Alert archive / Ohio / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 145, NWS Wilmington, OH

July 27, 1997Pickaway County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 27, 1997, 1:05 AM EDT for Pickaway County, Ohio. It was in force for 60 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 27, 1997, 1:05 AM EDT (05:05 UTC)
Expired
Jul 27, 1997, 2:05 AM EDT
In force
60 min
Issued by
NWS Wilmington, OH
Area
Whole counties

County Pickaway County, OH

The radar

The Cincinnati radar (KILN), 73 km from the middle of the area, began a volume at 05:08 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

TimeReportWhereRemark
Jul 27, 1:25 AM EDTThunderstorm Wind 50Ashville, OHSeveral trees downed.
Jul 27, 1:42 AM EDTThunderstorm Wind 70Whisler, OHSeveral barns destroyed, roof blown off a garage, and numerous trees downed. Some of the trees fell across some of which fell across homes and barns.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.1 hours before the alert went out and 71 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 1997-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4383 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 1997-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.1939Sfc1 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
4383 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1206 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
0.0
Supercell composite
13.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KILN 270504 RRA
SVRILN
OHC129-270605-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
105 AM EDT SUN JUL 27 1997

THE NATIONAL WEATHER SERVICE IN WILMINGTON OH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 205 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL OHIO

   ...PICKAWAY COUNTY
 
AT 100 AM WEATHER SERVICE DOPPLER RADAR WAS INDICATING A SEVERE
THUNDERSTORM OVER SOUTHERN FRANKLIN COUNTY. THIS STORM WAS MOVING
TO THE SOUTHEAST AT 25 MPH AND WILL TRACK ACROSS ASHVILLE...AND
CIRCLEVILLE. ALSO...EXPECT TORRENTIAL RAINFALL FROM THIS STORM
WHICH WILL LIKELY PRODUCE STREET FLOODING.

THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE WHEN IT PASSED
OVER COLUMBUS.
 
IT IS DANGEROUS TO BE OUTDOORS WHILE A SEVERE THUNDERSTORM IS IN
PROGRESS. DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DEADLY LIGHTNING ARE ALL POSSIBLE. SEEK SHELTER IN A BUILDING OR A
VEHICLE. IF YOU$ ARE CAUGHT IN THE OPEN...STAY AWAY FROM TOWERS AND
LARGE TREES. CROUCH NEAR THE GROUND AND COVER YOUR HEAD.

&
RANDALL

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 Jul 26, 8:10 PM EDT, 4 hours 55 minutes earlier.

Area forecast discussion, Jul 26, 8:10 PM EDT, 4 hours 55 minutes before
FORECAST COORDINATION MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON OH
810 PM EDT SAT JUL 26 1997

VRY MOIST (DWPTS IN UPR 70S) AND WRM AIR HAS INVADED WRN OH CAUSING AMS
TO BCM VRY UNSBL. VRY UNSTBL AMS WITH CAPES TO 4000-5000 J/KG AND LI/S
TO -10 OVR WRN AND CNTRL OH. ISO SVR TSTMS DVLPG ALONG N-S ORIENTED
WRMFNT FM NR CLE TO CMH TO S CNTRL OH. GOOD VEERING PROFILE SUPPORTING
ROTATING STMS WITH MANY REPORTS OF FUNNELS AND PSBL TORNADO TOUCHDOWN
IN LICKING CTY. ADDITIONAL TSTM ACTVTY CURRENTLY IN THE NRN IL AREA
WL FOLLOW THCKNS INTO NW OH AFTR MID NGT. SUGG INCRSG TSTM POPS OVR
W CNTRL OH IN RESPONSE TO THIS ACTVTY. LOOKING AT TRAJ AND LAST NGTS
LOWS AND DWPTS IN MID/UPR DWPTS SUGG GOING WRMR ON OVRNGT LOWS ARND
75 ACRS THE BOARD. PER COORD WITH CLE HEAT ADVSY LOOKS LIKE THE WAY
TO GO WITH XPCTD HI/S IN MID 90S SUN AND DWPTS IN MID AND UPR 70S.
THIS VALUES WL YIELD HEAT INDEXES OF 105 TO 115.

CVG 075/095 13
DAY 074/094 23
CMH 074/095 33

RANDALL

In the hours before

Local storm report, Jul 27, 12:01 AM EDT, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1202 AM EDT SUN JUL 27 1997

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1125 PM                              OH   WIND DAMAGE
07/26/97   VAN WERT                       BARN LEVELED 6 MILES WEST
                                          OF VAN WERT (NEAR STATE
                                          LINE)
Local storm report, Jul 27, 12:02 AM EDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1202 AM EDT SUN JUL 27 1997

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1125 PM                              OH   WIND DAMAGE
07/26/97   VAN WERT                       BARN LEVELED 6 MILES WEST
                                          OF VAN WERT (NEAR STATE
                                          LINE)
Local storm report, Jul 27, 12:03 AM EDT, 1 hour 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1204 AM EDT SUN JUL 27 1997

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1045 PM                              OH   WIND DAMAGE
07/26/97   DELAWARE                       LOTS OF TREES DOWN & POWER
                                          LINES DOWN ACROSS NE PART
                                          OF COUNTY
Special weather statement, Jul 27, 12:03 AM EDT, 1 hour 2 minutes before
OHZ015-016-024>026-035-043>046-051>056-062>065-072>074-079>082-
088-270800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1203 AM EDT SUN JUL 27 1997

...SEVERE THUNDERSTORM WATCH NO LONGER IN EFFECT FOR PARTS OF CENTRAL
   AND WESTERN OHIO...

THUNDERSTORMS WITH FREQUENT LIGHTNING AND TORRENTIAL DOWNPOURS CONTINUE
TO AFFECT CENTRAL AND WEST-CENTRAL OHIO.  ORGANIZED SEVERE WEATHER IS
NOT EXPECTED FOR THE REMAINDER OF THE OVERNIGHT HOURS.
HOWEVER...NUMEROUS THUNDERSTORMS WILL CONTINUE TO AFFECT THE BUCKEYE
STATE AND A FEW OF THESE STORMS COULD STILL PRODUCE DAMAGING WINDS AND
LARGE HAIL.

THE MAIN THREAT FOR THE REST OF THE NIGHT WILL BE FLOODING RAINS AND
FREQUENT CLOUD TO GROUND LIGHTNING.  AT MIDNIGHT...DOPPLER RADAR
INDICATED THAT OVER 8 INCHES OF RAIN HAD FALLEN IN LICKING COUNTY SINCE
630 PM.  STREETS WERE REPORTED TO BE FLOODED ACROSS LICKING COUNTY.

NEVER DRIVE THROUGH WATER OF UNKNOWN DEPTH.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

WILKINSON
Local storm report, Jul 27, 12:04 AM EDT, 1 hour 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OHIO
1204 AM EDT SUN JUL 27 1997

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1045 PM                              OH   WIND DAMAGE
07/26/97   DELAWARE                       LOTS OF TREES DOWN & POWER
                                          LINES DOWN ACROSS NE PART
                                          OF COUNTY
Special weather statement, Jul 27, 12:04 AM EDT, 1 hour 1 minute before
OHZ015-016-024>026-035-043>046-051>056-062>065-072>074-079>082-
088-270800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1203 AM EDT SUN JUL 27 1997

...SEVERE THUNDERSTORM WATCH NO LONGER IN EFFECT FOR PARTS OF CENTRAL
   AND WESTERN OHIO...

THUNDERSTORMS WITH FREQUENT LIGHTNING AND TORRENTIAL DOWNPOURS CONTINUE
TO AFFECT CENTRAL AND WEST-CENTRAL OHIO.  ORGANIZED SEVERE WEATHER IS
NOT EXPECTED FOR THE REMAINDER OF THE OVERNIGHT HOURS.
HOWEVER...NUMEROUS THUNDERSTORMS WILL CONTINUE TO AFFECT THE BUCKEYE
STATE AND A FEW OF THESE STORMS COULD STILL PRODUCE DAMAGING WINDS AND
LARGE HAIL.

THE MAIN THREAT FOR THE REST OF THE NIGHT WILL BE FLOODING RAINS AND
FREQUENT CLOUD TO GROUND LIGHTNING.  AT MIDNIGHT...DOPPLER RADAR
INDICATED THAT OVER 8 INCHES OF RAIN HAD FALLEN IN LICKING COUNTY SINCE
630 PM.  STREETS WERE REPORTED TO BE FLOODED ACROSS LICKING COUNTY.

NEVER DRIVE THROUGH WATER OF UNKNOWN DEPTH.

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES.

WILKINSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 8:08 PM EDTTornado WarningILNLicking22 min
Jul 26, 8:34 PM EDTSevere Thunderstorm WarningILNHocking61 min
Jul 26, 8:40 PM EDTFlash Flood WarningILNFairfield65 min
Jul 26, 8:40 PM EDTTornado WarningILNFairfield65 min
Jul 26, 8:44 PM EDTSevere Thunderstorm WarningILNPaulding, Putnam61 min
Jul 26, 8:58 PM EDTSevere Thunderstorm WarningILNLicking62 min
Jul 26, 10:02 PM EDTFlash Flood WarningILNLicking48 min
Jul 26, 10:02 PM EDTTornado WarningILNLicking48 min
Jul 26, 10:14 PM EDTSevere Thunderstorm WarningILNDelaware46 min
Jul 26, 10:21 PM EDTSevere Thunderstorm WarningILNHocking49 min
Jul 26, 10:26 PM EDTSevere Thunderstorm WarningILNFairfield64 min
Jul 26, 10:36 PM EDTSevere Thunderstorm WarningILNVan Wert64 min
Jul 26, 10:50 PM EDTFlash Flood WarningILNLicking2 hr
Jul 26, 10:52 PM EDTTornado WarningILNFairfield48 min
Jul 26, 10:56 PM EDTTornado WarningILNVan Wert64 min
Jul 26, 11:06 PM EDTSevere Thunderstorm WarningILNLicking59 min
Jul 26, 11:26 PM EDTFlash Flood WarningILNFairfield, Hocking4 hr
Jul 27, 12:25 AM EDTFlash Flood WarningILNLicking3 hr
Jul 27, 12:40 AM EDTSevere Thunderstorm WarningILNFranklin35 min
Jul 27, 4:33 PM EDTSevere Thunderstorm WarningILNMercer47 min
Jul 27, 4:37 PM EDTSevere Thunderstorm WarningILNShelby38 min
Jul 27, 4:46 PM EDTSevere Thunderstorm WarningILNDarke, Miami44 min
Jul 27, 5:29 PM EDTSevere Thunderstorm WarningILNHardin46 min
Jul 27, 5:45 PM EDTSevere Thunderstorm WarningILNMontgomery50 min
Jul 27, 5:58 PM EDTSevere Thunderstorm WarningILNButler47 min
Jul 27, 6:21 PM EDTSevere Thunderstorm WarningILNHamilton44 min
Jul 27, 6:36 PM EDTSevere Thunderstorm WarningILNDelaware49 min
Jul 27, 6:48 PM EDTSevere Thunderstorm WarningILNFairfield42 min
Jul 27, 6:59 PM EDTSevere Thunderstorm WarningILNFayette31 min
Jul 27, 7:12 PM EDTSevere Thunderstorm WarningILNRoss63 min
Jul 27, 7:30 PM EDTSevere Thunderstorm WarningILNLicking40 min
Jul 27, 7:50 PM EDTFlash Flood WarningILNFairfield, Licking3 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 1997Every severe thunderstorm warning in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.