Alert archive / Maryland / Tornado Warnings in 2021

Tornado Warning 10, NWS Baltimore/Washington

May 28, 2021Saint Mary's County, Maryland

NWS Baltimore/Washington issued this tornado warning at May 28, 2021, 2:34 PM EDT for Saint Mary's County, Maryland. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 28, 2021, 2:34 PM EDT (18:34 UTC)
Expired: May 28, 2021, 3:00 PM EDT
In force: 26 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Saint Mary's County, MD

The radar

The Dover AFB radar (KDOX), 115 km from the middle of the area, began a volume at 18:35 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 6.6 hours before the alert went out and 86 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1176 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

984 
WFUS51 KLWX 281834
TORLWX
MDC037-281900-
/O.NEW.KLWX.TO.W.0010.210528T1834Z-210528T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Baltimore MD/Washington DC
234 PM EDT Fri May 28 2021

The National Weather Service in Sterling Virginia has issued a

* Tornado Warning for...
  Southeastern St. Marys County in southern Maryland...

* Until 300 PM EDT.
    
* At 232 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Lewisetta, or near Saint George Island, moving
  east at 25 mph.

  HAZARD...Tornado and quarter size hail.

  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...
  Saint Inigoes Creek around 240 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Scotland, Saint Inigoes, Point Lookout, Dameron and Ridge.

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 3803 7632 3802 7632 3809 7648 3811 7650
      3818 7633 3814 7630
TIME...MOT...LOC 1832Z 255DEG 24KT 3805 7644 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

CS

2 follow-up statements

496 
WWUS51 KLWX 281847
SVSLWX

Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
247 PM EDT Fri May 28 2021

MDC037-281900-
/O.CON.KLWX.TO.W.0010.000000T0000Z-210528T1900Z/
St. Marys MD-
247 PM EDT Fri May 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM EDT FOR
SOUTHEASTERN ST. MARYS COUNTY...
    
At 247 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Saint Inigoes Creek, 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.

Locations impacted include...
Scotland, Point Lookout and Ridge. 

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 3802 7632 3803 7633 3810 7641 3812 7638
      3815 7632 3814 7630 3813 7630
TIME...MOT...LOC 1847Z 252DEG 19KT 3809 7635 

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

$$

ADS

556 
WWUS51 KLWX 281856
SVSLWX

Severe Weather Statement
National Weather Service Baltimore MD/Washington DC
256 PM EDT Fri May 28 2021

MDC037-281906-
/O.EXP.KLWX.TO.W.0010.000000T0000Z-210528T1900Z/
St. Marys MD-
256 PM EDT Fri May 28 2021

...THE TORNADO WARNING FOR SOUTHEASTERN ST. MARYS COUNTY WILL EXPIRE
AT 300 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

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

LAT...LON 3802 7632 3803 7633 3810 7641 3812 7638
      3815 7632 3814 7630 3813 7630
TIME...MOT...LOC 1856Z 255DEG 24KT 3810 7628 

$$

ADS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 5:46 PM EDT	Severe Thunderstorm Warning	LWX	Charles	44 min
May 28, 6:15 PM EDT	Severe Thunderstorm Warning	LWX	Charles, Prince George's	34 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.