Alert archive / Alabama / Frost Advisories in 2017
Frost Advisory 1, NWS Huntsville, AL
NWS Huntsville, AL issued this frost advisory at Mar 10, 2017, 2:43 PM CST for 11 counties in Alabama. It took effect at Mar 11, 2017, 3:00 AM CST. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Mar 10, 2017, 2:43 PM CST (20:43 UTC)
- In effect from
- Mar 11, 2017, 3:00 AM CST
- Expired
- Mar 11, 2017, 7:00 AM CST
- In force
- 4 hr
- Issued by
- NWS Huntsville, AL
Counties Colbert County, AL, Cullman County, AL, DeKalb County, AL, Franklin County, AL, Jackson County, AL, Lauderdale County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marshall County, AL, Morgan County, AL
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 8.7 hours before the alert went out and 156 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
- 1545 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- -71 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this frost advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Huntsville, AL wrote its last area forecast discussion before this frost advisory went out at Mar 10, 11:15 AM CST, 3 hours 28 minutes earlier.
Area forecast discussion, Mar 10, 11:15 AM CST, 3 hours 28 minutes before
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</html>Hazardous weather outlook, Mar 10, 1:58 PM CST, 45 minutes before
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Local storm report, Mar 10, 10:54 AM CST, 3 hours 49 minutes before
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</html>The office that day
Everything else NWS Huntsville, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 8:26 PM CST | Special Weather Statement | HUN | Lawrence | 34 min |
| Mar 9, 11:11 PM CST | Special Weather Statement | HUN | Colbert | 34 min |
| Mar 9, 11:33 PM CST | Special Weather Statement | HUN | Limestone | 27 min |
| Mar 9, 11:43 PM CST | Special Weather Statement | HUN | Franklin | 32 min |
| Mar 9, 11:50 PM CST | Severe Thunderstorm Warning | HUN | Colbert, Lauderdale, Lawrence, Limestone, Madison | 55 min |
| Mar 9, 11:55 PM CST | Severe Thunderstorm Warning | HUN | Jackson, Madison | 65 min |
| Mar 10, 12:27 AM CST | Severe Thunderstorm Warning | HUN | DeKalb, Jackson | 49 min |
| Mar 10, 12:34 AM CST | Special Weather Statement | HUN | Morgan | 26 min |
| Mar 10, 12:45 AM CST | Severe Thunderstorm Warning | HUN | Madison, Marshall, Morgan | 30 min |
| Mar 10, 12:47 AM CST | Severe Thunderstorm Warning | HUN | Cullman, Morgan | 58 min |
| Mar 10, 12:52 AM CST | Special Weather Statement | HUN | Lawrence | 23 min |
| Mar 10, 1:14 AM CST | Severe Thunderstorm Warning | HUN | Cullman, DeKalb, Jackson, Marshall, Morgan | 36 min |
| Mar 10, 1:34 AM CST | Special Weather Statement | HUN | Cullman | 11 min |
| Mar 10, 1:41 AM CST | Special Weather Statement | HUN | Cullman | 34 min |
| Mar 10, 1:55 AM CST | Special Weather Statement | HUN | Cullman | 35 min |
| Mar 9, 10:11 PM CST | Special Weather Statement | HUN | Moore | 34 min |
| Mar 9, 11:30 PM CST | Severe Thunderstorm Warning | HUN | Lincoln, Moore | 47 min |
| Mar 10, 2:43 PM CST | Freeze Warning | HUN | Franklin, Lincoln, Moore | 16 hr |
Nearby
Frost Advisories in Alabama, 2017Every frost 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.