Alert archive / Louisiana / Special Weather Statements in 2021
Special Weather Statement, NWS New Orleans, LA
NWS New Orleans, LA issued this special weather statement at Aug 9, 2021, 3:16 PM CDT for Tangipahoa Parish, Louisiana. It was in force for 29 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 9, 2021, 3:16 PM CDT (20:16 UTC)
- Expired
- Aug 9, 2021, 3:45 PM CDT
- In force
- 29 min
- Issued by
- NWS New Orleans, LA
- Hail
- 0.00 in
- Wind
- 30
County Tangipahoa Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.3 hours before the alert went out and 90 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
- 2279 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 769 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
347
WWUS84 KLIX 092016
SPSLIX
Special Weather Statement
National Weather Service New Orleans LA
316 PM CDT Mon Aug 9 2021
LAZ037-050-071-072-092045-
Livingston LA-St. Helena LA-Northern Tangipahoa LA-
Southern Tangipahoa LA-
316 PM CDT Mon Aug 9 2021
...A strong thunderstorm will impact portions of southeastern St.
Helena, northeastern Livingston and west central Tangipahoa Parishes
through 345 PM CDT...
At 316 PM CDT, Doppler radar was tracking a strong thunderstorm over
Albany, or 9 miles west of Hammond, moving north at 15 mph.
HAZARD...Winds in excess of 30 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Hammond, Amite City, Independence, Albany, Springfield, Montpelier,
Natalbany and Tickfaw.
This includes the following Interstates...
Interstate 12 between mile markers 25 and 37.
Interstate 55 in Louisiana between mile markers 30 and 47.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3041 9053 3046 9073 3076 9069 3069 9039
TIME...MOT...LOC 2016Z 194DEG 15KT 3051 9061
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
$$
TDThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 12:14 PM CDT | Special Weather Statement | LIX | Orleans | 31 min |
| Aug 9, 12:53 PM CDT | Special Weather Statement | LIX | Orleans | 37 min |
| Aug 9, 1:36 PM CDT | Areal Flood Advisory | LIX | Orleans, Saint Bernard | 114 min |
| Aug 9, 1:41 PM CDT | Special Marine Warning | LIX | 49 min | |
| Aug 9, 2:15 PM CDT | Special Weather Statement | LIX | West Baton Rouge | 45 min |
| Aug 9, 2:47 PM CDT | Special Weather Statement | LIX | Livingston | 43 min |
| Aug 9, 3:43 PM CDT | Special Weather Statement | LIX | Tangipahoa | 32 min |
| Aug 9, 3:47 PM CDT | Special Weather Statement | LIX | Tangipahoa | 28 min |
| Aug 9, 4:06 PM CDT | Special Weather Statement | LIX | Pike | 24 min |
| Aug 9, 4:32 PM CDT | Special Weather Statement | LIX | Walthall | 58 min |
| Aug 9, 5:30 PM CDT | Special Weather Statement | LIX | Marion | 15 min |
Nearby
Special Weather Statements in Louisiana, 2021Every special weather statement in 2021
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.