Alert archive / Texas / Mesoscale Discussions in 2006
Mesoscale Discussion 1012
The Storm Prediction Center issued this mesoscale discussion at May 28, 2006, 3:11 PM CDT for Ellis County, Harper County, Roger Mills County, Oklahoma; 11 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 28, 2006, 3:11 PM CDT (20:11 UTC)
- Expired
- May 28, 2006, 5:15 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Ellis County, OK, Harper County, OK, Roger Mills County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hall County, TX, Hemphill County, TX, Lipscomb County, TX, Roberts County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 104 km from the middle of the area, began a volume at 20:08 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.2 hours before the alert went out and 104 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
- 1037 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 1542 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 282011 SWOMCD SPC MCD 282011 OKZ000-KSZ000-TXZ000-282215- MESOSCALE DISCUSSION 1012 NWS STORM PREDICTION CENTER NORMAN OK 0311 PM CDT SUN MAY 28 2006 AREAS AFFECTED...EASTERN TX/OK PANHANDLES...SWRN KS CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 282011Z - 282215Z ...THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE DRYLINE... BOUNDARY LAYER TEMPERATURES HAVE WARMED RAPIDLY THROUGH THE MID 90S ACROSS THE SRN HIGH PLAINS FROM THE TX PANHANDLE INTO SWRN KS. LATEST DIAGNOSTIC FIELDS SUGGEST LOWEST 3 KM LAPSE RATES ARE NEAR DRY ADIABATIC ALONG THE DRYLINE WHICH STRETCHES ALONG THIS AXIS. LATEST SATELLITE IMAGERY SUPPORT THESE TRENDS WITH AN EXPANDING CU FIELD ALONG THIS CONFLUENCE ZONE. FORECAST SOUNDINGS SUGGEST MODIFIED INVERTED-V PROFILES WILL SUPPORT THUNDERSTORM BASES NEAR 650 MB. NEEDLESS TO SAY...SBCAPE VALUES IN EXCESS OF 2000 J/KG AND SUBSTANTIAL DRY SUB CLOUD LAYER WILL PROVE SUPPORTIVE OF STRONG DOWNBURSTS WITH MULTICELL UPDRAFTS THAT DRIFT NEWD OFF THE DRYLINE LATER THIS EVENING. ..DARROW.. 05/28/2006 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...OUN...DDC...LUB...AMA... 35450136 37229995 37169908 34020051 34260161
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 3:51 PM CDT | Severe Thunderstorm Watch | SPC | Beaver, Beckham, Custer, Dewey, Ellis, Greer and 7 more | 6 hr |
| May 28, 3:06 PM CDT | Mesoscale Discussion | SPC | Brooks, Dimmit, Duval, Frio, Hidalgo, Jim Hogg and 14 more | 114 min |
| May 28, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | Borden, Coke, Concho, Crockett, Fisher, Garza and 21 more | 4 hr |
Nearby
Mesoscale Discussions in Texas, 2006Mesoscale Discussions in Oklahoma, 2006Every mesoscale discussion in 2006
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.