Alert archive / Mississippi / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 166, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at May 9, 2021, 7:57 PM CDT for Clay County, Webster County, Mississippi. It was in force for 43 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
- May 9, 2021, 7:57 PM CDT (00:57 UTC)
- Expired
- May 9, 2021, 8:40 PM CDT
- In force
- 43 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clay County, MS, Webster County, MS
The radar
The Columbus AFB radar (KGWX), 51 km from the middle of the area, began a volume at 01:01 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 9, 7:29 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 1.0 hours before the alert went out and 173 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
- 762 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted.
800
WUUS54 KJAN 100057
SVRJAN
MSC025-155-100215-
/O.NEW.KJAN.SV.W.0166.210510T0057Z-210510T0215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jackson MS
757 PM CDT Sun May 9 2021
The National Weather Service in Jackson has issued a
* Severe Thunderstorm Warning for...
Eastern Webster County in north central Mississippi...
Clay County in northeastern Mississippi...
* Until 915 PM CDT.
* At 756 PM CDT, severe thunderstorms were located along a line
extending from 6 miles southwest of Okolona to 6 miles southeast of
Pyland, moving southeast at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Montpelier around 815 PM CDT.
Griffith and Pala Alto around 835 PM CDT.
West Point around 850 PM CDT.
Tibbee and Waverly around 900 PM CDT.
Other locations impacted by these severe thunderstorms include Mantee
and Walthall.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3355 8853 3351 8860 3351 8867 3357 8867
3357 8896 3356 8909 3353 8909 3352 8924
3372 8939 3372 8919 3376 8893 3381 8893
3381 8872 3368 8872 3368 8849 3365 8852
3362 8851 3360 8847 3356 8850 3353 8847
TIME...MOT...LOC 0056Z 311DEG 25KT 3393 8882 3381 8905
HAIL...0.75IN
WIND...60MPH
$$
191 follow-up statement
650
WWUS54 KJAN 100140
SVSJAN
Severe Weather Statement
National Weather Service Jackson MS
840 PM CDT Sun May 9 2021
MSC025-155-100150-
/O.CAN.KJAN.SV.W.0166.000000T0000Z-210510T0215Z/
Webster MS-Clay MS-
840 PM CDT Sun May 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN WEBSTER AND CLAY
COUNTIES IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
central, north central and northeastern Mississippi.
LAT...LON 3355 8853 3351 8860 3351 8867 3357 8867
3357 8896 3356 8909 3353 8909 3352 8924
3372 8939 3372 8919 3376 8893 3381 8893
3381 8872 3368 8872 3368 8849 3365 8852
3362 8851 3360 8847 3356 8850 3353 8847
TIME...MOT...LOC 0138Z 311DEG 25KT 3374 8855 3362 8878
$$
19The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:32 PM CDT | Severe Thunderstorm Warning | JAN | Bolivar, Sunflower | 73 min |
| May 9, 8:21 PM CDT | Severe Thunderstorm Warning | JAN | Lowndes | 28 min |
| May 9, 8:55 PM CDT | Special Weather Statement | JAN | Issaquena | 35 min |
| May 9, 9:06 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena, Sharkey, Washington | 39 min |
| May 9, 9:36 PM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 37 min |
| May 9, 9:45 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena, Sharkey | 60 min |
| May 9, 10:12 PM CDT | Severe Thunderstorm Warning | JAN | Warren, Yazoo | 62 min |
| May 9, 10:16 PM CDT | Severe Thunderstorm Warning | JAN | Holmes, Humphreys, Yazoo | 35 min |
| May 9, 10:24 PM CDT | Flash Flood Warning | JAN | Holmes, Humphreys, Sharkey, Yazoo | 86 min |
| May 9, 10:34 PM CDT | Flash Flood Warning | JAN | Carroll, Choctaw, Clay, Lowndes, Montgomery, Oktibbeha and 1 more | 78 min |
| May 9, 10:38 PM CDT | Severe Thunderstorm Warning | JAN | Hinds, Madison, Rankin | 82 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2021Every severe thunderstorm warning 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.