Alert archive / Louisiana / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 121, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Jun 13, 2003, 7:06 PM CDT for Washington Parish, Louisiana. It was in force for 39 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 13, 2003, 7:06 PM CDT (00:06 UTC)
- Expired
- Jun 13, 2003, 7:45 PM CDT
- In force
- 39 min
- Issued by
- NWS New Orleans, LA
- Area
- Counties, with a storm outline in the text
County Washington Parish, LA
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 13, 3:20 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 0.1 hours before the alert went out and 73 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
- 1524 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1004 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
949 WUUS54 KLIX 140006 SVRNEW LAC117-140045- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 705 PM CDT FRI JUN 13 2003 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WASHINGTON PARISH IN SOUTHEAST LOUISIANA THIS INCLUDES THE CITIES OF...FRANKLINTON...BOGALUSA * UNTIL 745 PM CDT * AT 706 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER ENON...OR ABOUT 6 MILES SOUTHEAST OF FRANKLINTON...MOVING EAST AT 20 MPH. THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS. HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY MAY BE WASHED OUT. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 3087 9026 3074 9026 3068 8986 3090 8986 $$
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 New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 13, 3:45 PM CDT, 3 hours 21 minutes earlier.
Area forecast discussion, Jun 13, 3:45 PM CDT, 3 hours 21 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 345 PM CDT WED JUN 13 2003 SHORT AND MID RANGE MODELS CONTINUE TO SHOW A WEAKENING UPPER LEVEL JET OVER SOUTHWEST CONUS TIER AND A BROAD TROUGH DEVELOPING OVER THE ARKANSAS/ARKLATEX REGION OVER THE WEEKEND. THIS SYNOPTIC PATTERN SHOULD CREATE A DEEP MOISTURE AXIS FROM SOUTHEAST TEXAS TO EASTERN TENNEESSEE BY SUNDAY NIGHT. AN UPPER LEVEL LOW WILL DEVELOP OVER ARKANSAS AND BECOME BAROTROPIC FROM THE SURFACE TO 500MB MONDAY AND DRIFT NORTH LATE TUE THROUGH FRI. ON MONDAY...THE MOISTURE AXIS WILL RESIDE FROM SOUTHEAST TEXAS TO NORTH ALABAMA. LIKELY POPS FOR NORTH ZONES. AS THE LOW DRIFTS NORTH...THE MOISTURE AXIS SHOULD DRIFT NORTH TOO. SOUTHWEST FLOW AHEAD OF THE TROUGH WILL STILL BE IN PLACE AND DO THINK ABOVE NORMAL POPS FOR THE SEVEN DAY FORECAST WILL DO FOR NOW. MESOETA HAS HAD SOME SUCCESS IN PICKING UP THESE OVERNIGHT DISTURBANCES AND AT OTHER TIMES...NOT SO LUCKY. HERE ARE SOME NUMBERS TOO PONDER... MCB 071/087 071/090 074 086/073 089/073 089/073 089/073 089 56452644454424 BTR 070/088 071/090 072 087/074 088/074 088/074 090/074 090 56452644454424 MSY 075/089 075/089 073 087/076 088/074 088/075 090/075 090 46352644344424 GPT 074/088 073/087 075 087/074 088/074 087/075 088/075 088 46352634344444 .NEW...NONE LA...NONE. MS...NONE. 18
Hazardous weather outlook, Jun 13, 11:30 AM CDT, 7 hours 36 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-141230- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1130 AM CDT FRI JUN 13 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST LOUISIANA AND EXTREME SOUTHWEST AND COASTAL MISSISSIPPI. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND TONIGHT. MOST OF THE ACTIVITY WILL BE DURING THE MID AFTERNOON HOURS. A FEW OF THESE STORMS MAY BECOME STRONG AS THEY MOVE THROUGH THE AREA. HOWEVER...THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED EACH DAY. THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ALONG AND WEST OF A LINE FROM BATON ROUGE LOUISIANA TO MC COMB MISSISSIPPI FOR SATURDAY AND SUNDAY. UPPER LEVEL DISTURBANCES MOVE ACROSS THE LOWER MISSISSIPPI VALLEY. .SPOTTER INFORMATION STATEMENT... THE ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL...IN SUPPORT OF SEVERE WEATHER OPERATIONS...IS NOT EXPECTED AT THIS TIME. 18
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 3:37 PM CDT | Severe Thunderstorm Warning | LIX | West Feliciana | 38 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 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.