000
FXUS63 KIWX 082058 CCA
AFDIWX

AREA FORECAST DISCUSSION...CORRECTION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
301 PM EST SAT MAR 8 2014

.SYNOPSIS...
ISSUED AT 300 PM EST SAT MAR 8 2014

A WEAK COLD FRONT PRODUCING SNOW AND PATCHY DRIZZLE WILL CONTINUE
TO SLIDE SOUTHEAST THROUGH NORTHEAST INDIANA AND NORTHWEST OHIO
LATE THIS AFTERNOON. DRY AND COLDER AIR WILL FILTER IN BEHIND THIS
SYSTEM TONIGHT WITH LOW TEMPERATURES FORECAST TO DROP INTO THE
TEENS AND LOW 20S. SUNDAY INTO MONDAY WILL FEATURE A MODERATING
TREND AS WINDS INCREASE OUT OF THE SOUTHWEST.

&&

.SHORT TERM...(THIS EVENING THROUGH SUNDAY)
ISSUED AT 300 PM EST SAT MAR 8 2014

PATCHY LIGHT SNOW AND DRIZZLE INVOF A SEWD SINKING ELEVATED FRONT
WILL CONTINUE TO TAPER OFF FROM NW TO SE LATE THIS AFTN/EARLY EVE.
NO ACCUMULATION/IMPACT ANTICIPATED ON ROADS. LARGE SCALE
DRYING/SUBSIDENCE OVERSPREADS TONIGHT INTO SUNDAY MORNING IN WAKE
OF A POSITIVELY TILTED SHORTWAVE TROUGH. BRIEF COLD/DRY ADVECTION
BURST SHOULD HELP SCATTER OUT LOW STRATUS FROM NW TO SE...ALTHOUGH
SOME CONCERN THAT EXTENSIVE STRATUS DECK MAY LINGER LONGER THAN
CURRENTLY FCST WITH 925 MB RIDGE AXIS NOT MODELED TO TRANSLATE
THROUGH UNTIL LATER TONIGHT. OTHERWISE...MAY SEE SOME PATCHY FOG
DEVELOP TOWARD DAYBREAK GIVEN LINGERING NEAR SFC MOISTURE/CLEARING
SKIES/AND WINDS BECOMING LIGHT AS SFC RIDGE NUDGES IN.

LOW LEVEL FLOW VEERS SOUTHWESTERLY TOMORROW AS SURFACE HIGH FOLDS
SOUTH AND NEXT NORTHERN STREAM UPPER WAVE TRACKS INTO ONTARIO.
AMPLE SUNSHINE WITH BULK OF WARM ADVECTION CLOUDS BYPASSING NORTH
WILL SUPPORT A MODEST TEMP RECOVERY INTO THE 30S TO NEAR 40.

&&

.LONG TERM...(SUNDAY NIGHT THROUGH SATURDAY)
ISSUED AT 300 PM EST SAT MAR 8 2014

PROGRESSIVE SPLIT FLW TO START WILL EVOLVE TO AMPLIFIED PNA STATE BY
LT PD. POTENTIAL PHASING ISSUES W/POTENT SW IMPULSE DROPPING OUT OF
CANADA STILL PLAGUE MIDDLE PDS AND XPC SUCCESSIVE MODEL ITERATIONS
WILL BE SLOW TO CATCH ON W/SYS EVOLUTION. THUS SEE LTL REASON TO
STRAY FM PRIOR FCST GIVEN CONTD INDICATED HIGH SPREAD.

HWVR LL THERMAL RIDGE INADV OF THIS SYS WILL YIELD A MILD WX
MON-TUE...ALTHOUGH TEMPERED SOMEWHAT TUE IN FACE OF INCREASING CLDS
AND VEERING TO NRLY FLW. SOME SEMBLANCE OF LOW PRES ADVG THROUGH THE
OH RVR TUE NIGHT-WED WILL BRING SNOW TO THE AREA YET DETAILS REMAIN
UNCERTAIN. BRIEF CAA WING TUCKS IN BEHIND THIS SYS FOR THU FOLLOWED
BY A SERIES OF SW DISTURBANCES EMBEDDED WITHIN STEEPENING NW FLW
ALOFT.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z SUNDAY AFTERNOON)
ISSUED AT 1217 PM EST SAT MAR 8 2014

-DZSN AND IFR/LOW MVFR FLIGHT CONDITIONS WITH FRONTAL WAVE
EXPECTED THROUGH MID AFTN AT SBN AND MID/LATE AFTN AT FWA.
SIGNIFICANT DRYING/SUBSIDENCE BEHIND POSITIVELY TILTED SHORTWAVE
AND DEPARTING ELEVATED FRONT WILL SUPPORT IMPROVING FLIGHT
CONDITIONS TONIGHT...WITH VFR CONDITIONS/LIGHT WINDS ANTICIPATED
OVERNIGHT INTO TOMORROW. HOWEVER...THERE IS SOME CONCERN THAT MVFR
STRATUS MAY LINGER LONGER THAN CURRENTLY PROGGED IN TAFS AS 925 MB
RIDGE AXIS DOESN`T WORK THROUGH UNTIL LATER TONIGHT. ALSO COULD
SEE BR VIS RESTRICTIONS TOWARD DAYBREAK WITH SFC RIDGE
BUILDING/CLEARING SKIES/LINGERING BL MOISTURE WITHIN THINNING
INVERSION...ALTHOUGH BETTER CHANCES LOOKS TO BE WEST OF FWA/SBN.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...NONE.
MI...NONE.
OH...NONE.
LM...NONE.
&&

$$

SYNOPSIS...STEINWEDEL
SHORT TERM...STEINWEDEL
LONG TERM...T
AVIATION...STEINWEDEL


VISIT US AT WWW.WEATHER.GOV/IWX (ALL LOWER CASE)

FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT:
WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.NORTHERNIN.GOV
WWW.TWITTER.COM/NWSIWX
WWW.YOUTUBE.COM/NWSNORTHERNINDIANA