Alert archive / Ohio / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 92, NWS Wilmington, OH

June 2, 20094 counties in Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 2, 2009, 6:18 PM EDT for 4 counties in Ohio. It was in force for 42 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: Jun 2, 2009, 6:18 PM EDT (22:18 UTC)
Expired: Jun 2, 2009, 7:00 PM EDT
In force: 42 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

Counties Clinton County, OH, Greene County, OH, Montgomery County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 25 km from the middle of the area, began a volume at 22:21 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 2, 3:18 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

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 Jun 2, 4:31 PM EDT, 1 hour 47 minutes earlier.

Area forecast discussion, Jun 2, 4:31 PM EDT, 1 hour 47 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
431 PM EDT TUE JUN 2 2009

.SYNOPSIS...
SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A SLOW MOVING COLD
FRONT WILL AFFECT THE REGION TONIGHT INTO THURSDAY. HIGH PRESSURE
AND DRIER AIR WILL FOLLOW THE FRONT FOR FRIDAY.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
FRONTAL BOUNDARY REMAINS ACROSS SOUTHERN OHIO. WITH CAPES AROUND
2000 J/KG...THUNDERSTORMS HAVE DEVELOPED...SOME SEVERE...AND
SEVERE THUNDERSTORM WATCH 323 IS IN EFFECT UNTIL 11 PM FOR ALL ILN
COUNTIES EXCEPT THOSE IN WEST CENTRAL OHIO. WIND FIELDS ARE
WEAK...SO EXPECT SEVERE THUNDERSTORMS TO WEAKEN AFTER SUNSET.
STILL...FRONTAL CONVERGENCE WILL INCREASE OVERNIGHT...SO NUMEROUS
TO WIDESPREAD SHOWERS AND THUNDERSTORMS WILL PERSIST. LOWS WILL BE
IN THE 60S SOUTH OF I-70...WITH 50S NORTH.

&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/...
SHOWERS AND THUNDERSTORMS WILL CONTINUE ON WEDNESDAY AS THE FRONT
SLIDES SLOWLY SOUTH. BEST CHANCE FOR SEVERE WEATHER WILL BE IN
SOUTHERN COUNTIES WHERE INSTABILITY WILL PERSIST.

CONDITIONS WILL BE DRIER BY WEDNESDAY NIGHT...THOUGH A CHANCE OF
SHOWERS WILL STICK AROUND IN MOST LOCATIONS...ESPECIALLY SOUTH OF
THE OHIO RIVER.

TEMPERATURES WILL TOP OUT IN THE 60S IN NORTHERN LOCATIONS...WITH
70S IN THE SOUTH. LOWS ON WEDNESDAY NIGHT WILL AVERAGE AROUND
50...ABOUT 5 DEGREES BELOW NORMAL.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
EMBEDDED MID LEVEL S/W LOOKS TO PROVIDE A LINGERING CHANCE OF POST
FRONTAL SHOWERS ON THURSDAY. IN WESTERLY MID LEVEL FLOW...SFC HIGH
PRESSURE BUILDS INTO THE GREAT LAKES PROVIDING DRY WX THURSDAY NIGHT
INTO FRIDAY.

NUMERICAL MODEL SOLNS SHOW A SHORTWAVE AND A SFC FRONT DROPPING INTO
THE OHIO VALLEY ON SATURDAY AND STALLING OUT PARALLEL TO MID/UPR LVL
FLOW ON SUNDAY. BEST DYNAMICS REMAIN NORTH TO THE NORTH...SO WL LIMIT
MENTION OF CHC POPS FOR SHOWERS/THUNDERSTORMS NORTH...WHILE
MAINTAINING A DRY FCST SOUTH. FOR SUNDAY WL MENTION LOW CHC POPS
NORTH AND AND ONLY SLIGHT CHC SOUTH.

IN SPLIT FLOW PATTERN NUMERICAL MODEL SOLN/S DIFFER ON THE PHASING
AND THE POSSIBLE DEVELOPMENT OF AN UPR TROF OVER THE GREAT LAKES BY
ERLY NEXT WEEK. HAVE TRENDED THE FCST SOLN TOWARD HPC GUID/ECMWF
SOLN...WITH A SIGNIFICANT SFC WAVE TRACKING THRU THE GREAT LAKES ON
MONDAY. WL THEREFORE INCREASE POPS ACRS THE ENTIRE FA SUNDAY NIGHT
WITH 40 POPS ACRS ENTIRE FA ON MONDAY. WL LINGER SILENT SLIGHT CHC
POPS FOR SHOWERS TUESDAY IN POST FRONTAL ENVIRONMENT.

&&

.AVIATION /20Z TUESDAY THROUGH SUNDAY/...
NORTH WINDS BEHIND THE FRONT HAVE WORKED TO THE I-70 CORRIDOR AND
CU HAS BEGUN TO POP SOUTH OF HERE SINCE CONVECTIVE TEMP AROUND 85
HAS BEEN MET. NOTHING ON RADAR AS YET TO SAY THAT STORMS COULD
REACH A CERTAIN TAF SITE...WILL AMEND IF POP UP STORMS FILL IN
OVER A PARTICULAR AREA THIS AFTERNOON.

BETTER CHANCE OF MORE NUMEROUS SHOWERS OCCURS AS THE FRONT DRIVES
SOUTH AND UNDERCUTS THE MOIST AIRMASS. WITH THE LOSS OF DAYTIME
HEATING...SOME OF THIS CU COULD GO SCATTERED EARLY IN THE
OVERNIGHT PERIOD AND POSSIBLY RADIATE FOR SOME GROUND FOG. ONCE
THE NORTHERLY WINDS KICK IN...TEMPS TAKE A NOSE DIVE AND VSBYS
SHOULD BE REDUCED IN MIST THROUGH TOMORROW REGARDLESS OF WHETHER
OR NOT CONVECTION IS ONGOING. UPSTREAM TODAY...THE NRN 1/4 OF OHIO
WAS UNDER IFR CIGS WITH MVFR VSBYS. THIS STANDS A GOOD CHANCE OF
BEING OVER OUR AREA TOMORROW.

OUTLOOK...MVFR CONDITIONS IN SHOWERS AND SOME IFR IN HEAVIER
THUNDERSTORMS IS POSSIBLE THROUGH THURSDAY.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...NONE.
KY...NONE.
IN...NONE.

&&

SYNOPSIS...CONIGLIO
NEAR TERM...CONIGLIO
SHORT TERM...CONIGLIO
LONG TERM...AR
AVIATION...FRANKS

Hazardous weather outlook, Jun 2, 3:35 PM EDT, 2 hours 43 minutes before

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In the hours before

Local storm report, Jun 2, 5:48 PM EDT, 30 minutes before

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Local storm report, Jun 2, 5:54 PM EDT, 24 minutes before

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Local storm report, Jun 2, 5:57 PM EDT, 21 minutes before

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Local storm report, Jun 2, 6:01 PM EDT, 17 minutes before

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Local storm report, Jun 2, 6:17 PM EDT, 1 minute before

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Local storm report, Jun 2, 6:18 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 10:27 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Licking	48 min
Jun 1, 11:16 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking	23 min
Jun 2, 3:15 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene, Montgomery	45 min
Jun 2, 3:49 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene, Montgomery	41 min
Jun 2, 3:51 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene, Madison	39 min
Jun 2, 3:56 PM EDT	Severe Thunderstorm Warning	ILN	Brown	49 min
Jun 2, 4:07 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield	53 min
Jun 2, 4:23 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Franklin, Madison, Pickaway	37 min
Jun 2, 4:24 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	36 min
Jun 2, 4:50 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Franklin, Madison, Pickaway	40 min
Jun 2, 4:53 PM EDT	Severe Thunderstorm Warning	ILN	Preble	37 min
Jun 2, 5:09 PM EDT	Severe Thunderstorm Warning	ILN	Licking	51 min
Jun 2, 5:17 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Highland	43 min
Jun 2, 5:20 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking, Pickaway	40 min
Jun 2, 5:26 PM EDT	Severe Thunderstorm Warning	ILN	Pike, Ross	49 min
Jun 2, 5:27 PM EDT	Tornado Warning	ILN	Montgomery, Preble	33 min
Jun 2, 5:36 PM EDT	Tornado Warning	ILN	Fairfield, Hocking, Pickaway	24 min
Jun 2, 5:47 PM EDT	Severe Thunderstorm Warning	ILN	Hocking, Ross	43 min
Jun 2, 5:52 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Montgomery, Preble, Warren	38 min
Jun 2, 5:56 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking	49 min
Jun 2, 6:17 PM EDT	Severe Thunderstorm Warning	ILN	Hocking	28 min
Jun 2, 6:57 PM EDT	Severe Thunderstorm Warning	ILN	Clinton	48 min
Jun 2, 7:04 PM EDT	Severe Thunderstorm Warning	ILN	Warren	41 min
Jun 2, 7:19 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Highland	41 min
Jun 2, 7:28 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Clinton, Warren	35 min
Jun 2, 7:54 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Ross	40 min
Jun 2, 2:44 PM EDT	Severe Thunderstorm Warning	ILN	Carroll, Gallatin	39 min
Jun 2, 3:23 PM EDT	Severe Thunderstorm Warning	ILN	Campbell, Grant, Kenton, Pendleton	30 min
Jun 2, 3:26 PM EDT	Severe Thunderstorm Warning	ILN	Boone, Campbell, Kenton	26 min
Jun 2, 3:33 PM EDT	Severe Thunderstorm Warning	ILN	Carroll, Gallatin, Owen	30 min
Jun 2, 4:24 PM EDT	Severe Thunderstorm Warning	ILN	Bracken, Mason, Robertson	51 min
Jun 2, 5:12 PM EDT	Severe Thunderstorm Warning	ILN	Lewis, Mason	48 min
Jun 2, 4:11 PM EDT	Severe Thunderstorm Warning	ILN	Wayne	49 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; radar from the NEXRAD Level II archive.