Alert archive / Mississippi / Wind Advisories in 2020
Wind Advisory 9, NWS Jackson, MS
NWS Jackson, MS issued this wind advisory at Oct 28, 2020, 4:01 PM CDT for 7 counties in Mississippi. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Oct 28, 2020, 4:01 PM CDT (21:01 UTC)
- Expired
- Oct 29, 2020, 4:00 AM CDT
- In force
- 12 hr
- Issued by
- NWS Jackson, MS
Counties Covington County, MS, Jasper County, MS, Jefferson Davis County, MS, Kemper County, MS, Lawrence County, MS, Newton County, MS, Smith County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 63 km from the middle of the area, began a volume at 21:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 9.0 hours before the alert went out and 73 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
- 413 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 513 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 188 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
469 WWUS74 KJAN 282101 NPWJAN URGENT - WEATHER MESSAGE National Weather Service Jackson MS 401 PM CDT Wed Oct 28 2020 MSZ046-051-056-057-063>065-290500- /O.NEW.KJAN.WI.Y.0009.201028T2101Z-201029T0900Z/ Kemper-Newton-Smith-Jasper-Lawrence-Jefferson Davis-Covington- Including the cities of De Kalb, Scooba, Newton, Union, Decatur, Conehatta, Taylorsville, Raleigh, Bay Springs, Heidelberg, Monticello, New Hebron, Prentiss, Bassfield, Collins, and Mount Olive 401 PM CDT Wed Oct 28 2020 ...WIND ADVISORY IN EFFECT UNTIL 4 AM CDT THURSDAY... * WHAT...Sustained winds around 25 mph with gusts up to 40 mph expected. * WHERE...Kemper, Newton, Smith, Jasper, Lawrence, Jefferson Davis and Covington Counties. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ 19
1 follow-up statement
924 WWUS74 KJAN 290248 NPWJAN URGENT - WEATHER MESSAGE National Weather Service Jackson MS 948 PM CDT Wed Oct 28 2020 MSZ063-064-290400- /O.CAN.KJAN.WI.Y.0009.000000T0000Z-201029T0900Z/ Lawrence-Jefferson Davis- Including the cities of Monticello, New Hebron, Prentiss, and Bassfield 948 PM CDT Wed Oct 28 2020 ...WIND ADVISORY IS CANCELLED... $$ MSZ046-051-056-057-065-290900- /O.CON.KJAN.WI.Y.0009.000000T0000Z-201029T0900Z/ Kemper-Newton-Smith-Jasper-Covington- Including the cities of De Kalb, Scooba, Newton, Union, Decatur, Conehatta, Taylorsville, Raleigh, Bay Springs, Heidelberg, Collins, and Mount Olive 948 PM CDT Wed Oct 28 2020 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM CDT THURSDAY... * WHAT...Sustained winds around 25 mph with gusts up to 40 mph expected. * WHERE...Kemper, Newton, Smith, Jasper, Lawrence, Jefferson Davis and Covington Counties. * WHEN...Until 4 AM CDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ GG
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 28, 9:48 AM CDT | River Flood Warning | JAN | Jones | 12 hr |
| Oct 28, 6:00 PM CDT | Tornado Warning | JAN | Lowndes, Noxubee | 45 min |
Nearby
Wind Advisories in Mississippi, 2020Every wind advisory in 2020
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; radar from the NEXRAD Level II archive.