Alert archive / Texas / Mesoscale Discussions in 2005
Mesoscale Discussion 1049
The Storm Prediction Center issued this mesoscale discussion at May 29, 2005, 4:12 AM CDT for 16 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 29, 2005, 4:12 AM CDT (09:12 UTC)
- Expired
- May 29, 2005, 6:15 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Austin County, TX, Brazoria County, TX, Calhoun County, TX, Chambers County, TX, Colorado County, TX, Fort Bend County, TX, Galveston County, TX, Harris County, TX, Jackson County, TX, Liberty County, TX, Matagorda County, TX, Montgomery County, TX, Polk County, TX, San Jacinto County, TX, Waller County, TX, Wharton County, TX
The radar
The Houston radar (KHGX), 85 km from the middle of the area, began a volume at 09:12 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
Corpus Christi, TX (KCRP), launched 00:00Z, 9.2 hours before the alert went out and 213 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
- 1278 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 1173 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 290912 SWOMCD SPC MCD 290912 TXZ000-291115- MESOSCALE DISCUSSION 1049 NWS STORM PREDICTION CENTER NORMAN OK 0412 AM CDT SUN MAY 29 2005 AREAS AFFECTED...PORTIONS MID/UPPER TX COASTAL PLAIN AND ADJACENT WATERS CONCERNING...SEVERE THUNDERSTORM WATCH 346... VALID 290912Z - 291115Z AS OF 9Z...APEX OF BROADLY ARCHING BOW CONTINUES TO MOVE EWD APPROXIMATELY 35 KT TOWARD GLS AREA. SOME WEAKENING TREND EVIDENT IN REFLECTIVITY ANIMATIONS...AND WW MAY BE ALLOWED TO EXPIRE AS SCHEDULED IF THESE TENDENCIES CONTINUE. EXPECT ANY REMAINING POTENTIAL FOR DAMAGING GUSTS MAINLY S OF I-10...ACROSS PORTIONS BRAZORIA/FT BEND/SRN HARRIS/GALVESTON/CHAMBERS COUNTIES...AND COASTAL WATERS FROM FREEPORT AREA TO HIGH ISLAND. AIR MASS IN INFLOW REGION CONTINUES TO BE CHARACTERIZED BY VERY FAVORABLE MOISTURE -- I.E. SFC DEW POINTS LOW-MID 70S F AND 850 MB DEW POINTS IN 11-15 DEG C RANGE -- CONTRIBUTING TO MUCAPES AROUND 3000 J/KG. VWP DATA FROM HGX INDICATES ENOUGH LOW LEVEL VEERING TO SUPPORT 200-300 J/KG 0-3 KM SRH...ALTHOUGH LINEAR MODE OF CONVECTIVE FORCING SHOULD MINIMIZE SUPERCELL POTENTIAL AND MAINTAIN BOW/LEWP STRUCTURES. HOWEVER...STRONG CINH REMAINS OVER REGION AND FORCING MAY NOT REMAIN STRONG ENOUGH ALONG OUTFLOW EDGE TO MAINTAIN THREAT FOR NEARLY SFC-BASED CONVECTION. ..EDWARDS.. 05/29/2005 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...LCH...HGX...CRP...EWX... 27909680 29949680 30979446 28979448
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 7:05 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Bell, Burnet, Cherokee, Concho, Coryell and 19 more | 5 hr |
| May 28, 8:19 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Dimmit, Frio, Kendall and 7 more | 86 min |
| May 28, 8:25 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bexar, Blanco, Comal, Dimmit and 10 more | 4 hr |
| May 28, 10:08 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bell, Bexar, Blanco, Burnet, Caldwell and 11 more | 97 min |
| May 28, 11:40 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bastrop, Bee, Bexar, Blanco, Caldwell and 15 more | 5 hr |
| May 29, 12:57 AM CDT | Mesoscale Discussion | SPC | Aransas, Atascosa, Austin, Bastrop, Bee, Bexar and 46 more | 93 min |
| May 29, 1:20 AM CDT | Severe Thunderstorm Watch | SPC | Austin, Brazoria, Calhoun, Chambers, Colorado, Fort Bend and 10 more | 4 hr |
| May 29, 11:47 AM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Brazoria, Calhoun, Colorado, DeWitt and 13 more | 58 min |
| May 29, 12:56 PM CDT | Mesoscale Discussion | SPC | Dallam, Deaf Smith, Hartley, Oldham | 2 hr |
| May 29, 1:42 PM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Brazoria, Calhoun, Colorado, DeWitt and 13 more | 93 min |
| May 29, 2:20 PM CDT | Tornado Watch | SPC | Atascosa, Austin, Bastrop, Bee, Bexar, Brazoria and 41 more | 9 hr |
| May 29, 3:48 PM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Burnet, Comanche, Coryell, Ellis and 18 more | 87 min |
| May 29, 4:40 PM CDT | Mesoscale Discussion | SPC | Bell, Blanco, Bosque, Burnet, Comanche, Coryell and 20 more | 95 min |
| May 29, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | Angelina, Hardin, Jasper, Nacogdoches, Newton, Polk and 6 more | 7 hr |
| May 29, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Bell, Blanco, Burnet, Coryell, Falls and 9 more | 6 hr |
| May 29, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | Brooks, Duval, Hidalgo, Jim Hogg, Jim Wells, Kenedy and 5 more | 7 hr |
| May 29, 6:20 PM CDT | Mesoscale Discussion | SPC | Angelina, Hardin, Jasper, Nacogdoches, Newton, Polk and 6 more | 85 min |
| May 29, 6:42 PM CDT | Mesoscale Discussion | SPC | Atascosa, Austin, Bastrop, Bee, Bexar, Brazoria and 39 more | 93 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.