Alert archive / Mississippi / Special Weather Statements in 2021
Special Weather Statement, NWS Jackson, MS
NWS Jackson, MS issued this special weather statement at Jul 18, 2021, 4:13 PM CDT for Montgomery County, Mississippi. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 18, 2021, 4:13 PM CDT (21:13 UTC)
- Expired
- Jul 18, 2021, 5:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Jackson, MS
County Montgomery County, MS
The radar
The Columbus AFB radar (KGWX), 121 km from the middle of the area, began a volume at 21:14 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, 9.2 hours before the alert went out and 139 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
- 505 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 870 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
814
WWUS84 KJAN 182113
SPSJAN
Special Weather Statement
National Weather Service Jackson MS
413 PM CDT Sun Jul 18 2021
MSZ028-029-032-182200-
Montgomery MS-Choctaw MS-Webster MS-
413 PM CDT Sun Jul 18 2021
...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN CHOCTAW...
SOUTHWESTERN WEBSTER AND MONTGOMERY COUNTIES UNTIL 500 PM CDT...
At 413 PM CDT, Meteorologists were tracking a strong thunderstorm
near Winona, moving east at 25 mph.
Winds in excess of 40 mph will be possible with this storm.
This strong thunderstorm will be near...
Kilmichael and Sweatman around 425 PM CDT.
Lodi around 435 PM CDT.
Embry around 455 PM CDT.
Bellefontaine around 500 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
High winds can bring down trees and large limbs resulting in serious
injury or property damage. Exercise extreme caution when outdoors
during such strong winds...and be especially aware of older trees.
&&
LAT...LON 3368 8930 3336 8929 3335 8945 3340 8963
3340 8971 3342 8972 3342 8975 3368 8972
TIME...MOT...LOC 2113Z 264DEG 23KT 3352 8967
$$
CMEThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 7:06 AM CDT | Dense Fog Advisory | JAN | Covington, Forrest, Jefferson Davis, Jones, Lamar, Marion | 114 min |
| Jul 18, 8:07 AM CDT | River Flood Warning | JAN | Madison, Yazoo | 6 days |
| Jul 18, 11:50 AM CDT | Special Weather Statement | JAN | Neshoba, Newton | 40 min |
| Jul 18, 1:04 PM CDT | Special Weather Statement | JAN | Bolivar | 56 min |
| Jul 18, 1:57 PM CDT | Special Weather Statement | JAN | Humphreys | 48 min |
| Jul 18, 2:00 PM CDT | Special Weather Statement | JAN | Sunflower | 45 min |
| Jul 18, 2:16 PM CDT | Special Weather Statement | JAN | Leflore, Sunflower | 29 min |
| Jul 18, 2:54 PM CDT | Special Weather Statement | JAN | Carroll, Leflore | 51 min |
| Jul 18, 3:22 PM CDT | Special Weather Statement | JAN | Issaquena | 38 min |
| Jul 18, 4:47 PM CDT | Special Weather Statement | JAN | Leake | 43 min |
| Jul 18, 6:36 PM CDT | Special Weather Statement | JAN | Neshoba | 24 min |
| Jul 18, 6:38 PM CDT | Special Weather Statement | JAN | Scott | 52 min |
| Jul 18, 2:24 PM CDT | Special Weather Statement | JAN | West Carroll | 51 min |
Nearby
Special Weather Statements in Mississippi, 2021Every special weather statement 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; radar from the NEXRAD Level II archive.