Severe Thunderstorm Warning 22, NWS Indianapolis, IN

469 
WWUS53 KIND 100319
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1119 PM EDT THU APR 9 2015

INC021-121-133-165-167-100345-
/O.CON.KIND.SV.W.0022.000000T0000Z-150410T0345Z/
VIGO IN-VERMILLION IN-PUTNAM IN-PARKE IN-CLAY IN-
1119 PM EDT THU APR 9 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
CLAY...SOUTHERN PARKE...SOUTHWESTERN PUTNAM...SOUTHERN VERMILLION AND
VIGO COUNTIES UNTIL 1145 PM EDT...

AT 1116 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR TERRE
HAUTE...AND MOVING NORTHEAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
TERRE HAUTE...CLINTON...BRAZIL...ROCKVILLE...BLANFORD...UNIVERSAL...
RILEY...SHEPARDSVILLE...NORTH TERRE HAUTE...FAIRVIEW PARK...CORY...
SEELYVILLE...ROSEDALE...STAUNTON...FONTANET...MECCA...MONTEZUMA...
CENTER POINT...BRIDGETON AND CARBON.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 0 AND 32.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3935 8758 3935 8756 3936 8754 3966 8754
      3982 8734 3979 8705 3947 8694 3943 8694
      3926 8754 3926 8761 3928 8762 3930 8761
      3931 8762
TIME...MOT...LOC 0319Z 244DEG 34KT 3947 8742

HAIL...1.25IN
WIND...60MPH

$$

TDUD

877 
WWUS53 KIND 100344
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1144 PM EDT THU APR 9 2015

INC021-121-133-165-167-100353-
/O.EXP.KIND.SV.W.0022.000000T0000Z-150410T0345Z/
VIGO IN-VERMILLION IN-PUTNAM IN-PARKE IN-CLAY IN-
1144 PM EDT THU APR 9 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CLAY...SOUTHERN
PARKE...SOUTHWESTERN PUTNAM...SOUTHERN VERMILLION AND VIGO COUNTIES
WILL EXPIRE AT 1145 PM EDT/1045 PM CDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 200 AM EDT/100 AM CDT/.

LAT...LON 3935 8758 3935 8756 3936 8754 3966 8754
      3982 8734 3979 8705 3947 8694 3943 8694
      3926 8754 3926 8761 3928 8762 3930 8761
      3931 8762
TIME...MOT...LOC 0343Z 244DEG 34KT 3957 8716

$$

TDUD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1042 PM EDT THU APR 9 2015

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

&&

.SYNOPSIS...
ISSUED AT 146 PM EDT THU APR 9 2015

A COLD FRONT IS GOING TO CROSS INDIANA OVERNIGHT. FROM FRIDAY TO
SUNDAY A HIGH PRESSURE SYSTEM WILL TRAVEL WEST TO EAST ACROSS OUR
STATE. ANOTHER COLD FRONT IS FORECAST TO TRAVERSE THE HOOSIER STATE
MONDAY. A SECOND HIGH PRESSURE SYSTEM WILL MOVE IN AFTER THAT.
WEDNESDAY A WARM FRONT SHOULD TAKE OVER INDIANA WEATHER.

&&

.NEAR TERM /REST OF TONIGHT/...

ISSUED AT 934 PM EDT THU APR 9 2015

RADAR MOSAIC SHOWS BROKEN LINE OF STORMS ACROSS CENTRAL ILLINOIS
MOVING EAST NORTHEAST TOWARD WESTERN INDIANA AROUND 45 MPH. EXPECT
STORMS TO REACH NORTHWEST COUNTIES AROUND 1030 PM...INDY METRO
MIDNIGHT TO 1 AM...AND SOUTHEAST COUNTIES AROUND 1-3 AM.
INDIVIDUAL CELLS REMAIN IN TACT AND HAVE NOT CONGEALED INTO A LINE
AT THIS POINT. INSTABILITY IS LESS FAVORABLE OVER INDIANA BUT
SHEAR IS STILL PRETTY STRONG. SEVERE THREAT FOR DAMAGING
WINDS/LARGE HAIL/ISOLATED TORNADOES AND FLASH FLOODING REMAINS.

&&

.SHORT TERM /FRIDAY THROUGH SUNDAY/...

ISSUED AT 146 PM EDT THU APR 9 2015
MODELS CONCUR ABOUT A MOSTLY DRY PERIOD. A WEAK WAVE SHOULD MAKE
FRIDAY A PARTLY CLOUDY DAY...AND POSSIBLY GENERATE SPRINKLES IN OUR
NORTHEAST COUNTIES. AFTER THAT IT LOOKS LIKE CLEAR WEATHER UNTIL
SUNDAY WHEN WARM ADVECTION ON THE BACK SIDE OF THE HIGH SHOULD BRING
CLOUDS AGAIN.

THE MODELS ARE VERY CLOSE WITH THE DETERMINISTIC THERMAL FIELDS.
THESE ARE IN LINE WITH THE STATISTICAL GUIDANCE THROUGH TOMORROW.

FRIDAY NIGHT AND SATURDAY ARE A DIFFERENT STORY. THE 850 MILLIBAR
TEMPERATURES APPROACH ZERO AND 1000 TO 500 MILLIBAR THICKNESS DROPS
TO NEAR 540. THIS WOULD BE CONSISTENT WITH TEMPERATURES AT LEAST TWO
CATEGORIES BELOW GUIDANCE. WHILE I AM NOT WILLING TO CUT SO MUCH SO
FAR IN ADVANCE I WILL BE A CATEGORY BELOW THE COLDEST GUIDANCE.

GIVEN THE ABOVE...AND THAT WE WILL BE UNDER THE CENTER OF A DRY
HIGH...FROST WILL BE MENTIONED FRIDAY NIGHT.

THE GUIDANCE GUIDANCE SEEMS TO COME BACK IN LINE WITH THE THERMAL
FIELDS SATURDAY NIGHT AND SUNDAY.

&&

.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/...

ISSUED AT 256 PM EDT THU APR 9 2015

UNSETTLED WEATHER CONDITIONS ARE EXPECTED FOR THE EXTENDED PERIOD.
THE TIMEFRAME BEGINS WITH AN UPPER TROUGH PUSHING EASTWARD FROM THE
UPPER MIDWEST INTO THE GREAT LAKES REGION SUNDAY NIGHT THROUGH
MONDAY. THIS SENDS A FRONTAL BOUNDARY SOUTHEAST INTO CENTRAL INDIANA
ON MONDAY. POPS REMAIN SUNDAY NIGHT AND MONDAY TO ACCOUNT FOR THIS.
MODEL GUIDANCE AND REGIONAL INITIALIZATION IS IN AGREEMENT HERE.
HOWEVER...THAT IS WHERE THE AGREEMENT STOPS. THE 09/00Z EURO LIFTS
THIS FRONTAL BOUNDARY BACK NORTH AS A WARM FRONT ON TUESDAY...WHILE
THE 12Z GFS SHUNTS THE FRONT FURTHER SOUTH AND DOES NOT RETURN IT
NORTH UNTIL WEDNESDAY. DECIDED TO STICK CLOSE TO THE REGIONAL
INITIALIZATION WHICH MIRRORED THE 09/00Z EUROPEAN SOLUTION. THIS
KEPT THE FORECAST AREA UNDER NUMEROUS PERIODS OF SHOWERS AND
THUNDERSTORMS THROUGHOUT THE EXTENDED TIMEFRAME...ESPECIALLY AS A
STRONG UPPER TROUGH EJECTS EASTWARD FROM THE MID TO UPPER ROCKIES ON
WEDNESDAY. AT THE PRESENT TIME...SEVERE WEATHER WOULD BE A
POSSIBILITY WITH THIS STRONG SYSTEM. WILL CONTINUE TO MONITOR
THIS. ABOVE NORMAL HIGH TEMPERATURES CHARACTERIZE THE EXTENDED
PERIOD AS WELL.

&&

.AVIATION /DISCUSSION FOR THE 10/0300Z TAF ISSUANCE/...

ISSUED AT 1040 PM EDT THU APR 9 2015

THE MAIN FOCUS OF TAF PERIOD WILL BE SQUALL LINE WITH POSSIBLE
SEVERE THUNDERSTORMS ALONG AND AHEAD OF IT TONIGHT. LINE IS
EXPECTED TO AFFECT TAF SITES BETWEEN FRI 03-07Z...STARTING WITH
KHUF AND MOVING EASTWARD. VFR CONDITIONS WILL PREVAIL UP TO THAT
POINT...BUT CONDITIONS COULD QUICKLY DETERIORATE TO MVFR OR WORSE
DURING PASSAGE OF SQUALL LINE. VFR CONDITIONS WILL RETURN AROUND
FRI 10-12Z. WINDS WILL REMAIN STRONG THROUGHOUT THE TAF PERIOD
THOUGH EVEN OUTSIDE ANY THUNDERSTORMS. WINDS WILL BE SUSTAINED
OUT OF THE WEST/SOUTHWEST AT 15 TO 20 KTS WITH GUSTS UP TO 35 KTS.
WINDS WILL RELAX SLIGHTLY AROUND DAYBREAK TOMORROW...BUT REMAIN
STRONG OUT OF THE WEST WITH SUSTAINED SPEEDS OF 14 TO 18 KTS AND
GUSTS TO 25 KTS. WINDS WILL NOT SUBSIDE UNTIL TOMORROW EVENING.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL 4 AM EDT FRIDAY FOR INZ021-028>031-
035>049-051>057-060>065-067>072.

&&

SYNOPSIS...JK
NEAR TERM...CP
SHORT TERM...JK
LONG TERM....MRD
AVIATION...TDUD/CP

VISIT US AT HTTP://WWW.WEATHER.GOV/IND

FOLLOW US ON FACEBOOK...TWITTER AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSINDIANAPOLIS
WWW.TWITTER.COM/NWSINDIANAPOLIS
WWW.YOUTUBE.COM/NWSINDIANAPOLIS

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
451 PM EDT THU APR 9 2015

INZ021-028>031-035>049-051>057-060>065-067>072-102100-
CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY-
BOONE-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-VERMILLION-PARKE-
PUTNAM-HENDRICKS-MARION-HANCOCK-HENRY-VIGO-CLAY-OWEN-MORGAN-
JOHNSON-SHELBY-RUSH-SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-
DECATUR-KNOX-DAVIESS-MARTIN-LAWRENCE-JACKSON-JENNINGS-
451 PM EDT THU APR 9 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TONIGHT.

OUTLOOK: THERE IS AN ENHANCED RISK FOR SEVERE THUNDERSTORMS ACROSS
CENTRAL INDIANA TONIGHT.

WINDS...INDEPENDENT OF CONVECTION...WILL GUST AT AROUND 30 TO 40
MPH THROUGH THE NIGHT.

HAZARDS: DAMAGING WIND GUSTS...LARGE HAIL...HEAVY RAINFALL WHICH
MAY CAUSE FLASH FLOODING AND REDUCED VISIBILITY...ISOLATED
TORNADOES.

TIMING: THE BEST CHANCES FOR SEVERE STORMS WILL ARRIVE WITH A
PREFRONTAL SQUALL LINE ARRIVING IN WESTERN INDIANA AFTER 9 PM AND
RACING EAST FROM THERE. ISOLATED SEVERE STORMS WILL BE
POSSIBLE PRIOR TO THAT. ALL SEVERE STORMS SHOULD BE OUT OF THE
AREA BY 4 AM.

DISCUSSION: A COLD FRONT IS EXPECTED TO MOVE THROUGH CENTRAL
INDIANA TONIGHT. ISOLATED TO SCATTERED STORMS ARE POSSIBLE IN THE
WARM SECTOR OVER CENTRAL INDIANA BUT MORE WIDESPREAD THUNDERSTORMS
WITH SEVERE POTENTIAL WILL ARRIVE WITH A SQUALL LINE JUST AHEAD OF
THE COLD FRONT. DAMAGING WINDS...LARGE HAIL...FLASH FLOODING...AND
ISOLATED TORNADOES ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

OUTLOOK: THUNDERSTORM ACTIVITY IS POSSIBLE EARLY NEXT WEEK...FROM
SUNDAY NIGHT THROUGH WEDNESDAY. SEVERE STORMS ARE NOT EXPECTED AT
THIS TIME.

RIVER FLOODING IS EXPECTED TO DEVELOP ALONG AREA RIVERS BY THIS
WEEKEND...AND LINGER INTO NEXT WEEK.

PATCHY FROST IS POSSIBLE EARLY SATURDAY MORNING.

DISCUSSION: HIGH PRESSURE WILL BUILD INTO THE AREA DURING THE
WEEKEND. ANOTHER FRONTAL SYSTEM MAY AFFECT THE AREA BY EARLY NEXT
WEEK WITH THE THREAT FOR ADDITIONAL THUNDERSTORM ACTIVITY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

CP