Dense Fog in Oklahoma, January 12, 2001

Name: Dense Fog in Oklahoma, January 12, 2001
Start: 2001-01-12T05:00
End: 2001-01-12T14:00
Location: Oklahoma

January 12, 2001 · NWS OUN · 38 events in 38 counties and zones

Dense fog, with visibilities reduced to less than one quarter of a mile, developed across much of southern and central Oklahoma during the early morning of the 12th, and lasted through the early afternoon.

Where it happened

Every event with a place to put it; 38 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

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 38

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 OUN wrote it up.

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 Norman, OK wrote its last area forecast discussion before the first event at Jan 11, 2:40 PM CST, 14 hours 20 minutes earlier.

Area forecast discussion, Jan 11, 2:40 PM CST, 14 hours 20 minutes before

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The radar

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

Open the radar archive at this moment

Event by event

38 dense fog. Local standard time, as filed.

Dense Fog, Kay

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Kay forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 36.818, -97.144 (the zone’s center; the record gives no point)

Dense Fog, Beckham

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Beckham forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.269, -99.682 (the zone’s center; the record gives no point)

Dense Fog, Blaine

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Blaine forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.875, -98.433 (the zone’s center; the record gives no point)

Dense Fog, Caddo

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Caddo forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.174, -98.375 (the zone’s center; the record gives no point)

Dense Fog, Canadian

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Canadian forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.542, -97.982 (the zone’s center; the record gives no point)

Dense Fog, Carter

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Carter forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.251, -97.286 (the zone’s center; the record gives no point)

Dense Fog, Cleveland

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Cleveland forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.203, -97.326 (the zone’s center; the record gives no point)

Dense Fog, Coal

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Coal forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.588, -96.298 (the zone’s center; the record gives no point)

Dense Fog, Comanche

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Comanche forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.662, -98.472 (the zone’s center; the record gives no point)

Dense Fog, Cotton

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Cotton forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.290, -98.372 (the zone’s center; the record gives no point)

Dense Fog, Custer

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Custer forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.639, -99.001 (the zone’s center; the record gives no point)

Dense Fog, Dewey

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Dewey forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.988, -99.008 (the zone’s center; the record gives no point)

Dense Fog, Garfield

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Garfield forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 36.379, -97.783 (the zone’s center; the record gives no point)

Dense Fog, Garvin

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Garvin forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.705, -97.309 (the zone’s center; the record gives no point)

Dense Fog, Grady

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Grady forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.017, -97.884 (the zone’s center; the record gives no point)

Dense Fog, Greer

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Greer forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.936, -99.561 (the zone’s center; the record gives no point)

Dense Fog, Harmon

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Harmon forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.744, -99.846 (the zone’s center; the record gives no point)

Dense Fog, Hughes

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Hughes forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.048, -96.250 (the zone’s center; the record gives no point)

Dense Fog, Jackson

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Jackson forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.588, -99.415 (the zone’s center; the record gives no point)

Dense Fog, Jefferson

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Jefferson forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.111, -97.836 (the zone’s center; the record gives no point)

Dense Fog, Johnston

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Johnston forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.317, -96.661 (the zone’s center; the record gives no point)

Dense Fog, Kingfisher

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Kingfisher forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.945, -97.942 (the zone’s center; the record gives no point)

Dense Fog, Kiowa

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Kiowa forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.916, -98.981 (the zone’s center; the record gives no point)

Dense Fog, Lincoln

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Lincoln forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.703, -96.881 (the zone’s center; the record gives no point)

Dense Fog, Logan

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Logan forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.919, -97.443 (the zone’s center; the record gives no point)

Dense Fog, Love

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Love forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 33.950, -97.244 (the zone’s center; the record gives no point)

Dense Fog, Marshall

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Marshall forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.025, -96.769 (the zone’s center; the record gives no point)

Dense Fog, McClain

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: McClain forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.009, -97.444 (the zone’s center; the record gives no point)

Dense Fog, Murray

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Murray forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.482, -97.068 (the zone’s center; the record gives no point)

Dense Fog, Noble

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Noble forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 36.389, -97.230 (the zone’s center; the record gives no point)

Dense Fog, Oklahoma

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Oklahoma forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.552, -97.407 (the zone’s center; the record gives no point)

Dense Fog, Payne

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Payne forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 36.077, -96.976 (the zone’s center; the record gives no point)

Dense Fog, Pontotoc

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Pontotoc forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.728, -96.684 (the zone’s center; the record gives no point)

Dense Fog, Pottawatomie

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Pottawatomie forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.207, -96.948 (the zone’s center; the record gives no point)

Dense Fog, Seminole

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Seminole forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.168, -96.615 (the zone’s center; the record gives no point)

Dense Fog, Stephens

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Stephens forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.486, -97.851 (the zone’s center; the record gives no point)

Dense Fog, Tillman

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Tillman forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 34.373, -98.924 (the zone’s center; the record gives no point)

Dense Fog, Washita

When: January 12, 5:00 AM CST to 2:00 PM CST
Where: Washita forecast zone
Reported by: LAW ENFORCEMENT
Coordinates: 35.290, -98.992 (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 Oklahoma in 2001 Every state in 2001 This day in weather history Warnings in Oklahoma, January 2001

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 2026-09-30. Each event’s entry at NCEI: 5229140, 5229141, 5229142, 5229143, 5229144, 5229145, 5229146, 5229147, 5229148, 5229149, 5229150, 5229151, 5229152, 5229153, 5229154, 5229155, 5229156, 5229157, 5229158, 5229159, 5229160, 5229161, 5229162, 5229163, 5229164, 5229165, 5229166, 5229167, 5229168, 5229169, 5229170, 5229171, 5229273, 5229274, 5229275, 5229276, 5229277, 5229278.