Severe Storm Outlook Narrative (AC)
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
429
ACUS11 KWNS 290122
SWOMCD
SPC MCD 290122
VAZ000-290215-

MESOSCALE DISCUSSION 1431
NWS STORM PREDICTION CENTER NORMAN OK
0822 PM CDT THU JUL 28 2016

AREAS AFFECTED...PORTIONS OF SWRN VA

CONCERNING...SEVERE THUNDERSTORM WATCH 419...

VALID 290122Z - 290215Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 419
CONTINUES.

SUMMARY...A LOCALIZED STRONG/GUSTY WIND THREAT SHOULD CONTINUE FOR
THE NEXT 1-2 HOURS. WW 419 WILL PROBABLY BE ALLOWED TO EXPIRE AS
SCHEDULED AT 02Z.

DISCUSSION...AN ONGOING BROKEN LINE OF THUNDERSTORMS APPROACHING
ROANOKE VA AS OF 0115Z MAY POSE A STRONG/GUSTY WIND THREAT FOR THE
NEXT SEVERAL HOURS AS IT MOVES EWD AROUND 30 KT. WITH THE LOSS OF
DAYTIME HEATING...INSTABILITY WILL CONTINUE TO DECREASE ACROSS SWRN
VA...AND THIS LINE OF STORMS MAY BECOME SLIGHTLY ELEVATED WITH TIME.
MID-LEVEL FLOW REMAINS FAIRLY STRONG PER LATEST VWP FROM KFCX...AND
CONVECTIVE DOWNDRAFTS APPROACHING SEVERE LIMITS COULD OCCUR IN THE
SHORT TERM. REGARDLESS...THE INCREASINGLY MARGINAL THERMODYNAMIC
ENVIRONMENT ACROSS REMAINING VALID PORTIONS OF WW 419 SUGGESTS THAT
THE WATCH WILL PROBABLY BE ALLOWED TO EXPIRE AS SCHEDULED AT 02Z IF
CURRENT RADAR TRENDS CONTINUE.

..GLEASON.. 07/29/2016

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...RNK...

LAT...LON   36648072 37478025 37878012 37737921 37397868 36997890
            36577922 36648072




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.