Alert archive / Indiana / Special Weather Statements in 2012

Special Weather Statement, NWS Northern Indiana

October 14, 2012DeKalb County, Indiana

NWS Northern Indiana issued this special weather statement at Oct 14, 2012, 3:21 PM EDT for DeKalb County, Indiana. It was in force for 24 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
Oct 14, 2012, 3:21 PM EDT (19:21 UTC)
Expired
Oct 14, 2012, 3:45 PM EDT
In force
24 min
Issued by
NWS Northern Indiana

County DeKalb County, IN

The radar

The Northern Indiana radar (KIWX), 62 km from the middle of the area, began a volume at 19:21 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

Detroit, MI (KDTX), launched 12:00Z, 7.4 hours before the alert went out and 198 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, Detroit, MI at 12:00Z on 2012-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 50 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2012-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 255 square meters per square second.19395878Sfc1 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
50 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
555 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
255 m²/s²
0-3 km storm-relative helicity
311 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.

342 
WWUS83 KIWX 141921
SPSIWX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
321 PM EDT SUN OCT 14 2012

INZ008-009-017-018-OHZ001-004-141945-
ALLEN IN-DE KALB IN-DEFIANCE OH-NOBLE IN-WHITLEY IN-WILLIAMS OH-
321 PM EDT SUN OCT 14 2012

...THUNDERSTORM MOVING TOWARD SOUTHWESTERN WILLIAMS... NORTHWESTERN 
DEFIANCE...NORTHWESTERN ALLEN...SOUTHEASTERN DE KALB...AND EXTREME 
SOUTHEASTERN NOBLE COUNTIES...

AT 315 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
THUNDERSTORM 10 MILES SOUTHWEST OF HUNTERTOWN...OR 9 MILES WEST OF 
FORT WAYNE...MOVING NORTHEAST AT 50 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS UP TO 50 MPH...OCCASIONAL CLOUD
TO GROUND LIGHTNING AND BRIEF HEAVY DOWNPOURS ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IN THE PATH OF THIS STORM INCLUDE...
  GARRETT...
  AUBURN...
  HUNTERTOWN...
  GRABILL...
  LAOTTO...
  LEO-CEDARVILLE...SAINT JOHNS AND BUTLER CENTER...

THIS INCLUDES INTERSTATE 469 BETWEEN MILE MARKERS 0 AND 9.

THIS INCLUDES INTERSTATE 69 IN INDIANA BETWEEN MILE MARKERS 304 AND
330.

GUSTY WINDS MAY CAUSE SMALL BRANCHES TO BE BLOWN DOWN...AND LOOSE
OBJECTS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS
TREES. 

SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

LAT...LON 4105 8523 4119 8538 4153 8484 4153 8481
      4155 8481 4156 8479 4139 8461
TIME...MOT...LOC 1920Z 232DEG 45KT 4118 8520

$$

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 14, 3:33 PM EDTSpecial Weather StatementIWXKosciusko27 min
Oct 14, 4:00 PM EDTSpecial Weather StatementIWXNoble30 min
Oct 14, 4:31 PM EDTSpecial Weather StatementIWXSteuben29 min
Oct 14, 4:42 PM EDTSpecial Weather StatementIWXLaPorte48 min
Oct 14, 4:59 PM EDTSpecial Marine WarningIWX91 min
Oct 14, 5:04 PM EDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph41 min
Oct 14, 5:00 PM EDTSpecial Weather StatementIWXHillsdale30 min

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.