Alert archive / Texas / Freeze Warnings in 2013

Freeze Warning 5, NWS Amarillo, TX

May 1, 201318 counties in Texas; Beaver County, Cimarron County, Texas County, Oklahoma

NWS Amarillo, TX issued this freeze warning at May 1, 2013, 4:03 PM CDT for 18 counties in Texas; Beaver County, Cimarron County, Texas County, Oklahoma. It took effect at May 2, 2013, 1:00 AM CDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 1, 2013, 4:03 PM CDT (21:03 UTC)
In effect from
May 2, 2013, 1:00 AM CDT
Expired
May 2, 2013, 10:13 AM CDT
In force
9 hr
Issued by
NWS Amarillo, TX
All 21 counties

Beaver County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 68 km from the middle of the area, began a volume at 21:09 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, 9.1 hours before the alert went out and 68 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 2013-05-01Temperature 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 2013-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.1939Sfc1 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
1939 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Amarillo, TX wrote its last area forecast discussion before this freeze warning went out at May 1, 3:54 PM CDT, 9 minutes earlier.

Area forecast discussion, May 1, 3:54 PM CDT, 9 minutes before
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Hazardous weather outlook, May 1, 3:53 PM CDT, 10 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AMARILLO TX
353 PM CDT WED MAY 1 2013

OKZ001>003-TXZ001>020-020900-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
353 PM CDT WED MAY 1 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

STRONG NORTH WINDS OF 25 TO 35 MPH WITH HIGHER GUSTS WILL BE POSSIBLE
THROUGH TONIGHT ACROSS THE OKLAHOMA AND TEXAS PANHANDLES.

LIGHT RAIN...LIGHT SLEET...AND LIGHT SNOW WILL BE POSSIBLE ACROSS THE
OKLAHOMA AND TEXAS PANHANDLES TONIGHT. SNOWFALL ACCUMULATIONS OF ONE TO
TWO INCHES MAY OCCUR ACROSS THE OKLAHOMA AND NORTHEASTERN TEXAS
PANHANDLES...WITH LESS THAN ONE INCH ACCUMULATION ELSEWHERE. THE
COMBINATION OF THE STRONG WINDS AND SNOW MAY RESULT IN BLOWING SNOW
AND REDUCED VISIBILITIES...ESPECIALLY ACROSS THE NORTHEAST SECTIONS
OF THE PANHANDLES.

FREEZING TEMPERATURES ARE LIKELY TONIGHT ACROSS THE OKLAHOMA
PANHANDLE AND ALL OF THE TEXAS PANHANDLE EXCEPT PARTS OF THE FAR
EASTERN AND SOUTHEASTERN TEXAS PANHANDLE. A FREEZE WARNING IS IN EFFECT
FOR TONIGHT ACROSS THIS AREA.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

STRONG NORTH WINDS OF 25 TO 35 MPH WILL CONTINUE THURSDAY ACROSS THE
OKLAHOMA AND TEXAS PANHANDLES.

LIGHT SNOW MAY CONTINUE INTO THURSDAY MORNING...MAINLY ACROSS THE
EASTERN HALF OF THE OKLAHOMA AND TEXAS PANHANDLES. SNOWFALL
ACCUMULATIONS ARE EXPECTED TO REMAIN BELOW ONE INCH AT THIS TIME.
THE COMBINATION OF THE STRONG WINDS AND SNOW MAY RESULT IN BLOWING
SNOW AND REDUCED VISIBILITIES...ESPECIALLY ACROSS THE NORTHEAST
SECTIONS OF THE PANHANDLES.

FREEZING OR BELOW FREEZING TEMPERATURES ARE LIKELY ACROSS THE
OKLAHOMA PANHANDLE AND ALL OF THE TEXAS PANHANDLE EXCEPT PARTS OF THE
FAR EASTERN AND SOUTHEASTERN TEXAS PANHANDLE THURSDAY MORNING. A
FREEZE WATCH REMAINS IN EFFECT THROUGH THURSDAY MORNING FOR THIS
AREA.

BELOW FREEZING TEMPERATURES WILL BE LIKELY AGAIN THURSDAY NIGHT INTO
FRIDAY MORNING ACROSS ALL OF THE TEXAS AND OKLAHOMA PANHANDLES.
ADDITIONAL FREEZE WATCHES AND WARNINGS MAY BECOME NECESSARY DURING
THIS TIME PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

In the hours before

Special weather statement, May 1, 3:54 PM CDT, 9 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
354 PM CDT WED MAY 1 2013

OKZ001>003-TXZ001>020-020500-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
INCLUDING THE CITIES OF...BOISE CITY...KEYES...GUYMON...BEAVER...
FORGAN...DALHART...STRATFORD...SPEARMAN...GRUVER...PERRYTON...
BOOKER...HIGGINS...FOLLETT...HARTLEY...CHANNING...DUMAS...
BORGER...MIAMI...CANADIAN...VEGA...AMARILLO...PANHANDLE...
WHITE DEER...PAMPA...SHAMROCK...WHEELER...HEREFORD...CANYON...
CLAUDE...CLARENDON...WELLINGTON
354 PM CDT WED MAY 1 2013

...WINTER PRECIPITATION POSSIBLE ACROSS THE OKLAHOMA AND TEXAS
PANHANDLES LATE TONIGHT AND THURSDAY MORNING...

AN UNSEASONABLY STRONG COLD FRONT WILL MOVE ACROSS THE OKLAHOMA AND TEXAS
PANHANDLES TODAY. A VIGOROUS UPPER LEVEL LOW PRESSURE SYSTEM IS
FORECAST TO MOVE ACROSS THE SOUTHERN HIGH PLAINS LATE TONIGHT AND
THURSDAY MORNING...AND MAY BRING A VARIETY OF PRECIPITATION TO THE
OKLAHOMA AND TEXAS PANHANDLES.

LIGHT RAIN IS EXPECTED TO DEVELOP OVER THE AREA THIS EVENING. AS THE
COLD AIR CONTINUES TO INVADE THE REGION...THE PRECIPITATION WILL
BEGIN TO CHANGE TO LIGHT SLEET AND LIGHT SNOW ACROSS THE NORTHWEST
SECTIONS LATER THIS EVENING...THEN SPREAD SOUTHEAST TO ENCOMPASS THE
REMAINDER OF THE TEXAS AND OKLAHOMA PANHANDLES AFTER MIDNIGHT
TONIGHT. AT THIS TIME...IT APPEARS THE EASTERN OKLAHOMA PANHANDLE AND
THE NORTHEAST TEXAS PANHANDLE WILL HAVE THE GREATEST LIKELIHOOD OF
RECEIVING SNOWFALL ACCUMULATIONS OF 1 TO 2 INCHES LATE TONIGHT INTO
THURSDAY MORNING. SNOWFALL ACCUMULATIONS SHOULD REMAIN BELOW 1 INCH
ACROSS THE REMAINDER OF THE OKLAHOMA AND TEXAS PANHANDLES.

IN ADDITION...STRONG NORTH WINDS OF 25 TO 35 MPH WITH HIGHER GUSTS
MAY RESULT IN AREAS OF BLOWING SNOW AND REDUCED VISIBILITIES...
ESPECIALLY ACROSS THE EASTERN OKLAHOMA PANHANDLE THE NORTHEAST TEXAS
PANHANDLE LATE TONIGHT AND THURSDAY MORNING.

PRECIPITATION IS FORECAST TO END FROM WEST TO EAST ACROSS THE REGION
THURSDAY MORNING.

THERE REMAINS CONSIDERABLE UNCERTAINTY REGARDING PRECIPITATION TYPE
AND AMOUNTS. THEREFORE...YOU ARE ENCOURAGED TO STAY TUNED FOR THE
LATEST FORECASTS...INCLUDING POSSIBLE WINTER WEATHER ADVISORIES...
FROM THE NATIONAL WEATHER SERVICE OFFICE IN AMARILLO TEXAS.

Nearby

Freeze Warnings in Texas, 2013Freeze Warnings in Oklahoma, 2013Every freeze warning in 2013

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.