Alert archive / New Mexico / Severe Thunderstorm Watches in 2021

Severe Thunderstorm Watch 219

May 28, 202112 counties in New Mexico; 9 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 28, 2021, 1:45 PM MDT for 12 counties in New Mexico; 9 counties in Texas. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
May 28, 2021, 1:45 PM MDT (19:45 UTC)
Expired
May 28, 2021, 11:00 PM MDT
In force
9 hr
Issued by
the Storm Prediction Center
Largest hail expected
3 in
Strongest gust expected
60 kt
All 21 counties

Chaves County, NM, Curry County, NM, De Baca County, NM, Eddy County, NM, Guadalupe County, NM, Harding County, NM, Lea County, NM, Lincoln County, NM, Quay County, NM, Roosevelt County, NM, San Miguel County, NM, Union County, NM, Brewster County, TX, Culberson County, TX, Jeff Davis County, TX, Loving County, TX, Pecos County, TX, Reeves County, TX, Terrell County, TX, Ward County, TX, Winkler County, TX

The radar

The Cannon AFB radar (KFDX), 156 km from the middle of the area, began a volume at 19:46 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
70%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

39 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 28, 2:24 PM MDTSevere Thunderstorm WarningMAFPecos66 min
May 28, 2:39 PM MDTSevere Thunderstorm WarningMAFPecos66 min
May 28, 2:59 PM MDTSevere Thunderstorm WarningABQGuadalupe, San Miguel, Torrance61 min
May 28, 3:36 PM MDTSevere Thunderstorm WarningABQGuadalupe, Quay54 min
May 28, 3:38 PM MDTSevere Thunderstorm WarningMAFBrewster67 min
May 28, 3:47 PM MDTSevere Thunderstorm WarningABQGuadalupe, Torrance58 min
May 28, 3:54 PM MDTSevere Thunderstorm WarningMAFPecos, Reeves66 min
May 28, 4:02 PM MDTSevere Thunderstorm WarningABQGuadalupe, Torrance43 min
May 28, 4:04 PM MDTSevere Thunderstorm WarningABQLincoln41 min
May 28, 4:13 PM MDTSevere Thunderstorm WarningABQQuay47 min
May 28, 4:21 PM MDTSevere Thunderstorm WarningABQHarding, Quay54 min
May 28, 4:28 PM MDTSevere Thunderstorm WarningABQDe Baca, Guadalupe, Quay62 min
May 28, 4:36 PM MDTSevere Thunderstorm WarningABQGuadalupe30 min
May 28, 4:43 PM MDTSevere Thunderstorm WarningABQLincoln62 min
May 28, 4:46 PM MDTSevere Thunderstorm WarningMAFCrane, Pecos, Reeves, Upton, Ward59 min
May 28, 4:58 PM MDTSevere Thunderstorm WarningABQQuay62 min
May 28, 5:01 PM MDTSevere Thunderstorm WarningABQCurry, Quay59 min
May 28, 5:13 PM MDTSevere Thunderstorm WarningABQChaves, Lincoln62 min
May 28, 5:19 PM MDTTornado WarningABQLincoln41 min
May 28, 5:32 PM MDTSevere Thunderstorm WarningMAFLea58 min
May 28, 5:35 PM MDTSevere Thunderstorm WarningMAFReeves39 min
May 28, 5:41 PM MDTSevere Thunderstorm WarningMAFCrane, Ector, Midland, Upton, Ward, Winkler64 min
May 28, 5:45 PM MDTSevere Thunderstorm WarningABQChaves, Lincoln47 min
May 28, 5:50 PM MDTSevere Thunderstorm WarningABQChaves, Curry, De Baca, Quay, Roosevelt55 min
May 28, 6:04 PM MDTSevere Thunderstorm WarningABQChaves56 min
May 28, 6:11 PM MDTTornado WarningABQChaves, Lincoln12 min
May 28, 6:27 PM MDTSevere Thunderstorm WarningMAFLoving, Reeves, Ward, Winkler63 min
May 28, 6:35 PM MDTSevere Thunderstorm WarningABQChaves, Lincoln55 min
May 28, 6:39 PM MDTSevere Thunderstorm WarningMAFCrane, Pecos, Upton51 min
May 28, 6:43 PM MDTSevere Thunderstorm WarningABQChaves, Curry, Roosevelt62 min
May 28, 6:54 PM MDTSevere Thunderstorm WarningMAFLea66 min
May 28, 6:57 PM MDTSevere Thunderstorm WarningABQChaves49 min
May 28, 7:38 PM MDTSevere Thunderstorm WarningMAFEddy, Lea67 min
May 28, 8:00 PM MDTSevere Thunderstorm WarningMAFLea60 min
May 28, 8:38 PM MDTSevere Thunderstorm WarningMAFEddy, Lea67 min
May 28, 8:50 PM MDTSevere Thunderstorm WarningMAFEddy, Lea55 min
May 28, 9:40 PM MDTSevere Thunderstorm WarningMAFEddy, Lea65 min
May 28, 9:45 PM MDTSevere Thunderstorm WarningMAFAndrews, Borden, Dawson, Ector, Gaines, Glasscock and 4 more60 min
May 28, 10:39 PM MDTSevere Thunderstorm WarningMAFLea66 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 7.8 hours before the alert went out and 193 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, Midland Regional, TX at 12:00Z on 2021-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1694 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, Midland Regional, TX at 12:00Z on 2021-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 square meters per square second.193958Sfc1 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
1694 J/kg
Mixed-layer CIN
-279 J/kg
Mixed-layer LCL
1059 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

275 
WWUS20 KWNS 281943
SEL9  
SPC WW 281943
NMZ000-TXZ000-290300-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 219
NWS Storm Prediction Center Norman OK
145 PM MDT Fri May 28 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Eastern New Mexico
  Southwest Texas

* Effective this Friday afternoon and evening from 145 PM until
  900 PM MDT.

* Primary threats include...
  Scattered large hail and isolated very large hail events to 3
    inches in diameter likely
  Scattered damaging wind gusts to 70 mph possible
  A tornado or two possible

SUMMARY...Thunderstorms will continue to develop off the higher
terrain of eastern New Mexico and southwest Texas and drift eastward
across the watch area this afternoon.  Supercell storms capable of
very large hail and damaging winds are possible.

The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 60 miles north northwest
of Tucumcari NM to 95 miles south southeast of Marfa TX. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 218...

AVIATION...A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29030.

...Hart

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 28, 4:10 AM MDTMesoscale DiscussionSPCCurry2 hr
May 28, 12:03 PM MDTMesoscale DiscussionSPCChaves, Curry, De Baca, Eddy, Guadalupe, Harding and 6 more57 min
May 28, 5:49 PM MDTMesoscale DiscussionSPCCurry, Roosevelt86 min
May 27, 9:24 PM MDTMesoscale DiscussionSPCArcher, Baylor, Clay, Haskell, Jack, Knox and 7 more96 min
May 28, 1:33 AM MDTMesoscale DiscussionSPCCollin, Denton, Hunt, Rockwall, Wise117 min
May 28, 10:16 AM MDTMesoscale DiscussionSPCBell, Bosque, Brazos, Brown, Burleson, Coleman and 19 more89 min
May 28, 11:14 AM MDTSevere Thunderstorm WatchSPCBell, Bosque, Brazos, Burleson, Burnet, Comanche and 22 more7 hr
May 28, 11:49 AM MDTMesoscale DiscussionSPCBrewster, Pecos, Presidio, Terrell86 min
May 28, 1:33 PM MDTMesoscale DiscussionSPCAndrews, Borden, Brown, Coke, Coleman, Concho and 35 more117 min
May 28, 2:41 PM MDTSevere Thunderstorm WatchSPCAndrews, Brown, Coke, Coleman, Concho, Crane and 20 more8 hr
May 28, 2:42 PM MDTMesoscale DiscussionSPCBell, Brazos, Brown, Burleson, Burnet, Comanche and 12 more93 min
May 28, 4:54 PM MDTMesoscale DiscussionSPCAtascosa, Austin, Bandera, Bastrop, Bexar, Blanco and 29 more96 min
May 28, 5:20 PM MDTSevere Thunderstorm WatchSPCAtascosa, Austin, Bandera, Bastrop, Bexar, Blanco and 32 more5 hr

Nearby

Severe Thunderstorm Watches in New Mexico, 2021Severe Thunderstorm Watches in Texas, 2021Every severe thunderstorm watch in 2021

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.