Alert archive / Indiana / Flash Flood Warnings in 2011
Flash Flood Warning 28, NWS Indianapolis, IN
NWS Indianapolis, IN issued this flash flood warning at Jun 18, 2011, 3:41 AM EDT for Knox County, Indiana. It was in force for 6 hr. 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
- Jun 18, 2011, 3:41 AM EDT (07:41 UTC)
- Expired
- Jun 18, 2011, 9:30 AM EDT
- In force
- 6 hr
- Issued by
- NWS Indianapolis, IN
- Area
- Storm-based polygon
- Flood severity
- None
County Knox County, IN
The radar
The Evansville,IN radar (KVWX), 45 km from the middle of the area, began a volume at 07:42 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 5:00 AM EDT | HEAVY RAIN 3 | 7 S Vincennes, IN | 3 INCHES OF RAIN FELL BETWEEN 2 AM AND 5 AM. AT ONE POINT THE RAINFALL RATE WAS 15 INCHES PER HOUR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 7.7 hours before the alert went out and 195 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.
- Mixed-layer CAPE
- 601 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 644 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
025
WGUS53 KIND 180741
FFWIND
INC083-181330-
/O.NEW.KIND.FF.W.0028.110618T0741Z-110618T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
341 AM EDT SAT JUN 18 2011
THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
KNOX COUNTY IN SOUTHWEST INDIANA...
* UNTIL 930 AM EDT
* AT 339 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING AREA OF THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. IN FAR SOUTHWEST KNOX COUNTY UP TO 2 INCHES OF RAIN HAS
FALLEN OVER THE COURSE OF THE LAST HOUR...WITH AN ADDITIONAL 2 TO 4
INCHES OF RAINFALL POSSIBLE THROUGH 9 AM THIS MORNING.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
VINCENNES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN
THE WARNED AREA.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
INDIANAPOLIS.
&&
LAT...LON 3842 8775 3846 8776 3851 8765 3855 8767
3864 8763 3869 8753 3874 8751 3886 8756
3890 8754 3890 8713 3877 8726 3875 8724
3869 8728 3861 8724 3852 8726 3853 8746
3849 8749 3849 8757 3844 8760
$$
SMF1 follow-up statement
441
WGUS73 KIND 181018
FFSIND
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
618 AM EDT SAT JUN 18 2011
INC083-181330-
/O.CON.KIND.FF.W.0028.000000T0000Z-110618T1330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KNOX-
618 AM EDT SAT JUN 18 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR KNOX COUNTY UNTIL 930 AM
EDT...
AT 617 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. AN
ADDITIONAL 1 TO 2 INCHES OF RAIN IS POSSIBLE.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
VINCENNES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS.
&&
LAT...LON 3842 8775 3846 8776 3851 8765 3855 8767
3864 8763 3869 8753 3874 8751 3886 8756
3890 8754 3890 8713 3877 8726 3875 8724
3869 8728 3861 8724 3852 8726 3853 8746
3849 8749 3849 8757 3844 8760
$$
SMFThe office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 3:18 AM EDT | Special Weather Statement | IND | Knox | 42 min |
| Jun 18, 3:41 AM EDT | Severe Thunderstorm Warning | IND | Knox | 49 min |
| Jun 18, 4:20 AM EDT | Special Weather Statement | IND | Clay, Vigo | 40 min |
| Jun 18, 4:25 AM EDT | Severe Thunderstorm Warning | IND | Clay, Owen, Sullivan, Vigo | 50 min |
| Jun 18, 9:30 AM EDT | Flash Flood Warning | IND | Knox | 4 hr |
| Jun 18, 1:29 PM EDT | Areal Flood Warning | IND | Knox | 8 hr |
| Jun 18, 7:49 PM EDT | Areal Flood Advisory | IND | Marion | 101 min |
Nearby
Flash Flood Warnings in Indiana, 2011Every flash flood warning in 2011
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.