Alert archive / Texas / Mesoscale Discussions in 2016
Mesoscale Discussion 243
The Storm Prediction Center issued this mesoscale discussion at Mar 18, 2016, 8:53 PM CDT for 29 counties in Texas. It was in force for 67 min.
The area
The outline as issued.
The facts
- Issued
- Mar 18, 2016, 8:53 PM CDT (01:53 UTC)
- Expired
- Mar 18, 2016, 10:00 PM CDT
- In force
- 67 min
- Issued by
- the Storm Prediction Center
All 29 counties
Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Dimmit County, TX, Edwards County, TX, Fayette County, TX, Frio County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kinney County, TX, Llano County, TX, Maverick County, TX, Medina County, TX, Real County, TX, Travis County, TX, Uvalde County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 111 km from the middle of the area, began a volume at 01:54 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
Del Rio, TX (KDLF), launched 00:00Z, 1.9 hours before the alert went out and 159 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
- 2498 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1007 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
714 ACUS11 KWNS 190154 SWOMCD SPC MCD 190153 TXZ000-190300- MESOSCALE DISCUSSION 0243 NWS STORM PREDICTION CENTER NORMAN OK 0853 PM CDT FRI MAR 18 2016 AREAS AFFECTED...SCNTRL TX CONCERNING...SEVERE THUNDERSTORM WATCH 48... VALID 190153Z - 190300Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 48 CONTINUES. SUMMARY...HAIL REMAINS THE PRIMARY SEVERE THREAT WITH THUNDERSTORM CLUSTERS OVER SCNTRL TX. NEW WW IS NOT CURRENTLY ANTICIPATED ACROSS SCNTRL TX. DISCUSSION...GRADUALLY EXPANDING COMPLEX OF STORMS CONTINUES ITS SWD PROPAGATION ACROSS WW48. ERN-MOST PORTION OF THE LINE IS SURGING SOUTH AT ROUGHLY 25KT AND LEADING EDGE WILL EXIT THE WATCH SHORTLY AFTER 02Z. WRN SEGMENT OF SQUALL LINE IS SAGGING SOUTH AT ROUGHLY 15KT AND WILL MERGE WITH NUMEROUS SHOWERS/THUNDERSTORMS THAT ARE DEVELOPING AHEAD OF THIS ACTIVITY ALONG OUTFLOW THAT HAS SURGED ACROSS THE RIO GRANDE FROM MEXICAN CONVECTION. STEEP LAPSE RATES AND MODEST BUOYANCY CONTINUE TO SUPPORT HAIL GENERATION AND LATEST MRMS DATA EXHIBITS NUMEROUS HAIL CORES...AT TIMES SEVERE...WITH THE MORE ROBUST UPDRAFTS. WHILE THE LARGER COMPLEX OF STORMS WILL SOON PROPAGATE/FOCUS SOUTH OF THE WATCH...NEW WW IS NOT CURRENTLY ANTICIPATED. ..DARROW.. 03/19/2016 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...HGX...FWD...CRP...EWX...SJT... LAT...LON 29700095 31399750 29649665 27960013 29700095
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 7:06 PM CDT | Mesoscale Discussion | SPC | Bowie, Camp, Cass, Gregg, Harrison, Marion and 4 more | 54 min |
| Mar 18, 7:34 PM CDT | Mesoscale Discussion | SPC | Bee, Brooks, Duval, Goliad, Hidalgo, Jim Hogg and 7 more | 116 min |
| Mar 18, 11:11 PM CDT | Severe Thunderstorm Watch | SPC | Brooks, Duval, Hidalgo, Jim Hogg, Jim Wells, Kenedy and 4 more | 5 hr |
| Mar 19, 12:34 AM CDT | Mesoscale Discussion | SPC | Brooks, Hidalgo, Jim Wells, Kenedy, Kleberg, Nueces and 3 more | 86 min |
| Mar 19, 2:38 AM CDT | Mesoscale Discussion | SPC | Cameron, Hidalgo, Willacy | 67 min |
Nearby
Mesoscale Discussions in Texas, 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.