Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 124, NWS Wilmington, OH

June 29, 20125 counties in Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 29, 2012, 4:52 PM EDT for 5 counties in Ohio. It was in force for 53 min. 29 reports 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: Jun 29, 2012, 4:52 PM EDT (20:52 UTC)
Expired: Jun 29, 2012, 5:45 PM EDT
In force: 53 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

Counties Delaware County, OH, Franklin County, OH, Licking County, OH, Madison County, OH, Union County, OH

The radar

The Cincinnati radar (KILN), 127 km from the middle of the area, began a volume at 20:54 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

Time	Report	Where	Remark
Jun 29, 4:52 PM EDT	TSTM WND GST 80	Dublin, OH	TREES DOWN.
Jun 29, 4:53 PM EDT	TSTM WND GST 82	Kosu Osu Airport, OH
Jun 29, 4:54 PM EDT	TSTM WND DMG	Worthington, OH	SEVERAL TREES DOWN
Jun 29, 4:57 PM EDT	TSTM WND DMG	5 Ne Upper Arlington, OH	NUMEROUS TREES DOWNED ON STAFFORD AND CLEARVIEW STREETS.
Jun 29, 4:57 PM EDT	TSTM WND DMG	5 Wsw Westerville, OH	NUMEROUS TREES DOWNED ON NORTHLAND AND PROPRIETORS ROADS.
Jun 29, 4:59 PM EDT	TSTM WND DMG	2 Sw Westerville, OH	NUMEROUS LARGE LIMBS DOWN AND SHINGLES RIPPED OFF HOMES NEAR I-270 AND CLEVELAND AVE. TIME ESTIMATED FROM RADAR.
Jun 29, 4:59 PM EDT	TSTM WND DMG	Worthington, OH	TREES DOWN. VIA BROADCAST MEDIA
Jun 29, 5:00 PM EDT	TSTM WND DMG	3 Nnw Downtown Columbus, OH	TREES DOWN ON OSU CAMPUS
Jun 29, 5:01 PM EDT	TSTM WND DMG	Columbus, OH	ONE FOOT DIAMETER TREE SNAPPED
Jun 29, 5:02 PM EDT	TSTM WND GST 71	3 E Huber Ridge, OH
Jun 29, 5:03 PM EDT	TSTM WND DMG	Columbus, OH	LARGE TREES DOWN.
Jun 29, 5:05 PM EDT	TSTM WND DMG	2 N Columbus, OH	TREES DOWN ON THE OHIO STATE UNIVERSITY CAMPUS.
Jun 29, 5:05 PM EDT	TSTM WND DMG	New Albany, OH	LARGE TREES DOWN.
Jun 29, 5:05 PM EDT	TSTM WND GST 70	1 E Westerville, OH
Jun 29, 5:06 PM EDT	TSTM WND GST 72	Kcmh Port Columbus Apt, OH	AT PORT COLUMBUS INTERNATIONAL AIRPORT
Jun 29, 5:07 PM EDT	TSTM WND DMG	2 Sw Johnstown, OH	NUMEROUS TREES DOWNED NEAR DUNCAN PLAINS ROAD.
Jun 29, 5:07 PM EDT	TSTM WND GST 72	2 Nne Gahanna, OH
Jun 29, 5:07 PM EDT	TSTM WND GST 83	3 Nne Gahanna, OH	NUMEROUS TREES DOWN
Jun 29, 5:08 PM EDT	TSTM WND DMG	3 Nne Gahanna, OH	* 1 INJ * AT LEAST A DOZEN POWER POLES SNAPPED ALONG HAMILTON RD. AT LEAST ONE INJURY FROM POLE FALLING ON CAR.
Jun 29, 5:08 PM EDT	TSTM WND DMG	Johnstown, OH	NUMEROUS TREES DOWNED IN JOHNSTOWN. TWO ROOVES WERE REMOVED FROM HOUSES.
Jun 29, 5:10 PM EDT	TSTM WND DMG	Columbus, OH	TREES DOWN, 2 STRUCTURES HIT BY TREES
Jun 29, 5:10 PM EDT	TSTM WND DMG	Upper Arlington, OH	WIDESPREAD TREE DAMAGE HERE AND IN CLINTONVILLE...AND WORTHINGTON. MOST OF FRANKLIN COUNTY.
Jun 29, 5:10 PM EDT	TSTM WND GST 75	1 W Dublin, OH	POLES SNAPPED AND WIRES DOWN
Jun 29, 5:15 PM EDT	TSTM WND DMG	Westerville, OH	LARGE TREES AND LIMBS DOWN.
Jun 29, 5:15 PM EDT	TSTM WND GST 66	2 Se Johnstown, OH
Jun 29, 5:15 PM EDT	TSTM WND GST 66	Newark, OH
Jun 29, 5:22 PM EDT	TSTM WND DMG	Granville, OH	TREES DOWN
Jun 29, 5:26 PM EDT	TSTM WND GST 70	Newark, OH
Jun 29, 5:30 PM EDT	HAIL 0.88	Newark, OH

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 28 storm reports to this severe thunderstorm warning; the first came 0 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

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 29, 3:02 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.9 hours before the alert went out and 125 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: 3674 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 979 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: -13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.4

Open this sounding in Storm Lab

The text

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

806 
WUUS51 KILN 292052
SVRILN
OHC041-049-089-097-159-292145-
/O.NEW.KILN.SV.W.0124.120629T2052Z-120629T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
452 PM EDT FRI JUN 29 2012

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DELAWARE COUNTY IN CENTRAL OHIO...
  NORTHERN FRANKLIN COUNTY IN CENTRAL OHIO...
  LICKING COUNTY IN CENTRAL OHIO...
  NORTHEASTERN MADISON COUNTY IN CENTRAL OHIO...
  SOUTHEASTERN UNION COUNTY IN CENTRAL OHIO...

* UNTIL 545 PM EDT.

* AT 450 PM EDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
  CAPABLE OF PRODUCING GOLF BALL SIZE HAIL AND VIOLENT STRAIGHT LINE
  WINDS TO 80 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM LEONARDSBURG TO LAKE DARBY...MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  UPPER ARLINGTON...
  WORTHINGTON...
  SUNBURY...
  WESTERVILLE...
  MINERVA PARK...
  COLUMBUS...
  BEXLEY...
  GAHANNA...

IN ADDITION...NEW ROME...LINCOLN VILLAGE...ALUM CREEK STATE PARK...
RIVERLEA...MARBLE CLIFF...VALLEYVIEW...GRANDVIEW HEIGHTS AND OLIVE
GREEN ARE NEAR THE PATH OF THESE SEVERE THUNDERSTORMS.

THIS INCLUDES THE FOLLOWING INTERSTATES...
I-70 BETWEEN MILE MARKERS 83 AND 142...
I-71 BETWEEN MILE MARKERS 106 AND 139...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS! IF YOU ARE NEAR THEIR PATH...YOU SHOULD
PREPARE FOR LARGE DESTRUCTIVE HAIL AND VIOLENT STRAIGHT LINE WINDS.

THESE STORMS HAVE THE POTENTIAL TO CAUSE SERIOUS INJURY AND
SIGNIFICANT DAMAGE TO PROPERTY. FOR YOUR PROTECTION...TAKE COVER IN
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR SOUTHEASTERN INDIANA AND NORTHEASTERN KENTUCKY AND
SOUTHWESTERN OHIO.

&&

LAT...LON 3995 8219 3994 8223 3991 8224 3994 8271
      3994 8326 4001 8341 4025 8337 4044 8315
      4042 8293 4036 8292 4035 8275 4028 8274
      4027 8252 4027 8248 4025 8247 4024 8218
TIME...MOT...LOC 2052Z 273DEG 52KT 4036 8293 3994 8318

$$

HATZOS

3 follow-up statements

757 
WWUS51 KILN 292111
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
511 PM EDT FRI JUN 29 2012

OHC097-159-292121-
/O.CAN.KILN.SV.W.0124.000000T0000Z-120629T2145Z/
MADISON OH-UNION OH-
511 PM EDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN UNION AND
NORTHEASTERN MADISON COUNTIES IN CENTRAL OHIO HAS BEEN CANCELLED...

THE STORMS HAVE MOVED EAST INTO FRANKLIN AND DELAWARE COUNTIES. 
ANOTHER SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN 
MADISON COUNTY.

PLEASE REPORT PREVIOUS WIND DAMAGE OR HAIL TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...877-633-6772.

LAT...LON 3995 8219 3995 8223 3991 8224 3993 8246
      3994 8323 3995 8324 3996 8324 4036 8292
      4035 8275 4028 8274 4027 8248 4025 8247
      4024 8218
TIME...MOT...LOC 2111Z 273DEG 52KT 4034 8257 3992 8282

$$

OHC041-049-089-292145-
/O.CON.KILN.SV.W.0124.000000T0000Z-120629T2145Z/
DELAWARE OH-FRANKLIN OH-LICKING OH-
511 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR LICKING...NORTHERN FRANKLIN AND EASTERN DELAWARE COUNTIES IN
CENTRAL OHIO...

AT 508 PM EDT...RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL SIZE HAIL AND VIOLENT
STRAIGHT LINE WINDS TO 80 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM HARTFORD TO WHITEHALL...MOVING EAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
PATASKALA...BEECHWOOD TRAILS...UTICA...GRANVILLE SOUTH...GRANVILLE...
HEBRON...NEWARK...HEATH...BUCKEYE LAKE...HARBOR HILLS AND HANOVER.

IN ADDITION...STATE ROUTE 310 AT STATE ROUTE 161...ALEXANDRIA...US
ROUTE 62 AT STATE ROUTE 661...ETNA...KIRKERSVILLE...ST. LOUISVILLE...
FALLSBURG AND BROWNSVILLE ARE NEAR THE PATH OF THESE STORMS.

THIS INCLUDES THE FOLLOWING INTERSTATES...
I-70 BETWEEN MILE MARKERS 88 AND 142...
I-71 BETWEEN MILE MARKERS 106 AND 139...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS! IF YOU ARE NEAR THEIR PATH...YOU SHOULD
PREPARE FOR LARGE DESTRUCTIVE HAIL AND VIOLENT STRAIGHT LINE WINDS.

THESE STORMS HAVE THE POTENTIAL TO CAUSE SERIOUS INJURY AND
SIGNIFICANT DAMAGE TO PROPERTY. FOR YOUR PROTECTION...TAKE COVER IN
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3995 8219 3995 8223 3991 8224 3993 8246
      3994 8323 3995 8324 3996 8324 4036 8292
      4035 8275 4028 8274 4027 8248 4025 8247
      4024 8218
TIME...MOT...LOC 2111Z 273DEG 52KT 4034 8257 3992 8282

$$

HATZOS

005 
WWUS51 KILN 292127
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
527 PM EDT FRI JUN 29 2012

OHC041-049-292136-
/O.CAN.KILN.SV.W.0124.000000T0000Z-120629T2145Z/
DELAWARE OH-FRANKLIN OH-
527 PM EDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN FRANKLIN AND EASTERN
DELAWARE COUNTIES IN CENTRAL OHIO HAS BEEN CANCELLED...

THE STORMS HAVE MOVED EAST OF DELAWARE COUNTY AND NORTHERN FRANKLIN 
COUNTY. ANOTHER SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR 
SOUTHERN FRANKLIN COUNTY.

PLEASE REPORT PREVIOUS WIND DAMAGE OR HAIL TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...877-633-6772.

LAT...LON 3995 8219 3995 8223 3991 8224 3993 8246
      3994 8278 4028 8274 4027 8248 4025 8247
      4024 8218
TIME...MOT...LOC 2126Z 275DEG 53KT 4019 8235 3996 8250

$$

OHC089-292145-
/O.CON.KILN.SV.W.0124.000000T0000Z-120629T2145Z/
LICKING OH-
527 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR LICKING COUNTY...

AT 522 PM EDT...RADAR CONTINUED TO INDICATE A LINE OF SEVERE 
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND VIOLENT 
STRAIGHT LINE WINDS TO 80 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ST. LOUISVILLE TO KIRKERSVILLE...MOVING EAST AT 60 
MPH.

LOCATIONS IMPACTED INCLUDE...
HEATH...BUCKEYE LAKE...HARBOR HILLS AND HANOVER.

IN ADDITION...FALLSBURG...BROWNSVILLE AND GRATIOT ARE NEAR THE PATH
OF THESE STORMS.

THIS INCLUDES THE FOLLOWING INTERSTATE...
I-70 BETWEEN MILE MARKERS 114 AND 142...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS! IF YOU ARE NEAR THEIR PATH...YOU SHOULD 
PREPARE FOR LARGE HAIL AND VIOLENT STRAIGHT LINE WINDS.

THESE STORMS HAVE THE POTENTIAL TO CAUSE SERIOUS INJURY AND
SIGNIFICANT DAMAGE TO PROPERTY. FOR YOUR PROTECTION...TAKE COVER IN
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3995 8219 3995 8223 3991 8224 3993 8246
      3994 8278 4028 8274 4027 8248 4025 8247
      4024 8218
TIME...MOT...LOC 2126Z 275DEG 53KT 4019 8235 3996 8250

$$

HATZOS

032 
WWUS51 KILN 292144
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
544 PM EDT FRI JUN 29 2012

OHC089-292154-
/O.EXP.KILN.SV.W.0124.000000T0000Z-120629T2145Z/
LICKING OH-
544 PM EDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR LICKING COUNTY WILL EXPIRE AT
545 PM EDT...

THE THUNDERSTORMS HAVE MOVED EAST OF LICKING COUNTY. THEREFORE...THE 
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.

PLEASE REPORT PREVIOUS WIND DAMAGE OR HAIL TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...877-633-6772.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM.

LAT...LON 3995 8219 3995 8223 3991 8224 3993 8246
      3994 8278 4028 8274 4027 8248 4025 8247
      4024 8218
TIME...MOT...LOC 2144Z 275DEG 53KT 4016 8200 3993 8216

$$

HATZOS

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 29, 3:37 PM EDT, 1 hour 15 minutes earlier.

Area forecast discussion, Jun 29, 3:37 PM EDT, 1 hour 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
337 PM EDT FRI JUN 29 2012

.SYNOPSIS...
AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BECOME SUPPRESSED ACROSS
THE TENNESSEE VALLEY THROUGH THE WEEKEND. THIS WILL ALLOW A WEAK
FRONTAL BOUNDARY TO SETTLE ACROSS THE REGION. THIS BOUNDARY WILL
COMBINE WITH WEAK DISTURBANCES IN A NORTHWEST FLOW ALOFT TO KEEP
A THREAT OF SHOWERS AND THUNDERSTORMS. HOT AND HUMID WEATHER IS
EXPECTED TO CONTINUE THROUGH THE WEEKEND.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
MAIN FORECAST DILEMMA THIS AFTERNOON AND EVENING WILL BE THE
MCS/DAMAGING WIND EVENT THAT IS ABOUT TO UNFOLD ACRS OUR AREA.
SEVERE THUNDERSTORM WATCH NUMBER 436 HAS BEEN ISSUED FOR MOST OF
THE AREA. THUNDERSTORM COMPLEX OVER NW OHIO AND NRN INDIANA IS
EXPECTED TO RACE SE ACRS THE REGION THIS AFTERNOON AND EARLY
EVENING PER HRRR MODEL. THESE STORMS WILL FEED INTO A VERY
UNSTABLE AIRMASS WITH 18Z KILN SOUNDING SHOWING MLCAPE VALUES
APPROACHING 3500 J/KG. MODERATE SHEAR IS ALSO OVER THE AREA. FOR
DAMAGING WIND POTENTIAL...DCAPE IS APPROACHING 2000 J/KG AND DELTA
THETA E IS OVER 40 C. NONETHELESS...FORECAST AREA MAY BE DEALING
WITH A DERECHO WHICH WILL PRODUCE HIGH END WINDS ACROSS THE
REGION WITH LOCAL HAIL STONES SIZES POTENTIALLY GREATER THAN 2
INCHES. HEAVY RAIN WILL BE POSSIBLE...BUT WITH FAST MOVING
STORMS...FLOODING SHOULD BE MINIMAL.

MODELS INDICATE THAT THE MCS SHOULD BE EXITING THE SE CWFA BY
EARLY EVENING. IN THE WAKE OF THIS FEATURE...THERE WILL LIKELY BE
A LULL IN CONVECTION DUE TO THE AREA BEING WORKED OVER. HAVE KEPT
THE REMAINDER OF THE FORECAST DRY OVERNIGHT BEHIND THE MCS.

EXCESSIVE HEAT WARNING WILL CONTINUE UNTIL 8 PM...ALBEIT ONCE RAIN
COOLED AIR HITS...HEAT INDEX VALUES WILL DROP. WILL DECIDE HOW TO
HANDLE THIS ONCE CONVECTION MOVES ACRS THE AREA. OVERNIGHT LOWS
WILL BE IN THE LOWER TO MID 70S.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY NIGHT/...
UPR LVL PATTERN WILL NOT CHANGE THAT MUCH OVER THE WEEKEND AS
CENTER OF UPR LVL HIGH REMAINS NEAR OR JUST SOUTH OF THE TN RIVER
VALLEY. MEANWHILE...A WEAK FRONTAL BOUNDARY WILL OSCILLATE ACRS
THE AREA. MODELS CONTINUE TO DEPICT EMBEDDED DISTURBANCES ROTATING
SE THROUGH THIS FLOW FROM TIME TO TIME. TIMING OF DISTURBANCES
WILL BE PROBLEMATIC AT BEST ATTM. HAVE KEPT CHANCE POPS IN THE
FORECAST...FAVORING THE DIURNAL CYCLE. HEAT AND HUMIDITY WILL
CONTINUE WITH SOME SLIGHT COOLING EXPECTED ON SUNDAY. HAVE
EXTENDED THE EXCESSIVE HEAT WARNING FOR MONTGOMERY COUNTY AND
PARTS OF SE INDIANA AND SRN OHIO AS VALUES WILL BE UP TO 107
(MONTGOMERY WILL BE UP TO 104 BUT THEY HAVE SPECIAL HEAT HEADLINE
CRITERIA). HEAT ADVISORY WILL BE IN EFFECT FOR THE REMAINDER OF
THE REGION. HEAT HEADLINES MAY BE NEEDED AGAIN SUNDAY FOR SRN
SECTIONS BUT WILL JUST MENTION THIS IN THE HWO ATTM.

HIGHS WILL RANGE FROM THE MID 90S TO LOWER 100S ON SATURDAY AND
LOWER 90S TO NEAR 100 ON SUNDAY.

&&

.LONG TERM /MONDAY THROUGH FRIDAY/...
THE AREA WILL CONTINUE UNDER NORTHWESTERLY FLOW ALOFT ON THE
NORTHERN EDGE OF UPPER LEVEL RIDGING THROUGH MID WEEK. INTERMITTENT
DISTURBANCES EMBEDDED IN THE FLOW WILL BRING CHANCES FOR CONVECTION
THROUGHOUT THE TIME PERIOD. HAVE ONLY FORECAST LOW END
MENTIONABLE POPS DURING THE DAYTIME HOURS FOR THE EXTENDED PERIOD
DUE TO TIMING UNCERTAINTIES. THESE POPS COULD BE INCREASED FAIRLY
QUICKLY AS EACH PARTICULAR WAVE BECOMES MORE APPARENT.

TEMPERATURES ALOFT WILL ONLY COOL BY A DEGREE OR TWO AS THE WEEK
PROGRESSES. HAVE THEREFORE KEPT FORECAST HIGH TEMPERATURES WELL
ABOVE NORMAL...GENERALLY IN THE MIDDLE 90S. OVERNIGHT LOWS WILL
LIKELY REMAIN IN THE 70S THROUGHOUT THE EXTENDED PERIOD.

&&

.AVIATION /20Z FRIDAY THROUGH WEDNESDAY/...
THUNDERSTORM COMPLEX HAS DEVELOPED INTO NW INDIANA ALONG AND NORTH
OF A QUASI-STATIONARY SFC FRONTAL BOUNDARY THAT IS ORIENTED W-E
THRU THE I-70 CORRIDOR ACRS OHIO. UNCERTAINTY EXISTS REGARDING
EXACT STORM EVOLUTION THIS AFTN. LEANING TOWARD LATEST HRRR
SOLN WHICH HAS BEEN POINTING TO THIS DEVELOPMENT FOR SEVERAL RUNS...
EXPECT THIS CONVECTION TO DROP ESE AND BUILD S INTO VERY UNSTABLE
AIRMASS WHERE BLYR CAPES ARE EXPECTED TO BE AROUND 4000 J/KG. HAVE
A PERIOD OF VCTS THIS AFTN AT ALL TAF SITES AND HAVE A TEMPO GROUP
FOR THUNDERSTORMS WITH GUSTS TO 35KTS AT KDAY WHERE BEST THREAT EXISTS.

EXPECT CLOUDS TO GIVE WAY TO CLEARING WITH THE PASSAGE OF THIS SYSTEM
THIS EVENING. IN HUMID AIRMASS...FOG WILL BE POSSIBLE OVERNIGHT AND
HAVE A MENTION OF MVFR VSBY REDUCTION AT KCVG/KLUK AND KILN.

ON SATURDAY...BEST FOCUS FOR CONVECTION LOOKS TO BE NORTH OF THE
TAF SITES. THEREFORE...HAVE LEFT THE TAFS DRY WITH VFR CONDITIONS
EXPECTED AT THIS TIME.

OUTLOOK...NO SIGNIFICANT WEATHER EXPECTED.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...EXCESSIVE HEAT WARNING UNTIL 8 PM EDT THIS EVENING FOR OHZ026-
     034-035-042>046-051>056-060-062>065-070>074-080-082.
     HEAT ADVISORY FROM 8 PM THIS EVENING TO 8 PM EDT SATURDAY FOR
     OHZ026-034-035-042>046-051>056-060-062>065-070>074-080-
     082.
     EXCESSIVE HEAT WARNING UNTIL 8 PM EDT SATURDAY FOR OHZ061-
     077>079-081-088.
KY...EXCESSIVE HEAT WARNING UNTIL 8 PM EDT SATURDAY FOR KYZ089>100.
IN...EXCESSIVE HEAT WARNING UNTIL 8 PM EDT THIS EVENING FOR INZ050-
     058-059-066.
     HEAT ADVISORY FROM 8 PM THIS EVENING TO 8 PM EDT SATURDAY FOR
     INZ050-058-059-066.
     EXCESSIVE HEAT WARNING UNTIL 8 PM EDT SATURDAY FOR INZ073>075-
     080.

&&

SYNOPSIS...HICKMAN
NEAR TERM...HICKMAN
SHORT TERM...HICKMAN
LONG TERM...LATTO
AVIATION...AR

Hazardous weather outlook, Jun 29, 3:39 PM EDT, 1 hour 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
339 PM EDT FRI JUN 29 2012

INZ050-058-059-066-OHZ026-034-035-042>046-051>056-060-062>065-
070>074-080-082-301945-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-HARDIN-MERCER-AUGLAIZE-DARKE-
SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON-
FRANKLIN OH-LICKING-PREBLE-GREENE-FAYETTE OH-PICKAWAY-FAIRFIELD-
BUTLER-WARREN-CLINTON-ROSS-HOCKING-HIGHLAND-PIKE-
339 PM EDT FRI JUN 29 2012

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 8 PM EDT
SATURDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA...SOUTHEAST INDIANA...CENTRAL OHIO...MIAMI VALLEY OF
OHIO...SOUTH CENTRAL OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WARNING.
   HEAT ADVISORY.

A THUNDERSTORM COMPLEX WILL RACE SOUTHEAST ACROSS THE REGION THIS
AFTERNOON AND EARLY EVENING. DAMAGING WINDS AND LARGE HAIL WILL BE
THE PRIMARY SEVERE WEATHER THREATS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   HEAT ADVISORY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD ACTIVATE AND REPORT SIGNIFICANT WEATHER CONDITIONS.

INZ073>075-080-KYZ089>100-OHZ061-077>079-081-088-301945-
RIPLEY-DEARBORN-OHIO-SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-
CAMPBELL-OWEN-GRANT-PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-
MONTGOMERY-HAMILTON-CLERMONT-BROWN-ADAMS-SCIOTO-
339 PM EDT FRI JUN 29 2012

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM EDT SATURDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST INDIANA...NORTHEAST
KENTUCKY...NORTHERN KENTUCKY...MIAMI VALLEY OF OHIO...SOUTH CENTRAL
OHIO AND SOUTHWEST OHIO.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WARNING.

A THUNDERSTORM COMPLEX WILL RACE SOUTHEAST ACROSS THE REGION THIS
AFTERNOON AND EARLY EVENING. DAMAGING WINDS AND LARGE HAIL WILL BE
THE PRIMARY SEVERE WEATHER THREATS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WARNING.

HEAT AND HUMIDITY WILL CONTINUE ON SUNDAY. HEAT HEADLINES MAY BE
NEEDED.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD ACTIVATE AND REPORT SIGNIFICANT WEATHER CONDITIONS.

In the hours before

Local storm report, Jun 29, 4:44 PM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
444 PM EDT FRI JUN 29 2012

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

0440 PM     TSTM WND DMG     XENIA                   39.69N 83.94W
06/29/2012                   GREENE             OH   TRAINED SPOTTER

            LARGE TREE BRANCHES DOWN.

&&

JDR

Local storm report, Jun 29, 4:45 PM EDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
445 PM EDT FRI JUN 29 2012

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

0444 PM     TSTM WND DMG     MARYSVILLE              40.24N 83.37W
06/29/2012                   UNION              OH   TRAINED SPOTTER

            LARGE TREE LIMBS DOWN

&&

JDR

Local storm report, Jun 29, 4:46 PM EDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
446 PM EDT FRI JUN 29 2012

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

0425 AM     TSTM WND DMG     FOREST                  40.80N 83.51W
06/29/2012                   HARDIN             OH   PUBLIC

            TREES DOWN. TIME ESTIMATED FROM RADAR.

0424 AM     TSTM WND DMG     NORTH LEWISBURG         40.22N 83.56W
06/29/2012                   CHAMPAIGN          OH   PUBLIC

            STRUCTURAL DAMAGE.

&&

BC

Local storm report, Jun 29, 4:47 PM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
447 PM EDT FRI JUN 29 2012

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

0446 PM     TSTM WND GST     KMWO MIDDLETOWN APT     39.53N 84.40W
06/29/2012  M63 MPH          BUTLER             OH   AWOS

&&

SFH

Local storm report, Jun 29, 4:51 PM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
451 PM EDT FRI JUN 29 2012

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

0428 PM     TSTM WND DMG     1 SE NORTH LEWISBURG    40.21N 83.54W
06/29/2012                   CHAMPAIGN          OH   TRAINED SPOTTER

            LARGE TREES DOWN. POWER POLES SNAPPED. TREE ON A HOUSE.
            MULTIPLE ROADS BLOCKED. FROM SPOTTERNETWORK.ORG

&&

BINAU

Local storm report, Jun 29, 4:52 PM EDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
452 PM EDT FRI JUN 29 2012

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

0424 PM     TSTM WND GST     1 NE BELLEFONTAINE      40.37N 83.74W
06/29/2012  M80 MPH          LOGAN              OH   MESONET

            OHIO DOT SENSOR.

&&

BINAU

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 3:11 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Darke, Mercer, Shelby	64 min
Jun 29, 3:17 PM EDT	Heat Advisory	ILN	Auglaize, Butler, Champaign, Clark, Clinton, Darke and 20 more	29 hr
Jun 29, 3:39 PM EDT	Special Weather Statement	ILN	Butler, Clark, Darke, Greene, Hamilton, Miami and 3 more	66 min
Jun 29, 3:42 PM EDT	Severe Thunderstorm Warning	ILN	Auglaize, Champaign, Hardin, Logan, Miami, Shelby	48 min
Jun 29, 3:44 PM EDT	Severe Thunderstorm Warning	ILN	Darke, Preble	46 min
Jun 29, 3:50 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Darke, Greene, Miami, Montgomery	25 min
Jun 29, 3:57 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Hardin, Logan, Union	48 min
Jun 29, 4:12 PM EDT	Severe Thunderstorm Warning	ILN	Champaign, Clark, Clinton, Darke, Fayette, Greene and 4 more	48 min
Jun 29, 4:14 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Montgomery, Preble	46 min
Jun 29, 4:19 PM EDT	Special Weather Statement	ILN	Adams, Brown, Butler, Champaign, Clark, Clermont and 19 more	116 min
Jun 29, 4:20 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Franklin, Madison, Union	40 min
Jun 29, 4:29 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Butler, Clermont, Clinton, Fayette, Hamilton and 3 more	46 min
Jun 29, 4:34 PM EDT	Severe Thunderstorm Warning	ILN	Clinton, Fayette, Franklin, Madison, Pickaway, Ross	56 min
Jun 29, 4:40 PM EDT	Areal Flood Advisory	ILN	Darke, Miami, Montgomery, Preble	2 hr
Jun 29, 4:53 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Butler, Clermont, Hamilton, Highland	37 min
Jun 29, 5:05 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Highland, Pike, Ross, Scioto	40 min
Jun 29, 5:07 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Hocking, Pickaway, Ross	68 min
Jun 29, 5:25 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont	50 min
Jun 29, 5:32 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Highland, Pike, Scioto	43 min
Jun 29, 5:33 PM EDT	Severe Thunderstorm Warning	ILN	Pike, Ross, Scioto	57 min
Jun 29, 6:06 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Scioto	39 min
Jun 29, 6:09 PM EDT	Excessive Heat Warning	ILN	Adams, Brown, Clermont, Hamilton, Montgomery, Scioto	26 hr
Jun 29, 6:15 PM EDT	Special Weather Statement	ILN	Adams, Brown	45 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2012 Every severe thunderstorm warning in 2012

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.