Alert archive / New Mexico / Mesoscale Discussions in 2006

Mesoscale Discussion 587

April 20, 20068 counties in New Mexico; Loving County, Ward County, Winkler County, Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 20, 2006, 2:54 PM MDT for 8 counties in New Mexico; Loving County, Ward County, Winkler County, Texas. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued
Apr 20, 2006, 2:54 PM MDT (20:54 UTC)
Expired
Apr 20, 2006, 4:00 PM MDT
In force
66 min
Issued by
the Storm Prediction Center

Counties Chaves County, NM, De Baca County, NM, Eddy County, NM, Guadalupe County, NM, Lincoln County, NM, Mora County, NM, San Miguel County, NM, Torrance County, NM, Loving County, TX, Ward County, TX, Winkler County, TX

The radar

The Cannon AFB radar (KFDX), 120 km from the middle of the area, began a volume at 20:57 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.9 hours before the alert went out and 286 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 2006-04-20Temperature 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 2006-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
2724 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 20, 3:37 PM MDTTornado WatchSPCLea4 hr
Apr 19, 6:31 PM MDTMesoscale DiscussionSPCDimmit, Frio, La Salle, Webb, Zavala119 min
Apr 19, 6:41 PM MDTMesoscale DiscussionSPCAngelina, Camp, Cass, Cherokee, Gregg, Harrison and 11 more94 min
Apr 19, 7:30 PM MDTMesoscale DiscussionSPCBorden, Bosque, Brown, Callahan, Coke, Coleman and 37 more60 min
Apr 19, 7:55 PM MDTSevere Thunderstorm WatchSPCArcher, Bosque, Brown, Callahan, Clay, Coke and 33 more6 hr
Apr 19, 8:23 PM MDTSevere Thunderstorm WatchSPCAnderson, Bell, Bowie, Camp, Cass, Cherokee and 35 more5 hr
Apr 20, 12:49 AM MDTSevere Thunderstorm WatchSPCAnderson, Bell, Bowie, Camp, Cass, Cherokee and 35 more7 hr
Apr 20, 1:43 AM MDTMesoscale DiscussionSPCBorden, Callahan, Dawson, Eastland, Fisher, Glasscock and 11 more62 min
Apr 20, 1:53 AM MDTSevere Thunderstorm WatchSPCDimmit, Edwards, Kinney, Maverick, Real, Uvalde and 2 more3 hr
Apr 20, 2:13 AM MDTSevere Thunderstorm WatchSPCAndrews, Borden, Brown, Callahan, Coke, Coleman and 26 more8 hr
Apr 20, 3:55 AM MDTMesoscale DiscussionSPCDimmit, Edwards, Kinney, Maverick, Real, Uvalde and 1 more65 min
Apr 20, 8:30 AM MDTSevere Thunderstorm WatchSPCBandera, Brown, Coke, Coleman, Concho, Crockett and 24 more7 hr
Apr 20, 9:15 AM MDTMesoscale DiscussionSPCBorden, Callahan, Coke, Coleman, Concho, Crane and 26 more60 min
Apr 20, 10:18 AM MDTSevere Thunderstorm WatchSPCBastrop, Bexar, Blanco, Burnet, Caldwell, Comal and 9 more4 hr
Apr 20, 12:21 PM MDTMesoscale DiscussionSPCAnderson, Bell, Blanco, Borden, Bosque, Brown and 79 more84 min
Apr 20, 1:58 PM MDTMesoscale DiscussionSPCBandera, Blanco, Burnet, Comal, Crockett, Edwards and 16 more62 min
Apr 20, 2:24 PM MDTTornado WatchSPCBandera, Bastrop, Bexar, Blanco, Brazos, Burleson and 34 more7 hr
Apr 20, 2:31 PM MDTSevere Thunderstorm WatchSPCBell, Bosque, Brown, Callahan, Coke, Coleman and 20 more6 hr
Apr 20, 4:54 PM MDTMesoscale DiscussionSPCAustin, Bastrop, Brazos, Burleson, Caldwell, Colorado and 11 more96 min
Apr 20, 5:34 PM MDTSevere Thunderstorm WatchSPCAnderson, Angelina, Cherokee, Ellis, Gregg, Grimes and 29 more6 hr

Nearby

Mesoscale Discussions in New Mexico, 2006Mesoscale Discussions in Texas, 2006Every mesoscale discussion in 2006

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.