Alert archive / Alabama / Mesoscale Discussions in 2016
Mesoscale Discussion 229
The Storm Prediction Center issued this mesoscale discussion at Mar 17, 2016, 5:01 PM CDT for 13 counties in Alabama; 5 counties in Florida; 13 counties in Georgia. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Mar 17, 2016, 5:01 PM CDT (22:01 UTC)
- Expired
- Mar 17, 2016, 6:30 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 31 counties
Baldwin County, AL, Butler County, AL, Coffee County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Monroe County, AL, Pike County, AL, Escambia County, FL, Holmes County, FL, Jackson County, FL, Okaloosa County, FL, Santa Rosa County, FL, Baker County, GA, Calhoun County, GA, Clay County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Lee County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA
The radar
The Ft Rucker radar (KEOX), 74 km from the middle of the area, began a volume at 22:01 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, 10.0 hours before the alert went out and 208 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
- 2708 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
526 ACUS11 KWNS 172201 SWOMCD SPC MCD 172201 GAZ000-FLZ000-ALZ000-172330- MESOSCALE DISCUSSION 0229 NWS STORM PREDICTION CENTER NORMAN OK 0501 PM CDT THU MAR 17 2016 AREAS AFFECTED...SRN AL...FL PANHANDLE...SWRN GA CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE VALID 172201Z - 172330Z PROBABILITY OF WATCH ISSUANCE...40 PERCENT SUMMARY...LARGE HAIL MAY ACCOMPANY THE STRONGEST UPDRAFTS ACROSS PORTIONS OF SRN AL/GA/FL PANHANDLE. DISCUSSION...WEAK LOW-LEVEL WARM ADVECTION ATOP OLD OUTFLOW BOUNDARY APPEARS MOSTLY RESPONSIBLE FOR CONVECTION ACROSS SRN AL/FL PANHANDLE INTO SWRN GA. NUMEROUS THUNDERSTORMS HAVE EVOLVED ACROSS THIS REGION AHEAD OF MORE SIGNIFICANT MCS THAT IS PROGRESSING ACROSS MS. LATEST MRMS DATA SUGGESTS HAIL NEAR 1 INCH IS NOTED IN THE MOST ROBUST UPDRAFTS...HOWEVER WEAKER LAPSE RATES SHOULD LIMIT SEVERE THREAT ACROSS THIS REGION. WILL CONTINUE TO MONITOR BUT ONGOING ACTIVITY MAY NOT WARRANT WW ACROSS THIS REGION. ..DARROW/GOSS.. 03/17/2016 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...FFC...TAE...BMX...MOB... LAT...LON 31858766 31888384 30928412 30328788 31858766
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 7:44 AM CDT | Mesoscale Discussion | SPC | Baldwin, Butler, Clarke, Coffee, Conecuh, Covington and 7 more | 2 hr |
| Mar 17, 11:14 AM CDT | Mesoscale Discussion | SPC | Baldwin, Mobile | 2 hr |
| Mar 17, 1:19 PM CDT | Severe Thunderstorm Watch | SPC | Baldwin, Choctaw, Clarke, Mobile, Washington | 9 hr |
| Mar 17, 6:22 PM CDT | Mesoscale Discussion | SPC | Baldwin, Choctaw, Clarke, Mobile, Washington | 53 min |
Nearby
Mesoscale Discussions in Alabama, 2016Mesoscale Discussions in Georgia, 2016Mesoscale Discussions in Florida, 2016Every mesoscale discussion 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.