Alert archive / Ohio / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 41, NWS Wilmington, OH

May 30, 2009Adams County, Brown County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at May 30, 2009, 7:10 PM EDT for Adams County, Brown County, Ohio. 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 counties it named.

The facts

Issued: May 30, 2009, 7:10 PM EDT (23:10 UTC)
Expired: May 30, 2009, 8:00 PM EDT
In force: 50 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

Counties Adams County, OH, Brown County, OH

The radar

The Cincinnati radar (KILN), 60 km from the middle of the area, began a volume at 23:13 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 30, 4:49 PM EDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 61 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1948 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at May 30, 6:23 PM EDT, 47 minutes earlier.

Area forecast discussion, May 30, 6:23 PM EDT, 47 minutes before

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Hazardous weather outlook, May 30, 5:24 PM EDT, 1 hour 46 minutes before

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In the hours before

Local storm report, May 30, 5:18 PM EDT, 1 hour 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
518 PM EDT SAT MAY 30 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0455 PM     HAIL             7 E VANCEBURG           38.59N 83.19W
05/30/2009  E0.75 INCH       LEWIS              KY   LAW ENFORCEMENT

&&

MJP

Local storm report, May 30, 5:22 PM EDT, 1 hour 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
522 PM EDT SAT MAY 30 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0520 PM     HAIL             VANCEBURG               38.59N 83.32W
05/30/2009  E0.75 INCH       LEWIS              KY   LAW ENFORCEMENT

&&

NG

Special weather statement, May 30, 7:03 PM EDT, 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
703 PM EDT SAT MAY 30 2009

OHZ079-081-302345-
BROWN OH-ADAMS OH-
703 PM EDT SAT MAY 30 2009

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN ADAMS AND CENTRAL
BROWN COUNTIES THROUGH 745 PM EDT...

AT 702 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM LOCATED NEAR SARDINIA...MOVING EAST AT 20 MPH.

THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND WIND GUSTS TO
40 MPH.

SOME LOCATIONS THAT WILL BE AFFECTED BY THIS STORM INCLUDE...
SARDINIA...RUSSELLVILLE...FINCASTLE...EMERALD...WINCHESTER...CHERRY
FORK...SEAMAN...PEEBLES AND MAY HILL.

RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES
STRONGER...THEN A WARNING MAY BE NEEDED.

HATZOS

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 4:28 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	47 min
May 30, 5:15 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	45 min
May 30, 7:12 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	63 min
May 30, 7:45 PM EDT	Severe Thunderstorm Warning	ILN	Clermont, Hamilton	45 min
May 30, 7:57 PM EDT	Severe Thunderstorm Warning	ILN	Scioto	29 min
May 30, 7:58 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Greene, Montgomery, Warren	47 min
May 30, 7:59 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	46 min
May 30, 7:48 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Union, Wayne	57 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2009 Every severe thunderstorm warning in 2009

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.