Illinois, 2000

Dense Fog in Illinois, May 2, 2000

May 2, 2000 · NWS DVN · 11 events in 11 counties and zones

Clearing skies, light winds and a damp ground led to the formation of dense fog over the region. No injuries were reported.

Where it happened

Every event with a place to put it; 11 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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
11

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 DVN wrote it up.

Clearing skies, light winds and a damp ground led to the formation of dense fog over the region. No injuries were reported.

The radar

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

Open the radar archive at this moment

Event by event

11 dense fog. Local standard time, as filed.

Dense Fog, Bureau

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Bureau forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.404, -89.529 (the zone’s center; the record gives no point)

Dense Fog, Carroll

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Carroll forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
42.069, -89.934 (the zone’s center; the record gives no point)

Dense Fog, Hancock

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Hancock forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.404, -91.165 (the zone’s center; the record gives no point)

Dense Fog, Henderson

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Henderson forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.818, -90.925 (the zone’s center; the record gives no point)

Dense Fog, Henry

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Henry forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.353, -90.131 (the zone’s center; the record gives no point)

Dense Fog, McDonough

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
McDonough forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.456, -90.678 (the zone’s center; the record gives no point)

Dense Fog, Mercer

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Mercer forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.205, -90.741 (the zone’s center; the record gives no point)

Dense Fog, Putnam

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Putnam forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.205, -89.286 (the zone’s center; the record gives no point)

Dense Fog, Rock Island

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Rock Island forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.467, -90.567 (the zone’s center; the record gives no point)

Dense Fog, Warren

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Warren forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.849, -90.615 (the zone’s center; the record gives no point)

Dense Fog, Whiteside

When
May 2, 1:00 AM CST to 9:00 AM CST
Where
Whiteside forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.756, -89.914 (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

More

Every storm in Illinois in 2000Every state in 2000This day in weather historyWarnings in Illinois, May 2000

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: 5146556, 5146557, 5146558, 5146559, 5146560, 5146561, 5146562, 5146563, 5146564, 5146565, 5146566.