Alert archive / Indiana / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 93, NWS Indianapolis, IN

June 20, 2009Jackson County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jun 20, 2009, 3:03 AM EDT for Jackson County, Indiana. It was in force for 12 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 20, 2009, 3:03 AM EDT (07:03 UTC)
Expired: Jun 20, 2009, 3:15 AM EDT
In force: 12 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon

County Jackson County, IN

The radar

The Louisville radar (KLVX), 90 km from the middle of the area, began a volume at 07:03 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 20, 2:34 AM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 7.1 hours before the alert went out and 205 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1460 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1481 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 92 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 8.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KIND 200703
SVRIND
INC071-200715-
/O.NEW.KIND.SV.W.0093.090620T0703Z-090620T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
303 AM EDT SAT JUN 20 2009

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN JACKSON COUNTY IN SOUTH CENTRAL INDIANA...
  THIS INCLUDES THE CITY OF SEYMOUR...

* UNTIL 315 AM EDT

* AT 302 AM EDT...LOCAL LAW ENFORCEMENT REPORTED A SEVERE
  THUNDERSTORM.  THIS STORM WAS LOCATED NEAR BROWNSTOWN...OR 12 MILES
  SOUTHWEST OF SEYMOUR...AND MOVING SOUTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CROTHERSVILLE AROUND 315 AM EDT...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 39 AND 53.

LAT...LON 3875 8592 3874 8593 3876 8598 3876 8606
      3878 8609 3877 8617 3878 8620 3877 8624
      3877 8628 3904 8581 3881 8580 3873 8588
TIME...MOT...LOC 0703Z 299DEG 43KT 3883 8603

$$

PUMA

2 follow-up statements

000 
WWUS53 KIND 200710
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
310 AM EDT SAT JUN 20 2009

INC071-200715-
/O.CON.KIND.SV.W.0093.000000T0000Z-090620T0715Z/
JACKSON-
310 AM EDT SAT JUN 20 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM EDT
FOR SOUTHEASTERN JACKSON COUNTY...

AT 308 AM EDT...LOCAL LAW ENFORCEMENT REPORTED A SEVERE 
THUNDERSTORM. THE STORM HAS DOWNED POWER LINES IN MEDORA. THIS STORM 
WAS LOCATED NEAR CROTHERSVILLE...OR 12 MILES SOUTH OF 
SEYMOUR...MOVING SOUTHEAST AT 50 MPH.

LAT...LON 3875 8592 3874 8594 3876 8598 3876 8606
      3878 8609 3877 8615 3900 8587 3881 8580
      3873 8588
TIME...MOT...LOC 0709Z 299DEG 44KT 3878 8588

$$

PUMA

000 
WWUS53 KIND 200717
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
317 AM EDT SAT JUN 20 2009

INC071-200725-
/O.EXP.KIND.SV.W.0093.000000T0000Z-090620T0715Z/
JACKSON-
317 AM EDT SAT JUN 20 2009

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JACKSON COUNTY
HAS EXPIRED...

THUNDERSTORM ACTIVITY OVER JACKSON COUNTY HAS DECREASED IN INTENSITY.

LAT...LON 3875 8592 3874 8594 3876 8598 3876 8606
      3878 8609 3877 8615 3900 8587 3881 8580
      3873 8588
TIME...MOT...LOC 0710Z 307DEG 53KT 3875 8588

$$

PUMA

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jun 20, 2:30 AM EDT, 33 minutes earlier.

Area forecast discussion, Jun 20, 2:30 AM EDT, 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
230 AM EDT SAT JUN 20 2009

.DISCUSSION...SFC LOW PRES WAS CENTERED OVER THE UPPER PENINSULA OF
MI AND STRETCHED A CD FRONT ACRS EASTERN MI TO NW OHIO...CENTRAL
INDIANA AND CENTRAL IL. A COMPLEX OF TSRA WAS FOUND OUT AHEAD OF THE
FRONT...EXITING CENTRAL INDIANA. HIGH PRES WAS FOUND ACRS THE
CENTRAL PLAINS. H2O VAPOR IMAGERY SHOWS A LARGE AREA OF HIGH PRES
ACRS THE GULF COAST SPREADING NORTHWARD TO TN. A RING OF DEEP
MOISTURE REMAINED ON THE NRN EDGE OF THIS SYSTEM...ACRS THE OHIO RVR
VALLEY.

MAIN FORECAST CHALLENGE TDY WL BE TEMPS.

MODELS INITIALIZING MUCH BETTER THIS MORNING IN HANDLING THE ONGOING
CONVECTION ACRS THE AREA...AND WL USE A BLEND. FORECAST SOUNDINGS
DRY OUT CONSIDERABLY TDY IN THE MIDDLE AND UPPER LEVELS IN THE WAKE
OF THE CD FRONT. TIME HEIGHT SECTIONS SHOW GOOD SUBSIDENCE. H2O
VAPOR IMAGERY SHOWS INTRUDING DRY AIR ACRS NRN IL AND IA...HEADED
OUR WAY IN THE NW FLOW. WITH A SLIGHTLY NEGATIVE CU RULE...EXPECT
DRY WX ALONG WITH PTCLDY SKIES. H8 TEMPS STILL REMAIN RATHER
WARM...NEAR 18-19C. GIVEN THIS...MAVMOS HIGHS IN THE UPPER 80S LOOK
REASONABLE. WL STICK CLOSE.

SFC RIDGE OF HIGH PRES WL BUILD ACRS INDIANA TONIGHT. MID LEVEL
SUBSIDENCE REMAINS IN THE NW FLOW. TIME SECTIONS AND FORECAST
SOUNDINGS REMAIN VERY DRY IN THE MIDDLE LVLS. THUS PARTLY CLOUDY
SKIES APPEAR THE WAY TO GO...AND GIVEN THE EXPECTED DEW POINTS AGAIN
MAVMOS LOWS IN THE UPPER 60S APPEAR ON THE MARK.

GFS AND NGM HINT AT SOME MID LVL MOISTURE ARRIVING ON
SUNDAY...RIDING AROUND THE RIDGE. MEANWHILE A SFC AND MID LVL RIDGE
WL REMAIN IN PLACE. CAPE ON SUNDAY APPEAR RATHER LIMITED...ONLY
AROUND 200 J/KG. EXPECT MORE CLOUDS ON SUNDAY AND WL LEAVE POPS OUT
FOR NOW. AS FOR TEMPS WL LEAN COOLER THAN THEN MAVMOS BY 1-2 DEGREES
DUE TO SOME EXPECTED HIGHER LVL CLOUDS.

NAM AND GFS BOTH HINT AT SOME CONVECTION ON SUNDAY NIGHT AND EARLY
MONDAY MORNING RIDING THE RIDGE. ATTM FORECAST SOUNDINGS SHOW
LIMITED INSTABILITY WITH LI/S ONLY NEAR -1. HOWEVER THIS DOES APPEAR
TO BE THE BEST MOMENT FOR ANY PCPN IN THE NEXT COUPLE OF DAYS. WL
INTRODUCE SOME LOW CHC POPS FOR NOW...ALTHOUGH CONFIDENCE IS LOW.
WITH A FEW MORE CLOUDS EXPECTED ON MONDAY AND H8 TEMPS NEAR 16C WL
LEAN COOLER THAN THE MAVMOS BY 1-2 DEGREES.

&&

.AVIATION...DISCUSSION FOR 06Z.
SECOND LINE OF STORMS HAS ALREADY CLEARED LAF AND SHUD CLEAR IND BY
06Z HOWEVER LINGERING STORMS MAY IMPACT HUF/BMG THROUGH 9Z SINCE THE
ACTUAL FRONT WILL NOT CLEAR THE AREA UNTIL 12Z SAT. AS SUCH WE MAY
ALSO SEE SOME LIGHT FOG DEVELOP WITH HIGH DEWPOINTS AND WIDESPREAD
RAINS TONIGHT.

VFR CONDS SHOULD DEVELOP AND PREVAIL BY 15Z AT ALL SITES AS THE
FRONT FINALLY MOVES TOWARD THE OH RIVER.

&&

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

&&

AVIATION...CP
PUBLIC...PUMA

Hazardous weather outlook, Jun 19, 7:34 PM EDT, 7 hours 29 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
734 PM EDT FRI JUN 19 2009

INZ021-028>031-035>049-051>057-060>065-067>072-202345-
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-
734 PM EDT FRI JUN 19 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TONIGHT.

SEVERE THUNDERSTORMS WILL IMPACT THE AREA TONIGHT.

SEVERE THUNDERSTORMS WILL MOVE FROM WEST TO EAST ACROSS CENTRAL
INDIANA PRODUCING DAMAGING WINDS...LARGE HAIL ALONG WITH A RISK
FOR TORNADOES TONIGHT. THE GREATEST RISK FOR SEVERE WEATHER WILL
OCCUR THROUGH 3 AM EDT OVERNIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

THUNDERSTORMS WILL BE POSSIBLE ON SATURDAY ONCE AGAIN. THESE
STORMS ARE NOT EXPECTED TO BE SEVERE AT THIS TIME. LIGHTNING IS A
THREAT FROM ANY THUNDERSTORM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION HAS OCCURRED TONIGHT

&&

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

In the hours before

Local storm report, Jun 19, 10:27 PM EDT, 4 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1027 PM EDT FRI JUN 19 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1010 PM     TSTM WND DMG     BROOKLYN                39.54N 86.37W
06/19/2009                   MORGAN             IN   TRAINED SPOTTER

            TREE DOWN.

&&

ABROOKS

Local storm report, Jun 19, 10:29 PM EDT, 4 hours 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1029 PM EDT FRI JUN 19 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1022 PM     TSTM WND GST     FISHERS                 39.95N 86.02W
06/19/2009  M65 MPH          HAMILTON           IN   AMATEUR RADIO

            WIND GUST AT 116TH STREET AND ALLISONVILLE ROAD.

&&

ABROOKS

Local storm report, Jun 19, 10:33 PM EDT, 4 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1033 PM EDT FRI JUN 19 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1017 PM     TSTM WND GST     15 N MORGANTOWN         39.59N 86.26W
06/19/2009  E50 MPH          MORGAN             IN   TRAINED SPOTTER

&&

ABROOKS

Local storm report, Jun 19, 10:54 PM EDT, 4 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1054 PM EDT FRI JUN 19 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0955 PM     TSTM WND DMG     2 SE BROWNSBURG         39.82N 86.37W
06/19/2009                   HENDRICKS          IN   TRAINED SPOTTER

            SEVERAL TREES DOWN.

&&

ABROOKS

Local storm report, Jun 19, 11:48 PM EDT, 3 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1148 PM EDT FRI JUN 19 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0905 PM     TSTM WND DMG     MECCA                   39.73N 87.33W
06/19/2009                   PARKE              IN   LAW ENFORCEMENT

            TREES AND POWER LINES DOWN.

&&

ABROOKS

Local storm report, Jun 20, 12:14 AM EDT, 2 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1214 AM EDT SAT JUN 20 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1213 AM     TSTM WND GST     LEBANON                 40.05N 86.47W
06/20/2009  E50 MPH          BOONE              IN   TRAINED SPOTTER

&&

ABROOKS

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 19, 8:13 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery	32 min
Jun 19, 8:22 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Parke, Vermillion, Warren	53 min
Jun 19, 8:43 PM EDT	Tornado Warning	IND	Fountain	32 min
Jun 19, 8:50 PM EDT	Severe Thunderstorm Warning	IND	Clay, Parke, Vermillion, Vigo	55 min
Jun 19, 8:54 PM EDT	Tornado Warning	IND	Fountain	36 min
Jun 19, 9:00 PM EDT	Severe Thunderstorm Warning	IND	Montgomery	45 min
Jun 19, 9:06 PM EDT	Tornado Warning	IND	Fountain, Montgomery, Parke, Putnam	24 min
Jun 19, 9:28 PM EDT	Severe Thunderstorm Warning	IND	Clay, Hendricks, Morgan, Owen, Parke, Putnam and 1 more	47 min
Jun 19, 9:32 PM EDT	Tornado Warning	IND	Boone, Hendricks, Montgomery, Putnam	28 min
Jun 19, 9:55 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hancock, Hendricks, Madison, Marion	50 min
Jun 19, 10:07 PM EDT	Severe Thunderstorm Warning	IND	Brown, Hendricks, Johnson, Marion, Morgan, Owen	38 min
Jun 19, 10:35 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Henry, Madison	25 min
Jun 19, 11:16 PM EDT	Areal Flood Warning	IND	Fountain, Parke, Vermillion	119 min
Jun 19, 11:21 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke, Putnam	24 min
Jun 19, 11:44 PM EDT	Severe Thunderstorm Warning	IND	Montgomery, Parke, Putnam	31 min
Jun 20, 12:02 AM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Hamilton, Tipton	21 min
Jun 20, 1:17 AM EDT	Severe Thunderstorm Warning	IND	Greene, Knox, Sullivan	43 min
Jun 20, 2:25 AM EDT	Flash Flood Warning	IND	Daviess, Greene, Knox, Sullivan	3 hr
Jun 20, 12:13 PM EDT	River Flood Warning	IND	Parke, Vermillion, Vigo	22 hr
Jun 20, 12:13 PM EDT	River Flood Warning	IND	Sullivan, Vigo	22 hr
Jun 20, 12:13 PM EDT	River Flood Warning	IND	Knox, Sullivan	62 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2009 Every severe thunderstorm warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.