« Equinox arrives at 5:18 p.m. | Main | Where was the heaviest rain in Deep South? »

September 23, 2009

Heat and humidity may be summer's last gasp

There's more sunshine out there today (Wednesday) than forecasters expected, and plenty of humidity. That's making it feel more like late summer than early autumn. Highs this afternoon Autumn spiderand tomorrow could reach the low to mid-80s, about 8 degrees above the norms for this time of year in Baltimore. But time is running out.

Forecasters out at Sterling say this southerly flow of warm, humid air will be cut off by an approaching cold front , now over the Great Lakes, that's expected to cross the region late on Thursday. As that front gets close, it could bring us widely scattered showers later on Thursday. But it will also bring a wind shift that should begin to clear the air and dry us out for Friday and Saturday.

It should also cool us off. Friday will be sunny and pleasant, they say, with highs near seasonal norms, in the low 70s. Saturday will be even cooler, perhaps stalling out in the upper 60s under partly sunny skies. A breath of autumn.

The next round of rainy weather could show up as early as late Saturday and Sunday, clearing as the workweek begins.

Speaking of rain, I notice that the Drought Monitor map last week once again included some "abnormally dry" conditions in far western Maryland - about 13 percent of the state. It's the first time since mid-August that Maryland has shown up on the drought map.  

The dry patch is part of a larger expanse of scarce rainfall that includes southwestern Pennsylvania, northern West Virginia and eastern Ohio.

(SUN PHOTO/Amy Davis 2004)

Posted by Frank Roylance at 11:01 AM | | Comments (0)
Categories: Forecasts

Post a comment

All comments must be approved by the blog author. Please do not resubmit comments if they do not immediately appear. You are not required to use your full name when posting, but you should use a real e-mail address. Comments may be republished in print, but we will not publish your e-mail address. Our full Terms of Service are available here.

Verification (needed to reduce spam):

About Frank Roylance
This site is the Maryland Weather archive. The current Maryland Weather blog can be found here.
Frank Roylance is a reporter for The Baltimore Sun. He came to Baltimore from New Bedford, Mass. in 1980 to join the old Evening Sun. He moved to the morning Sun when the papers merged in 1992, and has spent most of his time since covering science, including astronomy and the weather. One of The Baltimore Sun's first online Web logs, the Weather Blog debuted in October 2004. In June 2006 Frank also began writing comments on local weather and stargazing for The Baltimore Sun's print Weather Page. Frank also answers readers’ weather queries for the newspaper and the blog. Frank Roylance retired in October 2011. Maryland Weather is now being updated by members of The Baltimore Sun staff

Sign up for FREE weather alerts*
Get free Baltimore Sun mobile alerts
Sign up for weather text alerts

Returning user? Update preferences.
Sign up for more Sun text alerts
*Standard message and data rates apply. Click here for Frequently Asked Questions.
Maryland Weather Center

Area Weather Stations
Resources and Sun coverage
• Weather news

• Readers' photos

• Data from the The Sun's weather station

• 2011 stargazers' calendar

• Become a backyard astronomer in five simple steps

• Baltimore Weather Archive
Daily airport weather data for Baltimore from 1948 to today

• National Weather Service:
Sterling Forecast Office

• Capital Weather Gang:
Washington Post weather blog

• CoCoRaHS:
Community Collaborative Rain, Hail and Snow Network. Local observations by volunteers

• Weather Bug:
Webcams across the state

• National Data Buoy Center:
Weather and ocean data from bay and ocean buoys

• U.S. Drought Monitor:
Weekly maps of drought conditions in the U.S.

• USGS Earthquake Hazards Program:
Real-time data on earthquakes

• Water data:
From the USGS, Maryland

• National Hurricane Center

• Air Now:
Government site for air quality information

• NWS Climate Prediction Center:
Long-term and seasonal forecasts

• U.S. Climate at a Glance:
NOAA interactive site for past climate data, national, state and city

• Clear Sky Clock:
Clear sky alerts for stargazers


• Hubblesite:
Home page for Hubble Space Telescope

• Heavens Above:
Everything for the backyard stargazer, tailored to your location

• NASA Eclipse Home Page:
Centuries of eclipse predictions

• Cruise Critic: Hurricane Zone:
Check to see how hurricanes may affect your cruise schedule

• Warming World:
NASA explains the science of climate change with articles, videos, “data visualizations,” and space-based imagery.

• What on Earth:
NASA blog on current research at the space agency.
Most Recent Comments
Blog updates
Recent updates to news blogs
 Subscribe to this feed
Charm City Current
Stay connected