Severe Thunderstorm Warning in Maryland

Active for next 20 minutes
National Weather Service
This alert has been updated.
Alert area: Anne Arundel; Calvert; Prince Georges
Posted 8 minutes ago
…A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTH CENTRAL ANNE ARUNDEL…NORTHWESTERN CALVERT AND
SOUTHEASTERN PRINCE GEORGES COUNTIES…
At 302 PM EDT, a severe thunderstorm was located over Dunkirk, or 8
miles west of Chesapeake Beach, moving southeast at 20 mph.
HAZARD…60 to 70 mph wind gusts and quarter size hail.
SOURCE…Radar indicated.
IMPACT…Damaging winds will cause some trees and large branches to
fall. This could injure those outdoors, as well as damage
homes and vehicles. Roadways may become blocked by downed
trees. Localized power outages are possible. Unsecured
light objects may become projectiles.
Locations impacted include…
Chesapeake Beach, Prince Frederick, Breezy Point, Dunkirk,
Huntingtown, Owings, Baden, Aquasco, Calvert Beach, Friendship, Lower
Marlboro, Port Republic, Sunderland and Mount Harmony.
HAIL…1.00IN
WIND…70MPH
For your protection move to an interior room on the lowest floor of a
building.

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Ways to prepare and stay safe now

  • During
    Take shelter inside a sturdy building.
    A shed or structure in an open area is more likely to be hit by lightning.
    If driving in heavy rain, find a place to pull over and park.
    Stay in the car and turn on your hazard lights until the rain stops.
    Avoid touching anything metal, including the frame of your car.
    Metal conducts electricity, which can injure you.
    Avoid tall trees, hilltops, open fields, the beach, and boats on the water.
    These places are more likely to be hit by lightning.
    Unplug electronic equipment.
    Power surges from lightning can cause serious damage to computers, monitors, and TVs.
    Use only cell phones and cordless phones that are not plugged into an outlet.
    A power surge from an outlet could injure you.

Other alerts in this area

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What is a Severe Thunderstorm Warning?

Warning
Watch

This is issued when either a severe thunderstorm is indicated by the WSR-88D radar or a spotter reports a thunderstorm producing hail one inch or larger in diameter and/or winds equal or exceed 58 miles an hour; therefore, people in the affected area should seek safe shelter immediately. Severe thunderstorms can produce tornadoes with little or no advance warning. Lightning frequency is not a criteria for issuing a severe thunderstorm warning. They are usually issued for a duration of one hour. They can be issued without a Severe Thunderstorm Watch being already in effect.

Like a Tornado Warning, the Severe Thunderstorm Warning is issued by your National Weather Service Forecast Office (NWFO). Severe Thunderstorm Warnings will include where the storm was located, what towns will be affected by the severe thunderstorm, and the primary threat associated with the severe thunderstorm warning. If the severe thunderstorm will affect the nearshore or coastal waters, it will be issued as the combined product–Severe Thunderstorm Warning and Special Marine Warning. If the severe thunderstorm is also causing torrential rains, this warning may also be combined with a Flash Flood Warning. If there is an ampersand (&) symbol at the bottom of the warning, it indicates that the warning was issued as a result of a severe weather report.

After it has been issued, the affected NWFO will follow it up periodically with Severe Weather Statements. These statements will contain updated information on the severe thunderstorm and they will also let the public know when the warning is no longer in effect.