Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Mobile, AL

July 26, 2017Butler County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 26, 2017, 3:35 PM CDT for Butler County, Alabama. It was in force for 40 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 26, 2017, 3:35 PM CDT (20:35 UTC)
Expired
Jul 26, 2017, 4:15 PM CDT
In force
40 min
Issued by
NWS Mobile, AL

County Butler County, AL

The radar

The Maxwell AFB radar (KMXX), 131 km from the middle of the area, began a volume at 20:36 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, 8.6 hours before the alert went out and 153 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2017-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1729 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2017-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1729 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
961 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 26, 12:40 PM CDT, 2 hours 55 minutes earlier.

Area forecast discussion, Jul 26, 12:40 PM CDT, 2 hours 55 minutes before
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Hazardous weather outlook, Jul 26, 5:52 AM CDT, 9 hours 43 minutes before
Hazardous Weather Outlook
National Weather Service Mobile AL
552 AM CDT Wed Jul 26 2017

ALZ059-261>266-FLZ201>206-271100-
Escambia-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-
552 AM CDT Wed Jul 26 2017

This Hazardous Weather Outlook is for portions of south central
Alabama...southwest Alabama and northwest Florida.

.DAY ONE...Today and Tonight

Heat indices will range from 100 to 106 degrees this afternoon.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Heat indices will range from 100 to 107 degrees both Thursday and
Friday afternoons. Localized higher indices are possible along the
coast.

Gusty winds, frequent lightning, and locally heavy rains can be
expected with the stronger thunderstorms that develop each day.

.SPOTTER INFORMATION STATEMENT...

Activation of SkyWarn Severe Storm Spotter networks is not expected
through Tuesday.

GMZ630>635-650-655-670-675-271100-
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Perdido Bay-Pensacola Bay System-Choctawhatchee Bay-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Destin to Pensacola FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Destin to Pensacola FL from 20 to 60 NM-
552 AM CDT Wed Jul 26 2017

This Hazardous Weather Outlook is for portions of the coastal
waters of Alabama and northwest Florida.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Winds, waves and seas locally higher in and near scattered to
numerous thunderstorms over the weekend. Frequent lightning
activity likely in and near any of the stronger storms.

In the hours before

Special weather statement, Jul 26, 3:35 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 3:51 PM CDTSpecial Weather StatementMOBConecuh39 min
Jul 26, 4:08 PM CDTSpecial Weather StatementMOBWilcox52 min
Jul 26, 4:52 PM CDTSpecial Marine WarningMOB53 min
Jul 26, 4:56 PM CDTSpecial Weather StatementMOBBaldwin64 min
Jul 26, 5:02 PM CDTSpecial Marine WarningMOB58 min
Jul 26, 5:17 PM CDTSpecial Weather StatementMOBBaldwin58 min
Jul 26, 5:32 PM CDTSpecial Weather StatementMOBCovington, Crenshaw43 min
Jul 26, 5:40 PM CDTSpecial Marine WarningMOB65 min
Jul 26, 5:43 PM CDTSpecial Marine WarningMOB62 min
Jul 26, 6:23 PM CDTSpecial Weather StatementMOBCovington37 min
Jul 26, 6:32 PM CDTSpecial Marine WarningMOB58 min
Jul 26, 4:39 PM CDTSpecial Weather StatementMOBOkaloosa51 min
Jul 26, 5:25 PM CDTSpecial Weather StatementMOBOkaloosa50 min
Jul 26, 5:27 PM CDTSpecial Weather StatementMOBEscambia48 min

Nearby

Special Weather Statements in Alabama, 2017Every 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.