Alert archive / Alabama / Winter Weather Advisories in 2017
Winter Weather Advisory 1, NWS Mobile, AL
NWS Mobile, AL issued this winter weather advisory at Jan 5, 2017, 3:06 PM CST for 12 counties in Alabama; 5 counties in Mississippi. It took effect at Jan 6, 2017, 12:00 PM CST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Jan 5, 2017, 3:06 PM CST (21:06 UTC)
- In effect from
- Jan 6, 2017, 12:00 PM CST
- Expired
- Jan 6, 2017, 11:31 PM CST
- In force
- 12 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, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 86 km from the middle of the area, began a volume at 21:05 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, 9.1 hours before the alert went out and 225 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3163 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 312 m²/s²
- 0-3 km storm-relative helicity
- 364 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory 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 winter weather advisory went out at Jan 5, 11:29 AM CST, 3 hours 37 minutes earlier.
Area forecast discussion, Jan 5, 11:29 AM CST, 3 hours 37 minutes before
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</html>Hazardous weather outlook, Jan 5, 5:59 AM CST, 9 hours 7 minutes before
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</html>The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 3:20 AM CST | Small Craft Advisory | MOB | 3 days |
Nearby
Winter Weather Advisories in Alabama, 2017Winter Weather Advisories in Mississippi, 2017Every winter weather advisory 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.