Alert archive / Texas / Mesoscale Discussions in 2005
Mesoscale Discussion 1007
The Storm Prediction Center issued this mesoscale discussion at May 25, 2005, 1:59 PM CDT for 29 counties in Texas. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- May 25, 2005, 1:59 PM CDT (18:59 UTC)
- Expired
- May 25, 2005, 3:30 PM CDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 29 counties
Bell County, TX, Bosque County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Eastland County, TX, Erath County, TX, Hamilton County, TX, Irion County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Mitchell County, TX, Nolan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Somervell County, TX, Sterling County, TX, Taylor County, TX, Tom Green County, TX
The radar
The Dyess AFB radar (KDYX), 90 km from the middle of the area, began a volume at 18:59 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
Fort Worth, TX (KFWD), launched 12:00Z, 7.0 hours before the alert went out and 242 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
- 1061 J/kg
- Mixed-layer CIN
- -305 J/kg
- Mixed-layer LCL
- 1122 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 251900 SWOMCD SPC MCD 251859 TXZ000-252030- MESOSCALE DISCUSSION 1007 NWS STORM PREDICTION CENTER NORMAN OK 0159 PM CDT WED MAY 25 2005 AREAS AFFECTED...WCNTRL AND CNTRL TX CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 251859Z - 252030Z ...SEVERE THUNDERSTORM WATCH MAY BE REQUIRED BY 21Z... COMPLEX SFC PATTERN HAS EVOLVED ACROSS NORTH TX EARLY THIS AFTERNOON. ONGOING MCS CONTINUES ITS SEWD MOVEMENT INTO NERN TX WITH STRONG PRESSURE RISES IN ITS WAKE ACROSS SWRN OK/ERN TX PANHANDLE. RESULTANT SFC BOUNDARY/CONVERGENCE SHOULD SHARPEN NEAR I-20 CORRIDOR WEST OF FTW...WWD TOWARD ABI OVER THE NEXT FEW HOURS. IT APPEARS BOUNDARY LAYER AIRMASS WILL FURTHER DESTABILIZE AND BECOME WEAKLY CAPPED ALLOWING CONVECTIVE DEVELOPMENT ALONG THIS ZONE NEAR OR SHORTLY AFTER 21Z. IN ADDITION...DEEP LAYER SHEAR IS BECOMING INCREASINGLY SUPPORTIVE OF ROTATING STORMS GIVEN THE MODEST NWLY FLOW ALOFT THAT HAS DEVELOPED BEHIND THE MCS. ISOLATED SUPERCELLS ARE POSSIBLE EARLY...HOWEVER STORM EVOLUTION WILL LIKELY BECOME AN MCS AS IT PROPAGATES SWD ACROSS THE EDWARDS PLATEAU/HILL COUNTRY AFTER 26/00Z. LARGE HAIL CAN BE EXPECTED BEFORE DAMAGING WIND THREAT INCREASES WITH MORE ORGANIZED CLUSTER. ..DARROW.. 05/25/2005 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...FWD...EWX...SJT...MAF... 32550111 32749905 32149723 30899751 30539929 30980146
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:17 PM CDT | Mesoscale Discussion | SPC | Bowie, Cass | 118 min |
| May 24, 10:28 PM CDT | Mesoscale Discussion | SPC | Lipscomb, Ochiltree | 2 hr |
| May 24, 11:05 PM CDT | Severe Thunderstorm Watch | SPC | Hansford, Hemphill, Hutchinson, Lipscomb, Ochiltree, Roberts | 6 hr |
| May 25, 12:42 AM CDT | Mesoscale Discussion | SPC | Hansford, Hemphill, Hutchinson, Lipscomb, Ochiltree, Roberts | 93 min |
| May 25, 3:39 AM CDT | Mesoscale Discussion | SPC | Hansford, Hemphill, Hutchinson, Lipscomb, Ochiltree, Roberts | 66 min |
| May 25, 7:51 AM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Childress, Clay, Collingsworth, Foard and 8 more | 84 min |
| May 25, 9:20 AM CDT | Severe Thunderstorm Watch | SPC | Anderson, Angelina, Archer, Camp, Cass, Cherokee and 41 more | 7 hr |
| May 25, 12:14 PM CDT | Mesoscale Discussion | SPC | Anderson, Archer, Camp, Cass, Cherokee, Clay and 39 more | 91 min |
| May 25, 2:45 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Angelina, Camp, Cherokee, Ellis, Franklin and 18 more | 5 hr |
| May 25, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Bell, Borden, Bosque, Brown, Callahan and 38 more | 7 hr |
| May 25, 4:56 PM CDT | Mesoscale Discussion | SPC | Angelina, Cherokee, Grimes, Houston, Leon, Madison and 8 more | 94 min |
Nearby
Mesoscale Discussions in Texas, 2005Every mesoscale discussion in 2005
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.