Alert archive / Texas / Severe Thunderstorm Watches in 2017

Severe Thunderstorm Watch 255

May 22, 20178 counties in New Mexico; 11 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 22, 2017, 1:01 PM MDT for 8 counties in New Mexico; 11 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 22, 2017, 1:01 PM MDT (19:01 UTC)
Expired
May 22, 2017, 8:00 PM MDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt

Counties Chaves County, NM, Curry County, NM, De Baca County, NM, Eddy County, NM, Guadalupe County, NM, Lea County, NM, Quay County, NM, Roosevelt County, NM, Andrews County, TX, Bailey County, TX, Castro County, TX, Cochran County, TX, Deaf Smith County, TX, Gaines County, TX, Hockley County, TX, Lamb County, TX, Parmer County, TX, Terry County, TX, Yoakum County, TX

The radar

The Cannon AFB radar (KFDX), 75 km from the middle of the area, began a volume at 19:05 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
10%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 22, 1:09 PM MDTSevere Thunderstorm WarningABQDe Baca36 min
May 22, 1:53 PM MDTSevere Thunderstorm WarningABQDe Baca, Guadalupe, Quay, Roosevelt52 min
May 22, 2:34 PM MDTSevere Thunderstorm WarningABQDe Baca, Guadalupe25 min
May 22, 3:51 PM MDTSevere Thunderstorm WarningABQChaves, Lincoln43 min
May 22, 3:58 PM MDTSevere Thunderstorm WarningABQGuadalupe34 min
May 22, 4:10 PM MDTSevere Thunderstorm WarningABQChaves, De Baca, Roosevelt23 min
May 22, 5:14 PM MDTSevere Thunderstorm WarningABQChaves, Roosevelt46 min
May 22, 5:15 PM MDTSevere Thunderstorm WarningABQChaves, De Baca45 min
May 22, 5:25 PM MDTSevere Thunderstorm WarningMAFEddy50 min
May 22, 5:54 PM MDTSevere Thunderstorm WarningABQChaves51 min
May 22, 6:03 PM MDTSevere Thunderstorm WarningMAFEddy, Lea42 min
May 22, 6:13 PM MDTSevere Thunderstorm WarningMAFEddy47 min
May 22, 6:31 PM MDTSevere Thunderstorm WarningABQChaves44 min
May 22, 6:45 PM MDTSevere Thunderstorm WarningMAFEddy, Lea45 min
May 22, 6:57 PM MDTTornado WarningABQChaves18 min
May 22, 7:00 PM MDTSevere Thunderstorm WarningMAFEddy, Lea30 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 7.0 hours before the alert went out and 227 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, Amarillo Airport, TX at 12:00Z on 2017-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Amarillo Airport, TX at 12:00Z on 2017-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1120 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
265 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 12:23 PM MDTMesoscale DiscussionSPCChaves, De Baca, Eddy, Guadalupe, Lea, Roosevelt97 min
May 22, 5:56 PM MDTMesoscale DiscussionSPCChaves, De Baca, Eddy, Guadalupe, Lea, Roosevelt2 hr
May 21, 7:02 PM MDTMesoscale DiscussionSPCBrooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Kleberg and 3 more2 hr

Nearby

Severe Thunderstorm Watches in Texas, 2017Severe Thunderstorm Watches in New Mexico, 2017Every severe thunderstorm watch in 2017

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.