Alert archive / Alabama / Hard Freeze Warnings in 2015
Hard Freeze Warning 3, NWS Mobile, AL
NWS Mobile, AL issued this hard freeze warning at Feb 19, 2015, 4:39 AM CST for 9 counties in Alabama. It took effect at Feb 20, 2015, 2:00 AM CST. It was in force for 6 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
- Feb 19, 2015, 4:39 AM CST (10:39 UTC)
- In effect from
- Feb 20, 2015, 2:00 AM CST
- Expired
- Feb 20, 2015, 8:00 AM CST
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
Counties Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Monroe County, AL, Wilcox County, AL
The radar
The Mobile radar (KMOB), 147 km from the middle of the area, began a volume at 10:42 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, 10.7 hours before the alert went out and 177 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
- 2648 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this hard freeze 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 hard freeze warning went out at Feb 18, 9:18 PM CST, 7 hours 21 minutes earlier.
Area forecast discussion, Feb 18, 9:18 PM CST, 7 hours 21 minutes before
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</html>Hazardous weather outlook, Feb 18, 3:11 PM CST, 13 hours 28 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 |
|---|---|---|---|---|
| Feb 19, 2:25 PM CST | Fire Weather Watch | MOB | Butler, Clarke, Conecuh, Covington, Crenshaw, Escambia and 2 more | 16 hr |
Nearby
Hard Freeze Warnings in Alabama, 2015Hard Freeze Warnings in Florida, 2015Every hard freeze 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.