Alert archive / Texas / Mesoscale Discussions in 2016
Mesoscale Discussion 652
The Storm Prediction Center issued this mesoscale discussion at May 19, 2016, 10:13 AM CDT for 12 counties in Texas. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- May 19, 2016, 10:13 AM CDT (15:13 UTC)
- Expired
- May 19, 2016, 11:45 AM CDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
Counties Aransas County, TX, Bee County, TX, Calhoun County, TX, Goliad County, TX, Jackson County, TX, Jim Wells County, TX, Kleberg County, TX, Live Oak County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX
The radar
The Corpus Christi radar (KCRP), 44 km from the middle of the area, began a volume at 15:17 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 12:00Z, 3.2 hours before the alert went out and 50 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
- 2030 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 661 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 14.9
The text
As transmitted.
274
ACUS11 KWNS 191514
SWOMCD
SPC MCD 191513
TXZ000-191645-
MESOSCALE DISCUSSION 0652
NWS STORM PREDICTION CENTER NORMAN OK
1013 AM CDT THU MAY 19 2016
AREAS AFFECTED...MIDDLE TX COASTAL PLAIN
CONCERNING...SEVERE THUNDERSTORM WATCH 182...
VALID 191513Z - 191645Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 182
CONTINUES.
SUMMARY...SEVERE STORMS MAY YET DEVELOP WITHIN THE EASTERN PART OF
WW 182 AS A CLUSTER PROGRESSES EAST AND PERHAPS ADDITIONAL STORMS
FORM SOUTH. ISOLATED WIND/HAIL SHOULD REMAIN THE PRIMARY THREATS.
DISCUSSION...A 35-KT EASTWARD-MOVING CLUSTER CENTERED OVER LIVE OAK
COUNTY HAS SHOWN AN INTENSIFICATION TREND IN INBOUND VELOCITIES OVER
THE PAST 20 MINUTES. THIS SUGGESTS POTENTIAL FOR STRONG TO ISOLATED
SEVERE WIND GUSTS MAY BE INCREASING AS THIS APPROACHES THE MIDDLE
COASTAL PLAIN GIVEN PRESENCE OF LOW-LEVEL EASTERLIES AND LOWER 70S
SURFACE DEW POINTS. FARTHER SOUTH...WEAK SHOWERS APPEAR TO BE
DEVELOPING NEAR THE CRP/BRO CWA BORDER. GIVEN SUBSTANTIAL VEERING OF
THE WIND PROFILES WITH HEIGHT /PER CRP VWP DATA/ AND MODERATE
BUOYANCY SAMPLED IN 12Z CRP RAOB /ALTHOUGH MUCH OF THIS WAS CONFINED
TO THE UPPER PORTION OF THE PROFILE WITH MODEST LOW-LEVEL LAPSE
RATES/...IT IS POSSIBLE THAT A STORM OR TWO MAY BECOME
SEMI-ORGANIZED WITH A RISK FOR SEVERE HAIL AND LOCALLY STRONG WINDS.
..GRAMS.. 05/19/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...HGX...CRP...EWX...BRO...
LAT...LON 28899774 29059722 29089661 28719645 28219662 27699711
26949741 27019789 27339815 27939829 28339818 28899774SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 7:04 AM CDT | Mesoscale Discussion | SPC | Aransas, Atascosa, Bee, DeWitt, Dimmit, Frio and 10 more | 116 min |
| May 19, 7:56 AM CDT | Severe Thunderstorm Watch | SPC | Aransas, Atascosa, Bee, Calhoun, DeWitt, Duval and 14 more | 7 hr |
| May 19, 11:35 AM CDT | Mesoscale Discussion | SPC | Aransas, Brazoria, Calhoun, Fort Bend, Galveston, Jackson and 4 more | 85 min |
| May 19, 3:47 PM CDT | Mesoscale Discussion | SPC | Cameron, Hidalgo, Kenedy, Willacy | 88 min |
Nearby
Mesoscale Discussions in Texas, 2016Every mesoscale discussion in 2016
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.