Alert archive / Indiana / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 48, NWS Indianapolis, IN

May 30, 20094 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 30, 2009, 9:07 PM EDT for 4 counties in Indiana. It was in force for 53 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 30, 2009, 9:07 PM EDT (01:07 UTC)
Expired: May 30, 2009, 10:00 PM EDT
In force: 53 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon

Counties Boone County, IN, Hendricks County, IN, Montgomery County, IN, Putnam County, IN

The radar

The Indianapolis radar (KIND), 35 km from the middle of the area, began a volume at 01:08 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.

What was reported inside it

Time	Report	Where	Remark
May 30, 10:06 PM EDT	HAIL 1	3 N Danville, IN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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
May 30, 7:29 PM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.1 hours before the alert went out and 170 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: 827 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 1554 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KIND 310107
SVRIND
INC011-063-107-133-310200-
/O.NEW.KIND.SV.W.0048.090531T0107Z-090531T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
907 PM EDT SAT MAY 30 2009

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN BOONE COUNTY IN CENTRAL INDIANA...
  NORTHWESTERN HENDRICKS COUNTY IN CENTRAL INDIANA...
  SOUTHEASTERN MONTGOMERY COUNTY IN WEST CENTRAL INDIANA...
  NORTHEASTERN PUTNAM COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 1000 PM EDT

* AT 906 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  NORTHWEST OF LADOGA...OR NEAR CRAWFORDSVILLE...AND MOVING EAST AT
  30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LADOGA AROUND 915 PM EDT...
  ROACHDALE AROUND 920 PM EDT...
  NEW ROSS AROUND 925 PM EDT...
  JAMESTOWN AROUND 935 PM EDT...

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 41 AND 48.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS LIGHTNING
IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY REMEMBER...IF
YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.

&&

LAT...LON 3987 8655 3980 8643 3966 8662 3990 8692
      4006 8676
TIME...MOT...LOC 0108Z 292DEG 25KT 3998 8685

$$

JOHNSON

2 follow-up statements

000 
WWUS53 KIND 310141
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
941 PM EDT SAT MAY 30 2009

INC011-310152-
/O.CAN.KIND.SV.W.0048.000000T0000Z-090531T0200Z/
BOONE-
941 PM EDT SAT MAY 30 2009

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BOONE COUNTY IS
CANCELLED...

LAT...LON 3989 8686 3999 8672 3998 8671 3993 8671
      3993 8664 3980 8643 3966 8662
TIME...MOT...LOC 0142Z 292DEG 25KT 3989 8656

$$

INC063-107-133-310200-
/O.CON.KIND.SV.W.0048.000000T0000Z-090531T0200Z/
HENDRICKS-MONTGOMERY-PUTNAM-
941 PM EDT SAT MAY 30 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN PUTNAM...WESTERN HENDRICKS AND SOUTHEASTERN
MONTGOMERY COUNTIES...

AT 941 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR NORTH SALEM...OR 20 MILES SOUTHEAST OF CRAWFORDSVILLE...
MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  AMO AROUND 950 PM EDT...
  DANVILLE AROUND 955 PM EDT...

LAT...LON 3989 8686 3999 8672 3998 8671 3993 8671
      3993 8664 3980 8643 3966 8662
TIME...MOT...LOC 0142Z 292DEG 25KT 3989 8656

$$

JOHNSON

000 
WWUS53 KIND 310150
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
950 PM EDT SAT MAY 30 2009

INC107-133-310200-
/O.CAN.KIND.SV.W.0048.000000T0000Z-090531T0200Z/
MONTGOMERY-PUTNAM-
950 PM EDT SAT MAY 30 2009

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PUTNAM AND
SOUTHEASTERN MONTGOMERY COUNTIES IS CANCELLED...

LAT...LON 3980 8643 3966 8662 3978 8670 3988 8670
      3988 8671 3988 8669 3993 8669 3993 8671
      3993 8664
TIME...MOT...LOC 0150Z 292DEG 25KT 3987 8650

$$

INC063-310200-
/O.CON.KIND.SV.W.0048.000000T0000Z-090531T0200Z/
HENDRICKS-
950 PM EDT SAT MAY 30 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR WESTERN HENDRICKS COUNTY...

AT 950 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
 THIS STORM WAS LOCATED 7 MILES NORTH OF DANVILLE...OR 20 MILES WEST
OF INDIANAPOLIS...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  DANVILLE AROUND 955 PM EDT...

LAT...LON 3980 8643 3966 8662 3978 8670 3988 8670
      3988 8671 3988 8669 3993 8669 3993 8671
      3993 8664
TIME...MOT...LOC 0150Z 292DEG 25KT 3987 8650

$$

JOHNSON

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 May 30, 7:22 PM EDT, 1 hour 45 minutes earlier.

Area forecast discussion, May 30, 7:22 PM EDT, 1 hour 45 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
722 PM EDT SAT MAY 30 2009

.AVIATION...

DISCUSSION FOR 00Z TAFS.

TSRA THE ISSUE IN THE FIRST FEW HOURS. WILL HANDLE WITH VCTS
AND CB MENTION GIVEN ITS SCATTERED NATURE AND THEN UPDATE AS
STORMS GET CLOSER AND EXACT TIMING CAN BE DETERMINED. AFTER 03-04Z
THE STORMS WILL END AND THEN IT SHOULD BE VFR FOR THE REST OF THE
PERIOD AS A COLD FRONT CROSSES THE AREA.

&&

.PREV DISCUSSION... /ISSUED 330 PM EDT SAT MAY 30 2009/

DISCUSSION...

PROBLEM OF DAY IS POPS...

THAT BEGINS TONIGHT. CONVECTION HAS NEVER REALLY TAKEN OFF ALONG
DEWPOINT NEAR SW CWA. HOWEVER YOU CAN STILL SEE A FRONT TO OUR
PUSHING INTO ILLINOIS AND A WAVE ALOFT OVER SAME AREA. HARD TO RULE
OUT CHANCE OF CONVECTION COMPLETELY.

IN MORE WESTERN COUNTIES RELATIVELY HIGH POPS ALREADY IN THROUGH 23Z
MAY BE ENOUGH...BUT MOST AREAS WILL NEED A CHANCE FOR EARLY TONIGHT.
WILL BE CLOSER TO MET ON THIS SINCE AS IWX POINTS DRY AIR OVER MOST
OF CWA WILL RESTRAIN THINGS. WILL ALSO ONLY MENTION RW AS OPPOSED TO
TS WHERE DRY AIR DOMINATES.

MODELS ARE IN REASONABLY GOOD AGREEMENT ABOUT SFC HIGH NOW APCHG US
KEEPING DRY WEATHER SUNDAY INTO MONDAY. BY LATE MONDAY QUESTION IS
WHEN NEXT FRONT WILL BRING RAIN. SURPRISINGLY...SREF AND GFS CLOSER
TO EACH OTHER THAN NAM. THIS SUGGESTS NAM SOLN OUTLIER AND MAY NOT
BE OPTIMAL...WHICH IN TURNS SUGGESTS FRONT MAY HANG TO OUR WEST.

ASSUMING FRONT HANGS...IT WILL BE EASY TO FALL INTO TRAP OF BRINGING
IN RAIN TOO FAST. HOWEVER UNTIL I HAVE MORE CONFIDENCE THIS IS HOW
THINGS WILL WORK...I CAN LIFE WITH THE CHC MAV POPS MONDAY INTO
TUESDAY.

GUIDANCE NOT THAT DIFFERENT ON TEMPS. WITH SOUTHLY FLOW DEVELOPING
AROUND HIGH TO SE AS ALL MODELS AGREE...WE MAY GET PRETTY WARM.
HOWEVER THIS WILL BE VERY DEPENDENT ON SKY COVER AND I DONT WANT TO
GET TOO FAR AHEAD OF THE GAME. FOR NOW WILL USE WARMEST OF MAV/MET.

&&

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

AVIATION...JOHNSON

Hazardous weather outlook, May 30, 3:53 AM EDT, 17 hours 14 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
353 AM EDT SAT MAY 30 2009

INZ021-028>031-035>049-051>057-060>065-067>072-310800-
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-
353 AM EDT SAT MAY 30 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TODAY AND TONIGHT.

THUNDERSTORMS ARE POSSIBLE ACROSS ALL OF CENTRAL INDIANA
TODAY. THERE IS A SLIGHT CHANCE THAT SOME STORMS MAY BECOME SEVERE
WITH STRONG WIND...FREQUENT LIGHTNING AND HEAVY RAIN THE MAIN
THREATS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

THUNDERSTORMS ARE POSSIBLE AGAIN MONDAY THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE LATER THIS AFTERNOON.

&&

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

SALLY

In the hours before

Local storm report, May 30, 8:46 PM EDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
846 PM EDT SAT MAY 30 2009

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

0843 PM     FUNNEL CLOUD     MICHIGANTOWN            40.33N 86.39W
05/30/2009                   CLINTON            IN   TRAINED SPOTTER

            SPOTTER NEAR MICHIGANTOWN OBSERVES A ROTATING WALL CLOUD
            WITH A FUNNEL CLOUD ON THE STORM OVER NORTHEASTERN
            CLINTON COUNTY

&&

JOHNSON

Local storm report, May 30, 8:51 PM EDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
851 PM EDT SAT MAY 30 2009

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

0850 PM     HAIL             COVINGTON               40.14N 87.39W
05/30/2009  U0.75 INCH       FOUNTAIN           IN   TRAINED SPOTTER

&&

NIELD

Local storm report, May 30, 8:53 PM EDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
853 PM EDT SAT MAY 30 2009

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

0851 PM     HAIL             COVINGTON               40.14N 87.39W
05/30/2009  E1.25 INCH       FOUNTAIN           IN   TRAINED SPOTTER

            HAIL TO HALF DOLLAR SIZE REPORTED NEAR COVINGTON

&&

JOHNSON

Local storm report, May 30, 8:59 PM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
859 PM EDT SAT MAY 30 2009

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

0855 PM     HAIL             CASTLETON               39.90N 86.05W
05/30/2009  U1.75 INCH       MARION             IN   AMATEUR RADIO

            GOLF BALL SIZED HAIL AT 86TH STREET AND ALLISONVILLE
            ROAD.

&&

NIELD

Local storm report, May 30, 9:03 PM EDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
903 PM EDT SAT MAY 30 2009

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

0855 PM     HAIL             3 SW CASTLETON          39.87N 86.09W
05/30/2009  U0.75 INCH       MARION             IN   AMATEUR RADIO

&&

NIELD

Local storm report, May 30, 9:05 PM EDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
905 PM EDT SAT MAY 30 2009

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

0900 PM     HAIL             1 S CASTLETON           39.89N 86.05W
05/30/2009  E1.00 INCH       MARION             IN   AMATEUR RADIO

            QUARTER SIZED HAIL AT KEYSTONE AND 74TH STREET.

&&

NIELD

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 8:02 PM EDT	Severe Thunderstorm Warning	IND	Henry, Rush	13 min
May 30, 8:08 PM EDT	Severe Thunderstorm Warning	IND	Montgomery, Tippecanoe	27 min
May 30, 8:11 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Howard, Tipton	45 min
May 30, 8:18 PM EDT	Tornado Warning	IND	Boone, Hamilton	42 min
May 30, 8:33 PM EDT	Severe Thunderstorm Warning	IND	Clinton, Hamilton, Tipton	86 min
May 30, 8:40 PM EDT	Severe Thunderstorm Warning	IND	Greene, Sullivan, Vigo	20 min
May 30, 8:40 PM EDT	Tornado Warning	IND	Hamilton, Hancock, Madison, Marion	50 min
May 30, 8:46 PM EDT	Tornado Warning	IND	Clinton, Hamilton, Madison, Tipton	44 min
May 30, 8:53 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery	37 min
May 30, 9:02 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hendricks, Marion	43 min
May 30, 9:23 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Rush, Shelby	52 min
May 30, 9:26 PM EDT	Tornado Warning	IND	Hamilton, Henry, Madison	34 min
May 30, 9:33 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Johnson, Marion, Shelby	42 min
May 30, 9:57 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Johnson, Marion, Morgan	48 min
May 30, 10:18 PM EDT	Areal Flood Warning	IND	Hendricks, Marion	2 hr
May 30, 10:38 PM EDT	Severe Thunderstorm Warning	IND	Johnson, Shelby	37 min
May 30, 11:10 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Rush, Shelby	34 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.