Alert archive / Kentucky / Special Weather Statements in 2010

Special Weather Statement, NWS Louisville, KY

August 4, 2010Monroe County, Kentucky

NWS Louisville, KY issued this special weather statement at Aug 4, 2010, 1:49 PM CDT for Monroe County, Kentucky. It was in force for 41 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: Aug 4, 2010, 1:49 PM CDT (18:49 UTC)
Expired: Aug 4, 2010, 2:30 PM CDT
In force: 41 min
Issued by: NWS Louisville, KY

County Monroe County, KY

The radar

The Nashville radar (KOHX), 91 km from the middle of the area, began a volume at 18:51 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.8 hours before the alert went out and 341 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: 2520 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 858 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.4

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 Aug 4, 12:32 PM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, Aug 4, 12:32 PM CDT, 1 hour 17 minutes before

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Hazardous weather outlook, Aug 4, 10:30 AM CDT, 3 hours 19 minutes before

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In the hours before

Special weather statement, Aug 4, 1:49 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
249 PM EDT WED AUG 4 2010

KYZ075-076-041930-
METCALFE-MONROE-
149 PM CDT WED AUG 4 2010

...STRONG THUNDERSTORMS WITH DANGEROUS LIGHTNING...HEAVY RAIN...SMALL
HAIL...AND STRONG WINDS...

AT 148 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES NORTHWEST OF
TOMPKINSVILLE TO 13 MILES NORTHWEST OF RED BOILING SPRINGS...AND
MOVING NORTHEAST AT 15 MPH.

FREQUENT CLOUD TO GROUND LIGHTNING...HEAVY RAIN WITH RAINFALL RATES
OF AROUND ONE INCH PER HOUR REDUCING VISIBILITIES TO LESS THAN ONE
MILE...SMALL PEA OR DIME SIZE HAIL...AND STRONG GUSTY WINDS OF AROUND
45 TO 50 MPH...ARE EXPECTED WITH THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THESE STORMS...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 3668 8596 3672 8598 3683 8580 3684 8577
      3685 8575 3686 8575 3693 8561 3685 8560
      3667 8578
TIME...MOT...LOC 1850Z 244DEG 14KT 3682 8577 3676 8584
          3671 8594

RS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 3:16 AM CDT	Excessive Heat Warning	LMK	Allen, Barren, Breckinridge, Bullitt, Butler, Edmonson and 10 more	17 hr
Aug 4, 1:54 PM CDT	Special Weather Statement	LMK	Harrison	21 min
Aug 4, 2:48 PM CDT	Areal Flood Advisory	LMK	Allen, Barren, Monroe	2 hr
Aug 4, 2:55 PM CDT	Special Weather Statement	LMK	Nelson, Washington	20 min
Aug 4, 3:04 PM CDT	Severe Thunderstorm Warning	LMK	Anderson, Nelson, Washington	26 min
Aug 4, 3:47 PM CDT	Special Weather Statement	LMK	Washington	28 min
Aug 4, 4:18 PM CDT	Special Weather Statement	LMK	Butler	27 min
Aug 4, 4:41 PM CDT	Special Weather Statement	LMK	Grayson	34 min
Aug 4, 5:44 PM CDT	Special Weather Statement	LMK	Nicholas	31 min
Aug 4, 6:02 PM CDT	Special Weather Statement	LMK	Monroe	28 min

Nearby

Special Weather Statements in Kentucky, 2010 Every special weather statement in 2010

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.