Alert archive / Mississippi / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 421, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jul 7, 2012, 4:15 PM CDT for 4 counties in Mississippi. It was in force for 30 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 7, 2012, 4:15 PM CDT (21:15 UTC)
- Expired
- Jul 7, 2012, 4:45 PM CDT
- In force
- 30 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
Counties Copiah County, MS, Franklin County, MS, Jefferson County, MS, Lincoln County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 104 km from the middle of the area, began a volume at 21:15 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, 9.3 hours before the alert went out and 102 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
- 814 J/kg
- Mixed-layer CIN
- -92 J/kg
- Mixed-layer LCL
- 1081 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
027 WUUS54 KJAN 072115 SVRJAN MSC029-037-063-085-072145- /O.NEW.KJAN.SV.W.0421.120707T2115Z-120707T2145Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 415 PM CDT SAT JUL 7 2012 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN COPIAH COUNTY IN CENTRAL MISSISSIPPI... NORTHWESTERN LINCOLN COUNTY IN SOUTH CENTRAL MISSISSIPPI... NORTHEASTERN FRANKLIN COUNTY IN SOUTHWEST MISSISSIPPI... SOUTHEASTERN JEFFERSON COUNTY IN SOUTHWEST MISSISSIPPI... * UNTIL 445 PM CDT * AT 415 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CASEYVILLE MOVING WEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MCCALL CREEK BY 440 PM CDT... UNION CHURCH...PLEASANT HILL...MCBRIDE AND NEW HOPE BY 445 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES COULD OCCUR. && LAT...LON 3144 9084 3179 9095 3176 9056 3157 9054 TIME...MOT...LOC 2115Z 084DEG 9KT 3166 9065 $$ MRM
1 follow-up statement
606 WWUS54 KJAN 072128 SVSJAN SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 428 PM CDT SAT JUL 7 2012 MSC029-037-063-085-072145- /O.CON.KJAN.SV.W.0421.000000T0000Z-120707T2145Z/ LINCOLN MS-JEFFERSON MS-FRANKLIN MS-COPIAH MS- 428 PM CDT SAT JUL 7 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR SOUTHWESTERN COPIAH...NORTHEASTERN FRANKLIN...SOUTHEASTERN JEFFERSON AND NORTHWESTERN LINCOLN COUNTIES... AT 428 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CASEYVILLE MOVING WEST AT 10 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... PLEASANT HILL BY 435 PM CDT... UNION CHURCH...MCBRIDE...NEW HOPE AND BLUE HILL BY 445 PM CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... WINDS OF 60 MPH CAN BRING DOWN TREES...POSSIBLY RESULTING IN INJURY AND PROPERTY DAMAGE. ROOFS OF MOBILE HOMES AND OUTBUILDINGS COULD BE DAMAGED...AND MINOR ROOF DAMAGE TO WELL BUILT HOMES AND STRUCTURES COULD OCCUR. && LAT...LON 3155 9059 3144 9084 3179 9095 3176 9061 TIME...MOT...LOC 2128Z 084DEG 9KT 3166 9071 $$ MRM
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 7:24 PM CDT | Special Weather Statement | JAN | Neshoba | 31 min |
| Jul 6, 7:49 PM CDT | Special Weather Statement | JAN | Neshoba | 31 min |
| Jul 6, 8:24 PM CDT | Special Weather Statement | JAN | Neshoba | 31 min |
| Jul 6, 8:36 PM CDT | Special Weather Statement | JAN | Lauderdale | 29 min |
| Jul 6, 8:38 PM CDT | Special Weather Statement | JAN | Lauderdale | 42 min |
| Jul 6, 8:39 PM CDT | Special Weather Statement | JAN | Lauderdale | 41 min |
| Jul 7, 2:00 PM CDT | Special Weather Statement | JAN | Lauderdale | 30 min |
| Jul 7, 2:02 PM CDT | Special Weather Statement | JAN | Simpson | 28 min |
| Jul 7, 2:04 PM CDT | Special Weather Statement | JAN | Simpson | 31 min |
| Jul 7, 2:33 PM CDT | Special Weather Statement | JAN | Covington | 32 min |
| Jul 7, 2:35 PM CDT | Special Weather Statement | JAN | Smith | 30 min |
| Jul 7, 2:55 PM CDT | Special Weather Statement | JAN | Simpson | 30 min |
| Jul 7, 2:57 PM CDT | Special Weather Statement | JAN | Lawrence | 28 min |
| Jul 7, 2:58 PM CDT | Special Weather Statement | JAN | Franklin | 32 min |
| Jul 7, 3:05 PM CDT | Severe Thunderstorm Warning | JAN | Lawrence | 15 min |
| Jul 7, 3:24 PM CDT | Special Weather Statement | JAN | Covington | 31 min |
| Jul 7, 3:49 PM CDT | Special Weather Statement | JAN | Lincoln | 31 min |
| Jul 7, 3:55 PM CDT | Special Weather Statement | JAN | Scott | 30 min |
| Jul 7, 4:06 PM CDT | Special Weather Statement | JAN | Lincoln | 29 min |
| Jul 7, 4:32 PM CDT | Special Weather Statement | JAN | Covington | 28 min |
| Jul 7, 4:48 PM CDT | Special Weather Statement | JAN | Jefferson | 27 min |
| Jul 7, 5:04 PM CDT | Special Weather Statement | JAN | Rankin | 31 min |
| Jul 7, 5:06 PM CDT | Special Weather Statement | JAN | Hinds | 29 min |
| Jul 7, 5:13 PM CDT | Special Weather Statement | JAN | Claiborne | 32 min |
| Jul 7, 5:25 PM CDT | Special Weather Statement | JAN | Simpson | 30 min |
| Jul 7, 5:41 PM CDT | Flash Flood Warning | JAN | Covington, Forrest, Jefferson Davis, Jones, Lamar, Marion | 76 min |
| Jul 7, 5:55 PM CDT | Special Weather Statement | JAN | Hinds | 30 min |
| Jul 7, 6:37 PM CDT | Special Weather Statement | JAN | Warren | 28 min |
| Jul 7, 6:54 PM CDT | Special Weather Statement | JAN | Yazoo | 31 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2012Every severe thunderstorm warning 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.