Moderate Extreme Weather ● Monitoring

Special Weather Statement issued October 16 at 6:16PM EDT by NWS Baltimore MD/Washington DC, United States of America

Event time: Last updated: 23 hr ago United States
Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

At 614 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Ellicott City to near Herndon to near
The Plains. Movement was east at 35 mph.

Northwest wind gusts of 40 to 50 mph and heavy downpours are
possible with these storms.

Locations impacted include...
Arlington, Alexandria, Centreville, Rockville, Bethesda, Reston,
Bowie, Annandale, Olney, Springfield, College Park, South Riding,
Herndon, Greenbelt, Fairfax, Langley Park, Beltsville, Vienna,
Groveton, and Forestville.

This includes the following highways...
Interstate 95 in Maryland between mile markers 15 and 34.
Interstate 270 in Maryland between mile markers 1 and 7.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

Measurements

Coordinates38.9179, -77.1321
RegionDistrict of Columbia; Prince Georges; Central and Southeast Montgomery; Fairfax; Arlington/Falls Church/Alexandria; Eastern Loudoun
Location Precisionpolygon
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyExpected
Cap CertaintyObserved
Cap Expires2026-10-16T19:15:00-04:00

Official source

Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by WMO Alert Hub (national weather services).

View original report

This event as JSON · API and licence

Source updated 2 days ago (Oct 16, 2026 22:17 UTC) · we last heard from WMO Alert Hub (national weather services) 57 seconds ago

On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.

Official authorities in United States

If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.

More for United States →

What to do

Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.

When thunder roars, go indoors — lightning risk outdoors, in vehicles, and first aid for strike victims.

Open Lightning Safety Guide →

Earlier extreme weather events in United States

Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.

Evacuation Immediate — Caddo, Canadian Extreme Extreme Weather United States closed via NWS Sep 15, 2026 Evacuation Immediate — Atoka Extreme Extreme Weather United States closed via NWS Sep 14, 2026 Evacuation Immediate — Lake County Extreme Extreme Weather United States closed via NWS Sep 10, 2026 Evacuation Immediate — Lake County Extreme Extreme Weather United States closed via NWS Sep 10, 2026

Nearby & related events

yellow advisory - frost - in effect — City of Toronto, Canada Moderate Cold Wave Canada monitoring via WMO 2 days ago yellow advisory - frost - in effect — City of Toronto, Canada Moderate Cold Wave Canada monitoring via WMO 2 days ago yellow advisory - frost - in effect — City of Toronto, Canada Moderate Cold Wave Canada monitoring via WMO 2 days ago yellow advisory - frost - in effect — City of Toronto, Canada Moderate Cold Wave Canada monitoring via WMO 2 days ago Special Marine Warning — Chesapeake Bay from Smith Point to Windmill Point VA; Chesapeake Bay from Windmill Point to New Point Comfort VA; Chesapeake Bay from New Point Comfort to Little Creek VA; Chesapeake Bay from Little Creek VA to Cape Henry VA Severe Severe Storm United States monitoring via NWS 2 days ago

Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.