Alert archive / Texas / Mesoscale Discussions in 2012
Mesoscale Discussion 488
The Storm Prediction Center issued this mesoscale discussion at Apr 10, 2012, 2:35 PM MDT for 4 counties in New Mexico; 5 counties in Oklahoma; 26 counties in Texas. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Apr 10, 2012, 2:35 PM MDT (20:35 UTC)
- Expired
- Apr 10, 2012, 4:30 PM MDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
All 35 counties
Curry County, NM, Harding County, NM, Quay County, NM, Union County, NM, Beaver County, OK, Cimarron County, OK, Ellis County, OK, Roger Mills County, OK, Texas County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 82 km from the middle of the area, began a volume at 20:38 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.6 hours before the alert went out and 83 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
- 408 J/kg
- Mixed-layer CIN
- -171 J/kg
- Mixed-layer LCL
- 1308 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
919
ACUS11 KWNS 102035
SWOMCD
SPC MCD 102035
OKZ000-TXZ000-KSZ000-COZ000-NMZ000-102230-
MESOSCALE DISCUSSION 0488
NWS STORM PREDICTION CENTER NORMAN OK
0335 PM CDT TUE APR 10 2012
AREAS AFFECTED...ERN NM/SERN CO/OK AND TX PANHANDLES
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 102035Z - 102230Z
POTENTIAL FOR STORM DEVELOPMENT IS INCREASING ATTM ACROSS THE TX
PANHANDLE AND SURROUNDING AREAS. LIMITED SEVERE POTENTIAL COULD
EVENTUALLY REQUIRE WW ISSUANCE.
LATEST VISIBLE SATELLITE IMAGERY SHOWS BANDS OF SLOWLY INCREASING CU
IN A NUMBER OF LOCATIONS INVOF THE TX PANHANDLE. HOWEVER...WITH
LIMITED SHEAR AND INSTABILITY ACROSS A GOOD PORTION OF THIS
AREA...OVERALL SEVERE POTENTIAL IS EXPECTED TO REMAIN LOW. GREATEST
SEVERE THREAT WOULD APPEAR TO EXIST ACROSS NRN PORTIONS OF THE
AREA...WHICH LIES ON THE FAR SRN FRINGE OF THE STRONGER FLOW FIELD
ALOFT. THOUGH THE OVERALL ENVIRONMENT APPEARS SUPPORTIVE OF LIMITED
STORM ORGANIZATION AND THUS ONLY LOW-END SEVERE POTENTIAL...WW MAY
BE WARRANTED IF TRENDS SUGGEST FAIRLY WIDESPREAD CONVECTIVE COVERAGE
WOULD BECOME LIKELY.
..GOSS.. 04/10/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...OUN...DDC...LUB...AMA...PUB...ABQ...
LAT...LON 36680428 37070453 37440347 36980059 36889991 36279955
34260007 34140051 34050168 34330362 35490382 36680428SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 6:33 PM MDT | Mesoscale Discussion | SPC | Eddy, Lea | 57 min |
| Apr 9, 7:07 PM MDT | Mesoscale Discussion | SPC | Craig, Nowata, Osage, Rogers, Washington | 83 min |
| Apr 9, 7:54 PM MDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Caddo, Comanche, Cotton and 14 more | 66 min |
| Apr 9, 11:52 PM MDT | Mesoscale Discussion | SPC | Greer, Harmon, Jackson, Tillman | 23 min |
| Apr 10, 12:56 PM MDT | Mesoscale Discussion | SPC | Choctaw, McCurtain | 64 min |
| Apr 9, 11:25 PM MDT | Mesoscale Discussion | SPC | Brewster, Pecos, Presidio, Terrell | 35 min |
Nearby
Mesoscale Discussions in Texas, 2012Mesoscale Discussions in Oklahoma, 2012Mesoscale Discussions in New Mexico, 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.