Alert archive / Louisiana / Excessive Heat Warnings in 2020
Excessive Heat Warning 2, NWS New Orleans, LA
NWS New Orleans, LA issued this excessive heat warning at Jul 13, 2020, 3:54 AM CDT for Saint Bernard Parish, Saint James Parish, Saint John the Baptist Parish, Louisiana. It took effect at Jul 13, 2020, 10:00 AM CDT. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 13, 2020, 3:54 AM CDT (08:54 UTC)
- In effect from
- Jul 13, 2020, 10:00 AM CDT
- Expired
- Jul 13, 2020, 8:00 PM CDT
- In force
- 10 hr
- Issued by
- NWS New Orleans, LA
Counties Saint Bernard Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 8.9 hours before the alert went out and 69 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
- 2514 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1455 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this excessive heat warning 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 excessive heat warning went out at Jul 12, 11:51 PM CDT, 4 hours 3 minutes earlier.
Area forecast discussion, Jul 12, 11:51 PM CDT, 4 hours 3 minutes before
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</html>In the hours before
Special weather statement, Jul 13, 2:09 AM CDT, 1 hour 45 minutes before
Special Weather Statement
National Weather Service New Orleans LA
209 AM CDT Mon Jul 13 2020
MSZ082-130815-
Jackson-
209 AM CDT Mon Jul 13 2020
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN JACKSON
COUNTY...
At 209 AM CDT, radar indicated strong thunderstorms were located
along a line extending from 15 miles east of Perkinston to near
Tanner Williams, Alabama. Movement was east at 15 mph.
Winds in excess of 30 mph are possible with these storms.
Locations impacted include...
Big Point, Hurley, Wade and Vancleave.
If outdoors, consider seeking shelter inside a building.
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 3058 8888 3071 8889 3073 8888 3074 8842
3072 8841 3061 8840 3056 8841
TIME...MOT...LOC 0709Z 282DEG 13KT 3074 8888 3074 8842
24/RRSpecial weather statement, Jul 13, 2:26 AM CDT, 1 hour 28 minutes before
Special Weather Statement
National Weather Service New Orleans LA
226 AM CDT Mon Jul 13 2020
MSZ081-082-130800-
Jackson-Harrison-
226 AM CDT Mon Jul 13 2020
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN HARRISON
AND JACKSON COUNTIES...
At 226 AM CDT, radar indicated strong thunderstorms were located
along a line extending from near Big Point to near Vancleave to 16
miles east of Perkinston. Movement was south at 15 mph.
Winds in excess of 30 mph are possible with these storms.
Locations impacted include...
Biloxi, Ocean Springs, Moss Point, St. Martin, Escatawpa, Gautier,
D'iberville, Wade, Latimer, Big Point, Helena, Gulf Hills, Hurley,
Vancleave, Gulf Park Estates and Hickory Hills.
LAT...LON 3037 8841 3038 8881 3043 8885 3043 8891
3040 8886 3039 8886 3040 8896 3042 8896
3042 8891 3043 8896 3063 8899 3068 8897
3067 8889 3073 8888 3073 8876 3068 8871
3068 8841
TIME...MOT...LOC 0726Z 004DEG 13KT 3062 8843 3062 8872 3077 8886
24/RRThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 8:56 PM CDT | Special Marine Warning | LIX | 94 min | |
| Jul 12, 10:13 PM CDT | Special Marine Warning | LIX | 92 min | |
| Jul 13, 2:56 AM CDT | Special Marine Warning | LIX | 34 min | |
| Jul 13, 3:57 AM CDT | Special Marine Warning | LIX | 33 min | |
| Jul 13, 4:29 AM CDT | Special Marine Warning | LIX | 31 min | |
| Jul 13, 5:40 AM CDT | Special Marine Warning | LIX | 22 min | |
| Jul 13, 5:55 AM CDT | Special Weather Statement | LIX | Orleans | 35 min |
| Jul 13, 6:59 AM CDT | Special Weather Statement | LIX | Orleans | 31 min |
| Jul 13, 7:01 AM CDT | Special Marine Warning | LIX | 44 min | |
| Jul 13, 3:28 PM CDT | Special Weather Statement | LIX | Jefferson | 32 min |
| Jul 13, 3:38 PM CDT | Special Marine Warning | LIX | 37 min | |
| Jul 13, 3:40 PM CDT | Heat Advisory | LIX | Assumption, East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, Saint Bernard and 7 more | 28 hr |
| Jul 13, 4:19 PM CDT | Special Weather Statement | LIX | Lafourche | 41 min |
| Jul 13, 5:13 PM CDT | Special Weather Statement | LIX | Jefferson | 32 min |
| Jul 13, 5:28 PM CDT | Special Weather Statement | LIX | Saint Charles | 47 min |
| Jul 13, 5:39 PM CDT | Special Weather Statement | LIX | Iberville | 36 min |
| Jul 13, 6:03 PM CDT | Special Weather Statement | LIX | Lafourche | 27 min |
| Jul 13, 6:10 PM CDT | Severe Thunderstorm Warning | LIX | Lafourche, Terrebonne | 35 min |
| Jul 13, 6:41 PM CDT | Special Marine Warning | LIX | 49 min | |
| Jul 13, 6:45 PM CDT | Special Weather Statement | LIX | Terrebonne | 30 min |
| Jul 12, 7:53 PM CDT | Special Weather Statement | LIX | Amite | 37 min |
| Jul 12, 9:17 PM CDT | Special Weather Statement | LIX | Jackson | 28 min |
| Jul 13, 2:09 AM CDT | Special Weather Statement | LIX | Jackson | 66 min |
| Jul 13, 2:26 AM CDT | Special Weather Statement | LIX | Jackson | 34 min |
| Jul 13, 5:53 AM CDT | Special Weather Statement | LIX | Harrison | 37 min |
| Jul 13, 6:25 AM CDT | Special Weather Statement | LIX | Hancock | 35 min |
| Jul 13, 6:56 AM CDT | Flash Flood Warning | LIX | Hancock, Harrison, Pearl River | 2 hr |
| Jul 13, 7:55 AM CDT | Flash Flood Warning | LIX | Jackson | 110 min |
Nearby
Excessive Heat Warnings in Louisiana, 2020Every excessive heat warning in 2020
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.