Alert archive / Alabama / Areal Flood Warnings in 2015

Areal Flood Warning 12, NWS Mobile, AL

December 23, 2015Covington County, Crenshaw County, Alabama; Okaloosa County, Florida

NWS Mobile, AL issued this areal flood warning at Dec 23, 2015, 11:00 PM CST for Covington County, Crenshaw County, Alabama; Okaloosa County, Florida. It was in force for 12 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: Dec 23, 2015, 11:00 PM CST (05:00 UTC)
Expired: Dec 24, 2015, 11:00 AM CST
In force: 12 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Covington County, AL, Crenshaw County, AL, Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 88 km from the middle of the area, began a volume at 05:02 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 00:00Z, 5.0 hours before the alert went out and 221 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: 309 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 738 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 328 m²/s²
0-3 km storm-relative helicity: 466 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood 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 areal flood warning went out at Dec 23, 6:49 PM CST, 4 hours 11 minutes earlier.

Area forecast discussion, Dec 23, 6:49 PM CST, 4 hours 11 minutes before

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Hazardous weather outlook, Dec 23, 7:51 PM CST, 3 hours 9 minutes before

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In the hours before

Special weather statement, Dec 23, 5:03 PM CST, 5 hours 57 minutes before

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Special weather statement, Dec 23, 9:05 PM CST, 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
Dec 23, 7:29 PM CST	River Flood Warning	MOB	Baldwin	43 hr
Dec 23, 9:05 PM CST	Special Weather Statement	MOB	Covington	25 min
Dec 24, 5:22 AM CST	Areal Flood Advisory	MOB	Mobile	113 min
Dec 24, 6:53 AM CST	Areal Flood Advisory	MOB	Baldwin, Escambia	3 hr
Dec 24, 7:30 AM CST	Special Weather Statement	MOB	Conecuh	60 min
Dec 24, 8:04 AM CST	Areal Flood Advisory	MOB	Escambia	3 hr
Dec 24, 8:27 AM CST	Areal Flood Advisory	MOB	Conecuh	3 hr
Dec 24, 8:46 AM CST	River Flood Warning	MOB	Covington, Escambia	61 hr
Dec 24, 9:21 AM CST	River Flood Warning	MOB	Covington	4 days
Dec 24, 9:28 AM CST	Flash Flood Warning	MOB	Conecuh, Escambia	4 hr
Dec 24, 9:55 AM CST	Areal Flood Advisory	MOB	Monroe	3 hr
Dec 24, 10:02 AM CST	Areal Flood Advisory	MOB	Butler	3 hr
Dec 24, 11:48 AM CST	Areal Flood Warning	MOB	Monroe	6 hr
Dec 24, 12:27 PM CST	Dense Fog Advisory	MOB	Baldwin, Mobile	21 hr
Dec 24, 1:04 PM CST	Areal Flood Advisory	MOB	Covington, Crenshaw	3 hr
Dec 24, 1:22 PM CST	Special Weather Statement	MOB	Covington	38 min
Dec 24, 1:28 PM CST	Areal Flood Warning	MOB	Conecuh, Escambia	6 hr
Dec 24, 1:50 PM CST	Flash Flood Warning	MOB	Covington, Crenshaw	3 hr
Dec 24, 2:18 PM CST	Areal Flood Warning	MOB	Butler	6 hr
Dec 24, 2:49 PM CST	Flash Flood Warning	MOB	Monroe	4 hr
Dec 24, 3:07 PM CST	Flash Flood Warning	MOB	Wilcox	4 hr
Dec 24, 4:44 PM CST	Flash Flood Warning	MOB	Covington, Crenshaw	3 hr
Dec 24, 5:22 PM CST	Flash Flood Warning	MOB	Conecuh	3 hr
Dec 24, 9:11 AM CST	River Flood Warning	MOB	George, Greene, Perry	10 days
Dec 24, 9:11 AM CST	River Flood Warning	MOB	George, Greene, Wayne	11 days

Nearby

Areal Flood Warnings in Alabama, 2015 Areal Flood Warnings in Florida, 2015 Every areal flood warning in 2015

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.