Alert archive / Indiana / Special Weather Statements in 2012

Special Weather Statement, NWS Indianapolis, IN

April 16, 2012Clay County, Sullivan County, Indiana

NWS Indianapolis, IN issued this special weather statement at Apr 16, 2012, 2:07 AM EDT for Clay County, Sullivan County, Indiana. It was in force for 23 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
Apr 16, 2012, 2:07 AM EDT (06:07 UTC)
Expired
Apr 16, 2012, 2:30 AM EDT
In force
23 min
Issued by
NWS Indianapolis, IN

Counties Clay County, IN, Sullivan County, IN

The radar

The Indianapolis radar (KIND), 100 km from the middle of the area, began a volume at 06:10 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

Lincoln, IL (KILX), launched 00:00Z, 6.1 hours before the alert went out and 143 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-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2012-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 502 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2012-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 346 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
502 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
972 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
346 m²/s²
0-3 km storm-relative helicity
388 m²/s²
Significant tornado parameter
0.8
Supercell composite
5.6

Open this sounding in Storm Lab

The text

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

682 
WWUS83 KIND 160607
SPSIND

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
207 AM EDT MON APR 16 2012

INZ051-052-060-160630-
CLAY-SULLIVAN-VIGO-
207 AM EDT MON APR 16 2012

...STRONG THUNDERSTORM ADVISORY FOR NORTHERN CLAY...NORTHERN SULLIVAN
AND SOUTHEASTERN VIGO COUNTIES UNTIL 230 AM EDT...

AT 203 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 7 MILES EAST OF HUTSONVILLE...OR 13 MILES
NORTHEAST OF ROBINSON...MOVING NORTHEAST AT 60 MPH.

WIND GUSTS UP TO 55 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH
HEAVY RAIN.

LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  FAIRBANKS...
  SHELBURN...
  HYMERA...
  FARMERSBURG...
  PIMENTO...
  RILEY...
  CORY...
  SALINE CITY...
  STAUNTON...
  CENTER POINT...
  SEELYVILLE...

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

&&

LAT...LON 3951 8725 3950 8701 3948 8701 3948 8697
      3900 8749 3911 8765 3912 8764 3913 8765
TIME...MOT...LOC 0607Z 221DEG 50KT 3914 8749

$$

RYAN

Nearby

Special Weather Statements in Indiana, 2012Every 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.