STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK
DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS.
VALID 141630Z - 151200Z
NO SVR TSTM AREAS FCST.
GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM YUM SGU VEL
10 NE GCC 50 NNW MOT ...CONT... 15 E RRT 40 E PIR 35 ESE SNY
30 NNW GLD 15 ENE RSL 25 ESE MKC 20 SE SPI 15 ENE TOL.
...SYNOPSIS...
ERN PACIFIC UPPER-TROUGH WILL LIFT SLOWLY NWD AS A BELT OF STRONG
WESTERLIES RIDES OVER THE GREAT PLAINS RIDGE AND INTO THE GREAT
LAKES REGION. IN ADDITION..AN AREA OF LOW PRESSURE CONTINUES TO
MOVE ACROSS SRN FL INTO THE ERN GULF OF MEXICO WHILE ANOTHER
EASTERLY WAVE MOVES INTO SRN TX...AN INVERTED TROUGH LOCATED OVER
W TX AND E NM WILL MOVE SLOWLY WWRD INTO NM AND AZ...A STATIONARY
FRONT IS LOCATED ACROSS ERN MT AND NWRN ND.
...SRN FL...
A CLUSTER OF STRONG CONVECTION ONGOING ACROSS SRN FL AND EXTENDING
OFFSHORE WILL CONTINUE TO MOVE EWD THIS MORNING. MODERATE
INSTABILITY IS PRESENT ALONG THE FAR WRN AND SRN COAST OF FL. THE
INSTABILITY WILL FURTHER INCREASE AS SFC HEATING CONTINUES THIS
AFTERNOON HELPING THE CONVECTION TO STRENGTHEN SOMEWHAT THROUGH
00Z...A BAND OF STRONGER ELY LOW-LEVEL FLOW IS MOVING INLAND AND
SLIGHTLY STRENGTHENING THE LOW-LEVEL SHEAR AND MAY BE FAVORABLE FOR
AN ISOLATED TORNADO ESPECIALLY AS THE INSTABILITY INCREASES BY
MIDDAY.
...ERN AZ/WRN NM...
LOW TO MID-LEVEL MOIST PLUME EXISTS THIS MORNING FROM SOUTH CENTRAL
AZ EXTENDING INTO SRN UT. SFC DEWPOINTS ARE IN THE MID TO UPPER
60S F ACROSS SRN AND CENTRAL AZ WHICH WITH SFC HEATING WILL CREATE
MODERATE INSTABILITY BY THIS AFTERNOON. CONVECTION WILL LIKELY
FORM IN THE MOUNTAINS OF SRN AZ AND WRN NM AS INSATBILITY AND LIFT
INCREASE AHEAD OF WESTWARD MOVING LARGE SCALE INVERTED TROUGH.
STORM ORGANIZATION IS POSSIBLE AS A BAND OF STRONGER NELY MID-LEVEL
FLOW MOVES ACROSS AZ AND RESULTS IN 0-6 KM SHEAR AROUND 30KT AS
INDICATED BY THE 12Z ETA MODEL RUN. GIVEN MAGNITUDE OF SHEAR AND
INSTABILITY...COUPLED WITH THE INVERTED V PROFILES OVER THE LOWER
DESERTS...ISOLATED TO SCATTERED DAMAGING WIND EVENTS ARE POSSIBLE.
REGION WILL CONTINUE TO BE EVALUATED FOR A POSSIBLE UPGRADE TO
SLIGHT RISK ON THE 20Z OUTLOOK UPDATE.
..AFWA.. 08/14/03
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED FOR 2000Z
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