Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Mobile, AL

July 27, 2017Butler County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 27, 2017, 6:02 PM CDT for Butler County, Alabama. It was in force for 58 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: Jul 27, 2017, 6:02 PM CDT (23:02 UTC)
Expired: Jul 27, 2017, 7:00 PM CDT
In force: 58 min
Issued by: NWS Mobile, AL

County Butler County, AL

The radar

The Maxwell AFB radar (KMXX), 111 km from the middle of the area, began a volume at 23:03 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

Birmingham, AL (KBMX), launched 12:00Z, 11.0 hours before the alert went out and 145 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: 1507 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 873 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 27, 5:52 PM CDT, 10 minutes earlier.

Area forecast discussion, Jul 27, 5:52 PM CDT, 10 minutes before

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Hazardous weather outlook, Jul 27, 5:32 AM CDT, 12 hours 30 minutes before

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In the hours before

Special weather statement, Jul 27, 2:27 PM CDT, 3 hours 35 minutes before

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Special weather statement, Jul 27, 3:56 PM CDT, 2 hours 6 minutes before

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Special weather statement, Jul 27, 5:53 PM CDT, 9 minutes before

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Special weather statement, Jul 27, 5:58 PM CDT, 4 minutes before

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Special weather statement, Jul 27, 6:02 PM CDT, 0 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 26, 7:21 PM CDT	Special Marine Warning	MOB		54 min
Jul 26, 7:54 PM CDT	Special Marine Warning	MOB		96 min
Jul 26, 8:47 PM CDT	Special Weather Statement	MOB	Baldwin	43 min
Jul 26, 10:31 PM CDT	Special Marine Warning	MOB		59 min
Jul 26, 10:55 PM CDT	Special Marine Warning	MOB		65 min
Jul 27, 2:27 PM CDT	Special Weather Statement	MOB	Mobile	33 min
Jul 27, 2:39 PM CDT	Special Marine Warning	MOB		66 min
Jul 27, 3:53 PM CDT	Areal Flood Advisory	MOB	Mobile	112 min
Jul 27, 3:56 PM CDT	Special Weather Statement	MOB	Mobile	34 min
Jul 27, 5:56 PM CDT	Special Marine Warning	MOB		64 min
Jul 27, 6:19 PM CDT	Special Marine Warning	MOB		56 min
Jul 26, 7:16 PM CDT	Special Weather Statement	MOB	Okaloosa, Santa Rosa	44 min
Jul 26, 7:59 PM CDT	Special Weather Statement	MOB	Escambia, Santa Rosa	46 min
Jul 27, 5:53 PM CDT	Special Weather Statement	MOB	Escambia	52 min
Jul 27, 5:58 PM CDT	Special Weather Statement	MOB	Escambia	47 min
Jul 27, 6:14 PM CDT	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	44 min
Jul 27, 6:34 PM CDT	Special Weather Statement	MOB	Santa Rosa	41 min
Jul 27, 6:46 PM CDT	Areal Flood Advisory	MOB	Escambia, Santa Rosa	119 min
Jul 27, 6:54 PM CDT	Special Weather Statement	MOB	Escambia	51 min

Nearby

Special Weather Statements in Alabama, 2017 Every special weather statement in 2017

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.