Alert archive / Indiana / Flash Flood Warnings in 2016

Flash Flood Warning 9, NWS Paducah, KY

April 27, 2016Vanderburgh County, Indiana

NWS Paducah, KY issued this flash flood warning at Apr 27, 2016, 6:01 PM CDT for Vanderburgh County, Indiana. It was in force for 3 hr. 2 reports 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: Apr 27, 2016, 6:01 PM CDT (23:01 UTC)
Expired: Apr 27, 2016, 9:00 PM CDT
In force: 3 hr
Issued by: NWS Paducah, KY
Area: Storm-based polygon
Flood severity: None

County Vanderburgh County, IN

The radar

The Evansville,IN radar (KVWX), 36 km from the middle of the area, began a volume at 23:03 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.

What was reported inside it

Time	Report	Where	Remark
Apr 27, 6:03 PM CDT	FLASH FLOOD	Evansville, IN	TWO VEHICLES IN HIGH WATER AT MAIN AND DIVISION
Apr 27, 6:16 PM CDT	FLASH FLOOD	Evansville, IN	FLOODING REPORTED ALONG LLOYD EXPRESSWAY. REPORTS OF A FEW WATER RESCUES.

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

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.0 hours before the alert went out and 221 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: 669 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 828 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 166 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

913 
WGUS53 KPAH 272301
FFWPAH
INC163-280200-
/O.NEW.KPAH.FF.W.0009.160427T2301Z-160428T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
601 PM CDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  VANDERBURGH COUNTY IN SOUTHWESTERN INDIANA...

* UNTIL 900 PM CDT

* AT 559 PM CDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY. TWO FEET OF WATER WAS STANDING IN THE
  ROAD NEAR DEACONESS HOSPITAL. MORE THUNDERSTORMS ARE MOVING INTO
  THE EVANSVILLE AREA. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  EVANSVILLE...MELODY HILL...DARMSTADT AND KASSON. 

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

LAT...LON 3817 8747 3804 8747 3803 8745 3794 8745
      3791 8751 3794 8757 3797 8758 3797 8760
      3792 8763 3789 8759 3786 8759 3783 8762
      3783 8767 3786 8768 3789 8766 3790 8768
      3790 8770 3817 8769

$$

PS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 9:14 AM CDT	Special Weather Statement	PAH	Gibson, Pike, Posey, Spencer, Vanderburgh, Warrick	61 min
Apr 27, 6:14 PM CDT	Flash Flood Warning	PAH	Spencer, Warrick	3 hr

Nearby

Flash Flood Warnings in Indiana, 2016 Every flash flood warning in 2016

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.