Dense Fog in Kentucky, November 22, 2012

Name: Dense Fog in Kentucky, November 22, 2012
Start: 2012-11-22T04:00
End: 2012-11-22T07:00
Location: Kentucky

November 22, 2012 · NWS PAH · 10 events in 10 counties and zones

Widespread dense fog blanketed the Ohio and Mississippi River counties of western Kentucky. Visibility was one-quarter mile or less.

Where it happened

Every event with a place to put it; 10 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 10

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 happened

The episode as NWS PAH wrote it up.

Widespread dense fog blanketed the Ohio and Mississippi River counties of western Kentucky. Visibility was one-quarter mile or less. High pressure over the central Appalachian Mountains produced a light south wind flow of moist air, which contributed to the dense fog.

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 Paducah, KY wrote its last area forecast discussion before the first event at Nov 22, 3:06 AM CST, 54 minutes earlier.

Area forecast discussion, Nov 22, 3:06 AM CST, 54 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
306 AM CST THU NOV 22 2012

.SHORT TERM...(TODAY THROUGH SATURDAY NIGHT)
ISSUED AT 305 AM CST THU NOV 22 2012

WE WILL MAKE LAST MINUTE ADJUSTMENTS TO THE FOG FORECAST AND
ADVISORY BASED ON LATEST CONDITIONS. OTHERWISE HIGH CLOUDS WILL
GRADUALLY INCREASE THROUGH THE DAY. TEMPERATURES WILL BE QUITE MILD
FOR ONE MORE DAY. ENERGY SEEN MOVING ACROSS THE NORTHERN ROCKIES ON
WVAPOR EARLY THIS MORNING WILL DIG SOUTHEAST THROUGH THE DAY AND
INTO TONIGHT. IT WILL CUT OUT A SHARP MID LEVEL TROF AND EVENTUALLY
CLOSE OFF ACROSS THE UPPER MIDWEST AND GREAT LAKES REGIONS TONIGHT
INTO FRIDAY. AT THE SURFACE...A FRONTAL BOUNDARY WILL MOVE ACROSS
THE REGION TONIGHT. EXPECT SHOWERS WITH THE PASSAGE OF THE FRONT
TONIGHT. MIGHT BE JUST ENOUGH ELEVATED INSTABILITY TO SEE SOME
LIGHTNING APPROACHING SOUTHEAST MISSOURI INTO SOUTHWEST
ILLINOIS...AND POINTS WEST OF THERE. BUT FOR NOW WILL GO WITH
SHOWERS. MOISTURE WILL SWEEP EAST OF THE REGION RAPIDLY VERY EARLY
FRIDAY MORNING. FRIDAY WILL ESSENTIALLY BE A DRY AND COOLER DAY.
IT WILL REMAIN QUITE COOL FRIDAY NIGHT THROUGH SATURDAY NIGHT AS
A LARGE AREA OF HIGH PRESSURE MOVING IN FROM THE NORTHWEST
EVENTUALLY SETTLES ACROSS THE AREA.

.LONG TERM...(SUNDAY THROUGH WEDNESDAY)
ISSUED AT 305 AM CST THU NOV 22 2012

THE LATTER PART OF THE WEEKEND WILL CONTINUE TO BE DRY...WITH A
SWRLY LOW LEVEL FLOW STARTING UP AS SFC HIGH PRESSURE MOVES OFF TO
THE ERN SEABOARD. SUNDAY NIGHT...ISENTROPIC LIFT AHEAD OF A SFC WAVE
OVER NRN TX/OK AND A WARM FRONT MAY BE ABLE TO TAP ENOUGH MOISTURE
FOR SOME MEASURABLE RAINFALL IN WRN KY/SERN MO. AT THIS TIME
FRAME...THE GEM/GFS/ECMWF OPERATIONAL MODELS WERE IN DECENT
AGREEMENT WITH THE POSITION OF THE WAVE.

AFTER SUNDAY NIGHT...THE MED RANGE MODELS...WHICH HAVE NOT BEEN VERY
CONSISTENT...TENDED TO DIVERGE...WITH THE ECMWF HAVING THE MOST
TENDENCY TO KEEP THIS SFC FEATURE FARTHEST SOUTH AND THE GEM MUCH
FARTHER NORTH /WITH A RATHER DEEP MID LEVEL LOW OVER THE CENTRAL
CONUS/. UNCERTAINTY WITH THE TRACK OF THIS LOW PRESSURE WAVE WILL
HAVE A SIGNIFICANT EFFECT ON TEMPS ON TUE...ALONG WITH THUNDER
CHANCES MON/MON NIGHT/EARLY TUE. IT ALL DEPENDS ON THE SHARPNESS OF
MID LEVEL SHRTWV ENERGY MOVING THROUGH THE CENTRAL CONUS. AT LEAST
ISOLD THUNDER WILL BE POSSIBLE WITH THE 00Z GFS SCENARIO...WHICH
BRINGS A WELL-DEFINED SFC LOW RIGHT OVER THE PAH FORECAST AREA BY
12Z TUE. THE INITIALIZATION BLEND SUPPLIED AMPLE POPS ON MON AND
ESPECIALLY MON NIGHT...WITH COLD FROPA EXPECTED AROUND SUNRISE
TUE...WHICH RESEMBLED THE 00Z GFS SOLUTION SOMEWHAT. ATTM...THIS
SEEMED TO BE THE WAY TO GO.

ONCE THE LOW LEVEL WINDS TURN TO THE NW AND INCREASE TUE...MAKING
FOR A BRISK AFTERNOON/EVENING...ESPECIALLY IN THE NW...CHANCES OF
RAIN WILL RAPIDLY DECREASE...AND CLEARING OF SKIES IS EXPECTED TUE
NIGHT. LOWS SHOULD DIP BELOW FREEZING BY SUNRISE WED MORNING AS
ANOTHER DRY COOL DOME OF HIGH PRESSURE MOVES IN. AT LEAST THE MED
RANGE MODELS GENERALLY AGREE ON THE SYNOPTIC PATTERN ALOFT.

&&

.AVIATION...(FOR THE 06Z TAFS THROUGH 06Z THURSDAY NIGHT)
ISSUED AT 1040 PM CST WED NOV 21 2012

FOG IS AGAIN A CONCERN TONIGHT WITH PATCHES IFR POSSIBLE IN
OTHERWISE PREVALENT MVFR. IT SHOULD BURN OFF AT TAF SITES BY 15Z
AS SLYS DEVELOP. MID AND HIGH COVER INCREASES LATE TMRW IN ADVANCE
OF AN APPROACHING WEATHER FRONT.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
IL...DENSE FOG ADVISORY UNTIL 7 AM CST THIS MORNING FOR ILZ076>078-
     081>083-085>094.

MO...DENSE FOG ADVISORY UNTIL 7 AM CST THIS MORNING FOR MOZ087-
     109>112-114.

IN...DENSE FOG ADVISORY UNTIL 7 AM CST THIS MORNING FOR INZ081-085.

KY...DENSE FOG ADVISORY UNTIL 7 AM CST THIS MORNING FOR KYZ001>005-
     007-010-014.

&&

Hazardous weather outlook, Nov 22, 3:12 AM CST, 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PADUCAH KY
312 AM CST THU NOV 22 2012

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-231100-
JEFFERSON-WAYNE IL-EDWARDS-WABASH-PERRY IL-FRANKLIN-HAMILTON-
WHITE-JACKSON-WILLIAMSON-SALINE-GALLATIN-UNION IL-JOHNSON-POPE-
HARDIN-ALEXANDER-PULASKI-MASSAC-GIBSON-PIKE-POSEY-VANDERBURGH-
WARRICK-SPENCER-FULTON-HICKMAN-CARLISLE-BALLARD-MCCRACKEN-GRAVES-
LIVINGSTON-MARSHALL-CALLOWAY-CRITTENDEN-LYON-TRIGG-CALDWELL-
UNION KY-WEBSTER-HOPKINS-CHRISTIAN-HENDERSON-DAVIESS-MCLEAN-
MUHLENBERG-TODD-PERRY MO-BOLLINGER-CAPE GIRARDEAU-WAYNE MO-CARTER-
RIPLEY-BUTLER-STODDARD-SCOTT-MISSISSIPPI-NEW MADRID-
312 AM CST THU NOV 22 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN
ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST
MISSOURI.

.DAY ONE...TODAY AND TONIGHT

A DENSE FOG ADVISORY IS IN EFFECT FOR PORTIONS OF THE FOUR STATE
REGION THROUGH 7 AM.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE IS A CHANCE OF THUNDERSTORMS MONDAY THROUGH TUESDAY OF NEXT
WEEK. A FEW STRONG STORMS CANNOT BE RULED OUT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

10 dense fog. Local standard time, as filed.

Dense Fog, Ballard

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Ballard forecast zone
Reported by: AWOS
Coordinates: 37.058, -88.999 (the zone’s center; the record gives no point)

Dense Fog, Carlisle

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Carlisle forecast zone
Reported by: AWOS
Coordinates: 36.853, -88.971 (the zone’s center; the record gives no point)

Dense Fog, Hickman

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Hickman forecast zone
Reported by: AWOS
Coordinates: 36.678, -88.976 (the zone’s center; the record gives no point)

Dense Fog, Fulton

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Fulton forecast zone
Reported by: AWOS
Coordinates: 36.554, -89.188 (the zone’s center; the record gives no point)

Dense Fog, Daviess

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Daviess forecast zone
Reported by: AWOS
Coordinates: 37.732, -87.087 (the zone’s center; the record gives no point)

Dense Fog, Henderson

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Henderson forecast zone
Reported by: AWOS
Coordinates: 37.796, -87.573 (the zone’s center; the record gives no point)

Dense Fog, Union

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Union forecast zone
Reported by: AWOS
Coordinates: 37.659, -87.945 (the zone’s center; the record gives no point)

Dense Fog, Crittenden

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Crittenden forecast zone
Reported by: AWOS
Coordinates: 37.353, -88.097 (the zone’s center; the record gives no point)

Dense Fog, Livingston

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: Livingston forecast zone
Reported by: AWOS
Coordinates: 37.210, -88.354 (the zone’s center; the record gives no point)

Dense Fog, McCracken

When: November 22, 4:00 AM CST to 7:00 AM CST
Where: McCracken forecast zone
Reported by: AWOS
Coordinates: 37.054, -88.713 (the zone’s center; the record gives no point)

What these are

Dense Fog: Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Kentucky in 2012 Every state in 2012 This day in weather history Warnings in Kentucky, November 2012

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: 420310, 420311, 420312, 420313, 420314, 420315, 420316, 420317, 420318, 420319.