Alert archive / Mississippi / Special Weather Statements in 2012
Special Weather Statement, NWS Jackson, MS
NWS Jackson, MS issued this special weather statement at May 21, 2012, 7:21 PM CDT for Madison County, Mississippi. It was in force for 19 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 21, 2012, 7:21 PM CDT (00:21 UTC)
- Expired
- May 21, 2012, 7:40 PM CDT
- In force
- 19 min
- Issued by
- NWS Jackson, MS
County Madison County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 43 km from the middle of the area, began a volume at 00:21 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 00:00Z, 0.4 hours before the alert went out and 37 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
- 1043 J/kg
- Mixed-layer CIN
- -121 J/kg
- Mixed-layer LCL
- 1456 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
298
WWUS84 KJAN 220021
SPSJAN
MSZ042-043-220040-
MADISON MS-YAZOO MS-
721 PM CDT MON MAY 21 2012
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
721 PM CDT MON MAY 21 2012
...STRONG THUNDERSTORM MOVING FROM YAZOO INTO MADISON COUNTY...
A STRONG THUNDERSTORM CAPABLE OF PRODUCING PENNY TO NICKEL SIZE HAIL
AND 40 TO 50 MPH WINDS WAS LOCATED 3 MILES EAST OF MYRLEVILLE AT 720
PM CDT...MOVING SOUTHEAST AT 20 MPH.
HEAVY RAIN ALONG WITH DANGEROUS CLOUD TO GROUND LIGHTNING ARE ALSO
LIKELY WITH THIS STORM.
PEOPLE IN EAST CENTRAL YAZOO AND CENTRAL MADISON COUNTIES SHOULD
MONITOR THIS STORM CLOSELY.
LAT...LON 3269 8984 3252 9003 3253 9030 3270 9035
3281 9018
TIME...MOT...LOC 0020Z 323DEG 17KT 3268 9020
$$
EECThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 7:12 PM CDT | Severe Thunderstorm Warning | JAN | Clarke, Lauderdale | 25 min |
| May 21, 7:36 PM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 39 min |
| May 21, 8:00 PM CDT | Special Weather Statement | JAN | Madison | 20 min |
| May 21, 8:03 PM CDT | Special Weather Statement | JAN | Holmes | 22 min |
| May 21, 8:22 PM CDT | Special Weather Statement | JAN | Holmes | 28 min |
| May 21, 8:35 PM CDT | Special Weather Statement | JAN | Holmes | 30 min |
| May 21, 8:47 PM CDT | Severe Thunderstorm Warning | JAN | Holmes | 43 min |
| May 21, 9:14 PM CDT | Special Weather Statement | JAN | Adams | 31 min |
| May 21, 9:32 PM CDT | Special Weather Statement | JAN | Madison | 33 min |
| May 21, 9:35 PM CDT | Special Weather Statement | JAN | Holmes | 30 min |
| May 21, 9:36 PM CDT | Severe Thunderstorm Warning | JAN | Holmes | 39 min |
| May 21, 9:49 PM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 56 min |
| May 21, 10:21 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 32 min |
| May 21, 10:22 PM CDT | Special Weather Statement | JAN | Lowndes | 18 min |
| May 21, 7:09 PM CDT | Severe Thunderstorm Warning | JAN | Franklin, Madison, Richland | 36 min |
| May 21, 7:31 PM CDT | Severe Thunderstorm Warning | JAN | Franklin, Madison, Richland, Tensas | 44 min |
| May 21, 7:59 PM CDT | Severe Thunderstorm Warning | JAN | Franklin, Tensas | 46 min |
| May 21, 8:27 PM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Franklin, Tensas | 48 min |
| May 21, 8:51 PM CDT | Severe Thunderstorm Warning | JAN | Catahoula, Concordia, Tensas | 39 min |
Nearby
Special Weather Statements in Mississippi, 2012Every special weather statement in 2012
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.