Alert archive / New Mexico / Mesoscale Discussions in 2012

Mesoscale Discussion 760

May 8, 20128 counties in New Mexico; 6 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 8, 2012, 3:53 PM MDT for 8 counties in New Mexico; 6 counties in Texas. It was in force for 67 min.

The area

The outline as issued.

The facts

Issued
May 8, 2012, 3:53 PM MDT (21:53 UTC)
Expired
May 8, 2012, 5:00 PM MDT
In force
67 min
Issued by
the Storm Prediction Center

Counties Catron County, NM, Doña Ana County, NM, Grant County, NM, Hidalgo County, NM, Luna County, NM, Otero County, NM, Sierra County, NM, Socorro County, NM, Brewster County, TX, Culberson County, TX, El Paso County, TX, Hudspeth County, TX, Jeff Davis County, TX, Presidio County, TX

The radar

The El Paso radar (KEPZ), 84 km from the middle of the area, began a volume at 21:54 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

Santa Teresa, NM (KEPZ), launched 12:00Z, 9.9 hours before the alert went out and 84 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.

Skew-T log-pSkew-T log-p diagram, Santa Teresa, NM at 12:00Z on 2012-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 187 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Santa Teresa, NM at 12:00Z on 2012-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
187 J/kg
Mixed-layer CIN
-196 J/kg
Mixed-layer LCL
1649 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

470 
ACUS11 KWNS 082153
SWOMCD
SPC MCD 082153 
TXZ000-NMZ000-082300-

MESOSCALE DISCUSSION 0760
NWS STORM PREDICTION CENTER NORMAN OK
0453 PM CDT TUE MAY 08 2012

AREAS AFFECTED...SRN NM...FAR WRN TX

CONCERNING...SEVERE THUNDERSTORM WATCH 268...

VALID 082153Z - 082300Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 268
CONTINUES.

SUMMARY...THREAT OF DMGG WINDS AND HAIL PERSISTS FOR WW268.

DISCUSSION...ELY/SELY POST FRONTAL SURFACE WINDS VEERING TO MODEST
SWLY WINDS ALOFT /BETWEEN AN EXITING UPPER TROUGH AND A LOW NOTED ON
2130Z WV IMAGERY OVER NRN BAJA CA/ ARE SUPPORTING ROTATING UPDRAFTS
ACROSS THE WW AREA. RECENT RADAR IMAGERY HAS SHOWN A SERIES OF LEFT
SPLITS EJECTING NWD THROUGH NRN MEXICO...WHICH MAY BE CAPABLE OF
LARGE HAIL AS THEY APPROACH THE U.S. BORDER. OTHERWISE...WEAK
INSTABILITY WILL CONTINUE TO SUPPORT MULTICELLULAR CLUSTERS AND
WEAK/BRIEF SUPERCELLS...POSING A THREAT OF DMGG WINDS AND HAIL.

..HURLBUT.. 05/08/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...MAF...ABQ...EPZ...

LAT...LON   31330903 34550903 34570679 34400642 34240640 34230602
            33850593 33760608 33630627 33390633 33290539 32560537
            32520492 32010478 31950407 31110408 29830233 29000322
            29330406 29640450 30390486 30660507 31740649 31790817
            31290819 31330903

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 7, 8:46 PM MDTMesoscale DiscussionSPCEddy, Lea89 min
May 8, 12:37 PM MDTMesoscale DiscussionSPCDoña Ana, Grant, Luna, Otero, Sierra113 min
May 8, 1:07 PM MDTSevere Thunderstorm WatchSPCCatron, Doña Ana, Grant, Hidalgo, Luna, Otero and 2 more7 hr
May 7, 6:39 PM MDTSevere Thunderstorm WatchSPCCamp, Gregg, Harrison, Marion, Morris, Panola and 5 more4 hr
May 7, 6:54 PM MDTMesoscale DiscussionSPCAtascosa, Bandera, Bastrop, Bee, Bexar, Brazos and 40 more66 min
May 7, 8:15 PM MDTMesoscale DiscussionSPCCamp, Cass, Gregg, Harrison, Marion, Morris and 6 more60 min
May 8, 12:42 AM MDTMesoscale DiscussionSPCAtascosa, Bandera, Bexar, Comal, Dimmit, Edwards and 13 more93 min
May 8, 9:44 AM MDTMesoscale DiscussionSPCBee, Brooks, Duval, Frio, Goliad, Jim Hogg and 11 more61 min
May 8, 9:58 AM MDTSevere Thunderstorm WatchSPCAransas, Atascosa, Bee, Brooks, Calhoun, Cameron and 28 more8 hr
May 8, 2:03 PM MDTMesoscale DiscussionSPCCameron, Hidalgo, Starr, Willacy87 min
May 8, 4:47 PM MDTMesoscale DiscussionSPCCameron, Hidalgo, Kenedy, Willacy58 min

Nearby

Mesoscale Discussions in New Mexico, 2012Mesoscale Discussions in Texas, 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.