Alert archive / Ohio / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 118, NWS Wilmington, OH

June 29, 20124 counties in Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 29, 2012, 3:57 PM EDT for 4 counties in Ohio. It was in force for 48 min. 13 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, 3:57 PM EDT (19:57 UTC)
Expired: Jun 29, 2012, 4:45 PM EDT
In force: 48 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

Counties Champaign County, OH, Hardin County, OH, Logan County, OH, Union County, OH

The radar

The Cincinnati radar (KILN), 124 km from the middle of the area, began a volume at 19:58 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, 4:03 PM EDT	TSTM WND GST 63	1 S Kenton, OH
Jun 29, 4:05 PM EDT	TSTM WND DMG	Kenton, OH	NUMEROUS LARGE TREES AND LARGE BRANCHES DOWN.
Jun 29, 4:14 PM EDT	TSTM WND DMG	Kenton, OH	NUMEROUS TREES DOWN...SOME ON CARS.
Jun 29, 4:15 PM EDT	TSTM WND DMG	1 N Bellefontaine, OH	LARGE BRANCH BLOCKING US 33/68 EXIT RAMP. ALSO WATER PONDED HERE. OTHER LARGE LIMBS DOWN IN AREA.
Jun 29, 4:15 PM EDT	TSTM WND DMG	Bellefontaine, OH	LARGE TREE BRANCHES DOWN.
Jun 29, 4:15 PM EDT	TSTM WND DMG	Kenton, OH	SIDING OFF HOMES...NUMEROUS TRESS DOWN
Jun 29, 4:20 PM EDT	TSTM WND DMG	Bellefontaine, OH	NUMEROUS TREES DOWN AND ROOF DAMAGE TO SEVERAL BUILDINGS.
Jun 29, 4:24 PM EDT	TSTM WND DMG	North Lewisburg, OH	STRUCTURAL DAMAGE. TIME CORRECTED FROM AM TO PM.
Jun 29, 4:24 PM EDT	TSTM WND GST 80	1 Ne Bellefontaine, OH	OHIO DOT SENSOR.
Jun 29, 4:25 PM EDT	TSTM WND DMG	Forest, OH	TREES DOWN. TIME CORRECTED FROM AM TO PM.
Jun 29, 4:27 PM EDT	TSTM WND DMG	North Lewisburg, OH	NUMEROUS 4 INCH PLUS LIMBS DOWN. DAMAGE TO SMALL SHED.
Jun 29, 4:28 PM EDT	TSTM WND DMG	1 Se North Lewisburg, OH	LARGE TREES DOWN. POWER POLES SNAPPED. TREE ON A HOUSE. MULTIPLE ROADS BLOCKED. FROM SPOTTERNETWORK.ORG
Jun 29, 4:37 PM EDT	TSTM WND DMG	Bellefontaine, OH	NUMEROUS LARGE TREES AND LIMBS ARE DOWN THROUGHOUT THE COUNTY. POWER LINES DOWN. 2 HOUSE FIRES.

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 13 storm reports to this severe thunderstorm warning; the first came 6 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, 8.0 hours before the alert went out and 123 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.

423 
WUUS51 KILN 291957
SVRILN
OHC021-065-091-159-292045-
/O.NEW.KILN.SV.W.0118.120629T1957Z-120629T2045Z/

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

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN UNION COUNTY IN CENTRAL OHIO...
  CHAMPAIGN COUNTY IN WEST CENTRAL OHIO...
  HARDIN COUNTY IN WEST CENTRAL OHIO...
  EASTERN LOGAN COUNTY IN WEST CENTRAL OHIO...

* UNTIL 445 PM EDT.

* AT 354 PM EDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS   
CAPABLE OF PRODUCING VIOLENT STRAIGHT LINE WINDS TO 75 MPH. THESE 
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM WAYNESFIELD TO 
PIQUA...MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BELLE CENTER...
  DUNKIRK...
  BELLEFONTAINE...
  KENTON...
  WEST LIBERTY...
  FOREST...
  URBANA...
  WEST MANSFIELD...

IN ADDITION...MCGUFFEY...HUNTERSVILLE...WALTON...JUMBO...DOLA...
BLANCHARD...NORTHWOOD AND SILVER CREEK ARE NEAR THE PATH OF THESE
SEVERE THUNDERSTORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS! IF YOU ARE NEAR THEIR PATH...YOU SHOULD
PREPARE FOR VIOLENT STRAIGHT LINE WINDS AS DESTRUCTIVE AS A TORNADO.

THESE STORMS HAVE THE POTENTIAL TO CAUSE SERIOUS INJURY AND
SIGNIFICANT DAMAGE TO PROPERTY. ABANDON MOBILE HOMES AND VEHICLES FOR
MORE SUBSTANTIAL SHELTER. MOVE TO AN INTERIOR ROOM ON THE LOWEST
FLOOR AND AVOID WINDOWS.

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 4071 8349 4071 8344 4068 8341 4051 8341
      4050 8334 4023 8349 4001 8352 4004 8391
      4047 8379 4082 8378 4082 8350
TIME...MOT...LOC 1957Z 270DEG 44KT 4069 8391 4016 8416

$$

HATZOS

3 follow-up statements

196 
WWUS51 KILN 292010
SVSILN

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

OHC021-065-091-159-292045-
/O.CON.KILN.SV.W.0118.000000T0000Z-120629T2045Z/
CHAMPAIGN OH-HARDIN OH-LOGAN OH-UNION OH-
410 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHWESTERN UNION COUNTY IN CENTRAL OHIO...AND EASTERN LOGAN...
HARDIN AND CHAMPAIGN COUNTIES IN WEST CENTRAL OHIO...

AT 406 PM EDT...RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING
WINDS TO 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING 
FROM HUNTERSVILLE TO PLATTSVILLE...MOVING EAST AT 60 MPH.

LOCATIONS IMPACTED INCLUDE...
DUNKIRK...BELLEFONTAINE...KENTON...WEST LIBERTY...FOREST...URBANA...
WEST MANSFIELD...NORTH LEWISBURG AND MECHANICSBURG.

IN ADDITION...BLANCHARD...TERRE HAUTE...NORTHWOOD...SILVER CREEK...
WESTVILLE...GRANT...RUSHSYLVANIA AND BIG SPRINGS ARE NEAR THE PATH OF
THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL AND DAMAGING 
WINDS. NUMEROUS REPORTS OF WIND DAMAGE HAVE BEEN RECEIVED. SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

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 4071 8349 4071 8344 4068 8341 4051 8341
      4050 8334 4023 8349 4001 8352 4004 8391
      4047 8379 4082 8378 4082 8350
TIME...MOT...LOC 2009Z 268DEG 47KT 4071 8368 4018 8393

$$

HATZOS

593 
WWUS51 KILN 292024
SVSILN

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

OHC021-065-091-159-292045-
/O.CON.KILN.SV.W.0118.000000T0000Z-120629T2045Z/
CHAMPAIGN OH-HARDIN OH-LOGAN OH-UNION OH-
424 PM EDT FRI JUN 29 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHWESTERN UNION COUNTY IN CENTRAL OHIO...AND EASTERN LOGAN...
HARDIN AND CHAMPAIGN COUNTIES IN WEST CENTRAL OHIO...

AT 423 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 MOUNT VICTORY TO POWHATTAN...MOVING EAST AT 50 MPH.

LOCATIONS IMPACTED INCLUDE...
NORTH LEWISBURG AND MECHANICSBURG.

IN ADDITION...MUTUAL...CATAWBA STATION...RAYMOND...POTTERSBURG...
SOMERSVILLE AND WOODSTOCK ARE NEAR THE PATH OF THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL AND DAMAGING
WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS!

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 4071 8349 4071 8348 4068 8341 4051 8341
      4050 8334 4023 8349 4001 8352 4004 8391
      4047 8379 4082 8378 4082 8350
TIME...MOT...LOC 2025Z 287DEG 45KT 4052 8342 4006 8369

$$

HATZOS

627 
WWUS51 KILN 292041
SVSILN

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

OHC021-065-091-159-292051-
/O.EXP.KILN.SV.W.0118.000000T0000Z-120629T2045Z/
CHAMPAIGN OH-HARDIN OH-LOGAN OH-UNION OH-
441 PM EDT FRI JUN 29 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN UNION COUNTY IN
CENTRAL OHIO...AND EASTERN LOGAN...HARDIN AND CHAMPAIGN COUNTIES IN
WEST CENTRAL OHIO WILL EXPIRE AT 445 PM EDT...

THE THUNDERSTORMS HAVE MOVED OUT OF THE WARNED AREA...THEREFORE THE 
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE. ANOTHER 
SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR MOST OF UNION 
COUNTY.

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 4071 8349 4071 8348 4068 8341 4051 8341
      4050 8334 4023 8349 4001 8352 4004 8391
      4047 8379 4082 8378 4082 8350
TIME...MOT...LOC 2041Z 287DEG 45KT 4046 8317 4000 8344

$$

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, 20 minutes earlier.

Area forecast discussion, Jun 29, 3:37 PM EDT, 20 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, 18 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, 3:37 PM EDT, 20 minutes before

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

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

0330 PM     TSTM WND DMG     ROCKFORD                40.69N 84.65W
06/29/2012                   MERCER             OH   TRAINED SPOTTER

            CHURCH STEEPLE KNOCKED OVER. POWER LINES ALSO DOWN.

&&

JDR

Special weather statement, Jun 29, 3:39 PM EDT, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
339 PM EDT FRI JUN 29 2012

INZ050-058-059-066-KYZ092-093-OHZ042-051-053-054-060>063-070>072-077-
078-292045-
UNION IN-FRANKLIN IN-FAYETTE IN-WAYNE IN-KENTON KY-CAMPBELL KY-
BUTLER OH-CLARK OH-CLINTON OH-DARKE OH-FAYETTE OH-GREENE OH-
HAMILTON OH-MADISON OH-MIAMI OH-MONTGOMERY OH-PREBLE OH-WARREN OH-
CLERMONT OH-
339 PM EDT FRI JUN 29 2012

...STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN
CLERMONT...WARREN...PREBLE...MONTGOMERY...MIAMI...SOUTHWESTERN
MADISON...HAMILTON...GREENE...EXTREME NORTHWESTERN
FAYETTE...SOUTHERN DARKE...NORTHWESTERN
CLINTON...CLARK...BUTLER...CAMPBELL...EXTREME NORTHERN
KENTON...WAYNE...FAYETTE...NORTHEASTERN FRANKLIN AND UNION COUNTIES
THROUGH 445 PM EDT...

AT 336 PM EDT...RADAR INDICATED A CLUSTER OF RAPIDLY INTENSIFYING
THUNDERSTORMS 7 MILES NORTH OF FRANKLIN...MOVING SOUTHEAST AT
60 MPH.

WIND GUSTS TO 50 MPH AND ONE HALF INCH DIAMETER HAIL ARE POSSIBLE
WITH THIS STORM.

IN ADDITION...FREQUENT CLOUD TO GROUND LIGHTNING CAN BE EXPECTED WITH
THIS STORM.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...HAGERSTOWN...DUBLIN...
CAMBRIDGE CITY...CONNERSVILLE...FOUNTAIN CITY...CENTERVILLE...
RICHMOND...GREENVILLE...NEW PARIS...NEW MADISON...LIBERTY AND
ARCANUM.

ALSO...ECONOMY...BENTONVILLE...MOUNT AUBURN...EAST GERMANTOWN...
JACKSONBURG...GREENS FORK...WILLIAMSBURG AND BEESONS ARE NEAR THE
PATH OF THIS STRONG THUNDERSTORM.

DO NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER TREES WHEN LIGHTNING
THREATENS. MOVE INDOORS WHEN A THUNDERSTORM APPROACHES.

LAT...LON 3979 8530 3980 8523 4001 8520 4001 8482
      4013 8481 4016 8445 4006 8404 4004 8403
      4004 8397 3988 8336 3901 8446 3976 8531

ASL

Local storm report, Jun 29, 3:43 PM EDT, 14 minutes before

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

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

0342 PM     TSTM WND DMG     CELINA                  40.55N 84.57W
06/29/2012                   MERCER             OH   EMERGENCY MNGR

            SEVERAL LARGE LIMBS AND POWER POLES DOWN WITHIN IN THE
            CITY OF CELINA.

&&

BINAU

Local storm report, Jun 29, 3:44 PM EDT, 13 minutes before

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

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

0337 PM     TSTM WND DMG     ST. MARYS               40.54N 84.39W
06/29/2012                   AUGLAIZE           OH   TRAINED SPOTTER

            SEVERAL POWER AND PHONE POLES DOWN. ROOF TORN OFF A
            MOBILE HOME.

&&

JDR

Local storm report, Jun 29, 3:50 PM EDT, 7 minutes before

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

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

0349 PM     TSTM WND GST     KAXV WAPAKONETA APT     40.49N 84.30W
06/29/2012  M63 MPH          AUGLAIZE           OH   AWOS

&&

SFH

Local storm report, Jun 29, 3:52 PM EDT, 5 minutes before

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

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

0352 PM     TSTM WND GST     KAXV WAPAKONETA APT     40.49N 84.30W
06/29/2012  M74 MPH          AUGLAIZE           OH   AWOS

&&

SFH

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, 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, 4:52 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Franklin, Licking, Madison, Union	53 min
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.