159
WGUS61 KLWX 090810
FFALWX
URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
410 AM EDT THU JUL 9 2026
...STRONG THUNDERSTORMS WILL TRACK ACROSS THE AREA WITH A TROPICAL
AIR MASS SUPPORTING TORRENTIAL DOWNPOURS. THESE WILL BE CAPABLE OF
PRODUCING FLASH FLOODING...
DCZ001-MDZ004>006-008-011-013-014-503>508-VAZ053-054-505-506-526-527-
091615-
/O.NEW.KLWX.FA.A.0007.260709T1800Z-260710T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DISTRICT OF COLUMBIA-FREDERICK-CARROLL-NORTHERN BALTIMORE-CECIL-
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-NORTHWEST
MONTGOMERY-CENTRAL AND SOUTHEAST MONTGOMERY-NORTHWEST HOWARD-
CENTRAL AND SOUTHEAST HOWARD-NORTHWEST HARFORD-SOUTHEAST HARFORD-
FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-WESTERN LOUDOUN-EASTERN
LOUDOUN-NORTHWEST PRINCE WILLIAM-CENTRAL AND SOUTHEAST PRINCE
WILLIAM/MANASSAS/MANASSAS PARK-
410 AM EDT THU JUL 9 2026
...FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH THIS
EVENING...
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL IS POSSIBLE.
* WHERE...WASHINGTON D.C., INCLUDING THE FOLLOWING AREAS IN
MARYLAND, ANNE ARUNDEL, CARROLL, CECIL, CENTRAL AND SOUTHEAST
HOWARD, CENTRAL AND SOUTHEAST MONTGOMERY, FREDERICK, NORTHERN
BALTIMORE, NORTHWEST HARFORD, NORTHWEST HOWARD, NORTHWEST
MONTGOMERY, PRINCE GEORGES, SOUTHEAST HARFORD AND SOUTHERN
BALTIMORE, AND NORTHERN VIRGINIA, INCLUDING THE FOLLOWING AREAS,
ARLINGTON/FALLS CHURCH/ALEXANDRIA, CENTRAL AND SOUTHEAST PRINCE
WILLIAM/MANASSAS/MANASSAS PARK, EASTERN LOUDOUN, FAIRFAX,
NORTHWEST PRINCE WILLIAM AND WESTERN LOUDOUN.
* WHEN...FROM 2 PM EDT THIS AFTERNOON THROUGH THIS EVENING.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
* ADDITIONAL DETAILS...
- A CLUSTER OF STRONG TO SEVERE THUNDERSTORMS ARE LIKELY TO
PUSH ACROSS THE REGION THIS AFTERNOON AND EVENING. WITH A
CONTINUED TROPICAL AIR MASS OVER THE AREA, VERY HEAVY
RAINFALL RATES ARE POSSIBLE IN MANY OF THESE STORMS. THESE
RATES COULD APPROACH 2 TO 3 INCHES PER HOUR, WITH HIGHER
INSTANTANEOUS RATES POSSIBLE. THE MOST VULNERABLE LOCATIONS
WOULD BE URBANIZED AREAS ALONG I-95 AS WELL AS AREAS WHICH
HAVE EXPERIENCED HEAVY RAINFALL IN RECENT DAYS.
- PLEASE VISIT WWW.WEATHER.GOV/SAFETY/FLOOD FOR FLOOD SAFETY
AND PREPAREDNESS INFORMATION
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
BRO
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