Alert archive / Alabama / Tropical Storm Warnings in 2017

Tropical Storm Warning 1016, NWS Mobile, AL

October 6, 201712 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 5 counties in Mississippi

NWS Mobile, AL issued this tropical storm warning at Oct 6, 2017, 4:23 PM CDT for 12 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 5 counties in Mississippi. It was in force for 42 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: Oct 6, 2017, 4:23 PM CDT (21:23 UTC)
Expired: Oct 8, 2017, 10:35 AM CDT
In force: 42 hr
Issued by: NWS Mobile, AL

Counties Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 83 km from the middle of the area, began a volume at 21:22 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, 9.4 hours before the alert went out and 223 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1019 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tropical storm 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 tropical storm warning went out at Oct 6, 4:17 PM CDT, 6 minutes earlier.

Area forecast discussion, Oct 6, 4:17 PM CDT, 6 minutes before

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Hazardous weather outlook, Oct 6, 11:15 AM CDT, 5 hours 8 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
Oct 5, 7:01 PM CDT	Rip Current Statement	MOB	Baldwin, Mobile	4 days
Oct 5, 10:17 PM CDT	Tropical Storm Watch	MOB	Baldwin, Clarke, Conecuh, Covington, Escambia, Mobile and 2 more	18 hr
Oct 5, 11:11 PM CDT	Storm Surge Watch	MOB	Baldwin, Mobile	17 hr
Oct 6, 10:38 AM CDT	Hurricane Warning	MOB	Baldwin, Mobile, Washington	43 hr
Oct 6, 10:38 AM CDT	Storm Surge Warning	MOB	Baldwin, Mobile	48 hr
Oct 6, 2:55 PM CDT	Flash Flood Watch	MOB	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more	43 hr
Oct 6, 10:38 AM CDT	Hurricane Watch	MOB	Escambia, Okaloosa, Santa Rosa	36 hr

Nearby

Tropical Storm Warnings in Alabama, 2017 Tropical Storm Warnings in Mississippi, 2017 Tropical Storm Warnings in Florida, 2017 Every tropical storm warning 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.