Alert archive / Mississippi / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 553, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jul 12, 2001, 1:56 PM CDT for Jasper County, Mississippi. It was in force for 34 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 12, 2001, 1:56 PM CDT (18:56 UTC)
- Expired
- Jul 12, 2001, 2:30 PM CDT
- In force
- 34 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Jasper County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 12, 2:00 PM CDT | Thunderstorm Wind | Bay Spgs, MS | A few trees were blown down in a rural area. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 6.9 hours before the alert went out and 96 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
- 2048 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 847 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 12, 3:25 AM CDT, 10 hours 31 minutes earlier.
Area forecast discussion, Jul 12, 3:25 AM CDT, 10 hours 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSON MS 325 AM CDT THU JUL 12 2001 GENERAL PATTERN CONTINUES TO FEATURE HOT UPPER SUBTROPICAL RIDGE CENTERED OVER THE SOUTHERN PLAINS WITH INCREASING NORTHWEST FLOW FORECASTED OVER THE LOWER MISSISSIPPI VALLEY REGION. LATEST MODEL RUNS ARE SHOWING STRONG INDICATIONS TOWARDS A BREAK IN THE EXCESSIVE HEAT BY THIS WEEKEND. FOR TODAY...BASED ON LATEST TEMP TRENDS AND GUIDANCE...WILL CONTINUE HEAT ADVISORY FOR TODAY WITH NO CHANGES MADE TO ADVISORY DETAILS. AS IN RECENT DAYS SEVERAL OUTFLOW BOUNDARIES WERE LEFT OVERNIGHT AND SHOULD ONCE AGAIN PROVIDE FOCUS FOR THUNDERSTORM DEVELOPMENT...GIVEN PRECIPITABLE WATER VALUES > 2 INCHES AND PROGGED AFTN CAPES ~3500 J/KG. MID LEVEL TEMPS (~-4 DEG C AT 500MB) STILL RELATIVELY WARM AND TSTM COVERAGE IS NOT EXPECTED TO BE MORE THAN SCATTERED. FOR TONIGHT AND FRIDAY...THE 00Z ETA/AVN/UKMET ARE IN GOOD AGREEMENT ON BRINGING A MID LEVEL SHORTWAVE TROF WITH MODEST HEIGHT FALLS AND ASSOC SURFACE COLD FRONT ACROSS THE FORECAST AREA BY LATE FRIDAY. AT THIS TIME...IT APPEARS SIGNIFICANT MCS DEVELOPMENT MAY AFFECT NW ZONES TONIGHT AND CNTRL ZONES TOWARDS FRI MORNING. SIGNIFICANT CONVECTIVE DEVELOPMENT WOULD BE MORE LIKELY OVER SRN ZONES DURING DAY ON FRIDAY AS BEST DYNAMICS AND SFC BASED INSTABILITY SHIFT SOUTHWARD. WILL ALIGN BEST POPS BASED ON THE ABOVE THINKING. STILL NOT CONFIDENT ENOUGH TO GO LIKELY CATEGORY AT ANY LOCATION. FOR FRIDAY NIGHT AND EXTENDED...JUST AS MODELS ARE IN GOOD AGREEMENT ON SHORTWAVE/COLD FRONT PASSAGE THU NIGHT...THEY ARE IN GOOD AGREEMENT ON STRONG DRYING TO OCCUR IN THE WAKE...WITH SURFACE DEWPOINT TEMPS IN THE UPPER 50S APPROACHING NRN COUNTIES BY FRI NIGHT. THIS WILL BRING AT LEAST A TEMPORARY END TO DEEP MOIST CONVECTIVE CHANCES AND WILL NEED TO MAKE A FEW CHANGES TO THE EXTENDED. JAN 95/74/89/70 4452 MEI 95/72/89/67 4451 .JAN... MS...HEAT ADVISORY ALONG AND WEST OF A GREENWOOD TO BRANDON TO COLUMBIA LINE. LA...HEAT ADVISORY TODAY. AR...HEAT ADVISORY TODAY. 43
In the hours before
Local storm report, Jul 12, 12:01 PM CDT, 1 hour 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1201 PM CDT THU JUL 12 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
...COUNTY LOCATION....
0550 PM 2 W ADATON MS WIND DAMAGE
07/12/01 OKTIBBEHA S.O. REPORTED TREES
DOWN.
0600 PM RICHLAND MS WIND DAMAGE
07/12/01 RANKIN P.D. REPORTED TREES
DOWN AS WELL AS A ROOF
BLOWN OFF OF A BARN.
0600 PM RICHLAND MS FLOOD
07/12/010 RANKIN P.D. REPORTED 3 HOUSES
FLOODED.The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 7:30 PM CDT | Severe Thunderstorm Warning | JAN | Copiah | 15 min |
| Jul 11, 7:58 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Jefferson | 47 min |
| Jul 12, 2:04 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Lincoln | 26 min |
| Jul 12, 2:29 PM CDT | Severe Thunderstorm Warning | JAN | Attala | 46 min |
| Jul 12, 2:45 PM CDT | Severe Thunderstorm Warning | JAN | Copiah | 45 min |
| Jul 12, 3:15 PM CDT | Severe Thunderstorm Warning | JAN | Leake | 45 min |
| Jul 12, 3:24 PM CDT | Severe Thunderstorm Warning | JAN | Winston | 36 min |
| Jul 12, 3:27 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena, Washington | 33 min |
| Jul 12, 3:36 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson | 39 min |
| Jul 12, 3:37 PM CDT | Severe Thunderstorm Warning | JAN | Neshoba | 38 min |
| Jul 12, 3:42 PM CDT | Severe Thunderstorm Warning | JAN | Forrest, Lamar | 33 min |
| Jul 12, 3:45 PM CDT | Severe Thunderstorm Warning | JAN | Scott | 45 min |
| Jul 12, 3:48 PM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 27 min |
| Jul 12, 3:55 PM CDT | Severe Thunderstorm Warning | JAN | Rankin | 35 min |
| Jul 12, 4:02 PM CDT | Severe Thunderstorm Warning | JAN | Simpson | 43 min |
| Jul 12, 4:15 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson | 45 min |
| Jul 12, 4:20 PM CDT | Severe Thunderstorm Warning | JAN | Lamar, Marion | 40 min |
| Jul 12, 4:20 PM CDT | Severe Thunderstorm Warning | JAN | Forrest | 40 min |
| Jul 12, 4:27 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne | 48 min |
| Jul 12, 4:47 PM CDT | Severe Thunderstorm Warning | JAN | Warren | 43 min |
| Jul 12, 5:15 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne, Copiah | 30 min |
| Jul 12, 6:00 PM CDT | Severe Thunderstorm Warning | JAN | Adams | 45 min |
| Jul 12, 6:07 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson | 38 min |
| Jul 12, 6:45 PM CDT | Severe Thunderstorm Warning | JAN | Adams | 30 min |
| Jul 12, 5:21 PM CDT | Severe Thunderstorm Warning | JAN | Tensas | 39 min |
| Jul 12, 6:36 PM CDT | Severe Thunderstorm Warning | JAN | Franklin | 24 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.