Alert archive / Mississippi / Heat Advisories in 2020

Heat Advisory 5, NWS Mobile, AL

July 13, 2020Baldwin County, Mobile County, Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 4 counties in Mississippi

NWS Mobile, AL issued this heat advisory at Jul 13, 2020, 2:29 PM CDT for Baldwin County, Mobile County, Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 4 counties in Mississippi. It took effect at Jul 14, 2020, 10:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Jul 13, 2020, 2:29 PM CDT (19:29 UTC)
In effect from: Jul 14, 2020, 10:00 AM CDT
Expired: Jul 14, 2020, 7:00 PM CDT
In force: 9 hr
Issued by: NWS Mobile, AL

Counties Baldwin County, AL, Mobile County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS

The radar

The Mobile radar (KMOB), 25 km from the middle of the area, began a volume at 19:31 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, 7.5 hours before the alert went out and 172 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: 3369 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 676 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat advisory 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 heat advisory went out at Jul 13, 12:34 PM CDT, 1 hour 55 minutes earlier.

Area forecast discussion, Jul 13, 12:34 PM CDT, 1 hour 55 minutes before

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The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 12, 7:07 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile, Washington	53 min
Jul 12, 7:28 PM CDT	Special Weather Statement	MOB	Washington	47 min
Jul 12, 7:33 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	72 min
Jul 12, 7:35 PM CDT	Special Marine Warning	MOB		85 min
Jul 12, 8:14 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	46 min
Jul 12, 8:31 PM CDT	Areal Flood Advisory	MOB	Baldwin, Mobile	3 hr
Jul 12, 8:39 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	51 min
Jul 12, 8:44 PM CDT	Special Weather Statement	MOB	Mobile	46 min
Jul 12, 8:45 PM CDT	Special Marine Warning	MOB		90 min
Jul 12, 9:01 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	44 min
Jul 12, 9:17 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	13 min
Jul 12, 9:25 PM CDT	Special Marine Warning	MOB		2 hr
Jul 12, 10:18 PM CDT	Special Marine Warning	MOB		65 min
Jul 12, 10:20 PM CDT	Special Marine Warning	MOB		85 min
Jul 12, 11:22 PM CDT	Special Marine Warning	MOB		83 min
Jul 13, 5:48 AM CDT	Special Marine Warning	MOB		87 min
Jul 13, 5:49 AM CDT	Special Weather Statement	MOB	Baldwin	26 min
Jul 13, 6:47 AM CDT	Special Marine Warning	MOB		71 min
Jul 13, 3:39 PM CDT	Special Marine Warning	MOB		29 min
Jul 13, 3:54 PM CDT	Special Weather Statement	MOB	Mobile	51 min
Jul 13, 5:10 PM CDT	Special Weather Statement	MOB	Mobile	50 min
Jul 13, 5:16 PM CDT	Special Marine Warning	MOB		59 min
Jul 13, 5:34 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	17 min
Jul 13, 5:57 PM CDT	Special Marine Warning	MOB		21 min
Jul 12, 7:28 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	32 min
Jul 12, 9:49 PM CDT	Special Weather Statement	MOB	Santa Rosa	41 min
Jul 12, 10:04 PM CDT	Special Weather Statement	MOB	Santa Rosa	41 min
Jul 13, 3:36 PM CDT	Special Weather Statement	MOB	Okaloosa	39 min
Jul 13, 5:08 PM CDT	Special Weather Statement	MOB	Okaloosa	52 min
Jul 12, 7:04 PM CDT	Special Weather Statement	MOB	Wayne	56 min
Jul 12, 7:59 PM CDT	Special Weather Statement	MOB	George, Greene, Perry, Stone	61 min
Jul 13, 1:47 AM CDT	Special Weather Statement	MOB	George	43 min

Nearby

Heat Advisories in Mississippi, 2020 Heat Advisories in Florida, 2020 Heat Advisories in Alabama, 2020 Every heat advisory 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; radar from the NEXRAD Level II archive.