Alert archive / Texas / Mesoscale Discussions in 2012
Mesoscale Discussion 805
The Storm Prediction Center issued this mesoscale discussion at May 13, 2012, 9:14 PM CDT for 5 counties in Texas. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- May 13, 2012, 9:14 PM CDT (02:14 UTC)
- Expired
- May 13, 2012, 10:15 PM CDT
- In force
- 61 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 95%
Counties Culberson County, TX, Jeff Davis County, TX, Loving County, TX, Reeves County, TX, Ward County, TX
The radar
The Midland/Odessa radar (KMAF), 153 km from the middle of the area, began a volume at 02:14 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Midland Regional, TX (KMAF), launched 00:00Z, 2.2 hours before the alert went out and 152 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
- 2 J/kg
- Mixed-layer CIN
- -196 J/kg
- Mixed-layer LCL
- 2009 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 219 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
149 ACUS11 KWNS 140215 SWOMCD SPC MCD 140214 TXZ000-NMZ000-140315- MESOSCALE DISCUSSION 0805 NWS STORM PREDICTION CENTER NORMAN OK 0914 PM CDT SUN MAY 13 2012 AREAS AFFECTED...FAR WEST TX CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 275... VALID 140214Z - 140315Z PROBABILITY OF WATCH ISSUANCE...95 PERCENT SUMMARY...NEW SEVERE THUNDERSTORM WATCH WILL BE REQUIRED ACROSS PARTS OF THE MIDLAND CWA OF FAR WEST TX SHORTLY. DISCUSSION...CLUSTER OF SEVERE THUNDERSTORMS CONTINUES TO PROPAGATE SSEWD ACROSS EDDY COUNTY NM TOWARD THE TX BORDER. FAVORABLE ESELY LOW LEVEL INFLOW WILL LIKELY ENHANCE THE LONGEVITY OF THIS ACTIVITY AS IT SPREADS ACROSS CULBERSON/REEVES/LOVING COUNTIES DURING THE NEXT HOUR. LARGE HAIL/WIND ARE EXPECTED ..DARROW/WEISS.. 05/14/2012 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...MAF...EPZ... LAT...LON 32460347 30900259 30460441 32080494 32460347
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 9:21 PM CDT | Severe Thunderstorm Watch | SPC | Brewster, Crane, Culberson, Jeff Davis, Loving, Pecos and 4 more | 7 hr |
| May 13, 11:37 PM CDT | Mesoscale Discussion | SPC | Crane, Culberson, Ector, Jeff Davis, Loving, Pecos and 3 more | 53 min |
| May 14, 2:17 AM CDT | Mesoscale Discussion | SPC | Val Verde | 118 min |
| May 14, 1:55 PM CDT | Mesoscale Discussion | SPC | Brewster, Concho, Crockett, Edwards, Irion, Jeff Davis and 9 more | 3 hr |
| May 14, 2:55 PM CDT | Severe Thunderstorm Watch | SPC | Brewster, Jeff Davis, Pecos, Presidio, Reeves, Terrell | 5 hr |
| May 14, 6:57 PM CDT | Mesoscale Discussion | SPC | Maverick | 63 min |
Nearby
Mesoscale Discussions in Texas, 2012Every mesoscale discussion in 2012
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.