Area Forecast Discussion
Issued by NWS Indianapolis, IN

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000
FXUS63 KIND 040956
AFDIND

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
556 AM EDT SAT JUL 4 2015

.UPDATE...
THE AVIATION SECTION HAS BEEN UPDATED BELOW.

&&

.SYNOPSIS...
ISSUED AT 335 AM EDT SAT JUL 4 2015

DRY CONDITIONS WILL PREVAIL THROUGH THE WEEKEND AS HIGH PRESSURE
STRENGTHENS OVER CENTRAL INDIANA. AMPLE SUNSHINE WILL PUT
TEMPERATURES BACK TO NORMAL FOR THIS TIME OF YEAR BY SUNDAY.
SHOWERS AND THUNDERSTORMS WILL RETURN MONDAY EVENING AS A COLD
FRONT APPROACHES FROM THE WEST AND STALLS OVER THE REGION.

&&

.NEAR TERM /TODAY/...

ISSUED AT 335 AM EDT SAT JUL 4 2015

THE FRONTAL BOUNDARY THAT HAS BEEN TRIGGERING CONVECTIVE ACTIVITY
ACROSS CENTRAL INDIANA THE LAST FEW DAYS HAS DRIFTED FARTHER
SOUTHEAST. AS A RESULT...DRY CONDITIONS WILL PREVAIL TODAY AS HIGH
PRESSURE STRENGTHENS AT THE SURFACE.

TIME CROSS SECTIONS ARE INDICATING MUCH DRIER AIR IN THE MID AND
UPPER LEVELS...SO AMPLE SUNSHINE WILL ALLOW TEMPS TO CLIMB INTO
THE LOW 80S THIS AFTERNOON.

&&

.SHORT TERM /TONIGHT THROUGH MONDAY NIGHT/...

ISSUED AT 335 AM EDT SAT JUL 4 2015

THE MAIN FOCUS OF THE SHORT TERM PERIOD IS A COLD FRONT PROGGED
FOR MONDAY NIGHT.

WEAK RIDGING ALOFT AND HIGH PRESSURE AT THE SURFACE WILL RESULT IN
DRY AND WARM CONDITIONS THROUGH MONDAY. THE AMPLE SUNSHINE WILL
RESULT IN A WARMING TREND THROUGHOUT THE PERIOD WITH TEMPS NEAR
NORMAL ON SUNDAY...AND ABOVE NORMAL BY MONDAY. HIGHS ARE PROJECTED
TO CLIMB INTO THE MID TO UPPER 80S BY THE END OF THE PERIOD.

PATTERN WILL CHANGE LATE IN THE PERIOD AS A COLD FRONT APPROACHES
FROM THE WEST ON MONDAY EVENING. SCATTERED SHOWERS AND
THUNDERSTORMS WILL FORM ALONG AND AHEAD OF THE FRONT...SO
INTRODUCED SLIGHT CHANCE AND CHANCE POPS BACK INTO THE FORECAST
STARTING MONDAY EVENING. PRECIPITATION CHANCES WILL INCREASE FROM
WEST TO EAST ACROSS CENTRAL INDIANA THROUGH THE COURSE OF MONDAY
NIGHT AS FORCING INTENSIFIES WITH THE COLD FRONT.

&&

.LONG TERM /TUESDAY THROUGH FRIDAY/...

ISSUED AT 235 AM EDT SAT JUL 4 2015

GFS CONTINUES TO SHOW MAINLY A ZONAL FLOW ALOFT DURING THIS TIME
PERIOD...WITH LITTLE IN THE WAY FOR FORCING OR DYNAMICS.
MEANWHILE IN THE LOWER LEVEL A FRONTAL BOUNDARY LOOKS TO REMAIN
STALLED ACROSS INDIANA...PROVIDING A FOCUS FOR LOWER LEVEL
CONVERGENCE. MID LEVELS SUGGEST SOME AREAS OF HIGH RH PUSHING OVER
THE FRONT ON TUESDAY NIGHT AND INTO WEDNESDAY. GIVEN THE AVAILABLE
MOISTURE AND CONVERGENCE WILL CONTINUE TO KEEP POP GOING AS SEEN IN
ALL BLEND.

LATE IN THE WEEK MODELS CONTINUE TO KEEP THE STALLED BOUNDARY
ACROSS CENTRAL INDIANA. HOWEVER MOISTURE AND FORCING REMAINS
SUSPECT. AGAIN...ALL BLEND CONTINUES TO SUGGEST POPS...THUS WILL
TREND TOWARD CONTINUED LOW CHANCE POPS DURING THIS PERIOD.

&&

.AVIATION /DISCUSSION FOR THE 041200Z TAFS/...

ISSUED AT 547 AM EDT SAT JUL 4 2015

VFR CONDITIONS ARE EXPECTED THIS TAF PERIOD.

LINGERING MORNING FOG AT LAF AND BMG WILL QUICKLY BURN OFF THIS
MORNING AS HEATING RESUMES. HIGH PRESSURE WILL CONTINUE TO STREAM
INTO CENTRAL INDIAN FROM THE WEST. FORECAST SOUNDINGS SHOW
CONVECTIVE TEMPS IN THE ATTAINABLE MIDDLE 70S AND CU RULE IS
NEGATIVE...THUS WILL EXPECT SOME SCT CU TO DEVELOP BY LATE
MORNING.

FORECAST SOUNDINGS REMAIN DRY THROUGH THE EVENING AND OVERNIGHT AS
HIGH PRESSURE WILL REMAIN ACROSS THE AREA. DUE TO LIGHT WINDS AND
CLEAR SKIES...SOME PATCHY MVFR FOG WILL ONCE AGAIN BE POSSIBLE
AFTER 050800Z AT LAF...BMG AND HUF.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

SYNOPSIS...TDUD
NEAR TERM...TDUD
SHORT TERM...TDUD
LONG TERM....PUMA
AVIATION...JP

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