Alert archive / Ohio / Flash Flood Warnings in 2006

Flash Flood Warning 42, NWS Wilmington, OH

October 4, 2006Franklin County, Ohio

NWS Wilmington, OH issued this flash flood warning at Oct 4, 2006, 6:52 PM EDT for Franklin County, Ohio. It was in force for 113 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 4, 2006, 6:52 PM EDT (22:52 UTC)
Expired: Oct 4, 2006, 8:45 PM EDT
In force: 113 min
Issued by: NWS Wilmington, OH
Area: Counties, with a storm outline in the text

County Franklin County, OH

The radar

The Cincinnati radar (KILN), 98 km from the middle of the area, began a volume at 22:55 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.9 hours before the alert went out and 96 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: 715 J/kg
Mixed-layer CIN: -134 J/kg
Mixed-layer LCL: 988 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KILN 042254
FFWILN
OHC049-050045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
652 PM EDT WED OCT 4 2006

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  FRANKLIN COUNTY IN CENTRAL OHIO

* UNTIL 845 PM EDT

* AT 650 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THAT THUNDERSTORMS HAD PRODUCED HEAVY RAINFALL ACROSS THE WARNED   
  AREA. RADAR ESTIMATED UP TO TWO INCHES OF RAIN HAD FALLEN ACROSS   
  THE INTERSTATE 70 CORRIDOR ACROSS FRANKLIN COUNTY.  NUMEROUS       
  REPORTS OF STREET FLOODING HAVE BEEN RECEIVED FROM ACROSS THE      
  COLUMBUS METROPOLITAN AREA.

* HEAVY RAIN CONTINUES TO FALL ACROSS THE WARNED AREA WITH ANOTHER   
  ONE TO TWO INCHES POSSIBLE THROUGH 845 PM EDT. RUNOFF FROM THIS    
  EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR.

SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...BEXLEY...
COLUMBUS...DUBLIN...GAHANNA...GROVE CITY...HILLIARD...REYNOLDSBURG
AND UPPER ARLINGTON.

HEAVY RAINS FLOOD ROADS AND LOW LYING AREAS RAPIDLY. DO NOT DRIVE
YOUR VEHICLE INTO WATER OF AN UNKNOWN DEPTH ON THE THE ROAD. IT ONLY
TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY MOST SPORT UTILITY
VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO REACH YOUR
DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...MOST FLOOD
RELATED DEATHS OCCUR IN AUTOMOBILES.

LAT...LON 4013 8277 3982 8280 3980 8323 4012 8323

$$

HAWBLITZEL

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Oct 4, 3:57 PM EDT, 2 hours 55 minutes earlier.

Area forecast discussion, Oct 4, 3:57 PM EDT, 2 hours 55 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
357 PM EDT WED OCT 4 2006

.SHORT TERM /TONIGHT THROUGH FRIDAY NIGHT/...
POSITIVELY TILTED UPPER LEVEL TROF TO TRACK EAST/SE THROUGH THE
GREAT LAKES EARLY TONIGHT. SURFACE COLD FRONT FROM EXTREME NW
OHIO...NRN INDIANA INTO THE SRN PLAINS. THIS FRONT TO DROP SE
THRU THE REGION THIS EVENING. MODERATE INSTBY HAS DEVELOPED AHD
OF THIS FRONT WITH SBCAPES OF 1500-2000 K/KG. LAPS SOUNDINGS SHOW
A CAP WHICH HAS INHIBITED THE DEVELOPMENT OF WIDESPREAD DEEP
CONVECTION. AS THE FRONT NUDGES CLOSER EXPECT CAP TO BE ERODED AND
TSTMS TO DEVELOP. WITH DRY AIR IN THE MID LEVEL...DELTA THETA E
VALUES AROUND 25K WL EXIST THIS EVENING. THIS POINTS TO THE
POTENTIAL FOR DAMAGING WINDS. ALSO...WET BULB ZERO VALUES AROUND
9K FEET AGL INDICATE THE POTENTIAL FOR HAIL. BASED ON TRENDS AND
LATEST RADAR MOSAIC HAVE SLOWED DOWN THE ONSET OF PRECIP IN THE
FAR SOUTH.

IN THE WAKE OF THIS FRONT LOW LEVEL MOISTURE ADVECTS IN AND SHUD
KEEP THE AREA MOSTLY CLOUDY TNGT. IN LOW LEVEL NERLY CAA FLOW HAVE
HELD ONTO CLDS A LTL LONGER THURSDAY WITH CLEARING THU NIGHT.

IN NWRLY FLO ALOFT SURFACE HIGH PRESS OF CANADIAN ORIGIN TO BUILD
ACRS THE GREAT LAKES THURSDAY AND FRIDAY. MODEL SOLN/S HOLDING
ONTO SOME POST FRONT SHOWERS EARLY THU. FOR NOW HAVE KEPT THU
MRNG DRY BUT CONFIDENCE IS NOT OVERLY HIGH THAT THIS WL VERIFY.

TEMP WISE...PREFER LOWS A LTL WARMER THAN MAV GUID TNGT DUE TO
CLOUD COVER AND A LTL BLO DURG THE DAY THU DUE TO THESE CLDS.
WITH CLEARING EXPECTED THU NIGHT HAVE GONE SLIGHTLY BLO GUID.
CONTD THIS TREND GOING A LTL BLO GUID WITH FRIDAY/S HIGHS.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
HIGH PRESSURE WILL EXTEND ACROSS THE REGION THROUGH THE WEEKEND. A
WEAK COLD FRONT WILL PASS ON MONDAY. FORCING AND MOISTURE LOOK
MINIMAL. HAVE ONLY KEPT SLIGHT CHANCE POPS FOR THE NORTHERN ZONES.
ANOTHER HIGH WILL MOVE ACROSS THE GREAT LAKES ON TUESDAY. THERE ARE
SOME DISCREPANCIES IN MODEL SOLUTIONS FOR WEDNESDAY. AT THIS POINT
IT APPEARS THAT A COLD FRONT WILL CROSS THE REGION BRINGING A CHANCE
OF SHOWERS. WITH UNCERTAINTY HAVE LIMITED THIS TO LOW CHANCE POPS.

&&

.AVIATION /18Z-18Z/...
HAVE ADJUSTED TAFS TO REFLECT SLOWER PROGRESSION OF THE COLD
FRONT. AT THIS TIME...THE FRONT SHOULD TRANSVERSE THE TERMINALS
NORTH TO SOUTH 01Z-05Z. MVFR VISIBILITIES AND CIGS ARE LIKELY WITH
THE STORMS.

LOOKING AT FCST SNDG PROFILES...OBS AND SAT...IT STILL APPEARS
THAT MVFR CIGS WILL SETTLE IN BEHIND THE FRONT. CIGS MAY BECOME
VFR AT THE NORTHERN TERMINALS LATE IN THE PERIOD. SW WINDS WILL
GUST NEAR 20 KTS AT TIMES...TURN NE BEHIND THE FRONT.

&&

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

Hazardous weather outlook, Oct 4, 5:26 AM EDT, 13 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
526 AM EDT WED OCT 4 2006

INZ050-058-059-066-073>075-OHZ026-034-035-042>046-051>056-060>062-
070>072-050930-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-HARDIN-
MERCER-AUGLAIZE-DARKE-SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-
CHAMPAIGN-CLARK-MADISON-FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-
GREENE-BUTLER-WARREN-CLINTON-
526 AM EDT WED OCT 4 2006

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

.DAY ONE...TODAY AND TONIGHT
A STRONG COLD FRONT WILL MOVE THROUGH THE OHIO VALLEY THIS
AFTERNOON AND EARLY EVENING. A LINE OF THUNDERSTORMS IS EXPECTED
TO DEVELOP ALONG THIS FRONT...AND WINDS WITH THE INITIAL LINE MAY
GUST TO 40 MPH. BEHIND THIS FRONT...THUNDERSTORM ACTIVTY WILL NOT
BE AS ORGANIZED...BUT GUSTY WINDS ARE STILL EXPECTED ALONG WITH
HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON.

INZ080-KYZ089>100-OHZ063>065-073-074-077>082-088-050930-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT-
PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-FAYETTE OH-PICKAWAY-
FAIRFIELD-ROSS-HOCKING-HAMILTON-CLERMONT-BROWN-HIGHLAND-ADAMS-
PIKE-SCIOTO-
526 AM EDT WED OCT 4 2006

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

.DAY ONE...TODAY AND TONIGHT
A STRONG COLD FRONT WILL MOVE THROUGH THE OHIO VALLEY LATE THIS
AFTERNOON...MORESO IN THE EVENING HOURS. A LINE OF THUNDERSTORMS IS
EXPECTED TO DEVELOP ALONG THIS FRONT...AND WINDS WITH THE INITIAL
LINE MAY GUST TO 40 MPH. ABUNDANT SUNSHINE THIS MORNING AND
AFTERNOON MAY CHARGE THE ATMOSPHERE...ALLOWING SOME STORMS TO
BECOME STRONG ENOUGH TO SUPPORT LARGE HAIL. BEHIND THE
FRONT...THUNDERSTORM ACTIVTY WILL NOT BE AS ORGANIZED...BUT GUSTY
WINDS ARE STILL EXPECTED ALONG WITH HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NECESSARY LATE THIS AFTERNOON AND EARLY
EVENING.

In the hours before

Local storm report, Oct 4, 4:17 PM EDT, 2 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
417 PM EDT WED OCT 04 2006

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

0417 PM     HAIL             SPRINGFIELD             39.93N 83.80W
10/04/2006  E0.88 INCH       CLARK              OH   TRAINED SPOTTER

&&

Local storm report, Oct 4, 5:15 PM EDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
515 PM EDT WED OCT 04 2006

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

0453 PM     HAIL             COLUMBUS                39.99N 82.99W
10/04/2006  E0.75 INCH       FRANKLIN           OH   TRAINED SPOTTER

            PENNY SIZE HAIL REPORTED ON OHIO STATE UNIVERSITY CAMPUS

0503 PM     HAIL             GLADSTONE               39.74N 83.68W
10/04/2006  M0.88 INCH       GREENE             OH   LAW ENFORCEMENT

0503 PM     TSTM WND GST     GLADSTONE               39.74N 83.68W
10/04/2006  E70.00 MPH       GREENE             OH   LAW ENFORCEMENT

            ESTIMATED 70-80 MPH WIND GUST

&&

HAWBLITZEL

Local storm report, Oct 4, 5:56 PM EDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
556 PM EDT WED OCT 04 2006

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

0459 PM     TSTM WND DMG     COLUMBUS                39.99N 82.99W
10/04/2006                   FRANKLIN           OH   TRAINED SPOTTER

            NUMEROUS TREES DOWN NEAR OHIO STATE UNIVERSITY CAMPUS

0539 PM     TSTM WND DMG     1 SE JEFFERSONVILLE     39.64N 83.54W
10/04/2006                   FAYETTE            OH   LAW ENFORCEMENT

            OVERTURNED SEMI ON I-71 NEAR JEFFERSONVILLE

0541 PM     HAIL             6 NW WASHINGTON COURT H 39.60N 83.51W
10/04/2006  E0.75 INCH       FAYETTE            OH   LAW ENFORCEMENT

0541 PM     TSTM WND DMG     6 NW WASHINGTON COURT H 39.60N 83.51W
10/04/2006                   FAYETTE            OH   FIRE DEPT/RESCUE

            NUMEROUS TREE LIMBS DOWN ALONG SR 41 BETWEEN
            JEFFERSONVILLE AND WASHINGTON COURT HOUSE

&&

HAWBLITZEL

Local storm report, Oct 4, 5:59 PM EDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
559 PM EDT WED OCT 04 2006

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

0555 PM     HAIL             COLUMBUS                39.99N 82.99W
10/04/2006  E0.75 INCH       FRANKLIN           OH   TRAINED SPOTTER

            PENNY SIZE HAIL REPORTED IN DOWNTOWN COLUMBUS

0555 PM     TSTM WND DMG     COLUMBUS                39.99N 82.99W
10/04/2006                   FRANKLIN           OH   TRAINED SPOTTER

            TREES DOWN IN DOWNTOWN COLUMBUS

&&

HAWBLITZEL

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 4, 4:10 PM EDT	Severe Thunderstorm Warning	ILN	Clark	50 min
Oct 4, 4:27 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene	48 min
Oct 4, 4:44 PM EDT	Severe Thunderstorm Warning	ILN	Licking	46 min
Oct 4, 4:50 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	40 min
Oct 4, 4:55 PM EDT	Severe Thunderstorm Warning	ILN	Greene	50 min
Oct 4, 5:00 PM EDT	Severe Thunderstorm Warning	ILN	Fayette, Madison	45 min
Oct 4, 5:32 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield	43 min
Oct 4, 5:40 PM EDT	Tornado Warning	ILN	Fayette	35 min
Oct 4, 5:47 PM EDT	Severe Thunderstorm Warning	ILN	Madison	43 min
Oct 4, 5:55 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	50 min
Oct 4, 6:01 PM EDT	Severe Thunderstorm Warning	ILN	Greene	44 min
Oct 4, 6:05 PM EDT	Severe Thunderstorm Warning	ILN	Madison	40 min
Oct 4, 6:15 PM EDT	Severe Thunderstorm Warning	ILN	Ross	45 min
Oct 4, 6:25 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	50 min
Oct 4, 6:37 PM EDT	Tornado Warning	ILN	Franklin	23 min
Oct 4, 6:59 PM EDT	Tornado Warning	ILN	Franklin	20 min
Oct 4, 7:01 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Licking	44 min
Oct 4, 7:09 PM EDT	Severe Thunderstorm Warning	ILN	Ross	66 min
Oct 4, 7:57 PM EDT	Severe Thunderstorm Warning	ILN	Pike	48 min

Nearby

Flash Flood Warnings in Ohio, 2006 Every flash flood warning in 2006

Sources

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