A retrograding upper level low pressure system aided in the production of scattered thunderstorms across southwest Indiana during the evening of the 13th of June. These storms produced some wind damage across Knox County.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS IND wrote it up.
A retrograding upper level low pressure system aided in the production of scattered thunderstorms across southwest Indiana during the evening of the 13th of June. These storms produced some wind damage across Knox County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Indianapolis, IN wrote its last area forecast discussion before the first event at Jul 13, 5:52 PM EST, 1 hour earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE INDIANAPOLIS IN 652 PM EDT SAT JUL 13 2013 .UPDATE... THE AVIATION SECTION HAS BEEN UPDATED BELOW. && .SYNOPSIS... ISSUED AT 315 PM EDT SAT JUL 13 2013 AN UPPER LOW CENTERED JUST WEST OF LOUISVILLE WILL TRACK WEST SOUTHWEST INTO THE SOUTHERN PLAINS AND EVENTUALLY TO NEW MEXICO. MORE HUMID AIR WILL SPREAD INTO OUR REGION NEXT FEW DAYS AND THERE BE LOW CHANCES OF AFTERNOON AND EVENING THUNDERSTORMS. A STRONG AREA OF HIGH PRESSURE ALOFT BUILDING OVER OUR REGION BY TUESDAY WILL PROVIDE A PARTIAL CAP...SO THUNDERSTORM CHANCES WILL BE SLIGHT AT BEST BY THEN. THE HIGH PRESSURE ALOFT WILL ALLOW OUR TEMPERATURES TO BECOME QUITE WARM AND MOST AREAS WILL SEE HIGHS IN THE LOWER 90S BEGINNING MONDAY AND TUESDAY AND CONTINUING FROM THEN UNTIL DAY 7. THE UPPER HIGH WILL RETROGRADE TO THE WEST AND A COLD FRONT WILL MOVE INTO OUR REGION BY DAY 7. && .NEAR TERM /TONIGHT/... ISSUED AT 315 PM EDT SAT JUL 13 2013 SATELLITE INDICATES A PRETTY GOOD CU FIELD ACROSS CENTRAL INDIANA. EVEN THOUGH THUNDERSTORMS HAVE NOT YET DEVELOPED...LAPS INDICATES SURFACE BASED CAPES 1000-2000 J/KG ACROSS OUR SOUTH AND THERE SHOULD BE AT LEAST ISOLATED THUNDERSTORMS ACROSS OUR SOUTH NEXT FEW HOURS. ISOLATED THUNDERSTORMS SHOULD LINGER INTO THIS EVENING ACROSS OUR SOUTH. WENT DRY ALL AREAS AFTER 03Z. WITH LOSS OF DAYTIME HEATING...EXPECT PARTIAL CLEARING MOST AREAS ESPECIALLY NORTH. DEWPOINTS ARE IN THE THE LOWER TO MIDDLE 60S. WILL GO CLOSE TO A MOS BLEND ON TEMPERATURES AS THEY VERIFIED PRETTY WELL LAST NIGHT. && .SHORT TERM /SATURDAY THROUGH TUESDAY/... ISSUED AT 315 PM EDT SAT JUL 13 2013 THE UPPER LOW WILL BE OVER SOUTHERN MISSOURI SUNDAY AND CONTINUE TO THE WEST SOUTHWEST INTO THE SOUTHWEST U.S. AS IT MOVES WESTWARD AN AREA OF HIGH PRESSURE ALOFT WILL EXPAND WEST INTO OUR REGION BY MONDAY NIGHT AND TUESDAY. 850 MB TEMPERATURES WILL INCREASE TO 17-18 DEGREES CELSIUS LATE SUNDAY AND 18-20 DEGREES CELSIUS LATE MONDAY AND TUESDAY. BOUNDARY TEMPERATURES WILL BECOME WARMER. BECAUSE OF A HIGHER WATER CONTENT IN THE GROUND...WENT CLOSER TO THE COOLER MET TEMPERATURES SUNDAY. HOWEVER JUST ABOUT ALL MODELS INDICATE HIGH TEMPERATURES NEAR 90 TO THE LOWER 90S BY MONDAY AND TUESDAY. INDIANAPOLIS WILL LIKELY SEE ITS FIRST 90 DEGREE DAY BEGINNING MONDAY OR TUESDAY. PRECIPITABLE WATER INCREASES TO ABOUT ABOUT 1.9 INCHES BY SUNDAY.AND THEN LOWERS A LITTLE TO ABOUT 1.5 INCHES ACROSS OUR SOUTH MONDAY AND ALL AREAS TUESDAY. I WAS TEMPTED TO DROP MENTION OF THUNDERSTORMS ACROSS OUR SOUTH MONDAY AND TUESDAY AS THE UPPER RIDGE BUILDS AND OUR AIR MASS BECOMES A LITTLE MORE CAPPED. HOWEVER 700 MB TEMPERATURES ARE ONLY ABOUT +8 DEGREES CELSIUS. THIS MAY NOT BE ENOUGH TO COMPLETELY SHUT DOWN MENTION OF THUNDERSTORMS SO WILL CONTINUE LOW CHANCES BOTH MONDAY AND TUESDAY AFTERNOON. WENT CLOSE TO A MOS BLEND ON TEMPERATURES MONDAY AND TUESDAY. THERE WERE BIG DIFFERENCE IN DEW POINTS BETWEEN VARIOUS MOS AND MODELS. IN MOST CASES WENT WITH A BLEND. BOUNDARY DEWPOINTS OF BOTH GFS AND NAM WERE A BIT TOO HIGH...WHILE THE MET DEWPOINTS SEEMED A BIT LOW. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... ISSUED AT 315 PM EDT SAT JUL 13 2013 ENSEMBLES DEPICT A BERMUDA HIGH BUILDING WESTWARD INTO THE ERN MIDWEST AS A RETROGRADING LOW PRESSURE SYSTEM IS SHUNT FARTHER TO THE SW. THE FORECAST WILL NOT BE DRY THOUGH AS ALMOST DAILY DIURNAL CHANCES FOR SHOWERS AND THUNDERSTORMS WILL IMPACT CENTRAL INDIANA THROUGH THIS PERIOD. A COLD FRONT APPEARS TO ARRIVE TOWARD THE END OF THE PERIOD...ON SATURDAY AND DROP SOUTH OVER THE STATE. SINCE IT IS VERY DIFFICULT TO NAIL DOWN CONVECTION IN THIS VERY SUMMER LIKE PATTERN...KEPT WITH LOW CHANCE POPS UNTIL THE END OF THE PERIOD WHEN THE FROPA IS PROGGED TO DROP SOUTH OVER THE AREA. VERY WARM TEMPERATURES AND HIGH HUMIDITY...LIKELY THE HIGHEST TEMPS AND HEAT INDEXES SO FAR THIS SEASON CAN BE EXPECTED THROUGH AT LEAST WED-FRI. MODELS ARE CLOSE IN TYPICAL SUMMER PATTERN OF WEAK SYNOPTIC FEATURES. DONT NEED FOR CHANGES FROM CENTRAL REGION INITIALIZATION. && .AVIATION /DISCUSSION FOR 140000Z TAF ISSUANCE/... ISSUED AT 651 PM EDT SAT JUL 13 2013 A FEW SHOWERS AND THUNDERSTORMS ARE SHOWING UP ON RADAR AT 630 PM MAINLY SOUTH OF THE TAF SITES. THINK THIS TREND WILL HOLD AND STORMS SHOULD DISSIPATE WITHIN AN HOUR OR SO OF SUNSET SO WILL NOT INCLUDE IN THE TAFS. FOR THE OVERNIGHT GUIDANCE IS SHOWING A FEW HOURS OF MAINLY MVFR VISIBILITIES. FORECAST SOUNDINGS SHOW A PRETTY GOOD INVERSION SETTING UP AT ALL SITES BUT KIND. EVEN THOUGH WINDS ARE STILL EASTERLY WHICH GENERALLY BRINGS IN DRIER DEW POINTS...THIS TIME AROUND WITH THE UPPER LOW TO THE SOUTHWEST DEW POINTS IN THE LOW TO MIDDLE 60S ARE HANGING AROUND. SYNTHETIC SATELLITE IMAGERY IS ALSO SHOWING DEVELOPMENT OF FOG/STRATUS ACROSS THE NORTHERN SITES. THINK TEMPO MVFR AT THE OUTLYING SITES AFTER 9Z AND RUNNING THROUGH DAYBREAK SEEMS REASONABLE GIVEN THE OUTLINE ABOVE. COULD SEE SOME THUNDERSTORMS AROUND AGAIN SUNDAY AFTERNOON BUT TIMING/PLACEMENT UNCERTAIN ENOUGH TO LEAVE OUT AT THIS TIME. && .IND WATCHES/WARNINGS/ADVISORIES... NONE. && SYNOPSIS...JH NEAR TERM...JH SHORT TERM...JH LONG TERM....SMF AVIATION...CP VISIT US AT HTTP://WWW.WEATHER.GOV/IND FOLLOW US ON TWITTER AND YOUTUBE AT: WWW.TWITTER.COM/NWSINDIANAPOLIS WWW.YOUTUBE.COM/NWSINDIANAPOLIS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE INDIANAPOLIS IN 341 AM EDT SAT JUL 13 2013 INZ021-028>031-035>049-051>057-060>065-067>072-141000- 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- 341 AM EDT SAT JUL 13 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA. .DAY ONE...TODAY AND TONIGHT. OUTLOOK: ISOLATED TO SCATTERED THUNDERSTORMS. HAZARDS: GUSTY WINDS...HAIL...DANGEROUS LIGHTNING AND HEAVY RAINFALL. TIMING: THIS AFTERNOON INTO THE EARLY EVENING. DISCUSSION: AN UPPER LEVEL LOW WILL TRACK WEST ACROSS THE OHIO VALLEY TODAY...WITH ISOLATED TO SCATTERED THUNDERSTORMS DEVELOPING THIS AFTERNOON INTO THE EARLY EVENING. THE BEST CHANCE FOR THUNDERSTORMS WILL BE SOUTH OF INTERSTATE 70. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. OUTLOOK: ISOLATED TO SCATTERED THUNDERSTORMS ARE POSSIBLE IN THE AFTERNOON AND EVENING EACH DAY SUNDAY THROUGH FRIDAY. WHILE WIDESPREAD SEVERE WEATHER IS NOT EXPECTED AT THIS TIME...A FEW OF THE STRONGER STORMS MAY PRODUCE GUSTY WINDS. ALL THUNDERSTORMS WILL BE CAPABLE OF DANGEROUS LIGHTNING AND TORRENTIAL DOWNPOURS. WITH AN INCREASINGLY WARM AND HUMID AIRMASS EXPANDING INTO THE OHIO VALLEY AND HIGH TEMPERATURES NEAR 90 DEGREES...HEAT INDICES IN THE UPPER 90S TO NEAR 100 DEGREES ARE EXPECTED MONDAY THROUGH FRIDAY. DISCUSSION: A PROGRESSIVELY WARMER AND MORE HUMID AIRMASS WILL BE DRAWN INTO THE REGION AS STRONG RIDGING ALOFT DEVELOPS OVER THE OHIO VALLEY. THIS WILL RESULT IN DAILY CHANCES FOR ISOLATED TO SCATTERED THUNDERSTORMS SUNDAY THROUGH FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. && MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL LOWERCASE) RYAN
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
653 PM EDT SAT JUL 13 2013
INZ068-069-132330-
DAVIESS-MARTIN-
653 PM EDT SAT JUL 13 2013
...STRONG THUNDERSTORM ADVISORY FOR NORTHEASTERN DAVIESS AND CENTRAL
MARTIN COUNTIES UNTIL 730 PM EDT...
AT 651 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR SHOALS...OR 19 MILES SOUTHWEST OF BEDFORD...
MOVING WEST AT 15 MPH.
HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN.
LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
LOOGOOTEE...
BURNS CITY...
WEST BOGGS LAKE...
ODON...
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.
&&
LAT...LON 3870 8715 3889 8707 3880 8668 3875 8668
3862 8671
TIME...MOT...LOC 2253Z 102DEG 15KT 3873 8680
50SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
745 PM EDT SAT JUL 13 2013
INZ067-068-140030-
DAVIESS-KNOX-
745 PM EDT SAT JUL 13 2013
...STRONG THUNDERSTORM ADVISORY FOR WESTERN DAVIESS AND SOUTHERN KNOX
COUNTIES UNTIL 830 PM EDT...
AT 744 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR WASHINGTON...OR 10 MILES NORTH OF
PETERSBURG...MOVING WEST AT 25 MPH.
HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.
LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
VINCENNES...
WHEATLAND...
MONROE CITY...
BRUCEVILLE...
VINCENNES UNIVERSITY...
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.
&&
LAT...LON 3866 8761 3869 8753 3871 8753 3874 8751
3876 8751 3877 8752 3879 8750 3871 8713
3853 8716 3855 8719 3854 8722 3856 8766
TIME...MOT...LOC 2345Z 098DEG 20KT 3863 8726
CPThe Evansville,IN radar (KVWX), 58 km away, was scanning. The volume nearest the first event began at 23:49 UTC.
4 thunderstorm wind. Local standard time, as filed.
Two pretty large trees were downed by damaging thunderstorm wind gusts at the intersection of North Railroad and Sycamore Streets.
Tree limbs were reported down, along with 45 to 50 mph thunderstorm wind gusts.
An 18 by 21 foot stand-alone carport-type structure was blown into a fence by strong thunderstorm wind gusts.
A tree was reported down near the Knights of Columbus and on South 15th Street in Vincennes due to damaging thunderstorm wind gusts.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Indiana in 2013Every state in 2013This day in weather historyWarnings in Indiana, July 2013
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 468920, 468922, 469070, 469071.