Alert archive / Indiana / Special Weather Statements in 2012

Special Weather Statement, NWS Louisville, KY

July 4, 2012Dubois County, Indiana

NWS Louisville, KY issued this special weather statement at Jul 4, 2012, 3:06 PM EDT for Dubois County, Indiana. It was in force for 29 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: Jul 4, 2012, 3:06 PM EDT (19:06 UTC)
Expired: Jul 4, 2012, 3:35 PM EDT
In force: 29 min
Issued by: NWS Louisville, KY

County Dubois County, IN

The radar

The Evansville,IN radar (KVWX), 64 km from the middle of the area, began a volume at 19:08 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.1 hours before the alert went out and 238 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: 1214 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 1352 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Louisville, KY wrote its last area forecast discussion before this special weather statement went out at Jul 4, 1:28 PM EDT, 1 hour 38 minutes earlier.

Area forecast discussion, Jul 4, 1:28 PM EDT, 1 hour 38 minutes before

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Hazardous weather outlook, Jul 4, 11:23 AM EDT, 3 hours 43 minutes before

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In the hours before

Special weather statement, Jul 4, 3:06 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
306 PM EDT WED JUL 4 2012

INC037-041935-
DUBOIS IN-
306 PM EDT WED JUL 4 2012

...STRONG THUNDERSTORM WITH DANGEROUS LIGHTNING...HEAVY RAIN...HALF
INCH HAIL...AND 50 MPH WINDS ACROSS SOUTHWEST DUBOIS COUNTY...

AT 303 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 6 MILES NORTH OF DALE...AND MOVING SOUTH AT 5
MPH.

FREQUENT CLOUD TO GROUND LIGHTNING...HEAVY RAIN WITH RAINFALL RATES
OF AROUND ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE
MILE...HALF INCH HAIL...AND STRONG GUSTY WINDS OF AROUND 45 TO 50
MPH...ARE EXPECTED WITH THIS STORM.

* THIS STORM WILL ALSO IMPACT...
  JOHNSBURG AND SAINT HENRY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY
AWAY FROM WINDOWS. STAY TUNED TO NOAA ALL HAZARDS RADIO...
WEATHER.GOV/LOUISVILLE ON THE INTERNET...OR LOCAL MEDIA FOR LATER
UPDATES AND POSSIBLE WARNINGS.

&&

LAT...LON 3831 8691 3820 8691 3820 8702 3820 8707
      3821 8708 3832 8708
TIME...MOT...LOC 1906Z 006DEG 3KT 3824 8701

MP

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 4, 4:53 PM EDT	Special Weather Statement	LMK	Edmonson	32 min
Jul 4, 4:55 PM EDT	Special Weather Statement	LMK	Barren	30 min
Jul 4, 5:01 PM EDT	Special Weather Statement	LMK	Logan	29 min
Jul 4, 5:07 PM EDT	Severe Thunderstorm Warning	LMK	Logan	28 min
Jul 4, 5:25 PM EDT	Special Weather Statement	LMK	Barren	30 min
Jul 4, 6:53 PM EDT	Severe Thunderstorm Warning	LMK	Butler, Edmonson, Warren	32 min
Jul 4, 7:01 PM EDT	Special Weather Statement	LMK	Warren	29 min
Jul 4, 7:57 PM EDT	Special Weather Statement	LMK	Cumberland	28 min
Jul 4, 3:11 PM EDT	Severe Thunderstorm Warning	LMK	Dubois	29 min
Jul 4, 3:49 PM EDT	Special Weather Statement	LMK	Perry	31 min
Jul 4, 4:24 PM EDT	Special Weather Statement	LMK	Perry	31 min
Jul 4, 6:10 PM EDT	Special Weather Statement	LMK	Washington	30 min
Jul 4, 6:24 PM EDT	Severe Thunderstorm Warning	LMK	Washington	31 min

Nearby

Special Weather Statements in Indiana, 2012 Every special weather statement in 2012

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.