Watches, Warnings & Advisories



3 products issued by NWS for: Greenbelt MD

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Baltimore MD/Washington DC
409 PM EDT Tue Jun 24 2025

ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508-
VAZ053>057-527-252015-
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-Cecil-Southern Baltimore-
Prince Georges-Anne Arundel-Charles-St. Marys-Calvert-
Central and Southeast Montgomery-Central and Southeast Howard-
Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria-
Stafford-Spotsylvania-King George-
Central and Southeast Prince William/Manassas/Manassas Park-
409 PM EDT Tue Jun 24 2025

This Hazardous Weather Outlook is for the Maryland portion of the
Chesapeake Bay, Tidal Potomac River, and I-95 corridor through
central Maryland, northern Virginia, and District of Columbia.

.DAY ONE...Tonight

An Extreme Heat Warning is in effect until 9 PM this evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A Heat Advisory is in effect from 11 AM to 9 PM Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$



Extreme Heat Warning

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
304 PM EDT Tue Jun 24 2025

DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ036>040-050-051-
053>057-501-502-505-506-526-527-250315-
/O.CON.KLWX.XH.W.0002.000000T0000Z-250625T0100Z/
/O.CON.KLWX.HT.Y.0004.250625T1500Z-250626T0100Z/
District of Columbia-Frederick MD-Carroll-Northern Baltimore-
Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Charles-St.
Marys-Calvert-Northwest Montgomery-Central and Southeast
Montgomery-Northwest Howard-Central and Southeast Howard-
Northwest Harford-Southeast Harford-Nelson-Albemarle-Greene-
Madison-Rappahannock-Orange-Culpeper-Fairfax-Arlington/Falls
Church/Alexandria-Stafford-Spotsylvania-King George-Northern
Fauquier-Southern Fauquier-Western Loudoun-Eastern Loudoun-
Northwest Prince William-Central and Southeast Prince
William/Manassas/Manassas Park-
304 PM EDT Tue Jun 24 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 9 PM EDT
WEDNESDAY...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values up to 111. For the Heat Advisory, heat
  index values up to 108 expected.

* WHERE...Portions of DC, central, north central, northeast,
  northern, and southern Maryland, and central, northern, and
  northwest Virginia.

* WHEN...For the Extreme Heat Warning, until 9 PM EDT this evening.
  For the Heat Advisory, from 11 AM to 9 PM EDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Hot temperatures and high
  humidity may cause heat illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

&&

$$



Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
304 PM EDT Tue Jun 24 2025

DCZ001-MDZ004>006-008-011-013-014-016>018-503>508-VAZ036>040-050-051-
053>057-501-502-505-506-526-527-250315-
/O.CON.KLWX.XH.W.0002.000000T0000Z-250625T0100Z/
/O.CON.KLWX.HT.Y.0004.250625T1500Z-250626T0100Z/
District of Columbia-Frederick MD-Carroll-Northern Baltimore-
Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Charles-St.
Marys-Calvert-Northwest Montgomery-Central and Southeast
Montgomery-Northwest Howard-Central and Southeast Howard-
Northwest Harford-Southeast Harford-Nelson-Albemarle-Greene-
Madison-Rappahannock-Orange-Culpeper-Fairfax-Arlington/Falls
Church/Alexandria-Stafford-Spotsylvania-King George-Northern
Fauquier-Southern Fauquier-Western Loudoun-Eastern Loudoun-
Northwest Prince William-Central and Southeast Prince
William/Manassas/Manassas Park-
304 PM EDT Tue Jun 24 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 9 PM EDT
WEDNESDAY...

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
  with heat index values up to 111. For the Heat Advisory, heat
  index values up to 108 expected.

* WHERE...Portions of DC, central, north central, northeast,
  northern, and southern Maryland, and central, northern, and
  northwest Virginia.

* WHEN...For the Extreme Heat Warning, until 9 PM EDT this evening.
  For the Heat Advisory, from 11 AM to 9 PM EDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Hot temperatures and high
  humidity may cause heat illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.

&&

$$