

June 3, 2021Baltimore County, Harford County, Maryland

NWS Baltimore/Washington issued this tornado warning at Jun 3, 2021, 4:59 PM EDT for Baltimore County, Harford County, Maryland. It was in force for 16 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 3, 2021, 4:59 PM EDT (20:59 UTC)
Expired: Jun 3, 2021, 5:15 PM EDT
In force: 16 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Baltimore County, MD, Harford County, MD

The radar

The Sterling radar (KLWX), 106 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.

What was reported inside it

Time	Report	Where	Remark
Jun 3, 5:01 PM EDT	TSTM WND DMG	3 Nne Long Green, MD	TREE DOWN NEAR RT 145 AND GREENE RD

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 3, 2:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.0 hours before the alert went out and 102 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 73 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 511 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 118 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

054 
WFUS51 KLWX 032059
TORLWX
MDC005-025-032115-
/O.NEW.KLWX.TO.W.0013.210603T2059Z-210603T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Baltimore MD/Washington DC
459 PM EDT Thu Jun 3 2021

The National Weather Service in Sterling Virginia has issued a

* Tornado Warning for...
  West central Harford County in northern Maryland...
  Central Baltimore County in northern Maryland...

* Until 515 PM EDT.
    
* At 459 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Fallston, or near Cockeysville, moving east at 20
  mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...For those in the direct path of a tornado touchdown, 
           flying debris will be dangerous to those caught without 
           shelter. Damage to roofs, siding, and windows may occur. 
           Mobile homes may be damaged or destroyed. Tree damage is 
           likely.

* This dangerous storm will be near...
  Fallston around 510 PM EDT.
  Bel Air North around 515 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3950 7652 3953 7654 3959 7644 3952 7640
TIME...MOT...LOC 2059Z 250DEG 16KT 3952 7652 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

CJL

1 follow-up statement

152 
WWUS51 KLWX 032111
SVSLWX

Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
511 PM EDT Thu Jun 3 2021

MDC005-025-032120-
/O.EXP.KLWX.TO.W.0013.000000T0000Z-210603T2115Z/
Harford MD-Baltimore MD-
511 PM EDT Thu Jun 3 2021

...THE TORNADO WARNING FOR WEST CENTRAL HARFORD AND CENTRAL BALTIMORE
COUNTIES WILL EXPIRE AT 515 PM EDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and 
a Severe Thunderstorm Warning remains in effect for the area. 
However small hail and gusty winds are still possible with this 
thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northern Maryland.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Sterling Virginia.

LAT...LON 3950 7652 3953 7654 3959 7644 3952 7640
TIME...MOT...LOC 2110Z 250DEG 16KT 3954 7646 

$$

CJL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 8:56 AM EDT	Flash Flood Watch	LWX	Baltimore, Carroll, Cecil, Frederick, Harford, Howard and 2 more	13 hr
Jun 3, 3:14 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	46 min
Jun 3, 3:47 PM EDT	Severe Thunderstorm Warning	LWX	Carroll, Frederick, Howard, Montgomery	43 min
Jun 3, 3:50 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Washington	40 min
Jun 3, 4:12 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore	33 min
Jun 3, 4:20 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Carroll, Howard, City of Baltimore	40 min
Jun 3, 4:43 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford, City of Baltimore	47 min
Jun 3, 4:51 PM EDT	Tornado Warning	LWX	Baltimore, Harford	9 min
Jun 3, 4:54 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, Montgomery	36 min
Jun 3, 4:58 PM EDT	Areal Flood Warning	LWX	Baltimore, Harford	6 hr
Jun 3, 5:26 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Cecil, Harford	49 min
Jun 3, 5:27 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery	33 min
Jun 3, 5:55 PM EDT	Areal Flood Warning	LWX	Baltimore, Harford	34 min
Jun 3, 6:03 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Howard, Montgomery, Prince George's	28 min
Jun 3, 6:14 PM EDT	Severe Thunderstorm Warning	LWX	Cecil, Harford	34 min
Jun 3, 6:29 PM EDT	Flash Flood Warning Considerable damage threat	LWX	Baltimore, Harford	3 hr
Jun 3, 6:36 PM EDT	Severe Thunderstorm Warning	LWX	Baltimore, Harford	39 min
Jun 3, 6:46 PM EDT	Areal Flood Warning	LWX	Cecil	4 hr
Jun 3, 6:53 PM EDT	Tornado Warning	LWX	Harford	10 min

Nearby

Tornado Warnings in Maryland, 2021 Every tornado warning in 2021 Tornadoes in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.