Alert archive / Louisiana / Wind Advisories in 2011
Wind Advisory 15, NWS Lake Charles, LA
NWS Lake Charles, LA issued this wind advisory at May 1, 2011, 4:55 AM CDT for Lafayette Parish, Saint Martin Parish, Louisiana; Hardin County, Texas. It took effect at May 1, 2011, 9:00 AM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- May 1, 2011, 4:55 AM CDT (09:55 UTC)
- In effect from
- May 1, 2011, 9:00 AM CDT
- Expired
- May 1, 2011, 6:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Lake Charles, LA
Counties Lafayette Parish, LA, Saint Martin Parish, LA, Hardin County, TX
The radar
The Lake Charles radar (KLCH), 52 km from the middle of the area, began a volume at 09:52 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.9 hours before the alert went out and 51 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
- 2521 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 572 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 6.6
The text
As transmitted, in the capitals the NWS used until 2016.
184 WWUS74 KLCH 010955 NPWLCH URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LAKE CHARLES LA 455 AM CDT SUN MAY 1 2011 ...STRONG AND GUSTY SOUTHERLY WINDS WILL DEVELOP... .A TIGHTENING PRESSURE GRADIENT DEVELOPING AGAIN ACROSS THE AREA WILL RESULT IN A STRONG AND GUSTY SOUTHERLY FLOW. LAZ041-042-051-TXZ201-215-216-011800- /O.NEW.KLCH.WI.Y.0015.110501T1400Z-110501T2300Z/ CALCASIEU-JEFFERSON DAVIS-CAMERON-HARDIN-JEFFERSON-ORANGE- INCLUDING THE CITIES OF...LAKE CHARLES...JENNINGS...CAMERON... LUMBERTON...BEAUMONT/PORT ARTHUR...ORANGE 455 AM CDT SUN MAY 1 2011 ...WIND ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 6 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 9 AM THIS MORNING TO 6 PM CDT THIS EVENING. A TIGHTENING PRESSURE GRADIENT DEVELOPING AGAIN ACROSS THE AREA WILL RESULT IN A STRONG AND GUSTY SOUTHERLY FLOW. WINDS OF 15 TO 25 MPH WILL BE COMMON...WITH OCCASIONAL HIGHER GUSTS. WINDS WILL BEGIN TO RELAX BY EARLY EVENING.. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 TO 34 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. WINDS OVER LOCAL WATERWAYS COULD BE 5 MPH HIGHER THAN OVER LAND. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. && $$
1 follow-up statement
123 WWUS74 KLCH 011745 NPWLCH URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE LAKE CHARLES LA 1245 PM CDT SUN MAY 1 2011 ...STRONG AND GUSTY SOUTHERLY WINDS WILL PERSIST THIS AFTERNOON... .THE COMBINATION OF A TIGHT PRESSURE GRADIENT ACROSS THE AREA AND STRONG WINDS ALOFT MIXING DOWN WILL RESULT IN A STRONG AND GUSTY SOUTHERLY FLOW THROUGH THE AFTERNOON. LAZ043>045-052>055-012300- /O.EXA.KLCH.WI.Y.0015.000000T0000Z-110501T2300Z/ ACADIA-LAFAYETTE-UPPER ST. MARTIN-VERMILION-IBERIA-ST. MARY- LOWER ST. MARTIN- INCLUDING THE CITIES OF...CROWLEY...LAFAYETTE...ST. MARTINVILLE... ABBEVILLE...NEW IBERIA...MORGAN CITY 1245 PM CDT SUN MAY 1 2011 ...WIND ADVISORY IN EFFECT UNTIL 6 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CDT THIS EVENING. STRONG SOUTHERLY WINDS OF 20 TO 25 MPH WILL BE COMMON THROUGH THE REMAINDER OF THE AFTERNOON. OCCASIONAL HIGHER GUSTS TO 30 MPH CAN ALSO BE EXPECTED. WINDS WILL BEGIN TO RELAX BY EARLY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 TO 34 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. WINDS OVER LOCAL WATERWAYS COULD BE 5 MPH HIGHER THAN OVER LAND. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. && $$ LAZ041-042-051-TXZ201-215-216-012300- /O.CON.KLCH.WI.Y.0015.000000T0000Z-110501T2300Z/ CALCASIEU-JEFFERSON DAVIS-CAMERON-HARDIN-JEFFERSON-ORANGE- INCLUDING THE CITIES OF...LAKE CHARLES...JENNINGS...CAMERON... LUMBERTON...BEAUMONT/PORT ARTHUR...ORANGE 1245 PM CDT SUN MAY 1 2011 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING... A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING. STRONG SOUTHERLY WINDS OF 20 TO 25 MPH WILL BE COMMON THROUGH THE REMAINDER OF THE AFTERNOON. OCCASIONAL HIGHER GUSTS TO 30 MPH CAN ALSO BE EXPECTED. WINDS WILL BEGIN TO RELAX BY EARLY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 20 TO 34 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. WINDS OVER LOCAL WATERWAYS COULD BE 5 MPH HIGHER THAN OVER LAND. SMALL BOATS WILL BE ESPECIALLY PRONE TO CAPSIZING. && $$ 25
Nearby
Wind Advisories in Louisiana, 2011Wind Advisories in Texas, 2011Every wind advisory in 2011
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; radar from the NEXRAD Level II archive.