Alert archive / Mississippi / Dense Fog Advisories in 2021
Dense Fog Advisory 2, NWS Jackson, MS
NWS Jackson, MS issued this dense fog advisory at Feb 25, 2021, 2:56 PM CST for Forrest County, Lamar County, Marion County, Mississippi. It took effect at Feb 26, 2021, 12:00 AM CST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Feb 25, 2021, 2:56 PM CST (20:56 UTC)
- In effect from
- Feb 26, 2021, 12:00 AM CST
- Expired
- Feb 26, 2021, 9:00 AM CST
- In force
- 9 hr
- Issued by
- NWS Jackson, MS
Counties Forrest County, MS, Lamar County, MS, Marion County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.9 hours before the alert went out and 108 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.
- Mixed-layer CAPE
- 23 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 517 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this dense fog advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jackson, MS wrote its last area forecast discussion before this dense fog advisory went out at Feb 25, 11:41 AM CST, 3 hours 15 minutes earlier.
Area forecast discussion, Feb 25, 11:41 AM CST, 3 hours 15 minutes before
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</html>The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 9:08 AM CST | River Flood Warning | JAN | Attala, Holmes | 10 days |
Nearby
Dense Fog Advisories in Mississippi, 2021Every dense fog advisory in 2021
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.