Alert archive / Alabama / Areal Flood Warnings in 2016

Areal Flood Warning 6, NWS Mobile, AL

March 17, 20169 counties in Alabama; 5 counties in Mississippi

NWS Mobile, AL issued this areal flood warning at Mar 17, 2016, 6:22 PM CDT for 9 counties in Alabama; 5 counties in Mississippi. 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: Mar 17, 2016, 6:22 PM CDT (23:22 UTC)
Expired: Mar 18, 2016, 6:15 AM CDT
In force: 12 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 74 km from the middle of the area, began a volume at 23:25 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, 11.4 hours before the alert went out and 197 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: 1853 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 644 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.4

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 Mar 17, 4:16 PM CDT, 2 hours 6 minutes earlier.

Area forecast discussion, Mar 17, 4:16 PM CDT, 2 hours 6 minutes before

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Hazardous weather outlook, Mar 17, 4:19 PM CDT, 2 hours 3 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
419 PM CDT THU MAR 17 2016

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-182130-
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-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-WAYNE-PERRY-GREENE-STONE-GEORGE-
419 PM CDT THU MAR 17 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ALABAMA...SOUTHWEST ALABAMA...NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A FEW STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE. THE PRIMARY
THREAT WILL BE LARGE HAIL. OTHER HAZARDS IN STRONG TO SEVERE
STORMS...WILL BE BRIEF STRONG WIND GUSTS...FREQUENT
LIGHTNING...AND VISIBILITY REDUCING HEAVY RAIN.

FORECASTS INDICATE THAT THE DEVELOPING WEST TO EAST BAND OF
STORMS TO THE NORTH OF THE COAST...SWEEPS SOUTHEAST ACROSS THE COAST
AND OFFSHORE THIS EVENING. FOLLOWING THE PASSAGE OF THESE STORMS...A
BRIEF BREAK IN THE THUNDERSTORM ACTIVITY IS POSSIBLE UNTIL FRIDAY AS
STORM COVERAGE INCREASES YET AGAIN.

SEVERAL AREA RIVERS ARE EXPERIENCING FLOODING....SEE THE LATEST
RIVER FORECAST FOR MORE INFORMATION.

THERE IS A MODERATE RISK OF RIP CURRENTS ALONG THE BEACHES OF
SOUTHWEST ALABAMA AND THE NORTHWEST FLORIDA PANHANDLE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SHOWERS AND THUNDERSTORMS REMAIN IN THE FORECAST FRIDAY THROUGH
SATURDAY. SOME OF THE STORMS COULD BE STRONG TO BRIEFLY SEVERE.
LOCALLY HEAVY RAIN IS ALSO POSSIBLE.

SEVERAL AREA RIVERS ARE EXPERIENCING FLOODING....SEE THE LATEST
RIVER FORECAST FOR MORE INFORMATION.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF SKYWARN SEVERE STORM SPOTTER NETWORKS WILL BE
POSSIBLE ON AN ISOLATED BASIS THROUGH SATURDAY.

GMZ630>635-650-655-670-675-182130-
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-
419 PM CDT THU MAR 17 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE COASTAL
WATERS OF ALABAMA AND NORTHWEST FLORIDA AND THE COASTAL WATERS OF
ALABAMA AND NORTHWEST FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A FEW STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE. THE PRIMARY
THREAT WILL BE LARGE HAIL. OTHER HAZARDS IN AND NEAR STRONG TO
SEVERE MARINE STORMS WILL BE...LOCALLY HIGHER
WINDS...WAVES...SEAS...FREQUENT LIGHTNING...AND VISIBILITY REDUCING
HEAVY RAIN.

FORECASTS INDICATE THAT THE DEVELOPING WEST TO EAST BAND OF
STORMS TO THE NORTH OF THE COAST...SWEEPS SOUTHEAST ACROSS THE COAST
AND OFFSHORE THIS EVENING. FOLLOWING THE PASSAGE OF THESE STORMS...A
BRIEF BREAK IN THE THUNDERSTORM ACTIVITY IS POSSIBLE UNTIL FRIDAY AS
STORM COVERAGE INCREASES YET AGAIN.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

HAZARDS IN AND NEAR MARINE STORMS WILL BE LOCALLY HIGHER
WINDS...WAVES...SEAS...FREQUENT LIGHTNING...AND VISIBILITY REDUCING
HEAVY RAIN THROUGH SATURDAY.

A STRONG COLD FRONTAL PASSAGE BRINGS A WIND SHIFT ON SATURDAY...BRINGING
A QUICK END TO THE RAIN CHANCES BY SATURDAY NIGHT. FOLLOWING THE
FRONTAL PASSAGE...STRONG OFFSHORE FLOW SETS UP RESULTING IN BUILDING
SEAS AND CHOPPY TO ROUGH CONDITIONS ON PROTECTED WATERWAYS SATURDAY
NIGHT...CONTINUING THROUGH EARLY SUNDAY EVENING. SMALL CRAFT ADVISORY
CONDITIONS POSSIBLE FOR THE LATTER HALF OF THE WEEKEND.

In the hours before

Local storm report, Mar 17, 3:31 PM CDT, 2 hours 51 minutes before

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Special weather statement, Mar 17, 3:45 PM CDT, 2 hours 37 minutes before

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Special weather statement, Mar 17, 4:13 PM CDT, 2 hours 9 minutes before

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Local storm report, Mar 17, 4:59 PM CDT, 1 hour 23 minutes before

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Special weather statement, Mar 17, 5:16 PM CDT, 1 hour 6 minutes before

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Special weather statement, Mar 17, 6:12 PM CDT, 10 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
Mar 17, 6:14 AM CDT	Special Weather Statement	MOB	Monroe	46 min
Mar 17, 6:50 AM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe	40 min
Mar 17, 7:12 AM CDT	Special Weather Statement	MOB	Escambia	63 min
Mar 17, 7:26 AM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Monroe	49 min
Mar 17, 7:59 AM CDT	Special Weather Statement	MOB	Covington	31 min
Mar 17, 10:20 AM CDT	Special Marine Warning	MOB		25 min
Mar 17, 11:14 AM CDT	Special Marine Warning	MOB		46 min
Mar 17, 1:32 PM CDT	Special Marine Warning	MOB		58 min
Mar 17, 1:39 PM CDT	Special Marine Warning	MOB		66 min
Mar 17, 1:43 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	47 min
Mar 17, 2:09 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	51 min
Mar 17, 2:11 PM CDT	Special Marine Warning	MOB		49 min
Mar 17, 2:14 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	46 min
Mar 17, 2:17 PM CDT	Special Marine Warning	MOB		28 min
Mar 17, 2:31 PM CDT	Special Weather Statement	MOB	Baldwin	44 min
Mar 17, 3:28 PM CDT	Special Weather Statement	MOB	Baldwin	32 min
Mar 17, 3:53 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	37 min
Mar 17, 4:08 PM CDT	Severe Thunderstorm Warning	MOB	Washington	39 min
Mar 17, 4:09 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin	36 min
Mar 17, 4:13 PM CDT	Special Weather Statement	MOB	Monroe	47 min
Mar 17, 4:32 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Conecuh, Monroe, Wilcox	43 min
Mar 17, 6:32 PM CDT	Flash Flood Watch	MOB	Baldwin, Choctaw, Clarke, Mobile, Washington	33 hr
Mar 17, 6:35 PM CDT	Special Weather Statement	MOB	Washington	55 min
Mar 17, 11:05 AM CDT	Special Weather Statement	MOB	Santa Rosa	55 min
Mar 17, 2:42 PM CDT	Special Weather Statement	MOB	Escambia	48 min
Mar 17, 2:47 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	16 min
Mar 17, 12:17 PM CDT	Severe Thunderstorm Warning	MOB	Perry	58 min
Mar 17, 12:52 PM CDT	Severe Thunderstorm Warning	MOB	George, Greene	38 min
Mar 17, 1:29 PM CDT	Special Weather Statement	MOB	George	46 min
Mar 17, 2:25 PM CDT	Special Weather Statement	MOB	Perry	35 min
Mar 17, 3:26 PM CDT	Special Weather Statement	MOB	Greene	64 min
Mar 17, 3:34 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Wayne	41 min
Mar 17, 3:45 PM CDT	Special Weather Statement	MOB	Perry	45 min
Mar 17, 4:21 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	24 min
Mar 17, 5:16 PM CDT	Special Weather Statement	MOB	George	44 min
Mar 17, 5:44 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	61 min
Mar 17, 5:59 PM CDT	Severe Thunderstorm Warning	MOB	Perry, Stone	47 min
Mar 17, 6:07 PM CDT	Severe Thunderstorm Warning	MOB	George	68 min
Mar 17, 6:12 PM CDT	Special Weather Statement	MOB	Greene	33 min
Mar 17, 6:44 PM CDT	Severe Thunderstorm Warning	MOB	George	31 min
Mar 17, 6:57 PM CDT	Special Weather Statement	MOB	Stone	33 min

Nearby

Areal Flood Warnings in Alabama, 2016 Areal Flood Warnings in Mississippi, 2016 Every areal flood warning 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.