More On The Area Drought Situation

Below is information from the National Weather Service in Sterling, Virginia on the drought situation in the region.

THE AREA CONTINUES DRY…WITH LITTLE OR NO RELIEF IN SIGHT. AS OF
JULY 17…THE DROUGHT IS RATED “SEVERE” IN TERMS OF A HYDROLOGICAL DROUGHT ACROSS LOWER SOUTHERN MARYLAND AND NORTHERN VIRGINIA. SURROUNDING THE SEVERE DROUGHT AREA IS A LARGE AREA OF MODERATE DROUGHT WITH ABNORMALLY DRY CONDITIONS OVER THE EASTERN WEST VIRGINIA PANHANDLE. AGRICULTURE INTERESTS ACROSS THE REGION ARE ALSO EXPERIENCING MODERATE TO SEVERE DROUGHT CONDITIONS.

THIS DROUGHT IS ON A PAR WITH THE DROUGHT OF SUMMER 2002. IN THAT YEAR…FOR THE PERIOD COVERING MAY 1ST THROUGH AUG 31ST…DCA ONLY MEASURED 9.82″ OF RAIN…AND BWI MEASURED 11.00″ NORMAL RAINFALL FOR THIS 4-MONTH PERIOD FOR DCA IS 14.05″…AND FOR BWI…14.91″. THAT DROUGHT WAS BROKEN BY MID SEPTEMBER 2002 AS THE UPPER LEVEL PATTERN SHIFTED ALLOWING MORE FREQUENT RAINFALL DURING THE FALL.

SO FAR THIS YEAR…FOR THE 81-DAY PERIOD MAY 1ST THROUGH JULY 20TH…DCA HAD MEASURED ONLY 4.46″. THIS RANKS AS 4TH DRIEST FOR THIS TIME PERIOD ON RECORD. AT BWI…6.01″ HAD BEEN MEASURED FOR THE SAME PERIOD RANKING AS 14TH DRIEST ON RECORD. OF COURSE…THIS IS A RATHER ARBITRARY RANKING PERIOD…AND THE NATURE OF WARM SEASON PRECIPITATION IN THE FORM OF SCATTERED SHOWERS AND THUNDERSTORMS CAN HAVE A LARGE IMPACT ON RAINFALL MEASUREMENTS…MAKING THESE RANKINGS NOT THAT SIGNIFICANT. STILL…IT IS VERY DRY ACROSS THE ENTIRE MID ATLANTIC REGION. A LOOK AT THE TROPICS SUGGESTS MINIMAL CHANCES OF ANY TROPICAL CYCLONE DEVELOPMENT IN THE NEXT WEEK.

NWS/LWX 21 July 07 … 10:49am

The National Weather Service statement made mention of the weak chance for Tropical Cyclone development in the near term. Tropical systems, or the lack thereof, will often make or break a drought.

A surface low pressure center near the coast on Monday and an upper low pressure area over or close to the region the rest of the week will provide a chance for rain but it will likely be light and scattered in nature and ultimately, probably not have a very significant impact on the dry conditions.

John Collins

Advertisements

There are no comments on this post.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: