Alert archive / Louisiana / Special Weather Statements in 2024

Special Weather Statement, NWS New Orleans, LA

August 15, 2024Tangipahoa Parish, Louisiana

NWS New Orleans, LA issued this special weather statement at Aug 15, 2024, 3:21 PM CDT for Tangipahoa 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: Aug 15, 2024, 3:21 PM CDT (20:21 UTC)
Expired: Aug 15, 2024, 4:00 PM CDT
In force: 39 min
Issued by: NWS New Orleans, LA
Hail: 0.25 in
Wind: 40

County Tangipahoa Parish, LA

The radar

The Hammond radar (KHDC), 34 km from the middle of the area, began a volume at 20:25 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.4 hours before the alert went out and 91 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2760 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 796 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 15, 12:59 PM CDT, 2 hours 22 minutes earlier.

Area forecast discussion, Aug 15, 12:59 PM CDT, 2 hours 22 minutes before

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In the hours before

Special weather statement, Aug 15, 2:44 PM CDT, 37 minutes before

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Special weather statement, Aug 15, 2:47 PM CDT, 34 minutes before

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Special weather statement, Aug 15, 2:58 PM CDT, 23 minutes before

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Special weather statement, Aug 15, 3:10 PM CDT, 11 minutes before

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Special weather statement, Aug 15, 3:13 PM CDT, 8 minutes before

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Special weather statement, Aug 15, 3:21 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service New Orleans LA
321 PM CDT Thu Aug 15 2024

LAZ039-071-152100-
Washington LA-Northern Tangipahoa LA-
321 PM CDT Thu Aug 15 2024

...A STRONG THUNDERSTORM WILL IMPACT PORTIONS OF NORTHERN TANGIPAHOA
AND WEST CENTRAL WASHINGTON PARISHES THROUGH 400 PM CDT
...

At 321 PM CDT, Doppler radar was tracking a strong thunderstorm over
Wilmer, or 9 miles northeast of Amite, moving southwest at 15 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Amite City, Roseland, Wilmer, and Tangipahoa.

This includes Interstate 55 in Louisiana between mile markers 50 and
55.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in New Orleans.

&&

LAT...LON 3085 9021 3071 9026 3076 9057 3082 9057
      3095 9042
TIME...MOT...LOC 2021Z 027DEG 12KT 3084 9040

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

TJS

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 14, 7:03 PM CDT	Special Weather Statement	LIX	Saint Tammany	42 min
Aug 14, 7:47 PM CDT	Special Marine Warning	LIX		88 min
Aug 14, 7:50 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	25 min
Aug 14, 8:06 PM CDT	Special Weather Statement	LIX	Orleans	54 min
Aug 14, 8:14 PM CDT	Special Weather Statement	LIX	Saint Charles, Saint John the Baptist	61 min
Aug 14, 8:26 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Tammany	34 min
Aug 14, 8:30 PM CDT	Areal Flood Advisory	LIX	Saint Tammany	2 hr
Aug 14, 8:35 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Bernard	40 min
Aug 15, 3:16 AM CDT	Excessive Heat Warning	LIX	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 13 more	15 hr
Aug 15, 8:09 AM CDT	Special Marine Warning	LIX		33 min
Aug 15, 1:54 PM CDT	Special Weather Statement	LIX	Washington	36 min
Aug 15, 2:23 PM CDT	Heat Advisory	LIX	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 13 more	29 hr
Aug 15, 2:44 PM CDT	Special Weather Statement	LIX	Washington	31 min
Aug 15, 2:58 PM CDT	Special Weather Statement	LIX	Saint Helena	32 min
Aug 15, 3:10 PM CDT	Special Weather Statement	LIX	Washington	35 min
Aug 15, 3:13 PM CDT	Special Weather Statement	LIX	Saint Helena	47 min
Aug 15, 3:52 PM CDT	Severe Thunderstorm Warning	LIX	Tangipahoa	38 min
Aug 15, 3:56 PM CDT	Special Weather Statement	LIX	East Feliciana, Saint Helena	34 min
Aug 15, 4:04 PM CDT	Special Weather Statement	LIX	Saint Tammany	41 min
Aug 15, 4:15 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany, Tangipahoa	45 min
Aug 15, 4:23 PM CDT	Special Weather Statement	LIX	Livingston	37 min
Aug 15, 4:29 PM CDT	Special Marine Warning	LIX		2 hr
Aug 15, 4:32 PM CDT	Special Weather Statement	LIX	Livingston, Saint John the Baptist	28 min
Aug 15, 4:33 PM CDT	Special Weather Statement	LIX	East Feliciana	27 min
Aug 15, 4:42 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, East Baton Rouge, Livingston	48 min
Aug 15, 4:49 PM CDT	Special Weather Statement	LIX	Saint Tammany	26 min
Aug 15, 4:57 PM CDT	Special Weather Statement	LIX	West Baton Rouge, West Feliciana	33 min
Aug 15, 4:59 PM CDT	Special Weather Statement	LIX	Saint John the Baptist	46 min
Aug 15, 5:11 PM CDT	Special Weather Statement	LIX	Ascension, Iberville, Saint James, West Baton Rouge	34 min
Aug 15, 5:22 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Assumption, East Baton Rouge, Iberville, Livingston, Saint James and 1 more	38 min
Aug 15, 5:36 PM CDT	Special Weather Statement	LIX	Orleans, Saint Charles	24 min
Aug 15, 5:55 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Assumption, Iberville, Lafourche, Saint James, Terrebonne	65 min
Aug 15, 5:57 PM CDT	Flash Flood Warning	LIX	Ascension, Assumption, East Baton Rouge, Iberville, Livingston, Saint James and 1 more	2 hr
Aug 15, 6:03 PM CDT	Special Weather Statement	LIX	Saint Charles, Saint John the Baptist	42 min
Aug 15, 6:13 PM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans, Saint Charles	100 min
Aug 15, 6:25 PM CDT	Areal Flood Advisory	LIX	Assumption, Lafourche, Saint Charles, Saint James, Saint John the Baptist, Terrebonne	20 min
Aug 15, 6:45 PM CDT	Flash Flood Warning	LIX	Assumption, Lafourche, Saint James, Saint John the Baptist	63 min
Aug 15, 6:48 PM CDT	Special Weather Statement	LIX	Lafourche	42 min
Aug 14, 7:09 PM CDT	Special Weather Statement	LIX	Hancock	51 min
Aug 15, 2:22 PM CDT	Special Weather Statement	LIX	Pike	38 min
Aug 15, 2:34 PM CDT	Severe Thunderstorm Warning	LIX	Amite, Pike	41 min
Aug 15, 2:47 PM CDT	Special Weather Statement	LIX	Amite	28 min
Aug 15, 5:16 PM CDT	Special Weather Statement	LIX	Hancock	44 min

Nearby

Special Weather Statements in Louisiana, 2024 Every special weather statement in 2024

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.