Alert archive / Indiana / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 45, NWS Indianapolis, IN

May 30, 2009Greene County, Sullivan County, Vigo County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 30, 2009, 8:40 PM EDT for Greene County, Sullivan County, Vigo County, Indiana. It was in force for 20 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: May 30, 2009, 8:40 PM EDT (00:40 UTC)
Expired: May 30, 2009, 9:00 PM EDT
In force: 20 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon

Counties Greene County, IN, Sullivan County, IN, Vigo County, IN

The radar

The Evansville,IN radar (KVWX), 101 km from the middle of the area, began a volume at 00:42 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
May 30, 4:49 PM EDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 0.7 hours before the alert went out and 142 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 310040
SVRIND
INC055-153-167-310130-
/O.NEW.KIND.SV.W.0045.090531T0040Z-090531T0130Z/

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

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL GREENE COUNTY IN SOUTHWEST INDIANA...
  SULLIVAN COUNTY IN SOUTHWEST INDIANA...
  SOUTHWESTERN VIGO COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 930 PM EDT/830 PM CDT/

* AT 839 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 NEAR
  FAIRBANKS...OR 15 MILES SOUTHEAST OF MARSHALL...AND MOVING
  SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GRAYSVILLE AROUND 850 PM EDT...
  MEROM AROUND 855 PM EDT...
  SHELBURN AROUND 900 PM EDT...
  SULLIVAN AROUND 910 PM EDT...

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 3917 8766 3921 8759 3925 8759 3926 8762
      3929 8762 3933 8758 3894 8707 3890 8745
      3906 8759 3914 8768
TIME...MOT...LOC 0040Z 310DEG 21KT 3920 8756

$$

JOHNSON

2 follow-up statements

000 
WWUS53 KIND 310056 RRA
SVSIND

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

INC167-310107-
/O.CAN.KIND.SV.W.0045.000000T0000Z-090531T0130Z/
VIGO-
856 PM EDT SAT MAY 30 2009

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

LAT...LON 3921 8759 3920 8755 3923 8755 3923 8745
      3894 8707 3891 8745 3906 8752 3912 8752
      3916 8756
TIME...MOT...LOC 0057Z 310DEG 21KT 3914 8746

$$

INC055-153-310130-
/O.CON.KIND.SV.W.0045.000000T0000Z-090531T0130Z/
GREENE-SULLIVAN-
856 PM EDT SAT MAY 30 2009

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR WEST CENTRAL GREENE AND SULLIVAN COUNTIES...

AT 856 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 SULLIVAN...OR 17 MILES NORTHEAST OF ROBINSON...MOVING
SOUTHEAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  SULLIVAN AROUND 905 PM EDT...
  PAXTON AROUND 915 PM EDT...
  DUGGER AROUND 925 PM EDT...
  PLEASANTVILLE AROUND 930 PM EDT...

LAT...LON 3921 8759 3920 8755 3923 8755 3923 8745
      3894 8707 3891 8745 3906 8752 3912 8752
      3916 8756
TIME...MOT...LOC 0057Z 310DEG 21KT 3914 8746

$$

JOHNSON

000 
WWUS53 KIND 310100
SVSIND

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

INC055-153-310110-
/O.CAN.KIND.SV.W.0045.000000T0000Z-090531T0130Z/
GREENE-SULLIVAN-
900 PM EDT SAT MAY 30 2009

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL GREENE AND
SULLIVAN COUNTIES IS CANCELLED...

THE STORM HAS WEAKENED AND IS NO LONGER SEVERE.

LAT...LON 3921 8759 3920 8755 3923 8755 3923 8745
      3894 8707 3891 8745 3906 8752 3912 8752
      3916 8756
TIME...MOT...LOC 0100Z 310DEG 21KT 3913 8745

$$

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 18 minutes earlier.

Area forecast discussion, May 30, 7:22 PM EDT, 1 hour 18 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, 16 hours 47 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, 8:10 PM EDT, 30 minutes before

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

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

0810 PM     FUNNEL CLOUD     6 NW LEBANON            40.11N 86.55W
05/30/2009                   BOONE              IN   TRAINED SPOTTER

            MULTIPLE REPORTS OF FUNNEL CLOUDS AND WALL CLOUDS.

&&

JOHNSON

Local storm report, May 30, 8:11 PM EDT, 29 minutes before

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

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

0811 PM     HAIL             FLORA                   40.54N 86.52W
05/30/2009  U1.00 INCH       CARROLL            IN   LAW ENFORCEMENT

&&

JOHNSON

Local storm report, May 30, 8:19 PM EDT, 21 minutes before

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

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

0819 PM     TSTM WND GST     SHERIDAN                40.13N 86.22W
05/30/2009  E60 MPH          HAMILTON           IN   LAW ENFORCEMENT

            WIND GUSTS ESTIMATED GREATER THAN 60 MPH AND DIME SIZE
            HAIL

&&

JOHNSON

Local storm report, May 30, 8:36 PM EDT, 4 minutes before

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

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

0833 PM     HAIL             9 E LEBANON             40.05N 86.30W
05/30/2009  U0.75 INCH       BOONE              IN   AMATEUR RADIO

&&

NIELD

Special weather statement, May 30, 8:36 PM EDT, 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
836 PM EDT SAT MAY 30 2009

INZ030-036-037-310100-
BOONE-CLINTON-MONTGOMERY-
836 PM EDT SAT MAY 30 2009

...STRONG THUNDERSTORM ADVISORY FOR NORTHEASTERN MONTGOMERY...
NORTHWESTERN BOONE AND SOUTHWESTERN CLINTON COUNTIES UNTIL 900 PM
EDT...

AT 836 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM.  THIS STORM WAS LOCATED NEAR COLFAX...OR 12
MILES NORTHEAST OF CRAWFORDSVILLE...AND MOVING EAST AT 30 MPH.

NICKEL SIZE HAIL IS EXPECTED WITH THIS STORM.

* THIS STORM WILL BE NEAR...
  COLFAX AROUND 845 PM EDT...
  THORNTOWN AROUND 850 PM EDT...

BE PREPARED TO TAKE SHELTER IN THE EVENT THIS STORM INTENSIFIES AND
BECOMES SEVERE...OR A WARNING IS ISSUED BY THE NATIONAL WEATHER
SERVICE.

HAINES

Local storm report, May 30, 8:37 PM EDT, 3 minutes before

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

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

0805 PM     HAIL             RUSSIAVILLE             40.42N 86.27W
05/30/2009  U0.75 INCH       HOWARD             IN   AMATEUR RADIO

&&

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	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, 9:07 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hendricks, Montgomery, Putnam	53 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.