Alert archive / Alabama / Special Weather Statements in 2016

Special Weather Statement, NWS Birmingham, AL

April 1, 2016Macon County, Alabama

NWS Birmingham, AL issued this special weather statement at Apr 1, 2016, 11:03 AM CDT for Macon County, Alabama. It was in force for 27 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: Apr 1, 2016, 11:03 AM CDT (16:03 UTC)
Expired: Apr 1, 2016, 11:30 AM CDT
In force: 27 min
Issued by: NWS Birmingham, AL

County Macon County, AL

The radar

The Maxwell AFB radar (KMXX), 25 km from the middle of the area, began a volume at 16:06 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, 4.1 hours before the alert went out and 111 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: 144 J/kg
Mixed-layer CIN: -342 J/kg
Mixed-layer LCL: 719 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: -32 m²/s²
0-3 km storm-relative helicity: 145 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 Birmingham, AL wrote its last area forecast discussion before this special weather statement went out at Apr 1, 7:21 AM CDT, 3 hours 42 minutes earlier.

Area forecast discussion, Apr 1, 7:21 AM CDT, 3 hours 42 minutes before

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Hazardous weather outlook, Apr 1, 8:13 AM CDT, 2 hours 50 minutes before

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In the hours before

Special weather statement, Apr 1, 6:07 AM CDT, 4 hours 56 minutes before

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Special weather statement, Apr 1, 6:22 AM CDT, 4 hours 41 minutes before

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Special weather statement, Apr 1, 10:23 AM CDT, 40 minutes before

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Special weather statement, Apr 1, 10:24 AM CDT, 39 minutes before

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Special weather statement, Apr 1, 10:57 AM CDT, 6 minutes before

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Special weather statement, Apr 1, 11:03 AM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 7:02 PM CDT	Tornado Warning	BMX	Fayette	43 min
Mar 31, 7:22 PM CDT	Severe Thunderstorm Warning	BMX	Winston	9 min
Mar 31, 7:29 PM CDT	Tornado Warning	BMX	Marion, Walker	46 min
Mar 31, 7:34 PM CDT	Severe Thunderstorm Warning	BMX	Sumter	41 min
Mar 31, 7:56 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens	49 min
Mar 31, 7:59 PM CDT	Tornado Warning	BMX	Fayette, Walker	46 min
Mar 31, 8:05 PM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	55 min
Mar 31, 8:24 PM CDT	Severe Thunderstorm Warning	BMX	Hale	51 min
Mar 31, 9:17 PM CDT	Tornado Warning	BMX	Blount, Jefferson	32 min
Mar 31, 9:30 PM CDT	Areal Flood Advisory	BMX	Autauga, Dallas, Lowndes	3 hr
Mar 31, 10:42 PM CDT	Flash Flood Warning	BMX	Autauga, Dallas, Elmore, Lowndes, Montgomery	3 hr
Mar 31, 11:07 PM CDT	River Flood Warning	BMX	Montgomery	69 hr
Mar 31, 11:17 PM CDT	Severe Thunderstorm Warning	BMX	Elmore, Macon, Montgomery, Tallapoosa	43 min
Mar 31, 11:55 PM CDT	Special Weather Statement	BMX	Lee, Macon	65 min
Apr 1, 12:14 AM CDT	Special Weather Statement	BMX	Pickens	46 min
Apr 1, 1:03 AM CDT	Special Weather Statement	BMX	Perry	42 min
Apr 1, 1:53 AM CDT	Special Weather Statement	BMX	Shelby	37 min
Apr 1, 2:33 AM CDT	Special Weather Statement	BMX	Lowndes	27 min
Apr 1, 2:36 AM CDT	Flash Flood Warning	BMX	Autauga, Dallas, Elmore, Lowndes, Montgomery	3 hr
Apr 1, 3:06 AM CDT	Special Weather Statement	BMX	Jefferson	39 min
Apr 1, 3:29 AM CDT	Special Weather Statement	BMX	Lee, Macon, Tallapoosa	46 min
Apr 1, 4:38 AM CDT	Areal Flood Advisory	BMX	Lee	3 hr
Apr 1, 5:16 AM CDT	River Flood Warning	BMX	Sumter	45 hr
Apr 1, 6:07 AM CDT	Special Weather Statement	BMX	Barbour	38 min
Apr 1, 6:22 AM CDT	Special Weather Statement	BMX	Barbour	38 min
Apr 1, 10:23 AM CDT	Special Weather Statement	BMX	Montgomery	52 min
Apr 1, 10:24 AM CDT	Special Weather Statement	BMX	Lowndes	51 min
Apr 1, 10:52 AM CDT	Areal Flood Advisory	BMX	Autauga, Barbour, Bullock, Dallas, Elmore, Lee and 7 more	113 min
Apr 1, 10:57 AM CDT	Special Weather Statement	BMX	Autauga	48 min

Nearby

Special Weather Statements in Alabama, 2016 Every special weather statement in 2016

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.