Alert archive / Indiana / Special Weather Statements in 2010

Special Weather Statement, NWS Indianapolis, IN

July 22, 2010Clinton County, Indiana

NWS Indianapolis, IN issued this special weather statement at Jul 22, 2010, 3:25 PM EDT for Clinton County, Indiana. It was in force for 50 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
Jul 22, 2010, 3:25 PM EDT (19:25 UTC)
Expired
Jul 22, 2010, 4:15 PM EDT
In force
50 min
Issued by
NWS Indianapolis, IN

County Clinton County, IN

The radar

The Indianapolis radar (KIND), 74 km from the middle of the area, began a volume at 19:26 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

Davenport, (KDVN), launched 12:00Z, 7.4 hours before the alert went out and 353 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, Davenport, at 12:00Z on 2010-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1997 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, Davenport, at 12:00Z on 2010-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.193958Sfc1 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
1997 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
717 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.7
Supercell composite
5.3

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Indianapolis, IN wrote its last area forecast discussion before this special weather statement went out at Jul 22, 2:50 PM EDT, 35 minutes earlier.

Area forecast discussion, Jul 22, 2:50 PM EDT, 35 minutes before
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Hazardous weather outlook, Jul 22, 12:50 PM EDT, 2 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1250 PM EDT THU JUL 22 2010

INZ043-044-051>053-060>064-067>072-231700-
VERMILLION-PARKE-VIGO-CLAY-OWEN-SULLIVAN-GREENE-MONROE-BROWN-
BARTHOLOMEW-KNOX-DAVIESS-MARTIN-LAWRENCE-JACKSON-JENNINGS-
1250 PM EDT THU JUL 22 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PEAK APPARENT TEMPERATURES WILL BE FROM 100 TO 107 THIS AFTERNOON.
SUCH TEMPERATURES CAN CAUSE HEAT EXHAUSTION OR HEAT STROKE.

SEVERE THUNDERSTORMS WITH DAMAGING WINDS WILL BE POSSIBLE THIS
AFTERNOON AND TONIGHT. DEADLY LIGHTNING IS A THREAT WITH ANY
THUNDERSTORM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SEVERE STORMS WILL BE POSSIBLE ON SATURDAY AND SATURDAY NIGHT.
THE MAIN THREATS FROM THESE STORMS WILL BE DAMAGING WINDS AND
HEAVY RAIN RESULTING IN FLASH FLOODING. LIGHTNING IS ALSO A THREAT
FROM ANY THUNDERSTORM.

RIVER FLOODING MAY ALSO BECOME A CONCERN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE FROM THIS AFTERNOON INTO TONIGHT.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

INZ021-028>031-035>042-045>049-054>057-065-231700-
CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY-
BOONE-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-PUTNAM-HENDRICKS-
MARION-HANCOCK-HENRY-MORGAN-JOHNSON-SHELBY-RUSH-DECATUR-
1250 PM EDT THU JUL 22 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORMS WITH DAMAGING WINDS WILL BE POSSIBLE THIS
AFTERNOON AND TONIGHT. DEADLY LIGHTNING IS A THREAT WITH ANY
THUNDERSTORM.

APPARENT TEMPERATURES WILL APPROACH 100 IN SOME AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

SEVERE STORMS WILL BE POSSIBLE ON SATURDAY AND SATURDAY NIGHT.
THE MAIN THREATS FROM THESE STORMS WILL BE DAMAGING WINDS AND
HEAVY RAIN RESULTING IN FLASH FLOODING. LIGHTNING IS ALSO A THREAT
FROM ANY THUNDERSTORM.

RIVER FLOODING MAY ALSO BECOME A CONCERN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE FROM THIS AFTERNOON INTO TONIGHT.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

JK

In the hours before

Special weather statement, Jul 22, 3:25 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 9:25 PM EDTAreal Flood AdvisoryINDGreene, Sullivan3 hr
Jul 22, 9:34 AM EDTHeat AdvisoryINDBartholomew, Brown, Clay, Daviess, Greene, Jackson and 11 more9 hr
Jul 22, 3:32 PM EDTHeat AdvisoryINDBartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more27 hr
Jul 22, 4:19 PM EDTSpecial Weather StatementINDBoone56 min
Jul 22, 4:23 PM EDTSpecial Weather StatementINDDecatur67 min
Jul 22, 5:11 PM EDTSpecial Weather StatementINDRush, Shelby64 min
Jul 22, 5:26 PM EDTSpecial Weather StatementINDJennings49 min

Nearby

Special Weather Statements in Indiana, 2010Every special weather statement in 2010

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.