Alert archive / Mississippi / Special Weather Statements in 2021
Special Weather Statement, NWS Jackson, MS
NWS Jackson, MS issued this special weather statement at Sep 21, 2021, 3:22 PM CDT for Carroll County, Mississippi. It was in force for 38 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
- Sep 21, 2021, 3:22 PM CDT (20:22 UTC)
- Expired
- Sep 21, 2021, 4:00 PM CDT
- In force
- 38 min
- Issued by
- NWS Jackson, MS
- Hail
- 0.25 in
- Wind
- 30
County Carroll County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 125 km from the middle of the area, began a volume at 20:25 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, 8.4 hours before the alert went out and 121 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
- 1083 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 723 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- -14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Sep 21, 12:37 PM CDT, 2 hours 45 minutes earlier.
Area forecast discussion, Sep 21, 12:37 PM CDT, 2 hours 45 minutes before
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Special weather statement, Sep 21, 10:47 AM CDT, 4 hours 35 minutes before
Special Weather Statement
National Weather Service Jackson MS
1047 AM CDT Tue Sep 21 2021
ARZ075-MSZ034-211615-
Chicot AR-Washington MS-
1047 AM CDT Tue Sep 21 2021
...A strong thunderstorm will impact portions of northeastern Chicot
and northwestern Washington Counties through 1115 AM CDT...
At 1047 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles east of Mcmillan Corner, or 8 miles west of Greenville, moving
southeast at 20 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Greenville, Lake Village and Mcmillan Corner.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3340 9132 3353 9118 3340 9096 3322 9116
TIME...MOT...LOC 1547Z 313DEG 16KT 3341 9119
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
ECSpecial weather statement, Sep 21, 2:41 PM CDT, 41 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 |
|---|---|---|---|---|
| Sep 21, 4:50 PM CDT | Special Weather Statement | JAN | Leake, Neshoba | 55 min |
| Sep 21, 5:54 PM CDT | Special Weather Statement | JAN | Jasper | 51 min |
| Sep 21, 6:10 PM CDT | Special Weather Statement | JAN | Simpson | 50 min |
| Sep 21, 10:47 AM CDT | Special Weather Statement | JAN | Chicot | 28 min |
| Sep 21, 2:41 PM CDT | Special Weather Statement | JAN | Ashley, Chicot | 49 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.