Alert archive / Texas / Wind Advisories in 2021

Wind Advisory 7, NWS Amarillo, TX

April 6, 2021Cimarron County, Texas County, Oklahoma; Dallam County, Hartley County, Sherman County, Texas

NWS Amarillo, TX issued this wind advisory at Apr 6, 2021, 2:02 PM CDT for Cimarron County, Texas County, Oklahoma; Dallam County, Hartley County, Sherman County, Texas. It took effect at Apr 6, 2021, 8:00 PM CDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Apr 6, 2021, 2:02 PM CDT (19:02 UTC)
In effect from
Apr 6, 2021, 8:00 PM CDT
Expired
Apr 7, 2021, 1:00 AM CDT
In force
5 hr
Issued by
NWS Amarillo, TX

Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Hartley County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 135 km from the middle of the area, began a volume at 19:02 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 7.0 hours before the alert went out and 136 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 2021-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 158 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 12:00Z on 2021-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 200 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
158 J/kg
Mixed-layer CIN
-578 J/kg
Mixed-layer LCL
1964 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
200 m²/s²
0-3 km storm-relative helicity
242 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

237 
WWUS74 KAMA 061902
NPWAMA

URGENT - WEATHER MESSAGE
National Weather Service Amarillo TX
202 PM CDT Tue Apr 6 2021

OKZ001-002-TXZ001-002-006-070600-
/O.NEW.KAMA.WI.Y.0007.210407T0100Z-210407T0600Z/
Cimarron-Texas-Dallam-Sherman-Hartley-
Including the cities of Boise City, Keyes, Guymon, Dalhart, 
Stratford, Hartley, and Channing
202 PM CDT Tue Apr 6 2021

...WIND ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 1 AM CDT
WEDNESDAY...

* WHAT...Northwest sustained winds near 35 mph expected. Wind 
  gusts up to 55 mph will also be possible. 

* WHERE...In Oklahoma, Cimarron and Texas Counties. In Texas, 
  Dallam, Sherman and Hartley Counties.

* WHEN...From 8 PM this evening to 1 AM CDT Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Ward

Nearby

Wind Advisories in Texas, 2021Wind Advisories in Oklahoma, 2021Every wind advisory 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.