953
ACUS11 KWNS 021721
SWOMCD
SPC MCD 021721
MDZ000-DCZ000-VAZ000-WVZ000-021845-
MESOSCALE DISCUSSION 2199
NWS STORM PREDICTION CENTER NORMAN OK
1221 PM CDT WED SEP 02 2026
AREAS AFFECTED...NORTHERN VIRGINIA...AND CENTRAL/EASTERN MARYLAND.
CONCERNING...SEVERE THUNDERSTORM WATCH 643...
VALID 021721Z - 021845Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 643
CONTINUES.
SUMMARY...SOME DAMAGING WIND THREAT WILL CONTINUE THROUGH THE
AFTERNOON.
DISCUSSION...A WELL-ORGANIZED LINE OF STORMS WHICH PRODUCED SPORADIC
DAMAGING WIND GUSTS ACROSS CENTRAL INTO SOUTHERN PENNSYLVANIA IS
CONTINUING SOUTH ACROSS CENTRAL MARYLAND AND NORTHERN VIRGINIA.
LIGHTNING/REFLECTIVITY TRENDS SUGGEST THIS LINE OF STORMS HAS
WEAKENED SOMEWHAT HERE RECENTLY. AS THIS LINE OF STORMS CONTINUES
SOUTHWARD, IT WILL MOVE INTO A LESS SHEARED ENVIRONMENT. THEREFORE,
THE CURRENT SIGNS OF WEAKENING ARE UNSURPRISING AND EXPECTED TO
CONTINUE THROUGH THE AFTERNOON. HOWEVER, A WELL-ESTABLISHED COLD
POOL AND MODERATE INSTABILITY AHEAD OF THIS CLUSTER OF STORMS SHOULD
ALLOW FOR SOME SPORADIC DAMAGING WIND THREAT OVER THE NEXT FEW HOURS
BEFORE IT WEAKENS BELOW SEVERE LIMITS.
..BENTLEY/GLEASON.. 09/02/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...PHI...AKQ...LWX...
LAT...LON 39437754 39497672 39637628 39387590 39027587 38667605
38417625 38287672 38297719 38517758 39407787 39437754
MOST PROBABLE PEAK WIND GUST...55-70 MPH
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