Alert archive / Louisiana / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 18, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Mar 9, 1994, 8:11 AM CST for Tangipahoa Parish, Louisiana. It was in force for 64 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
- Mar 9, 1994, 8:11 AM CST (14:11 UTC)
- Expired
- Mar 9, 1994, 9:15 AM CST
- In force
- 64 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Tangipahoa Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 9, 8:55 AM CST | Tornado F1 | Loranger, LA |
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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 2.2 hours before the alert went out and 80 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
- 504 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 526 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 318 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
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.
In the hours before
Special weather statement, Mar 9, 5:08 AM CST, 3 hours 3 minutes before
LAZ033>036-046>050-091300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 505 AM CST WED MAR 9 1994 ...FLASH FLOOD WATCH IN EFFECT TODAY... ...THUNDERSTORMS WITH STRONG WIND GUSTS AND VERY HEAVY RAIN APPROACHING PORTIONS OF EAST CENTRAL LOUISIANA... RADAR SHOWED A LARGE AREA OF RAIN WITH A FEW STRONG THUNDERSTORMS FROM ALEXANDRIA TO EAST OF LAKE CHARLES. THE STRONGEST THUNDERSTORMS WERE BETWEEN LAKE CHARLES AND VILLE PLATTE MOVING EAST AT 45 MPH. THESE STRONG THUNDERSTORMS PRODUCED WIND GUSTS OVER 55 MPH AT LAKE CHARLES. PEOPLE IN AVOYELLES AND ST LANDRY SHOULD BE ALERT AND READY FOR QUICK ACTION IF SEVERE WEATHER IS SIGHTED. THE HEAVY RAIN WILL CAUSE FLOODING OF STREETS...UNDERPASSES AND LOW LYING AREAS. MOTORISTS SHOULD EXERCISE CAUTION WHILE DRIVING THIS MORNING.
Special weather statement, Mar 9, 7:56 AM CST, 15 minutes before
LAZ033>036-046>050-091500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BATON ROUGE LA 755 AM CST WED MAR 9 1994 ...FLASH FLOOD WATCH IN EFFECT TODAY... ...THUNDERSTORMS WITH STRONG WIND GUSTS AND VERY HEAVY RAIN MOVING THROUGH THE BATON ROUGE METRO AREA... RADAR SHOWED A BAND OF STRONG THUNDERSTORMS NEAR GREENSBURG SOUTH TO BATON ROUGE TO WHITE CASTLE...MOVING EAST AT 40 MPH. THESE STRONG THUNDERSTORMS WILL PRODUCE STRONG WIND GUSTS WITH VERY HEAVY RAIN AND FRQUENT LIGHTNING. THE HEAVY RAIN WILL CAUSE FLOODING OF STREETS...UNDERPASSES AND LOW LYING AREAS. MOTORISTS SHOULD EXERCISE CAUTION WHILE DRIVING THIS MORNING.
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 6:02 AM CST | Severe Thunderstorm Warning | LIX | Saint Landry | 43 min |
| Mar 9, 6:33 AM CST | Severe Thunderstorm Warning | LIX | Iberia, Saint Martin | 57 min |
| Mar 9, 8:06 AM CST | Severe Thunderstorm Warning | LIX | Ascension, East Baton Rouge, Iberville, Livingston | 69 min |
| Mar 9, 8:47 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 58 min |
| Mar 9, 9:12 AM CST | Severe Thunderstorm Warning | LIX | Tangipahoa | 48 min |
| Mar 9, 9:42 AM CST | Severe Thunderstorm Warning | LIX | Saint Tammany, Washington | 63 min |
| Mar 9, 10:38 AM CST | Severe Thunderstorm Warning | LIX | Orleans, Saint Tammany | 67 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1994Every severe thunderstorm warning in 1994
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.