Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Norman, OK

April 3, 2012Hardeman County, Texas

NWS Norman, OK issued this special weather statement at Apr 3, 2012, 8:21 PM CDT for Hardeman County, Texas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 3, 2012, 8:21 PM CDT (01:21 UTC)
Expired
Apr 3, 2012, 8:45 PM CDT
In force
24 min
Issued by
NWS Norman, OK

County Hardeman County, TX

The radar

The Altus AFB radar (KFDR), 90 km from the middle of the area, began a volume at 01:24 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 00:00Z, 1.4 hours before the alert went out and 194 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 2012-04-04Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 2012-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -87 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1250 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
-87 m²/s²
0-3 km storm-relative helicity
12 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.

206 
WWUS84 KOUN 040122
SPSOUN
SPECIAL WEATHER STATEMENTNATIONAL WEATHER SERVICE NORMAN OK821 PM 
CDT TUE APR 3 2012

TXZ083-084-040145-
HARDEMAN TX-FOARD TX-
821 PM CDT TUE APR 3 2012

...SIGNIFICANT WEATHER ADVISORY FOR HARDEMAN AND NORTHWESTERN 
FOARD COUNTIES UNTIL 845 PM CDT...

AT 819 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR LAZARE...
MOVING EAST AT 20 MPH. 

HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH DIAMETER... 
WIND GUSTS TO 40 MPH...

LOCATIONS IMPACTED INCLUDE...
GOODLETT AND LAZARE. 

LAT...LON 3424 10000 3435 9999 3440 9977 3413 9975
      3415 10004 3423 10005
TIME...MOT...LOC 0119Z 266DEG 18KT 3424 10006 
$$

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 3, 7:30 PM CDTSpecial Weather StatementOUNWoods30 min
Apr 3, 7:35 PM CDTSpecial Weather StatementOUNHarmon25 min
Apr 3, 7:57 PM CDTSpecial Weather StatementOUNHarmon33 min
Apr 3, 8:43 PM CDTSpecial Weather StatementOUNHardeman62 min

Nearby

Special Weather Statements in Texas, 2012Every special weather statement in 2012

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.