Alert archive / Indiana / Special Weather Statements in 2011

Special Weather Statement, NWS Indianapolis, IN

August 13, 2011Boone County, Hendricks County, Putnam County, Indiana

NWS Indianapolis, IN issued this special weather statement at Aug 13, 2011, 8:21 PM EDT for Boone County, Hendricks County, Putnam County, Indiana. It was in force for 39 min. 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
Aug 13, 2011, 8:21 PM EDT (00:21 UTC)
Expired
Aug 13, 2011, 9:00 PM EDT
In force
39 min
Issued by
NWS Indianapolis, IN

Counties Boone County, IN, Hendricks County, IN, Putnam County, IN

The radar

The Indianapolis radar (KIND), 29 km from the middle of the area, began a volume at 00:21 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.

What was reported inside it

TimeReportWhereRemark
Aug 13, 8:35 PM EDTHAIL 0.5Lizton, IN

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, 0.4 hours before the alert went out and 176 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 2011-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.1000850700500300200100-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2011-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -81 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
6645 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-81 m²/s²
0-3 km storm-relative helicity
-22 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.

597 
WWUS83 KIND 140021
SPSIND

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
821 PM EDT SAT AUG 13 2011

INZ036-037-045-046-054-140100-
BOONE-HENDRICKS-MONTGOMERY-MORGAN-PUTNAM-
821 PM EDT SAT AUG 13 2011

...STRONG THUNDERSTORM ADVISORY FOR BOONE...HENDRICKS...EASTERN
MONTGOMERY...NORTHWESTERN MORGAN AND PUTNAM COUNTIES UNTIL 900 PM
EDT...

AT 817 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES EAST OF
CRAWFORDSVILLE TO 9 MILES SOUTHWEST OF GREENCASTLE...AND MOVING EAST
AT 50 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THESE STORMS.

THESE STORMS WILL BE NEAR...
THORNTOWN...BELLE UNION...NORTH SALEM...JAMESTOWN...COATESVILLE AND
ADVANCE AROUND 830 PM EDT...
LITTLE POINT...EMINENCE...ULEN...STILESVILLE...LIZTON...LEBANON AND
AMO AROUND 835 PM EDT...
PITTSBORO AROUND 840 PM EDT...

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS... FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

WHEN THUNDER ROARS...GO INDOORS!

&&

LAT...LON 4016 8625 3949 8648 3947 8671 3948 8701
      4014 8681
TIME...MOT...LOC 0021Z 267DEG 43KT 4005 8671 3954 8686

$$

PUMA

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 13, 8:39 PM EDTSevere Thunderstorm WarningINDBoone, Hamilton, Hendricks, Marion, Morgan, Putnam66 min
Aug 13, 9:04 PM EDTSevere Thunderstorm WarningINDDelaware, Henry, Madison56 min
Aug 13, 10:31 PM EDTSpecial Weather StatementINDMonroe44 min
Aug 13, 10:38 PM EDTSevere Thunderstorm WarningINDBrown, Monroe, Owen52 min
Aug 13, 10:45 PM EDTSevere Thunderstorm WarningINDGreene, Monroe30 min
Aug 13, 11:12 PM EDTSevere Thunderstorm WarningINDBrown, Greene, Lawrence, Monroe33 min
Aug 13, 11:48 PM EDTSpecial Weather StatementINDJackson, Lawrence42 min
Aug 14, 12:26 AM EDTSpecial Weather StatementINDJennings49 min

Nearby

Special Weather Statements in Indiana, 2011Every special weather statement 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.