Alert archive / Texas / Frost Advisories in 2021

Frost Advisory 2, NWS Fort Worth, TX

November 4, 202113 counties in Texas

NWS Fort Worth, TX issued this frost advisory at Nov 4, 2021, 3:03 AM CDT for 13 counties in Texas. It took effect at Nov 5, 2021, 3:00 AM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Nov 4, 2021, 3:03 AM CDT (08:03 UTC)
In effect from
Nov 5, 2021, 3:00 AM CDT
Expired
Nov 5, 2021, 9:00 AM CDT
In force
6 hr
Issued by
NWS Fort Worth, TX

Counties Anderson County, TX, Delta County, TX, Fannin County, TX, Freestone County, TX, Henderson County, TX, Hopkins County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Leon County, TX, Rains County, TX, Rockwall County, TX, Van Zandt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 130 km from the middle of the area, began a volume at 08:07 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

Fort Worth, TX (KFWD), launched 00:00Z, 8.1 hours before the alert went out and 129 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, Fort Worth, TX at 00:00Z on 2021-11-04Temperature 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, Fort Worth, TX at 00:00Z on 2021-11-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 square meters per square second.1939587897Sfc1 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
539 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

844 
WWUS74 KFWD 040803
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
303 AM CDT Thu Nov 4 2021

TXZ094-095-105>107-120>123-135-147-148-162-041900-
/O.NEW.KFWD.FR.Y.0002.211105T0800Z-211105T1400Z/
Fannin-Lamar-Hunt-Delta-Hopkins-Rockwall-Kaufman-Van Zandt-Rains-
Henderson-Freestone-Anderson-Leon-
Including the cities of Bonham, Paris, Greenville, Commerce, 
Cooper, Sulphur Springs, Rockwall, Heath, Terrell, Kaufman, 
Forney, Canton, Grand Saline, Wills Point, Van, Edgewood, Emory, 
East Tawakoni, Point, Athens, Gun Barrel City, Teague, Fairfield,
Wortham, Palestine, Buffalo, Centerville, Jewett, Normangee, 
and Oakwood
303 AM CDT Thu Nov 4 2021

...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM CDT FRIDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Portions of North and East Texas.

* WHEN...From 3 AM to 9 AM CDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that frost is possible. Sensitive outdoor 
plants may be damaged if left uncovered.

&&

$$

Bain
4 follow-up statements
347 
WWUS74 KFWD 041751
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
1251 PM CDT Thu Nov 4 2021

TXZ094-095-105>107-120>123-135-147-148-162-050200-
/O.CON.KFWD.FR.Y.0002.211105T0800Z-211105T1400Z/
Fannin-Lamar-Hunt-Delta-Hopkins-Rockwall-Kaufman-Van Zandt-Rains-
Henderson-Freestone-Anderson-Leon-
Including the cities of Bonham, Paris, Greenville, Commerce, 
Cooper, Sulphur Springs, Rockwall, Heath, Terrell, Kaufman, 
Forney, Canton, Grand Saline, Wills Point, Van, Edgewood, Emory, 
East Tawakoni, Point, Athens, Gun Barrel City, Teague, Fairfield,
Wortham, Palestine, Buffalo, Centerville, Jewett, Normangee, 
and Oakwood
1251 PM CDT Thu Nov 4 2021

...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT
FRIDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

* WHERE...Portions of North and East Texas.

* WHEN...From 3 AM to 9 AM CDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants and other sensitive
vegetation from the cold.

&&

$$
057 
WWUS74 KFWD 050159
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
859 PM CDT Thu Nov 4 2021

TXZ094-095-105>107-120>123-135-147-148-162-051000-
/O.CON.KFWD.FR.Y.0002.211105T0800Z-211105T1400Z/
Fannin-Lamar-Hunt-Delta-Hopkins-Rockwall-Kaufman-Van Zandt-Rains-
Henderson-Freestone-Anderson-Leon-
Including the cities of Bonham, Paris, Greenville, Commerce, 
Cooper, Sulphur Springs, Rockwall, Heath, Terrell, Kaufman, 
Forney, Canton, Grand Saline, Wills Point, Van, Edgewood, Emory, 
East Tawakoni, Point, Athens, Gun Barrel City, Teague, Fairfield,
Wortham, Palestine, Buffalo, Centerville, Jewett, Normangee, 
and Oakwood
859 PM CDT Thu Nov 4 2021

...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT
FRIDAY...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Portions of north central and northeast Texas.

* WHEN...From 3 AM to 9 AM CDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants and other sensitive
vegetation from the cold.

&&

$$
400 
WWUS74 KFWD 051007
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
507 AM CDT Fri Nov 5 2021

TXZ094-095-105>107-120>123-135-147-148-162-051400-
/O.CON.KFWD.FR.Y.0002.000000T0000Z-211105T1400Z/
Fannin-Lamar-Hunt-Delta-Hopkins-Rockwall-Kaufman-Van Zandt-Rains-
Henderson-Freestone-Anderson-Leon-
Including the cities of Bonham, Paris, Greenville, Commerce, 
Cooper, Sulphur Springs, Rockwall, Heath, Terrell, Kaufman, 
Forney, Canton, Grand Saline, Wills Point, Van, Edgewood, Emory, 
East Tawakoni, Point, Athens, Gun Barrel City, Teague, Fairfield,
Wortham, Palestine, Buffalo, Centerville, Jewett, Normangee, 
and Oakwood
507 AM CDT Fri Nov 5 2021

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Portions of north central and northeast Texas.

* WHEN...From 3 AM to 9 AM CDT Friday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants and other sensitive
vegetation from the cold.

&&

$$
932 
WWUS74 KFWD 051355
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
855 AM CDT Fri Nov 5 2021

TXZ094-095-105>107-120>123-135-147-148-162-051500-
/O.EXP.KFWD.FR.Y.0002.000000T0000Z-211105T1400Z/
Fannin-Lamar-Hunt-Delta-Hopkins-Rockwall-Kaufman-Van Zandt-Rains-
Henderson-Freestone-Anderson-Leon-
Including the cities of Bonham, Paris, Greenville, Commerce, 
Cooper, Sulphur Springs, Rockwall, Heath, Terrell, Kaufman, 
Forney, Canton, Grand Saline, Wills Point, Van, Edgewood, Emory, 
East Tawakoni, Point, Athens, Gun Barrel City, Teague, Fairfield,
Wortham, Palestine, Buffalo, Centerville, Jewett, Normangee, 
and Oakwood
855 AM CDT Fri Nov 5 2021

...FROST ADVISORY WILL EXPIRE AT 9 AM CDT THIS MORNING...

Temperatures are warming and the Frost Advisory will be allowed to
expire at 9 AM this morning.

$$

Nearby

Frost Advisories in Texas, 2021Every frost 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.