Heat Advisory 19, NWS New Orleans, LA

945 
WWUS74 KLIX 310906
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
Issued by National Weather Service Jacksonville FL
406 AM CDT Tue Aug 31 2021

LAZ046>050-056>061-063>070-072-075-077-078-MSZ077-080>082-312100-
/O.NEW.KLIX.HT.Y.0020.210901T1500Z-210901T2200Z/
/O.CON.KLIX.HT.Y.0019.210831T1500Z-210831T2200Z/
Iberville-West Baton Rouge-East Baton Rouge-Ascension-Livingston-
Assumption-St. James-St. John The Baptist-Upper Lafourche-
St. Charles-Upper Jefferson-Upper Plaquemines-Upper St. Bernard-
Upper Terrebonne-Lower Terrebonne-Lower Lafourche-Lower Jefferson-
Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa-
Northwest St. Tammany-Western Orleans-Eastern Orleans-Pearl River-
Hancock-Harrison-Jackson-
Including the cities of Bayou Sorrel, Plaquemine, White Castle, 
Port Allen, Addis, Brusly, Baton Rouge, Gonzales, Donaldsonville,
Prairieville, Denham Springs, Watson, Walker, Pierre Part, 
Labadieville, Paincourtville, Convent, Lutcher, Gramercy, 
Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, 
Metairie, Kenner, Belle Chasse, Chalmette, Violet, Houma, 
Bayou Cane, Chauvin, Cocodrie, Dulac, Montegut, Galliano, 
Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, 
Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, 
Yscloskey, Hammond, Robert, Ponchatoula, Mandeville, Covington, 
Lacombe, New Orleans, East New Orleans, Crossroads, McNeil, 
Poplarville, Picayune, Bay St. Louis, Waveland, Diamondhead, 
Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, 
and St. Martin
406 AM CDT Tue Aug 31 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
5 PM CDT THIS AFTERNOON...
...HEAT ADVISORY IN EFFECT FROM 10 AM TO 5 PM CDT WEDNESDAY...

* WHAT...For the first Heat Advisory, heat index values up to 
  105 expected. For the second Heat Advisory, heat index values 
  up to 106 expected.

* WHERE...Portions of southeast and southern Mississippi and 
  southeast Louisiana.

* WHEN...For the first Heat Advisory, from 10 AM this morning to 
  5 PM CDT this afternoon. For the second Heat Advisory, from 10 
  AM to 5 PM CDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses to occur.

* ADDITIONAL DETAILS...Heat advisory thresholds have been
  temporarily lowered to 100, due to many of our communities
  without power and for high situational awareness during
  recovering efforts after Ida. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay out of the sun, and check up on 
relatives and neighbors. Be very cognizant of your hydration 
levels and take plenty of breaks. The absence of some basic 
services amid high heat indices can make situation very acute for 
areas challenged by power outages. 

Know the signs and symptoms of heat exhaustion and heat stroke. Anyone
overcome by heat should be moved to a cool and shaded location. Heat
stroke is an emergency! Call 9 1 1.

&&

$$

LAZ034>037-039-071-076-MSZ068>071-312100-
/O.NEW.KLIX.HT.Y.0020.210901T1500Z-210901T2200Z/
Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington-
Northern Tangipahoa-Southeast St. Tammany-Wilkinson-Amite-Pike-
Walthall-
Including the cities of New Roads, Lettsworth, Livonia, Spillman,
St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington,
Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton,
Amite, Kentwood, Roseland, Wilmer, Slidell, Centreville, 
Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, 
Liberty, McComb, Dexter, Salem, and Tylertown
406 AM CDT Tue Aug 31 2021

...HEAT ADVISORY IN EFFECT FROM 10 AM TO 5 PM CDT WEDNESDAY...

* WHAT...Heat index values up to 103 expected.

* WHERE...Portions of southern Mississippi and southeast 
  Louisiana.

* WHEN...From 10 AM to 5 PM CDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses to occur.

* ADDITIONAL DETAILS...Heat advisory thresholds have been
  temporarily lowered to 100, due to many of our communities
  without power and for high situational awareness during
  recovering efforts after Ida. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay out of the sun, and check up on 
relatives and neighbors. Be very cognizant of your hydration 
levels and take plenty of breaks. The absence of some basic 
services amid high heat indices can make situation very acute for 
areas challenged by power outages. 

Know the signs and symptoms of heat exhaustion and heat stroke. Anyone
overcome by heat should be moved to a cool and shaded location. Heat
stroke is an emergency! Call 9 1 1.

&&

$$

051 
WWUS74 KLIX 311926
NPWLIX

URGENT - WEATHER MESSAGE
National Weather Service New Orleans LA
Issued by National Weather Service Jacksonville FL
226 PM CDT Tue Aug 31 2021

LAZ046>050-056>061-063>070-072-075-077-078-MSZ077-080>082-011030-
/O.CON.KLIX.HT.Y.0019.000000T0000Z-210831T2200Z/
/O.CON.KLIX.HT.Y.0020.210901T1500Z-210901T2200Z/
Iberville-West Baton Rouge-East Baton Rouge-Ascension-Livingston-
Assumption-St. James-St. John The Baptist-Upper Lafourche-
St. Charles-Upper Jefferson-Upper Plaquemines-Upper St. Bernard-
Upper Terrebonne-Lower Terrebonne-Lower Lafourche-Lower Jefferson-
Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa-
Northwest St. Tammany-Western Orleans-Eastern Orleans-Pearl River-
Hancock-Harrison-Jackson-
Including the cities of Bayou Sorrel, Plaquemine, White Castle, 
Port Allen, Addis, Brusly, Baton Rouge, Gonzales, Donaldsonville,
Prairieville, Denham Springs, Watson, Walker, Pierre Part, 
Labadieville, Paincourtville, Convent, Lutcher, Gramercy, 
Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, 
Metairie, Kenner, Belle Chasse, Chalmette, Violet, Houma, 
Bayou Cane, Chauvin, Cocodrie, Dulac, Montegut, Galliano, 
Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, 
Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, 
Yscloskey, Hammond, Robert, Ponchatoula, Mandeville, Covington, 
Lacombe, New Orleans, East New Orleans, Crossroads, McNeil, 
Poplarville, Picayune, Bay St. Louis, Waveland, Diamondhead, 
Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, 
and St. Martin
226 PM CDT Tue Aug 31 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 5 PM CDT THIS
AFTERNOON...
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 5 PM CDT
WEDNESDAY...

* WHAT...For the first Heat Advisory, heat index values up to 
  105. For the second Heat Advisory, heat index values up to 106 
  expected.

* WHERE...Portions of southeast and southern Mississippi and 
  southeast Louisiana.

* WHEN...For the first Heat Advisory, until 5 PM CDT this 
  afternoon. For the second Heat Advisory, from 10 AM to 5 PM 
  CDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

LAZ034>037-039-071-076-MSZ068>071-011030-
/O.CON.KLIX.HT.Y.0020.210901T1500Z-210901T2200Z/
Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington-
Northern Tangipahoa-Southeast St. Tammany-Wilkinson-Amite-Pike-
Walthall-
Including the cities of New Roads, Lettsworth, Livonia, Spillman,
St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington,
Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton,
Amite, Kentwood, Roseland, Wilmer, Slidell, Centreville, 
Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, 
Liberty, McComb, Dexter, Salem, and Tylertown
226 PM CDT Tue Aug 31 2021

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 5 PM CDT
WEDNESDAY...

* WHAT...Heat index values up to 107 expected.

* WHERE...Portions of southern Mississippi and southeast 
  Louisiana.

* WHEN...From 10 AM to 5 PM CDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Area Forecast Discussion
National Weather Service New Orleans LA
Issued by National Weather Service Jacksonville FL
246 PM CDT Mon Aug 30 2021

.SHORT TERM (TONIGHT THROUGH TUESDAY NIGHT)...

Tropical Storm Ida will continue to push slowly northeast MS by
daybreak Tuesday and into Middle Tennessee by Tuesday evening.
During Ida's journey northeast tonight it is expected to become a
depression. A trailing band will train thunderstorms across
coastal SE LA and coastal SW MS and vertically along the MS/LA
border through this evening. Strongest convergence should align
along coastal areas tonight with highest rain totals over coastal
Mississippi where an addition 1 to 1.5 inches are possible where
there is a slight risk of flooding through tonight. Wake trough
and convergent flow will likely persist through mid day Tuesday
night and this will keep thunderstorm and additional rainfall
chances in place mainly south of I-10 stratifying to higher
chances along the coast and adjacent Gulf of Mexico waters. Highs
will will warm into the upper 80s to near 90 on Tuesday. Plenty of
tropical moisture combined with these temperatures will bring heat
indices in some Southeast Louisiana and Southwest Mississippi to
reach 100 degrees during the late morning hours through most of
the afternoon. Heat advisory thresholds in this special
circumstance has been lowered to 100 degrees, due to lack of power
in many places and during the recovery efforts. Please take
frequent breaks and drink plenty of water. Conditions near the
coast will also remain breezy through mid day Tuesday as a fairly
tight pressure gradient lingers over the region in the wake of
Ida. Conditions will continue to improve by Tuesday evening as
the pressure gradient begins to loosen.

.LONG TERM (Wednesday through Saturday)...The trailing wake
trough will to provide a convergence boundary with resultant
showers and thunderstorms developing over the area on Wednesday
and keep likely to categorical POP values in place through the
day. A trailing trough will be extending back into the region
Wednesday, slipping down to the coast by Wednesday night. By
Thursday, a northerly flow will take hold of the region and this
will usher in a much drier and much more stable airmass.
Precipitable water values will decrease to between 1.5 and 2
inches, and rain chances will diminish to 20 percent or less from
Thursday through Saturday as strong upper level subsidence warms
the mid-levels and reduces instability. Some weak cool air
advection will also occur, and this should help with recovery and
restoration efforts. With the deeper moisture is pushed offshore
into the Gulf and a mostly dry forecast is expected through the
extend period except for down near the coast where slightly better
moisture and daily sea breezes will result in some isolated
convection. Temperatures are projected to dip into the 60s and
lower 70s at night and highs are only expected to rise into the
upper 80s. Humidity values will also be a bit lower than normal
for early September.

&&

.AVIATION (18z TAF discussion)...

Mainly MVFR ceilings rest of today and into tonight with main
band of showers from near or east of KGPT to extreme southeast
LA. Some trailing bands of showers will still be possible into the
evening hours as they rotate around TC Ida. Included IFR ceiling
for KMCB for Tuesday morning with support from MOS and SREF but
otherwise mainly MVFR Tuesday morning. Additional shower activity
possible overnight but more isolated and scattered in coverage.
South to southwest winds close to 15G25kt rest of the aftn and
will diminish tonight. Mainly southwest and west winds 10-15 kt
Tuesday.

&&

.MARINE...Hazardous conditions for maritime interests continue
most of this evening as Tropical Storm Ida moves further inland
across Mississippi. Winds will start to ease overnight, but a
tight pressure gradient over the coastal waters will keep winds in
the Small Craft Advisory range (20-30 kts) through this evening.
The pressure gradient should continue to weaken overnight through
Wednesday as winds should decrease to 10 to 15 knots by Wednesday
night. Seas will correspondingly decrease to 3 to 5 feet by this
time. A weak front will slip through on Thursday and winds will
shift to the north at 5 to 10 knots for the end of the week. Seas
of 2 feet or less are expected with these lighter winds.

&&

.CWF (Marine Light)...
Tropical Storm Ida will continue to move north away from the region
today but hazardous winds and seas will continue across most of
the area waters rest of today and into tonight. Breezy southwest
winds and roughs seas are likely over open waters on Tuesday.
Winds will begin to ease further Tuesday night. A feeder band of
training showers and thunderstorms expected to continue across
Louisiana and Mississippi Gulf waters through the evening.
Tropical Storm Warnings remain in effect for portions of the
eastern waters and Small Craft Advisory to the west.

&&

.HYDROLOGY...Surge will slowly pull back through this evening along
the coastal and river parishes. However, coastal flooding will
likely continue. Moderate to Major river flooding will continue
at through at least early Wednesday on Tchefuncte, Tangipahoa,
Bougue, Falaya River and Hobolochito Creek. Creeks and
tributaries of the Pearl River are also expected to remain or reach
moderate to major flood stages as well over the next 12 to 24
hours.

.PRELIMINARY POINT TEMPS/POPS...
MCB  72  89  73  89 /  40   0  20  50
BTR  72  89  73  89 /  30   0  40  60
ASD  75  90  75  91 /  60  20  40  70
MSY  77  92  78  92 /  70  30  50  70
GPT  76  89  75  90 /  90  20  40  60
PQL  75  88  73  90 /  90  50  40  60

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Flash Flood Watch through late tonight for LAZ049-057>061-
     063>070-075>078.

     Coastal Flood Advisory until 9 PM CDT this evening for LAZ056-
     058>061-063>070-072-075>078.

     Heat Advisory from 10 AM to 5 PM CDT Tuesday for LAZ046>050-
     056>061-063>070-072-075-077-078.

     Tropical Storm Warning for LAZ039-071.

GM...Small Craft Advisory until 5 AM CDT Tuesday for GMZ530-534-538-
     550-552-555-570-572-575.

     Tropical Storm Warning for GMZ532-536-557-577.

MS...Flash Flood Watch through late tonight for MSZ077-080>082.

     Heat Advisory from 10 AM to 5 PM CDT Tuesday for MSZ077-080>082.

     Tropical Storm Warning for MSZ070-071-077-080>082.

     Storm Surge Warning for MSZ080>082.

GM...Small Craft Advisory until 5 AM CDT Tuesday for GMZ534-538-550-
     552-555-570-572-575.

     Tropical Storm Warning for GMZ536-557-577.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1132 AM CDT MON AUG 30 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0945 AM     TORNADO          3 E ESCATAWPA           30.48N 88.51W
08/30/2021                   JACKSON            MS   EMERGENCY MNGR

            EMERGENCY MANAGER RELAYED PUBLIC REPORT OF
            POSSIBLE TORNADO DAMAGE AT THE INTERSECTION
            OF CODA ROAD AND SARACENNIA ROAD. TIME
            ESTIMATED.

&&

KLG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
117 PM CDT MON AUG 30 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 PM     FLASH FLOOD      MOSS POINT              30.43N 88.53W
08/30/2021                   JACKSON            MS   EMERGENCY MNGR

            NUMEROUS WATER RESCUES REPORTED IN EASTERN
            JACKSON COUNTY. ESTIMATED 300 HOMES ARE
            AFFECTED BY FLOODING AND 150 ROAD CLOSURES.

&&

JRK