Montgomery County, Maryland, circa 1930. "Glen Echo Park." 8x10 inch glass negative, National Photo Company Collection. View full size. Continue Reading »
Rockville, Maryland, 1926. "Montgomery County Motor Co." A behind-the-scenes look at MCMC's oil-stained service bay. 8x10 inch glass negative, National Photo Co. View full size. Continue Reading »
Rockville, Maryland, circa 1926. "Montgomery County Motor Co." A view from inside the "Used Cars" section of the Chevrolet dealership seen here a few years ago. 8x10 inch dry plate glass negative, National Photo Company Collection. View full size. Continue Reading »
Washington, D.C., circa 1926. "Ford Motor Co. -- Lincoln at Lincoln Memorial." 8x10 inch dry plate glass negative, National Photo Company Collection. View full size. Continue Reading »
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1217 AM CDT Sun Apr 19 2026
Valid 191200Z - 201200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe thunderstorms are not forecast today.
...Synopsis...
A large upper trough extending from the Great Lakes into the OH and
TN Valleys will move into the northeastern US today, with a weak
upper ridge across the Rockies. This pattern will favor high
pressure over the central and eastern states, stable conditions and
minimal thunderstorm activity. A cold front associated the eastern
trough will be well off the East Coast by midday, with drying
offshore flow. ... Continue Reading »
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1246 AM CDT Sun Apr 19 2026
Valid 201200Z - 211200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe storms are not expected on Monday.
... Synopsis ...
A midlevel trough will progress from the Northeast off the New
England coast on Monday, while the trailing cold front continues
southward into the Caribbean Sea. In the wake of this system, high
pressure and a relatively dry airmass will limit thunderstorm
potential across much of the CONUS.
... South Florida ...
North of the aforementioned front, diurnal heating of a moist
post-frontal airmass characterized by ... Continue Reading »
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0227 AM CDT Sun Apr 19 2026
Valid 211200Z - 221200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms will be possible across the western CONUS, the
south-central CONUS, and the southern Great Lakes. No severe weather
is anticipated.
... Synopsis ...
A large-scale midlevel trough will move push inland across the
western CONUS into the Great Basin on Wednesday, with downstream
ridging building across the central CONUS in response. Across the
Northeast, northwest flow aloft will prevail downstream of the
central CONUS ridge. An embedded jet streak and associated vorticity
maximum within the ... Continue Reading »
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1217 AM CDT Sun Apr 19 2026
Valid 191200Z - 201200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe thunderstorms are not forecast today.
...Synopsis...
A large upper trough extending from the Great Lakes into the OH and
TN Valleys will move into the northeastern US today, with a weak
upper ridge across the Rockies. This pattern will favor high
pressure over the central and eastern states, stable conditions and
minimal thunderstorm activity. A cold front associated the eastern
trough will be well off the East Coast by midday, with drying
offshore flow. ... 
SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1246 AM CDT Sun Apr 19 2026
Valid 201200Z - 211200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe storms are not expected on Monday.
... Synopsis ...
A midlevel trough will progress from the Northeast off the New
England coast on Monday, while the trailing cold front continues
southward into the Caribbean Sea. In the wake of this system, high
pressure and a relatively dry airmass will limit thunderstorm
potential across much of the CONUS.
... South Florida ...
North of the aforementioned front, diurnal heating of a moist
post-frontal airmass characterized by ... 
SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0227 AM CDT Sun Apr 19 2026
Valid 211200Z - 221200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms will be possible across the western CONUS, the
south-central CONUS, and the southern Great Lakes. No severe weather
is anticipated.
... Synopsis ...
A large-scale midlevel trough will move push inland across the
western CONUS into the Great Basin on Wednesday, with downstream
ridging building across the central CONUS in response. Across the
Northeast, northwest flow aloft will prevail downstream of the
central CONUS ridge. An embedded jet streak and associated vorticity
maximum within the ...