Thunderstorm Wind, Warren
- When
- July 27, 3:15 AM EST to 3:20 AM EST
- Where
- Warren County, Springboro
- Measured
- 50 kt (58 mph)
- Property damage
- $2,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.550, -84.233
Trees were blown down.
Flash Flooding and Flooding in Ohio, July 27, 2002
5 flood, 2 thunderstorm wind, 2 flash flood, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 7 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $38,000
- Crop damage
- None recorded
- Events
- 9
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What forecasters said that day
The local office's own words before the first event, 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 the first event at Jul 27, 2:33 AM EST, 42 minutes earlier.
Area forecast discussion, Jul 27, 2:33 AM EST, 42 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON OH 333 AM EDT SAT JUL 27 2002 A SERIES OF S/WVS TO SPILL OVR MID/UPR LVL RDG AXIS FM MID MS VLY INTO GRTLKS/OH VLY THRU THE PERIOD. FCST CHALLENGE CONTS TO BE TIMING AND CHC/S OF TSTMS IN TROPICAL AMS UNTIL CDFNT FROPA TAKES PLACE OVRNGT MON. IN SHORT TERM...MCS OVR CNTRL IL HS DVLPD RAPIDLY ESE ALONG AND AHD OF WRMFNT WHICH EXTENDS FM CNTRL IL THRU SRN IN. XPCT THIS TREND TO CONT WITH SCTD ELEVATED TSTMS DVLPG ALONG FAVORABLE AXIS OF LO LVL MSTR CONVERGENCE INTO SE IN/SW OH. THIS WRMFNT SHUD CONT TO BE FOCUS FOR CONVECTION TDA. WL CONT CHC POPS ACRS THE ENTIRE REGION WITH THE HIGHEST POPS SW. TEMP WISE...HAVE GONE CLOSE TO WRMR FWC GUID VALUES. S/WV ENERGY AND ASSOCIATED FAVORABLE LO LVL CONVERGENCE AXIS TO SHIFT N INTO GRTLKS REGION OVRNGT. WL MENTION CHC POPS ACRS THE CNTRL AND N THIS EVE. IN WARM AND MOIST AMS WITH SWRLY WINDS STAYING UP BTWN 8-10 MPH...PREFER LOW TEMPS CLOSER TO WRMR MAV GUID TNGT. ON SUN...MID/UPR LVL RDG BLDS INTO OH VLY WITH MAIN STORM TRACK TO THE N ACRS GRTLKS ASSOCIATED WITH BAND OF WESTERLIES. FCST SOUNDINGS INDICATE THAT SRN SECTIONS WL BE CAPPED ON SUN...SO WL DROP MENT OF PRECIP BUT WL MAINTAIN LO POP CHC ACRS THE N. WL TREND HI TEMPS CLOSER TO WRMR MET GUID SUN. FLO BACKS IN RESPONSE TO S/WV TROF OVR MID MS VLY WHICH TRACKS INTO GRTLKS MON. MON/MON NIGHT APPEARS TO BE THE BEST CHC FOR ORGANIZED TSTMS WITH FNT DROPPING THRU THE AREA. WL CONT 50 POPS ACRS THE ENTIRE CWA BUT WL CUT HI TEMPS BACK A LTL DUE TO XPCTD CLDS AND PRECIP. .ILN...NONE. RANDALL
The radar
The Cincinnati radar (KILN), 38 km away, was scanning. The volume nearest the first event began at 08:14 UTC.
Event by event
5 flood, 2 thunderstorm wind, 2 flash flood. Local standard time, as filed.
Thunderstorm Wind, Clinton
- When
- July 27, 3:45 AM EST to 4:00 AM EST
- Where
- Clinton County, Countywide
- Measured
- 50 kt (58 mph)
- Property damage
- $2,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.400, -83.783
Large limbs and a tree were blown down in the northwest part of the county.
Flood, Warren
- When
- July 27, 6:15 AM EST to 6:45 AM EST
- Where
- Warren forecast zone
- Property damage
- $2,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.428, -84.167 (the zone’s center; the record gives no point)
A slow moving warm front tracking across the region during the early morning, produced strong thunderstorms with torrential rainfall. Rainfall amounts of four to six inches fell in a four hour period across the southern Miami Valley and portions of south central Ohio. This led to numerous road closures and creeks out of their banks with damage reported on the south side of Dayton and across Greene County. Damage estimates from the storms in Montgomery County alone are around $8000.
Flood, Clinton
- When
- July 27, 6:15 AM EST to 6:45 AM EST
- Where
- Clinton forecast zone
- Property damage
- $2,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.415, -83.808 (the zone’s center; the record gives no point)
A slow moving warm front tracking across the region during the early morning, produced strong thunderstorms with torrential rainfall. Rainfall amounts of four to six inches fell in a four hour period across the southern Miami Valley and portions of south central Ohio. This led to numerous road closures and creeks out of their banks with damage reported on the south side of Dayton and across Greene County. Damage estimates from the storms in Montgomery County alone are around $8000.
Flood, Montgomery
- When
- July 27, 7:10 AM EST to 7:30 AM EST
- Where
- Montgomery forecast zone
- Property damage
- $8,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.755, -84.291 (the zone’s center; the record gives no point)
A slow moving warm front tracking across the region during the early morning, produced strong thunderstorms with torrential rainfall. Rainfall amounts of four to six inches fell in a four hour period across the southern Miami Valley and portions of south central Ohio. This led to numerous road closures and creeks out of their banks with damage reported on the south side of Dayton and across Greene County. Damage estimates from the storms in Montgomery County alone are around $8000.
Flash Flood, Warren
- When
- July 27, 7:10 AM EST to 7:25 AM EST
- Where
- Warren County, Five Pts
- Property damage
- $8,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.428, -84.167 (the zone’s center; the record gives no point)
Several roads were closed. A mudslide closed a part of route 73 near interstate 75.
Flash Flood, Clinton
- When
- July 27, 7:20 AM EST to 7:40 AM EST
- Where
- Clinton County, Countywide
- Property damage
- $3,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.415, -83.808 (the zone’s center; the record gives no point)
High water forced the closures of several area roads.
Flood, Fayette
- When
- July 27, 7:24 AM EST to 7:45 AM EST
- Where
- Fayette forecast zone
- Property damage
- $3,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.560, -83.456 (the zone’s center; the record gives no point)
A slow moving warm front tracking across the region during the early morning, produced strong thunderstorms with torrential rainfall. Rainfall amounts of four to six inches fell in a four hour period across the southern Miami Valley and portions of south central Ohio. This led to numerous road closures and creeks out of their banks with damage reported on the south side of Dayton and across Greene County. Damage estimates from the storms in Montgomery County alone are around $8000.
Flood, Greene
- When
- July 27, 7:30 AM EST to 7:50 AM EST
- Where
- Greene forecast zone
- Property damage
- $8,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.692, -83.890 (the zone’s center; the record gives no point)
A slow moving warm front tracking across the region during the early morning, produced strong thunderstorms with torrential rainfall. Rainfall amounts of four to six inches fell in a four hour period across the southern Miami Valley and portions of south central Ohio. This led to numerous road closures and creeks out of their banks with damage reported on the south side of Dayton and across Greene County. Damage estimates from the storms in Montgomery County alone are around $8000.
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Damaging Winds in Michigan, July 27 to 28, 2002
- Flash Flooding and Damaging Winds in Texas, July 27, 2002
- Hail and Damaging Winds in Minnesota, July 27, 2002
- Tornado in Florida, July 27, 2002
- Tornado and Damaging Wind in Pennsylvania, July 27, 2002
- Hail and Damaging Winds in Ohio, July 27, 2002
- Flash Flood in West Virginia, July 27, 2002
- Flash Flood in Pennsylvania, July 27, 2002
- Damaging Winds in Iowa, July 27, 2002
- Hail and Damaging Wind in Kansas, July 27, 2002
- Hail and Damaging Winds in Montana, July 27, 2002
- Hail and Damaging Winds in Kansas, July 27, 2002
More
Every storm in Ohio in 2002Every state in 2002This day in weather historyWarnings in Ohio, July 2002
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5311932, 5311933, 5311934, 5311935, 5311936, 5312003, 5312004, 5312002, 5311937.