Alert archive / Alabama / Excessive Heat Warnings in 2023
Excessive Heat Warning 9, NWS Mobile, AL
NWS Mobile, AL issued this excessive heat warning at Aug 12, 2023, 2:26 PM CDT for 12 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 5 counties in Mississippi. It took effect at Aug 13, 2023, 10:00 AM CDT. It was in force for 9 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
- Aug 12, 2023, 2:26 PM CDT (19:26 UTC)
- In effect from
- Aug 13, 2023, 10:00 AM CDT
- Expired
- Aug 13, 2023, 7:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Mobile, AL
Counties Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 83 km from the middle of the area, began a volume at 19:28 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, 7.4 hours before the alert went out and 223 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
- 2553 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 808 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -97 m²/s²
- 0-3 km storm-relative helicity
- -81 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 Mobile, AL wrote its last area forecast discussion before this excessive heat warning went out at Aug 12, 12:32 PM CDT, 1 hour 54 minutes earlier.
Area forecast discussion, Aug 12, 12:32 PM CDT, 1 hour 54 minutes before
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</html>The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 7:22 PM CDT | Special Marine Warning | MOB | 113 min | |
| Aug 11, 7:43 PM CDT | Special Weather Statement | MOB | Crenshaw | 47 min |
| Aug 11, 9:10 PM CDT | Special Weather Statement | MOB | Covington | 35 min |
| Aug 11, 10:07 PM CDT | Special Weather Statement | MOB | Butler | 53 min |
| Aug 12, 3:38 AM CDT | Excessive Heat Watch | MOB | Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more | 11 hr |
| Aug 12, 2:59 PM CDT | Special Marine Warning | MOB | 46 min | |
| Aug 12, 3:28 PM CDT | Special Weather Statement | MOB | Covington | 62 min |
| Aug 12, 4:04 PM CDT | Special Marine Warning | MOB | 86 min | |
| Aug 12, 4:37 PM CDT | Special Marine Warning | MOB | 53 min | |
| Aug 11, 7:23 PM CDT | Special Weather Statement | MOB | Okaloosa | 97 min |
| Aug 12, 4:02 PM CDT | Special Weather Statement | MOB | Okaloosa | 43 min |
| Aug 12, 4:12 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa | 48 min |
| Aug 12, 4:39 PM CDT | Special Weather Statement | MOB | Okaloosa | 51 min |
| Aug 12, 4:43 PM CDT | Special Weather Statement | MOB | Okaloosa | 47 min |
| Aug 12, 5:12 PM CDT | Severe Thunderstorm Warning | MOB | Okaloosa | 33 min |
| Aug 12, 5:36 PM CDT | Special Weather Statement | MOB | Okaloosa | 39 min |
| Aug 12, 6:21 PM CDT | Special Weather Statement | MOB | Santa Rosa | 39 min |
Nearby
Excessive Heat Warnings in Alabama, 2023Excessive Heat Warnings in Mississippi, 2023Excessive Heat Warnings in Florida, 2023Every excessive heat warning in 2023
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.