Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 100, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Jun 9, 2001, 2:05 PM CDT for Jefferson Parish, Louisiana. It was in force for 15 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 9, 2001, 2:05 PM CDT (19:05 UTC)
- Expired
- Jun 9, 2001, 2:20 PM CDT
- In force
- 15 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Jefferson Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 7.1 hours before the alert went out and 74 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
- 735 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 572 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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 New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 9, 2:30 AM CDT, 11 hours 35 minutes earlier.
Area forecast discussion, Jun 9, 2:30 AM CDT, 11 hours 35 minutes before
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</html>In the hours before
Special weather statement, Jun 9, 11:00 AM CDT, 3 hours 5 minutes before
LAZ034>040-046>050-056>070-MSZ068>071-077-080>082-101200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 1100 AM CDT SAT JUN 9 2001 ...A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON FOR EAST CENTRAL AND SOUTHEAST LOUISIANA AS WELL AS ADJOINING COUTNIES OF MISSISSIPPI... .SYNOPSIS... THE REMNANTS OF TROPICAL STORM ALLISON LOCATED JUST WEST-SOUTHWEST OF GALVESTON ARE EXPECTED TO MOVE SLOWLY SOUTHEAST AND POSSIBLY EMERGE BACK OVER THE EXTREME NORTHWEST GULF LATER TODAY OR TONIGHT. DEEP TROPICAL MOISTURE WILL CONTINUE TO BRING SCATTERED TO NUMEROUS AREAS OF SHOWERS AND THUNDERSTORMS ACROSS MUCH OF THE CENTRAL GULF COAST REGION THROUGH TONIGHT. .THUNDERSTORMS... SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE THROUGH THIS AFTERNOON. THE MAIN THREAT FROM THE THUNDERSTORMS WILL BE HEAVY RAINFALL. IN ADDITION...OCCASIONAL CLOUD TO GROUND LIGHTNING AND WIND GUSTS UP TO 30 MILES AN HOUR ARE ALSO POSSIBLE. HOWEVER...WIDESPREAD SEVERE THUNDERSTORMS ARE NOT LIKELY ALTHOUGH AN ISOLATED TORNADO MAY OCCUR WITH THE STRONGER STORMS. .HEAVY RAIN AND FLOODING... AREAS WHICH RECEIVE REPEAT SHOWERS COULD RECEIVE AN ADDITIONAL 2 TO 4 INCHES OF RAINFALL WITH LOCALLY HIGHER AMOUNTS POSSIBLE. HEAVY RAIN ON ALREADY SATURATED GROUND WILL LIKELY CAUSE FLOODING. .ACTIONS...REFER TO THE LATEST FLOOD RELATED WATCHES...WARNINGS AND STATEMENTS. THE ACTIVATION OF STORM SPOTTERS MAY BE NEEDED IF ORGANIZED THUNDERSTORM DEVELOPMENT IS OBSERVED. FOR MORE INFORMATION PLEASE VISIT OUR HOME PAGE ON THE INTERNET AT THE FOLLOWING ADDRESS...HTTP://WWW.SRH.NOAA.GOV/LIX (ALL LETTERS SHOULD BE LOWER CASE).
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 3:15 PM CDT | Tornado Warning | LIX | Jefferson, Plaquemines | 30 min |
| Jun 9, 3:43 PM CDT | Severe Thunderstorm Warning | LIX | Plaquemines, Saint Bernard | 32 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 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; the sounding from the Mesonet's radiosonde archive.