Alert archive / Mississippi / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 477, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jun 11, 2003, 11:37 PM CDT for Humphreys County, Sharkey 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
- Jun 11, 2003, 11:37 PM CDT (04:37 UTC)
- Expired
- Jun 12, 2003, 12:20 AM CDT
- In force
- 43 min
- Issued by
- NWS Jackson, MS
- Area
- Counties, with a storm outline in the text
Counties Humphreys County, MS, Sharkey County, MS
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 7:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 4.6 hours before the alert went out and 92 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
- 1555 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 1169 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
267 WUUS54 KJAN 120437 SVRJAN MSC053-125-120520- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 1137 PM CDT WED JUN 11 2003 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN HUMPHREYS COUNTY IN CENTRAL MISSISSIPPI NORTHERN SHARKEY COUNTY IN WEST CENTRAL MISSISSIPPI * UNTIL 1220 AM CDT * AT 1137 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES WEST OF LOUISE...OR ABOUT 13 MILES EAST OF ROLLING FORK...MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL... BE NEAR LOUISE AT 1145 PM CDT BE NEAR MIDNIGHT AT 1150 PM CDT BE NEAR SILVER CITY AT MIDNIGHT CDT WINDS UP TO 60 MPH ARE LIKELY WITH THIS STORM. HAIL TO THE SIZE OF PENNIES IS LIKELY WITH THIS STORM. LAT...LON 3303 9074 3291 9074 3294 9049 3309 9048 $$
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 Jun 11, 8:21 PM CDT, 3 hours 16 minutes earlier.
Area forecast discussion, Jun 11, 8:21 PM CDT, 3 hours 16 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSON MS 820 CDT WED JUN 11 2003 CURRENTLY EXPERIENCING TRAINING OF SIGNIFICANT THUNDERSTORMS ACROSS THE NORTHERN FRINGE OF THE CWA. EAST TO WEST ORIENTED LINE IS LOCATED IN AN AREA OF ENHANCED MOISTURE CONVERGENCE IN A CONTINUED UNSTABLE ENVIRONMENT. CORFIDI VECTORS IN THIS AREA ARE WEAK AND ARE EXPECTED TO REMAIN SO THROUGH THE EVENING. THEREFORE...EXPECT THIS LINE OF CONVECTION TO CONTINUE THIS EVENING OVER NORTHERN ZONES WITH SOME SLIGHT SOUTHWARD DRIFT ANTICIPATED OVER THE NEXT FEW HOURS. WILL RAISE POPS UP TO LIKELY IN THE NORTHERN QUARTER. OVERNIGHT...MODELS INDICATING THE NOSE OF A 70-80 KT UPPER LEVEL JET WILL BE NUDGING INTO CENTRAL LA/SOUTHWEST MS AFTER MIDNIGHT. WITH EASTWARD PROPAGATING THUNDERSTORMS ONGOING IN CENTRAL TX CURRENTLY...THE POSSIBILITY THAT MORE STORMS WILL MOVE INTO WESTERN ZONES BEFORE MORNING EXISTS...ESPECIALLY IN WEST-CENTRAL/NW MS UNDERNEATH THE FAVORABLE LEFT EXIT REGION OF JET. GIVEN THE CURRENT AND EXPECTED SCENARIO...LOWERED POPS IN SOUTHEAST MS WHILE TRENDING A BIT HIGHER IN THE WEST AND NORTH. NEW SEVERE THUNDERSTORM WATCH IS BEING ISSUED TO COVER ACTIVITY TO THE NORTH AND WILL EXTEND NEARLY AS FAR SOUTH AS THE INTERSTATE 20 CORRIDOR. MAIN THREAT WILL BE HAIL...DAMAGING WINDS...AND HEAVY RAINS. .JAN... AR... LA... MS... 50
Hazardous weather outlook, Jun 11, 6:50 PM CDT, 4 hours 47 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074- 122350- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 650 PM CDT WED JUN 11 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MISSISSIPPI... NORTHEAST LOUISIANA...AND EXTREME SOUTHEAST ARKANSAS .DAY ONE...TONIGHT AND THURSDAY... ...THUNDERSTORMS... THUNDERSTORMS WILL BE POSSIBLE ACROSS THE ENTIRE AREA TONIGHT THROUGH THURSDAY. ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS EVENING AND AGAIN ON THURSDAY. DAMAGING WINDS FROM 60 TO 70 MPH...BRIEF HEAVY RAIN AND DANGEROUS LIGHTNING WILL BE POSSIBLE. SCATTERED THUNDERSTORMS WILL BE POSSIBLE THIS EVENING MAINLY NORTH OF INTERSTATE 20. SEVERAL BOUNDARIES FORMED AHEAD OF A STRONG LOW PRESSURE SYSTEM MOVING ACROSS THE MIDWEST...CAUSING MANY THUNDERSTORMS TO DEVELOP THIS AFTERNOON. AFTERNOON HEATING...MOISTURE AND OLD BOUNDARIES WILL LEAD TO MORE THUNDERSTORMS THROUGH THE EVENING...WHERE A FEW STORMS MAY BECOME SEVERE. SEVERAL UPPER LEVEL DISTURBANCES WILL MOVE INTO THE AREA FROM THE WEST EARLY THURSDAY. SOUTHERLY FLOW CONTINUES TO BRING WARM...MOIST AND UNSTABLE AIR INTO THE REGION. THE COMBINATION OF MOISTURE...INSTABILITY AND UPPER LEVEL DISTURBANCES WILL BRING SCATTERED THUNDERSTORMS TO THE AREA BY THURSDAY AFTERNOON...WHERE A FEW STORMS MAY BECOME SEVERE. ...FLOODING... COMPLEXES OF THUNDERSTORMS LATE THIS AFTERNOON COULD PERSIST WELL INTO THE NIGHT AS THEY MOVE EASTWARD ACROSS THE AREA...MAINLY NORTH OF HIGHWAY 82. PERIODS OF HEAVY RAINFALL COULD PRODUCE ONE TO TWO INCHES CAUSING PONDING OF WATER ON ROADWAYS AND IN POOR DRAINAGE AREAS. WEAK UPPER LEVEL DISTURBANCES WILL INTERACT WITH A TROPICAL AIRMASS TO PRODUCE THE HEAVY RAINS. ADDITIONAL OUTFLOW BOUNDARIES COULD ALSO FOCUS THE THUNDERSTORMS AGAIN THURSDAY AFTERNOON. .DAYS TWO THROUGH SEVEN...THURSDAY NIGHT THROUGH WEDNESDAY... ...DAYS TWO AND THREE...THURSDAY NIGHT THROUGH SATURDAY... SCATTERED THUNDERSTORMS CAN BE EXPECTED THURSDAY NIGHT THROUGH SATURDAY. THE ATMOSPHERE WILL REMAIN VERY MOIST AND UNSTABLE. WITH SEVERAL UPPER LEVEL DISTURBANCES MOVING ACROSS THE REGION...STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS THE ENTIRE AREA...MAINLY DURING THE AFTERNOONS AND EVENINGS. ...DAYS FOUR THROUGH SEVEN...SATURDAY NIGHT THROUGH WEDNESDAY... AN ACTIVE WEATHER PATTERN WILL CONTINUE THIS WEEKEND THROUGH EARLY NEXT WEEK. STRONG THUNDERSTORMS WILL BE POSSIBLE OVER THE ENTIRE OUTLOOK AREA SATURDAY THROUGH WEDNESDAY. AN LOW PRESSURE SYSTEM WILL SETTLE OVER THE ARKLATEX REGION AROUND SUNDAY. SOUTHERLY WINDS WILL INCREASE AHEAD OF THE SYSTEM AND PROVIDE A STEADY FLOW OF VERY MOIST AND UNSTABLE AIR INTO THE LOWER MISSISSIPPI RIVER VALLEY. THE UPPER LEVEL SYSTEM WILL REMAIN OVER THE AREA THROUGH WEDNESDAY...KEEPING A CHANCE OF STRONG THUNDERSTORMS THROUGH MID WEEK. .SPOTTER CALL TO ACTION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY MANAGEMENT PERSONNEL...IN SUPPORT OF SEVERE WEATHER OPERATIONS...MAY BE NEEDED THROUGH TONIGHT AND AGAIN ON THURSDAY. FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.SRH.NOAA.GOV/JAN. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
In the hours before
Local storm report, Jun 11, 9:17 PM CDT, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
917 PM CDT WED JUN 11 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0830 PM GRENADA MS WIND DAMAGE
06/11/03 GRENADA A FEW TREES DOWN.
REPORTED BY GRENADA
COUNTY SHERIFFS OFFICE.
0900 PM GRENADA MS FLOODING
06/11/03 GRENADA STREET FLOODING. REPORTED
BY GRENADA COUNTY
SHERIFFS OFFICE.Local storm report, Jun 11, 9:30 PM CDT, 2 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
930 PM CDT WED JUN 11 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0920 PM VAIDEN MS 0.75 INCH HAIL
06/11/03 CARROLL PUBLIC REPORT.Local storm report, Jun 11, 9:38 PM CDT, 1 hour 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
938 PM CDT WED JUN 11 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0935 PM GREENWOOD MS FLOODING
06/11/03 LEFLORE STREET FLOODING. REPORTED
BY LEFLORE COUNTY
SHERIFFS OFFICE.Local storm report, Jun 11, 10:17 PM CDT, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1017 PM CDT WED JUN 11 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1014 PM 1 E SKENE MS 0.75 INCH HAIL
06/11/03 BOLIVAR REPORTED BY BOLIVAR
COUNTY SHERIFFS OFFICE.Local storm report, Jun 11, 10:46 PM CDT, 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1046 PM CDT WED JUN 11 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1030 PM INVERNESS MS WIND DAMAGE
06/11/03 SUNFLOWER POWERLINES DOWN. POWER
OUTAGE. REPORTED BY
SUNFLOWER COUNTY SHERIFFS
OFFICE.Local storm report, Jun 11, 10:55 PM CDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED TIME OF REPORT
NATIONAL WEATHER SERVICE JACKSON MS
223 PM CDT WED JUN 11 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1155 AM STONEWALL MS 60 MPH WIND GUST
06/11/03 CLARKE PUBLIC REPORT.The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 7:00 PM CDT | Severe Thunderstorm Warning | JAN | Grenada | 40 min |
| Jun 11, 7:27 PM CDT | Severe Thunderstorm Warning | JAN | Bolivar | 63 min |
| Jun 11, 7:56 PM CDT | Severe Thunderstorm Warning | JAN | Grenada | 59 min |
| Jun 11, 7:59 PM CDT | Flash Flood Warning | JAN | Grenada | 3 hr |
| Jun 11, 8:08 PM CDT | Severe Thunderstorm Warning | JAN | Clay | 42 min |
| Jun 11, 8:09 PM CDT | Severe Thunderstorm Warning | JAN | Leflore, Sunflower | 61 min |
| Jun 11, 8:25 PM CDT | Flash Flood Warning | JAN | Leflore | 3 hr |
| Jun 11, 8:47 PM CDT | Severe Thunderstorm Warning | JAN | Carroll | 58 min |
| Jun 11, 9:36 PM CDT | Severe Thunderstorm Warning | JAN | Bolivar | 59 min |
| Jun 11, 10:28 PM CDT | Severe Thunderstorm Warning | JAN | Sunflower | 42 min |
| Jun 11, 11:03 PM CDT | Flash Flood Warning | JAN | Carroll, Holmes, Leflore, Sunflower | 3 hr |
| Jun 12, 9:13 AM CDT | Severe Thunderstorm Warning | JAN | Adams | 57 min |
| Jun 12, 9:58 AM CDT | Severe Thunderstorm Warning | JAN | Forrest | 42 min |
| Jun 12, 11:17 AM CDT | Severe Thunderstorm Warning | JAN | Jefferson Davis, Simpson | 43 min |
| Jun 12, 11:19 AM CDT | Severe Thunderstorm Warning | JAN | Lawrence | 31 min |
| Jun 12, 11:23 AM CDT | Severe Thunderstorm Warning | JAN | Smith | 47 min |
| Jun 12, 4:06 PM CDT | Severe Thunderstorm Warning | JAN | Adams | 59 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 2003Every severe thunderstorm warning in 2003
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.