A deep low pressure system tracked through the northern Ohio Valley during the morning of Friday December 1st. This system produced gradient winds that were sustained at 40 to 45 mph, particularly in the early afternoon.
Every event with a place to put it; 8 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS ILN wrote it up.
A deep low pressure system tracked through the northern Ohio Valley during the morning of Friday December 1st. This system produced gradient winds that were sustained at 40 to 45 mph, particularly in the early afternoon.
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 Dec 1, 6:56 AM EST, 1 hour 34 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
656 AM EST FRI DEC 1 2006
.AVIATION /12Z-12Z/...
THE SFC LOW WAS LOCATED OVER INDIANA THIS MORNING WITH NUMEROUS
SHOWERS ACROSS AREAS EAST OF I-75. AS THE LOW PROGRESSES NE...PCPN
WILL SCATTERED. SW WINDS WILL GUST WILL BE NEAR/ABOVE 40 KTS AT
TIMES 16Z-23Z...DROPPING NEAR 20 KTS IN THE EVENING AS THE LOW
MOVES NORTH OF THE REGION.
GENERALLY...VFR CIGS WILL DROP TO MVFR OVER THE NEXT FEW HOURS AND REMAIN
MVFR THROUGH 06Z...THEN SCATTERING OUT SW TO NE. MVFR
VISIBILITIES WITH -SHSN ARE POSSIBLE AFTER 18Z AND THROUGH THE
EARLY EVENING.
&&
.PREV DISCUSSION... /ISSUED 532 AM EST FRI DEC 1 2006/
SHORT TERM /TODAY THROUGH SUNDAY/...
PRIMARY LOW PRESSURE SYSTEM IS CURRENTLY OVER SOUTHERN ILLINOIS
WITH A SECONDARY LOW STARTING TO DEVELOP IN SOUTHERN INDIANA. THE
ENTIRE SYSTEM IS QUICKLY MOVING NORTH NORTHEAST. WARM SECTOR IS
SPREADING NORTH EARLY THIS MORNING. THEN STRONG COLD AIR ADVECTION
WILL OCCUR ON THE BACK SIDE OF THE LOW WHICH SHOULD RESULT IN
EXCELLENT MIXING WITH SOME WIND GUSTS UP TO 60 MPH PARTICULARLY
FROM MID MORNING THROUGH MID AFTERNOON. WIDESPREAD PRECIPITATION
WILL COME TO AN END THIS MORNING AS DRY SLOT MOVES IN. BUT SHOULD
STILL SEE SCATTERED RAIN AND SNOW SHOWERS DURING THE AFTERNOON AND
THEN DIMINISH BY EVENING.
HIGH PRESSURE THEN BUILDS INTO THE REGION WITH A REINFORCING PUSH
OF COLD AIR ON SUNDAY.
PREV DISCUSSION...
/ISSUED 342 PM EST THU NOV 30 2006/
LONG TERM /SUNDAY THROUGH THURSDAY/...
LONG WAVE TROUGH OVER EASTERN CONUS WILL PERSIST THROUGH THE PERIOD.
THIS WILL RESULT IN COOL AND MAINLY DRY WEATHER FOR ILN AREA. SUNDAY
WILL BE DRY WITH HIGH PRESSURE BUILDING IN FROM THE WEST. A SHORT
WAVE TROUGH WILL BRING THE CHANCE FOR SNOW SHOWERS TO OUR NORTHERN
COUNTIES SUNDAY NIGHT THROUGH TUESDAY. LAKE ENHANCEMENT MAY COME
INTO PLAY DURING THAT PERIOD. AFTER HIGH PRESSURE AND DRY AIR
OVERSPREADS THE AREA ON WEDNESDAY...A TROUGH OF LOW PRESSURE
TRAVELING NEAR THE GULF COAST MAY THROW SOME MOISTURE INTO THE OHIO
VALLEY IN THE FORM OF SNOW.
TEMPERATURES ARE FORECAST TO BE BELOW NORMAL. UNDERCUT HPC GUIDANCE
SUNDAY NIGHT WHEN AIRMASS IS PROGGED TO BE COLDEST...WITH 1000-850MB
THICKNESS OF 1236M INDICATED AT CVG.
&&
.ILN WATCHES/WARNINGS/ADVISORIES...
OH...HIGH WIND WARNING UNTIL 7 PM EST THIS EVENING FOR OHZ026-034-035-
042>046-051>056-060>065-074.
HIGH WIND WARNING UNTIL 6 PM EST THIS AFTERNOON FOR OHZ070>073-
077>082-088.
KY...HIGH WIND WARNING UNTIL 6 PM EST THIS AFTERNOON FOR KYZ089>100.
IN...HIGH WIND WARNING UNTIL 7 PM EST THIS EVENING FOR INZ050-058-059.
HIGH WIND WARNING UNTIL 6 PM EST THIS AFTERNOON FOR INZ066-073>075-
080.
&&HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WILMINGTON OH 453 AM EST FRI DEC 1 2006 INZ050-058-059-OHZ026-034-035-042>046-051>056-021000- WAYNE-FAYETTE IN-UNION IN-HARDIN-MERCER-AUGLAIZE-DARKE-SHELBY- LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON-FRANKLIN OH- LICKING- 453 AM EST FRI DEC 1 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL INDIANA...CENTRAL OHIO...MIAMI VALLEY OF OHIO AND WEST CENTRAL OHIO. .DAY ONE...TODAY AND TONIGHT STRONG LOW PRESSURE WILL DEVELOP AND MOVE ACROSS THE REGION THIS MORNING. A HIGH WIND WARNING IS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST THIS EVENING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED. INZ066-073>075-080-KYZ089>100-OHZ060>065-070>074-077>082-088- 021000- FRANKLIN IN-RIPLEY-DEARBORN-OHIO-SWITZERLAND-CARROLL-GALLATIN- BOONE-KENTON-CAMPBELL-OWEN-GRANT-PENDLETON-BRACKEN-ROBERTSON- MASON-LEWIS-PREBLE-MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY- FAIRFIELD-BUTLER-WARREN-CLINTON-ROSS-HOCKING-HAMILTON-CLERMONT- BROWN-HIGHLAND-ADAMS-PIKE-SCIOTO- 453 AM EST FRI DEC 1 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN KENTUCKY...CENTRAL OHIO... MIAMI VALLEY OF OHIO...SOUTH CENTRAL OHIO AND SOUTHWEST OHIO. .DAY ONE...TODAY AND TONIGHT STRONG LOW PRESSURE WILL DEVELOP AND MOVE ACROSS THE REGION THIS MORNING. A HIGH WIND WARNING IS IN EFFECT FROM 7 AM THIS MORNING TO 7 PM EST THIS EVENING. TORNADO WATCH 872 IS ALSO IN EFFECT UNTIL 10 AM EST THIS MORNING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 440 AM EST FRI DEC 1 2006 KYZ089>096-011045- GRANT KY-BOONE KY-CAMPBELL KY-KENTON KY-PENDLETON KY-GALLATIN KY- CARROLL KY-OWEN KY- 440 AM EST FRI DEC 1 2006 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT OWEN...CARROLL... GALLATIN...PENDLETON...KENTON...CAMPBELL...BOONE AND GRANT COUNTIES THROUGH 545 AM EST... AT 437 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM EASTERDAY TO 13 MILES SOUTH OF MONTEREY...MOVING NORTHEAST AT 40 MPH. THESE STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY THESE STORMS INCLUDE... WHEATLEY...GRATZ...SQUIRESVILLE...CARSON...MONTEREY...SANDERS... ETHRIDGE...NEW LIBERTY...SPARTA...OWENTON...BROMLEY AND LONG RIDGE. THESE STORMS WILL ALSO BE CAPABLE OF PRODUCING VERY HEAVY RAIN... WHICH MAY FLOOD ROADS...DITCHES AND LOW LYING AREAS. DO NOT DRIVE INTO PLACES WHERE WATER COVERS THE ROAD AND AVOID FLOOD PRONE AREAS.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WILMINGTON OH 713 AM EST FRI DEC 1 2006 OHZ046-055-056-011330- DELAWARE-FRANKLIN OH-LICKING- INCLUDING THE CITIES OF...DELAWARE...COLUMBUS...NEWARK 713 AM EST FRI DEC 1 2006 ...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL NOON... A LINE OF SHOWERS JUST WEST OF DELAWARE TO THE WEST SIDE OF COLUMBUS TO JUST TO THE WEST CHILLICOTHE. THIS LINE IS CAPABLE OF PRODUCING WIND GUSTS TO 55 MPH AND WILL AFFECT DELAWARE...COLUMBUS AND CIRCLEVILLE AND CHILLICOTHE BY 730 AM...AND NEWARK...LANCASTER AND LOGAN AROUND 8 AM. WINDS WILL WILL PICK UP LATER THIS MORNING WITH GUSTS 60 MPH BEING POSSIBLE THROUGH THIS EVENING. KYZ100-OHZ064-065-073-074-082-088-011330- LEWIS-PICKAWAY-FAIRFIELD-ROSS-HOCKING-PIKE-SCIOTO- INCLUDING THE CITIES OF...VANCEBURG...CIRCLEVILLE...LANCASTER... CHILLICOTHE...LOGAN...PIKETON...PORTSMOUTH 713 AM EST FRI DEC 1 2006 ...TORNADO WATCH IS IN EFFECT UNTIL 10 AM... A LINE OF SHOWERS JUST WEST OF CHILLICOTHE TO JUST WEST OF PORTSMOUTH. THIS LINE IS CAPABLE OF PRODUCING WIND GUSTS TO 55 MPH AND WILL AFFECT CHILLICOTHE...PIKETON AND PORTSMOUTH BY 730 AM. WINDS WILL WILL PICK UP LATER THIS MORNING WITH GUSTS 60 MPH BEING POSSIBLE THROUGH THIS EVENING. TIPTON
The national radar mosaic for the moment the first event began.
8 high wind. Local standard time, as filed.
Several trees and powerlines were blown down across the county. Roof damage occurred for a few structures.
Trees and powerlines were blown down countywide.
Large branches were downed on area roadways.
Trees and powerlines were blown down countywide.
Trees were blown down across a few roadways and into power lines.
Large branches were blown down across the county during the afternoon.
A number of trees were blown down in the afternoon.
A few trees and large limbs were blown down in the afternoon.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kentucky in 2006Every state in 2006This day in weather historyWarnings in Kentucky, December 2006
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: 8701, 8699, 8703, 8700, 8705, 8706, 8702, 8704.