Alert archive / Ohio / Special Weather Statements in 2011

Special Weather Statement, NWS Northern Indiana

August 8, 2011Allen County, Ohio

NWS Northern Indiana issued this special weather statement at Aug 8, 2011, 12:30 AM EDT for Allen County, Ohio. It was in force for 30 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
Aug 8, 2011, 12:30 AM EDT (04:30 UTC)
Expired
Aug 8, 2011, 1:00 AM EDT
In force
30 min
Issued by
NWS Northern Indiana

County Allen County, OH

The radar

The Cincinnati radar (KILN), 148 km from the middle of the area, began a volume at 04:32 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 4.5 hours before the alert went out and 147 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, Cncnati-Daytn, OH at 00:00Z on 2011-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 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, Cncnati-Daytn, OH at 00:00Z on 2011-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 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
38 J/kg
Mixed-layer CIN
-220 J/kg
Mixed-layer LCL
1301 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
91 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.

838 
WWUS83 KIWX 080430
SPSIWX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1230 AM EDT MON AUG 8 2011

OHZ016-025-080500-
ALLEN OH-PUTNAM OH-
1230 AM EDT MON AUG 8 2011

...STRONG THUNDERSTORMS MOVING TOWARD ALLEN AND SOUTHERN PUTNAM
COUNTIES IN WEST CENTRAL OHIO...

AT 1225 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 7 MILES NORTHWEST OF ELIDA...OR NEAR DELPHOS...
MOVING SOUTHEAST AT 25 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 40 MPH...FREQUENT
CLOUD TO GROUND LIGHTNING AND BRIEF HEAVY DOWNPOURS ARE POSSIBLE WITH
THIS STORM.

LOCATIONS IN THE PATH OF THIS STORM INCLUDE...
  LIMA...
  FORT SHAWNEE AND BLUFFTON...
  ELIDA AND COLUMBUS GROVE...
  GOMER AND VAUGHNSVILLE...
  CONANT...
  CAIRO AND KEMP...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS 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 4064 8388 4064 8410 4066 8411 4065 8420
      4066 8422 4069 8422 4068 8426 4081 8438
      4082 8433 4098 8427 4093 8387 4065 8387
TIME...MOT...LOC 0430Z 310DEG 23KT 4085 8424

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 8:05 PM EDTSpecial Weather StatementIWXStarke40 min
Aug 7, 8:15 PM EDTSpecial Weather StatementIWXSaint Joseph30 min
Aug 7, 8:26 PM EDTSevere Thunderstorm WarningIWXElkhart, Saint Joseph34 min
Aug 7, 8:52 PM EDTRip Current StatementIWX5 hr
Aug 7, 9:02 PM EDTSpecial Weather StatementIWXElkhart43 min
Aug 7, 9:10 PM EDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Noble35 min
Aug 7, 9:39 PM EDTSpecial Weather StatementIWXWhitley51 min
Aug 8, 5:12 AM EDTRip Current StatementIWX16 hr
Aug 8, 6:51 PM EDTSpecial Weather StatementIWXWhite39 min
Aug 8, 7:04 PM EDTSevere Thunderstorm WarningIWXWhite41 min
Aug 8, 7:15 PM EDTTornado WarningIWXCass, White45 min
Aug 8, 7:59 PM EDTTornado WarningIWXCass, Miami46 min

Nearby

Special Weather Statements in Ohio, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.