Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 1464

June 18, 200811 counties in New Mexico; Cimarron County, Texas County, Oklahoma; 13 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 18, 2008, 6:29 PM MDT for 11 counties in New Mexico; Cimarron County, Texas County, Oklahoma; 13 counties in Texas. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued
Jun 18, 2008, 6:29 PM MDT (00:29 UTC)
Expired
Jun 18, 2008, 7:30 PM MDT
In force
61 min
Issued by
the Storm Prediction Center
All 26 counties

Chaves County, NM, Curry County, NM, De Baca County, NM, Eddy County, NM, Guadalupe County, NM, Harding County, NM, Lea County, NM, Quay County, NM, Roosevelt County, NM, San Miguel County, NM, Union County, NM, Cimarron County, OK, Texas County, OK, Bailey County, TX, Castro County, TX, Cochran County, TX, Dallam County, TX, Deaf Smith County, TX, Hartley County, TX, Moore County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Sherman County, TX, Yoakum County, TX

The radar

The Cannon AFB radar (KFDX), 25 km from the middle of the area, began a volume at 00:30 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 00:00Z, 0.5 hours before the alert went out and 207 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 00:00Z on 2008-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 782 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, Amarillo Airport, TX at 00:00Z on 2008-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 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
782 J/kg
Mixed-layer CIN
-176 J/kg
Mixed-layer LCL
2629 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
312 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.5

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
Jun 19, 12:07 PM MDTMesoscale DiscussionSPCColfax, Harding, Mora, San Miguel, Union83 min
Jun 19, 12:49 PM MDTSevere Thunderstorm WatchSPCColfax, Curry, Guadalupe, Harding, Mora, Quay and 2 more7 hr
Jun 19, 2:37 PM MDTMesoscale DiscussionSPCColfax, Curry, Harding, Mora, Quay, San Miguel and 1 more83 min
Jun 19, 4:49 PM MDTMesoscale DiscussionSPCColfax, Curry, De Baca, Guadalupe, Harding, Mora and 4 more116 min
Jun 18, 6:02 PM MDTMesoscale DiscussionSPCAlfalfa, Dewey, Ellis, Garfield, Grant, Harper and 4 more88 min
Jun 18, 7:07 PM MDTSevere Thunderstorm WatchSPCAlfalfa, Beaver, Beckham, Custer, Dewey, Ellis and 6 more6 hr
Jun 18, 9:55 PM MDTMesoscale DiscussionSPCComanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more95 min
Jun 18, 11:48 PM MDTSevere Thunderstorm WatchSPCComanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more7 hr
Jun 19, 3:03 AM MDTMesoscale DiscussionSPCComanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more57 min
Jun 19, 12:32 PM MDTMesoscale DiscussionSPCCraig, Nowata, Ottawa58 min
Jun 19, 12:53 PM MDTMesoscale DiscussionSPCAdair, Atoka, Bryan, Caddo, Canadian, Carter and 45 more2 hr
Jun 19, 1:07 PM MDTSevere Thunderstorm WatchSPCAdair, Alfalfa, Blaine, Cherokee, Craig, Creek and 19 more8 hr
Jun 19, 3:26 PM MDTMesoscale DiscussionSPCHarmon64 min
Jun 19, 3:40 PM MDTSevere Thunderstorm WatchSPCComanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more7 hr
Jun 19, 5:31 AM MDTSevere Thunderstorm WatchSPCAnderson, Bosque, Collin, Dallas, Denton, Ellis and 23 more5 hr
Jun 19, 8:32 AM MDTMesoscale DiscussionSPCAnderson, Angelina, Austin, Bastrop, Brazos, Burleson and 24 more118 min
Jun 19, 1:16 PM MDTMesoscale DiscussionSPCChambers, Fort Bend, Hardin, Harris, Liberty, Orange89 min

Nearby

Mesoscale Discussions in Texas, 2008Mesoscale Discussions in New Mexico, 2008Mesoscale Discussions in Oklahoma, 2008Every mesoscale discussion in 2008

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.