Alert archive / Texas / Wind Advisories in 2018

Wind Advisory 8, NWS Fort Worth, TX

December 12, 201840 counties in Texas

NWS Fort Worth, TX issued this wind advisory at Dec 12, 2018, 3:23 PM CST for 40 counties in Texas. It took effect at Dec 13, 2018, 12:00 PM CST. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Dec 12, 2018, 3:23 PM CST (21:23 UTC)
In effect from
Dec 13, 2018, 12:00 PM CST
Expired
Dec 14, 2018, 12:00 PM CST
In force
24 hr
Issued by
NWS Fort Worth, TX
All 40 counties

Bell County, TX, Bosque County, TX, Collin County, TX, Comanche County, TX, Cooke County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Fannin County, TX, Grayson County, TX, Hamilton County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Lampasas County, TX, Limestone County, TX, McLennan County, TX, Milam County, TX, Mills County, TX, Montague County, TX, Navarro County, TX, Palo Pinto County, TX, Parker County, TX, Robertson County, TX, Rockwall County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Wise County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 14 km from the middle of the area, began a volume at 21:26 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 12:00Z, 9.4 hours before the alert went out and 42 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 12:00Z on 2018-12-12Temperature 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, Fort Worth, TX at 12:00Z on 2018-12-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 443 square meters per square second.1939587897117Sfc1 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
689 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
443 m²/s²
0-3 km storm-relative helicity
468 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

611 
WWUS74 KFWD 122123
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
323 PM CST Wed Dec 12 2018

...Very windy conditions expected across much of North and Central
Texas Thursday afternoon into Friday morning...

TXZ092>095-103>107-118>121-133-134-145-146-158>161-174-175-130530-
/O.NEW.KFWD.WI.Y.0008.181213T2100Z-181214T1800Z/
Cooke-Grayson-Fannin-Lamar-Denton-Collin-Hunt-Delta-Hopkins-
Tarrant-Dallas-Rockwall-Kaufman-Johnson-Ellis-Hill-Navarro-Bell-
McLennan-Falls-Limestone-Milam-Robertson-
Including the cities of Gainesville, Sherman, Denison, Bonham, 
Paris, Carrollton, Denton, Lewisville, Flower Mound, Plano, 
McKinney, Allen, Frisco, Greenville, Commerce, Cooper, 
Sulphur Springs, Fort Worth, Arlington, Dallas, Rockwall, Heath, 
Terrell, Kaufman, Forney, Cleburne, Burleson, Waxahachie, Ennis, 
Midlothian, Hillsboro, Corsicana, Killeen, Temple, Fort Hood, 
Waco, Marlin, Mexia, Groesbeck, Cameron, Rockdale, Hearne, 
Franklin, and Calvert
323 PM CST Wed Dec 12 2018

...WIND ADVISORY IN EFFECT FROM 3 PM THURSDAY TO NOON CST
FRIDAY...

The National Weather Service in Fort Worth has issued a Wind
Advisory, which is in effect from 3 PM Thursday to noon CST
Friday. 

* TIMING...3 PM Thursday to Noon Friday, with the highest winds
  expected Thursday evening into early Friday morning.

* WINDS...Northerly winds will increase to around 25-35 mph, with
  several gusts upwards of 40 to 45 mph. An isolated gust as high
  as 50 mph is possible.

* IMPACTS...Loose outdoor objects, such as decorations, will
  likely be blown about in the wind. Driving will become difficult
  on east-west oriented roads, especially for those in high- 
  profile vehicles. A few falling tree branches will pose a hazard
  to those outside. Additionally, isolated power outages will be 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds with gusts to 50 mph are forecast to occur. These 
winds will make driving difficult for all vehicles. Boaters should
stay off area lakes as waters will become very rough. Weak trees 
may be blown over and some minor structural damage is also 
possible. Residents should take action to ensure all lightweight 
outdoor objects are secured.

&&

$$

TXZ091-100>102-115>117-129>132-141>144-156-157-130530-
/O.NEW.KFWD.WI.Y.0008.181213T1800Z-181214T1800Z/
Montague-Young-Jack-Wise-Stephens-Palo Pinto-Parker-Eastland-
Erath-Hood-Somervell-Comanche-Mills-Hamilton-Bosque-Lampasas-
Coryell-
Including the cities of Bowie, Nocona, Graham, Olney, Jacksboro, 
Decatur, Bridgeport, Breckenridge, Mineral Wells, Weatherford, 
Briar, Cisco, Eastland, Ranger, Gorman, Stephenville, Dublin, 
Granbury, Oak Trail Shores, Glen Rose, Comanche, De Leon, 
Goldthwaite, Hamilton, Hico, Clifton, Meridian, Valley Mills, 
Lampasas, Copperas Cove, and Gatesville
323 PM CST Wed Dec 12 2018

...WIND ADVISORY IN EFFECT FROM NOON THURSDAY TO NOON CST
FRIDAY...

The National Weather Service in Fort Worth has issued a Wind
Advisory, which is in effect from noon Thursday to noon CST
Friday. 

* TIMING...Noon Thursday to Noon Friday, with the highest winds 
  expected Thursday evening into early Friday morning.

* WINDS...Northerly winds will increase to around 35 to 40 mph,
  with several gusts upwards of 50 to 55 mph probable.

* IMPACTS...Loose outdoor objects, such as decorations, will be
  blown about in the wind. Driving will become difficult on east-
  west oriented roads, especially for those in high-profile 
  vehicles. Falling tree branches will be hazardous to those 
  outside. Additionally, isolated power outages are probable.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds of 30 to 40 mph, with gusts in excess of 50 mph are
forecast to occur.  These winds will make driving difficult for
all vehicles. Boaters should stay off area lakes as waters will
become very rough. Weak trees may be blown over and some minor
structural damage is also possible. Residents should take action
to ensure all lightweight outdoor objects are secured.

&&

$$
6 follow-up statements
130 
WWUS74 KFWD 130342
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
942 PM CST Wed Dec 12 2018

...Very windy conditions expected across much of North and
Central Texas Thursday afternoon into Friday morning...

TXZ092>095-103>107-118>121-133-134-145-146-158>161-174-175-131300-
/O.CON.KFWD.WI.Y.0008.181213T2100Z-181214T1800Z/
Cooke-Grayson-Fannin-Lamar-Denton-Collin-Hunt-Delta-Hopkins-
Tarrant-Dallas-Rockwall-Kaufman-Johnson-Ellis-Hill-Navarro-Bell-
McLennan-Falls-Limestone-Milam-Robertson-
Including the cities of Gainesville, Sherman, Denison, Bonham, 
Paris, Carrollton, Denton, Lewisville, Flower Mound, Plano, 
McKinney, Allen, Frisco, Greenville, Commerce, Cooper, 
Sulphur Springs, Fort Worth, Arlington, Dallas, Rockwall, Heath, 
Terrell, Kaufman, Forney, Cleburne, Burleson, Waxahachie, Ennis, 
Midlothian, Hillsboro, Corsicana, Killeen, Temple, Fort Hood, 
Waco, Marlin, Mexia, Groesbeck, Cameron, Rockdale, Hearne, 
Franklin, and Calvert
942 PM CST Wed Dec 12 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 3 PM THURSDAY TO NOON CST
FRIDAY...

* TIMING...3 PM Thursday to Noon Friday, with the highest winds 
  expected Thursday evening into early Friday morning. 

* WINDS...Northerly winds will increase to around 25 to 35 mph, 
  with several gusts upwards of 40 to 45 mph. An isolated gust as 
  high as 50 mph is possible. 

* IMPACTS...Loose outdoor objects, such as decorations, will
  likely be blown about in the wind. Driving will become difficult
  on east-west oriented roads, especially for those in high-profile
  vehicles. A few falling tree branches will pose a hazard to 
  those outside. Additionally, isolated power outages will be 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds with gusts to 50 mph are forecast to occur. These
winds will make driving difficult for all vehicles. Boaters
should stay off area lakes as waters will become very rough. Weak
trees may be blown over and some minor structural damage is also
possible. Residents should take action to ensure all lightweight
outdoor objects are secured.

&&

$$

TXZ091-100>102-115>117-129>132-141>144-156-157-131300-
/O.CON.KFWD.WI.Y.0008.181213T1800Z-181214T1800Z/
Montague-Young-Jack-Wise-Stephens-Palo Pinto-Parker-Eastland-
Erath-Hood-Somervell-Comanche-Mills-Hamilton-Bosque-Lampasas-
Coryell-
Including the cities of Bowie, Nocona, Graham, Olney, Jacksboro, 
Decatur, Bridgeport, Breckenridge, Mineral Wells, Weatherford, 
Briar, Cisco, Eastland, Ranger, Gorman, Stephenville, Dublin, 
Granbury, Oak Trail Shores, Glen Rose, Comanche, De Leon, 
Goldthwaite, Hamilton, Hico, Clifton, Meridian, Valley Mills, 
Lampasas, Copperas Cove, and Gatesville
942 PM CST Wed Dec 12 2018

...WIND ADVISORY REMAINS IN EFFECT FROM NOON THURSDAY TO NOON CST
FRIDAY...

* TIMING...Noon Thursday to Noon Friday, with the highest winds 
  expected Thursday evening into early Friday morning. 

* WINDS...Northerly winds will increase to around 35 to 40 mph, 
  with several gusts upwards of 50 to 55 mph probable. 

* IMPACTS...Loose outdoor objects, such as decorations, will be
  blown about in the wind. Driving will become difficult on east-
  west oriented roads, especially for those in high-profile 
  vehicles. Falling tree branches will be hazardous to those 
  outside. Additionally, isolated power outages are probable. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds of 30 to 40 mph, with gusts in excess of 50 mph are
forecast to occur.  These winds will make driving difficult for
all vehicles. Boaters should stay off area lakes as waters will
become very rough. Weak trees may be blown over and some minor
structural damage is also possible. Residents should take action
to ensure all lightweight outdoor objects are secured.

&&

$$

Carlaw
921 
WWUS74 KFWD 131444
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
844 AM CST Thu Dec 13 2018

...Very windy conditions expected across much of North and
Central Texas This afternoon into Friday morning...

TXZ092>095-103>107-118>121-133-134-145-146-158>161-174-175-132300-
/O.CON.KFWD.WI.Y.0008.181213T2100Z-181214T1800Z/
Cooke-Grayson-Fannin-Lamar-Denton-Collin-Hunt-Delta-Hopkins-
Tarrant-Dallas-Rockwall-Kaufman-Johnson-Ellis-Hill-Navarro-Bell-
McLennan-Falls-Limestone-Milam-Robertson-
Including the cities of Gainesville, Sherman, Denison, Bonham, 
Paris, Carrollton, Denton, Lewisville, Flower Mound, Plano, 
McKinney, Allen, Frisco, Greenville, Commerce, Cooper, 
Sulphur Springs, Fort Worth, Arlington, Dallas, Rockwall, Heath, 
Terrell, Kaufman, Forney, Cleburne, Burleson, Waxahachie, Ennis, 
Midlothian, Hillsboro, Corsicana, Killeen, Temple, Fort Hood, 
Waco, Marlin, Mexia, Groesbeck, Cameron, Rockdale, Hearne, 
Franklin, and Calvert
844 AM CST Thu Dec 13 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
NOON CST FRIDAY...

* TIMING...3 PM Thursday to Noon Friday, with the highest winds 
  expected Thursday evening into early Friday morning. 

* WINDS...Northerly winds will increase to around 25 to 35 mph, 
  with several gusts upwards of 40 to 45 mph. An isolated gust 
  as high as 50 mph is possible. 

* IMPACTS...Loose outdoor objects, such as decorations, will 
  likely be blown about in the wind. Driving will become 
  difficult on east-west oriented roads, especially for those in 
  high- profile vehicles. A few falling tree branches will pose 
  a hazard to those outside. Additionally, isolated power 
  outages will be possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds with gusts to 50 mph are forecast to occur. These
winds will make driving difficult for all vehicles. Boaters
should stay off area lakes as waters will become very rough. Weak
trees may be blown over and some minor structural damage is also
possible. Residents should take action to ensure all lightweight
outdoor objects are secured.

&&

$$

TXZ091-100>102-115>117-129>132-141>144-156-157-132300-
/O.CON.KFWD.WI.Y.0008.181213T1800Z-181214T1800Z/
Montague-Young-Jack-Wise-Stephens-Palo Pinto-Parker-Eastland-
Erath-Hood-Somervell-Comanche-Mills-Hamilton-Bosque-Lampasas-
Coryell-
Including the cities of Bowie, Nocona, Graham, Olney, Jacksboro, 
Decatur, Bridgeport, Breckenridge, Mineral Wells, Weatherford, 
Briar, Cisco, Eastland, Ranger, Gorman, Stephenville, Dublin, 
Granbury, Oak Trail Shores, Glen Rose, Comanche, De Leon, 
Goldthwaite, Hamilton, Hico, Clifton, Meridian, Valley Mills, 
Lampasas, Copperas Cove, and Gatesville
844 AM CST Thu Dec 13 2018

...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO NOON CST
FRIDAY...

* TIMING...Noon Thursday to Noon Friday, with the highest winds 
  expected Thursday evening into early Friday morning. 

* WINDS...Northerly winds will increase to around 35 to 40 mph, 
  with several gusts upwards of 50 to 55 mph probable. 

* IMPACTS...Loose outdoor objects, such as decorations, will be 
  blown about in the wind. Driving will become difficult on 
  east- west oriented roads, especially for those in 
  high-profile vehicles. Falling tree branches will be hazardous 
  to those outside. Additionally, isolated power outages are 
  probable. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds of 30 to 40 mph, with gusts in excess of 50 mph are
forecast to occur.  These winds will make driving difficult for
all vehicles. Boaters should stay off area lakes as waters will
become very rough. Weak trees may be blown over and some minor
structural damage is also possible. Residents should take action
to ensure all lightweight outdoor objects are secured.

&&

$$
028 
WWUS74 KFWD 132153
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
353 PM CST Thu Dec 13 2018

...Very windy conditions expected across much of North and
Central Texas This evening through Friday morning...

TXZ092>095-103>107-118>121-133-134-145-146-158>161-174-175-140600-
/O.CON.KFWD.WI.Y.0008.000000T0000Z-181214T1800Z/
Cooke-Grayson-Fannin-Lamar-Denton-Collin-Hunt-Delta-Hopkins-
Tarrant-Dallas-Rockwall-Kaufman-Johnson-Ellis-Hill-Navarro-Bell-
McLennan-Falls-Limestone-Milam-Robertson-
Including the cities of Gainesville, Sherman, Denison, Bonham, 
Paris, Carrollton, Denton, Lewisville, Flower Mound, Plano, 
McKinney, Allen, Frisco, Greenville, Commerce, Cooper, 
Sulphur Springs, Fort Worth, Arlington, Dallas, Rockwall, Heath, 
Terrell, Kaufman, Forney, Cleburne, Burleson, Waxahachie, Ennis, 
Midlothian, Hillsboro, Corsicana, Killeen, Temple, Fort Hood, 
Waco, Marlin, Mexia, Groesbeck, Cameron, Rockdale, Hearne, 
Franklin, and Calvert
353 PM CST Thu Dec 13 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

* TIMING...Now until Noon Friday.
 
* WINDS...Northerly winds will increase between 25 and 35 mph,
  with gusts around 45 mph.  

* IMPACTS...Loose outdoor objects, such as decorations, will 
  likely be blown about in the wind. Driving will become 
  difficult on east-west oriented roads, especially for those in 
  high- profile vehicles. A few falling tree branches will pose 
  a hazard to those outside. Additionally, isolated power 
  outages will be possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds with gusts to 45 mph are forecast to occur. These 
winds will make driving difficult for all vehicles. Boaters should
stay off area lakes as waters will become very rough. Weak trees 
may be blown over and some minor structural damage is also 
possible. Residents should take action to ensure all lightweight 
outdoor objects are secured.

&&

$$

TXZ091-100>102-115>117-129>132-141>144-156-157-140600-
/O.CON.KFWD.WI.Y.0008.000000T0000Z-181214T1800Z/
Montague-Young-Jack-Wise-Stephens-Palo Pinto-Parker-Eastland-
Erath-Hood-Somervell-Comanche-Mills-Hamilton-Bosque-Lampasas-
Coryell-
Including the cities of Bowie, Nocona, Graham, Olney, Jacksboro, 
Decatur, Bridgeport, Breckenridge, Mineral Wells, Weatherford, 
Briar, Cisco, Eastland, Ranger, Gorman, Stephenville, Dublin, 
Granbury, Oak Trail Shores, Glen Rose, Comanche, De Leon, 
Goldthwaite, Hamilton, Hico, Clifton, Meridian, Valley Mills, 
Lampasas, Copperas Cove, and Gatesville
353 PM CST Thu Dec 13 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

 TIMING...Now until Noon Friday.
 
* WINDS...Northerly winds will increase between 25 and 35 mph,
  with gusts around 45 mph.  

* IMPACTS...Loose outdoor objects, such as decorations, will
  likely be blown about in the wind. Driving will become difficult
  on east-west oriented roads, especially for those in high-
  profile vehicles. A few falling tree branches will pose a hazard
  to those outside. Additionally, isolated power outages will be
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds with gusts to 45 mph are forecast to occur. These 
winds will make driving difficult for all vehicles. Boaters should
stay off area lakes as waters will become very rough. Weak trees 
may be blown over and some minor structural damage is also 
possible. Residents should take action to ensure all lightweight 
outdoor objects are secured.

&&

$$
513 
WWUS74 KFWD 140559
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
1159 PM CST Thu Dec 13 2018

...Windy conditions expected across much of North and Central 
Texas through Friday morning...

TXZ092>095-103>107-118>121-133-134-145-146-158>161-174-175-141400-
/O.CON.KFWD.WI.Y.0008.000000T0000Z-181214T1800Z/
Cooke-Grayson-Fannin-Lamar-Denton-Collin-Hunt-Delta-Hopkins-
Tarrant-Dallas-Rockwall-Kaufman-Johnson-Ellis-Hill-Navarro-Bell-
McLennan-Falls-Limestone-Milam-Robertson-
Including the cities of Gainesville, Sherman, Denison, Bonham, 
Paris, Carrollton, Denton, Lewisville, Flower Mound, Plano, 
McKinney, Allen, Frisco, Greenville, Commerce, Cooper, 
Sulphur Springs, Fort Worth, Arlington, Dallas, Rockwall, Heath, 
Terrell, Kaufman, Forney, Cleburne, Burleson, Waxahachie, Ennis, 
Midlothian, Hillsboro, Corsicana, Killeen, Temple, Fort Hood, 
Waco, Marlin, Mexia, Groesbeck, Cameron, Rockdale, Hearne, 
Franklin, and Calvert
1159 PM CST Thu Dec 13 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

* TIMING...Now until Noon Friday.

* WINDS...Northerly winds between 20 and 30 mph, with gusts 
  around 40 mph. 

* IMPACTS...Loose outdoor objects, such as decorations, will
  likely be blown about in the wind. Driving will become difficult
  on east-west oriented roads, especially for those in high-profile
  vehicles. A few falling tree branches will pose a hazard to 
  those outside. Additionally, isolated power outages will be 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of at least 20 to 30
mph are expected. Winds this strong can make driving difficult,
especially for high profile vehicles. Residents may wish to take 
action to secure trash cans, lawn furniture, and other lightweight
outdoor objects that may be blown around in the strong winds.

&&

$$

TXZ091-100>102-115>117-129>132-141>144-156-157-141400-
/O.CON.KFWD.WI.Y.0008.000000T0000Z-181214T1800Z/
Montague-Young-Jack-Wise-Stephens-Palo Pinto-Parker-Eastland-
Erath-Hood-Somervell-Comanche-Mills-Hamilton-Bosque-Lampasas-
Coryell-
Including the cities of Bowie, Nocona, Graham, Olney, Jacksboro, 
Decatur, Bridgeport, Breckenridge, Mineral Wells, Weatherford, 
Briar, Cisco, Eastland, Ranger, Gorman, Stephenville, Dublin, 
Granbury, Oak Trail Shores, Glen Rose, Comanche, De Leon, 
Goldthwaite, Hamilton, Hico, Clifton, Meridian, Valley Mills, 
Lampasas, Copperas Cove, and Gatesville
1159 PM CST Thu Dec 13 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

* WINDS...Northerly winds between 25 and 35 mph, with gusts 
  around 45 mph. 

* IMPACTS...Loose outdoor objects, such as decorations, will
  likely be blown about in the wind. Driving will become difficult
  on east-west oriented roads, especially for those in high-profile
  vehicles. A few falling tree branches will pose a hazard to 
  those outside. Additionally, isolated power outages will be 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds with gusts to 45 mph are forecast to occur. These
winds will make driving difficult for all vehicles. Boaters
should stay off area lakes as waters will become very rough. Weak
trees may be blown over and some minor structural damage is also
possible. Residents should take action to ensure all lightweight
outdoor objects are secured.

&&

$$

Carlaw
155 
WWUS74 KFWD 140938
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
338 AM CST Fri Dec 14 2018

...Windy conditions continuing across much of North and Central 
Texas this morning...

TXZ092>095-103>107-118>121-133-134-145-146-158>161-174-175-141800-
/O.CON.KFWD.WI.Y.0008.000000T0000Z-181214T1800Z/
Cooke-Grayson-Fannin-Lamar-Denton-Collin-Hunt-Delta-Hopkins-
Tarrant-Dallas-Rockwall-Kaufman-Johnson-Ellis-Hill-Navarro-Bell-
McLennan-Falls-Limestone-Milam-Robertson-
Including the cities of Gainesville, Sherman, Denison, Bonham, 
Paris, Carrollton, Denton, Lewisville, Flower Mound, Plano, 
McKinney, Allen, Frisco, Greenville, Commerce, Cooper, 
Sulphur Springs, Fort Worth, Arlington, Dallas, Rockwall, Heath, 
Terrell, Kaufman, Forney, Cleburne, Burleson, Waxahachie, Ennis, 
Midlothian, Hillsboro, Corsicana, Killeen, Temple, Fort Hood, 
Waco, Marlin, Mexia, Groesbeck, Cameron, Rockdale, Hearne, 
Franklin, and Calvert
338 AM CST Fri Dec 14 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

* TIMING...Now until Noon Friday.

* WINDS...Northerly winds between 20 and 30 mph, with gusts up to
  35 to 40 mph. 

* IMPACTS...Loose outdoor objects, such as decorations, will
  likely be blown about in the wind. Driving will become difficult
  on east-west oriented roads, especially for those in high-profile
  vehicles. A few falling tree branches will pose a hazard to 
  those outside. Additionally, isolated power outages will be 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of at least 20 to
30 mph are expected. Winds this strong can make driving
difficult, especially for high profile vehicles. Residents may
wish to take action to secure trash cans, lawn furniture, and
other lightweight outdoor objects that may be blown around in the
strong winds.

&&

$$

TXZ091-100>102-115>117-129>132-141>144-156-157-141800-
/O.CON.KFWD.WI.Y.0008.000000T0000Z-181214T1800Z/
Montague-Young-Jack-Wise-Stephens-Palo Pinto-Parker-Eastland-
Erath-Hood-Somervell-Comanche-Mills-Hamilton-Bosque-Lampasas-
Coryell-
Including the cities of Bowie, Nocona, Graham, Olney, Jacksboro, 
Decatur, Bridgeport, Breckenridge, Mineral Wells, Weatherford, 
Briar, Cisco, Eastland, Ranger, Gorman, Stephenville, Dublin, 
Granbury, Oak Trail Shores, Glen Rose, Comanche, De Leon, 
Goldthwaite, Hamilton, Hico, Clifton, Meridian, Valley Mills, 
Lampasas, Copperas Cove, and Gatesville
338 AM CST Fri Dec 14 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WINDS...Northerly winds between 25 and 30 mph, with gusts up to
  40 mph. 

* IMPACTS...Loose outdoor objects, such as decorations, will
  likely be blown about in the wind. Driving will become difficult
  on east-west oriented roads, especially for those in high-profile
  vehicles. A few falling tree branches will pose a hazard to 
  those outside. Additionally, isolated power outages will be 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds with gusts to 45 mph are forecast to occur. These
winds will make driving difficult for all vehicles. Boaters
should stay off area lakes as waters will become very rough. Weak
trees may be blown over and some minor structural damage is also
possible. Residents should take action to ensure all lightweight
outdoor objects are secured.

&&

$$
794 
WWUS74 KFWD 141735
NPWFWD

URGENT - WEATHER MESSAGE
National Weather Service Fort Worth TX
1135 AM CST Fri Dec 14 2018


TXZ092>095-103>107-118>121-133-134-145-146-158>161-174-175-141845-
/O.EXP.KFWD.WI.Y.0008.000000T0000Z-181214T1800Z/
Cooke-Grayson-Fannin-Lamar-Denton-Collin-Hunt-Delta-Hopkins-
Tarrant-Dallas-Rockwall-Kaufman-Johnson-Ellis-Hill-Navarro-Bell-
McLennan-Falls-Limestone-Milam-Robertson-
Including the cities of Gainesville, Sherman, Denison, Bonham, 
Paris, Carrollton, Denton, Lewisville, Flower Mound, Plano, 
McKinney, Allen, Frisco, Greenville, Commerce, Cooper, 
Sulphur Springs, Fort Worth, Arlington, Dallas, Rockwall, Heath, 
Terrell, Kaufman, Forney, Cleburne, Burleson, Waxahachie, Ennis, 
Midlothian, Hillsboro, Corsicana, Killeen, Temple, Fort Hood, 
Waco, Marlin, Mexia, Groesbeck, Cameron, Rockdale, Hearne, 
Franklin, and Calvert
1135 AM CST Fri Dec 14 2018

...WIND ADVISORY WILL EXPIRE AT NOON CST TODAY...

Northwest winds will continue to decrease in speed through this
afternoon and evening, but may remain gusty at times. The Wind 
Advisory will be allowed to expire at noon. 

$$

TXZ091-100>102-115>117-129>132-141>144-156-157-141845-
/O.EXP.KFWD.WI.Y.0008.000000T0000Z-181214T1800Z/
Montague-Young-Jack-Wise-Stephens-Palo Pinto-Parker-Eastland-
Erath-Hood-Somervell-Comanche-Mills-Hamilton-Bosque-Lampasas-
Coryell-
Including the cities of Bowie, Nocona, Graham, Olney, Jacksboro, 
Decatur, Bridgeport, Breckenridge, Mineral Wells, Weatherford, 
Briar, Cisco, Eastland, Ranger, Gorman, Stephenville, Dublin, 
Granbury, Oak Trail Shores, Glen Rose, Comanche, De Leon, 
Goldthwaite, Hamilton, Hico, Clifton, Meridian, Valley Mills, 
Lampasas, Copperas Cove, and Gatesville
1135 AM CST Fri Dec 14 2018

...WIND ADVISORY WILL EXPIRE AT NOON CST TODAY...

Northwest winds will continue to decrease in speed through this
afternoon and evening, but may remain gusty at times. The Wind 
Advisory will be allowed to expire at noon. 

$$

What forecasters said that day

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

NWS Fort Worth, TX wrote its last area forecast discussion before this wind advisory went out at Dec 12, 11:56 AM CST, 3 hours 27 minutes earlier.

Area forecast discussion, Dec 12, 11:56 AM CST, 3 hours 27 minutes before
Area Forecast Discussion
National Weather Service Fort Worth TX
1156 AM CST Wed Dec 12 2018

.UPDATE...
Thick mid and high level cloud cover continues to stream
overhead, which has limited insolation and kept temperatures
mainly in the 50s thus far today. The exception has been across
the southeast where warm air advection has allowed temperatures to
climb to near 60, so the forecast will be left alone in that
region. Elsewhere, high temperatures have been lowered a few
degrees based on the latest trends and the most recent guidance.

Otherwise, we continue to assess the potential for winter weather
for late Thursday into early Friday across the western half of the
forecast area. It still appears that the potential for
accumulating snow will be primarily limited to the higher
elevations across the west and southwest counties, and we will
have updated information available with the afternoon forecast
package.

30

&&

.AVIATION...
Southerly low level flow will continue today and tonight ahead of
a pair of shortwave troughs approaching from the west and
northwest, as well as a cold front approaching from the north.
The concern for the short-term has been assessing the potential
for MVFR ceilings as low level moisture increases. Low clouds have
in general been on the increase over the past few hours, so there
will at least be a TEMPO group for MVFR in the near term for all
airports. Guidance has been inconsistent regarding the prevalence
of low cigs, with the majority showing VFR conditions resuming
this afternoon. However, based on trends and some of the more
recent guidance, a prevailing MVFR group may eventually be needed
for the afternoon and evening time frame.

The cold front is set to push through the region on Thursday,
reaching both the DFW Metroplex and the Waco area by early
afternoon. A shift to northwest winds will accompany the front,
with speeds increasing through the afternoon. The 22KT in the
extended portion of the DFW TAF may need to include some stronger
gusts in future forecast for the Thursday night / Friday period.

At the upper levels, strong lift will occur as the upstream
systems merge, wrap-up and transition into a potent cut-off low
over North and Central Texas. A few thunderstorms cannot be ruled
out, though the better instability and stronger ascent will be
just east of the area. In addition, a low-end chance of a rain-
snow mix will exist (with little or no accumulation) late Thursday
into early Friday, but this will be addressed in later forecasts.

30

&&

.SHORT TERM... /Issued 455 AM CST Wed Dec 12 2018/
/Today and Tonight/

Our impending winter storm is currently bringing snow to the North
Cascades of Washington State and British Columbia. However,
tonight's rainmaker is the upper low moving equatorward along the
Pacific coast of Baja. As the upstream jet streak associated with
the Pacific Northwest storm surges into the Intermountain West
today, the Baja low will begin to track east across the high
terrain of Mexico. With the feature maintaining its latitude, it
will be forced to open up, eventually spreading mid-level lift
across Texas this evening. Its downstream conveyor is already
streaming high clouds across the Lone Star State, and these clouds
will continue to clutter the skies today. Temperatures are 10 to
20 degrees warmer than this time yesterday, and despite limited
sunshine today, the head start to the day and additional low-
level warm advection should assure highs exceed Tuesday's by a few
degrees. When forcing for ascent arrives this evening, elevated
showers will approach from the west, becoming more numerous as
they ingest the richer moisture across the eastern half of the
state. Mid-level lapse rates will be marginal for thunder, but a
few embedded cells may be intense enough to produce lightning.
These updrafts will intensify across East Texas, but the potential
for strong/severe storms will be greater east of our area as the
shearing system moves into the Ark-La-Tex Thursday morning.

25

&&

.LONG TERM... /Issued 455 AM CST Wed Dec 12 2018/
/Thursday Through Next Week/

Not that it's any secret, but big changes await Thursday into
early Friday morning regarding sensible weather across North and
Central Texas. A little potpourri of everything will occur from
start to finish on Thursday, with the strongest, non-convective
winds we've seen in quite a long time later in the day and through
early Friday morning.

In addition to the intense north and northwest winds arriving
later in the day, other impacts and weather elements we'll be
dealing will be a window later Thursday morning to Thursday
evening for for a strong or even marginal severe storm or two
across our far east and northeast counties. South to southwesterly
effective bulk shear values will not be in question, with values
40-50 knots, as wind fields from 850mb upward to jet level
continue to intensify through the day. Luckily, 0-1km bulk shear
will be only around 10 knots, though some backing could occur in
advance of the surface low and surface dryline tracking southeast
across the heart of the CWA. The one detriment for the potential
for severe storms will be moisture quality, with the Gulf of
Mexico having been well-scoured by recent arctic surface cold
fronts. Surface dew point temperatures are only forecast to be in
the 50s across these areas, so surface-based instability will be
fairly marginal, but mid level lapse rates will be steepening
quite a bit with the approach of the strong mid-upper level low
pressure system. Models are now finally coming into some sort of
agreement with a further south track, somewhere south of the I-20
corridor and into Central Texas. This will likely limit the dry-
slotting somewhat further south of our CWA. Most convection
"should" be elevated in nature, though obviously the strong winds
aloft and shear component could lead to mesocyclone development in
the mid levels with hail and add to the already gradient-driven,
increasing gusty winds at the surface. At this time, due to the
low level moisture/CAPE, any tornado threat should remain south
and east of area through the day.

Now, for the late Thursday afternoon into Friday morning time
period everyone is waiting for. With the further southward track
of the mid level system, the potential for seeing the "backward J"
PVA signature and intense tropopause fold (down to between
300-500mb) later in the day across areas west of I-35 will combine
with intensifying 925mb to 700mb frontogenesis in the northwest
"TROWAL" region of the system for the potential of a heavy and wet
snow either mixing in with a cold rain early on along and west of
U.S. 281 from Jacksboro to Evant and points west. The potential
for the oft-used term "dynamic cooling" will be high and allow the
column just above the surface to cool into a more favorable,
sub-0 degrees C dendritic zone due to the intense ascent. The
issue will be how it correlates with more subtle low level cold
advection, as the airmass upstream is not expected to be overly
cold. That said, the effect of wet-bulb cooling cannot be
understated here. Per detailed collaboration with our western
neighbors at WFOs EWX, OUN, and SJT, it was agreed upon to keep it
a rain/snow mix, though with enough cooling to input snowfall
amounts of 2-5 inches despite surface temperatures being above
freezing. We don't know how much surface temperatures will be
affected and how much impact will actually occur on road and
highway surfaces, but this much is certain: even low snow-water
ratios with a heavy/wet snowfall will at minimum cause slushiness
and impacts with any bursts. Typical problem areas such as Ranger
Hill on I-20 will especially feel the effects. A Winter Storm
Watch was agreed upon among our office and WFOs OUN/SJT with the
mix of a heavy wet snow, slushiness, and expected very gusty and
strong north-northwest winds from later Thursday afternoon through
at least daybreak Friday morning, as the cold core upper low
transits southeast across the region.

Some are probably wondering -- what about the high winds in
combination with the heavy snowfall? Well, with the wetness of
the snow with temperatures above freezing, yes it will be a
problem, but shouldn't blow around as much as one would think.
Thus, a Winter Storm Watch for heavy snow was preferred over a
Blizzard Warning. Regardless, it won't be pleasant late Thursday
into early Friday. As for the intense winds, they should remain
just below High Wind criteria (sustained 40 mph with gusts to 58
mph), and for simplicity sake early this morning, no High Wind
Watch was issued, but will need to be looked at very closely later
today for any additional highlights. As for temperatures Thursday
and Thursday night, with so many variables in the game (effects
of wet-bulb cooling, strength of low-level thermal advection, and
precipitation rates), it was agreed upon to go with cooler than
guidance blends in the west, but not as cold as it could possibly
get if the aforementioned processes are more intense than
expected. We'll just have to wait to see what really plays out
here. The system should continue to lift east away from the area
during the day Friday, with brisk and chilly conditions continuing
in its wake. Have some lingering light rain or rain-snow mix
across especially our east-northeast counties, including the DFW
and Sherman/Denison areas. At this time, temperatures are expected
to warm enough at the surface rise with partial west-east clearing
through the day that at this time, major impacts on roads and
travel are not expected, but do bear watching, especially Friday
morning for the usual metro commutes. The kiddos may get to see a
few big heavy flakes fall and possibly briefly accumulate on
grassy and elevated surfaces with a "dusting" in general terms,
but it wouldn't last long. Highs will slowly warm into the 40s,
though obviously highs will be dependent on any snow on the
ground, especially our far western counties and the timing of any
clearing.

Shortwave ridging is expected to evolve aloft across the Southern
Plains and North Central Texas this coming weekend. Moderating
temperatures with highs in the 50s (to possibly lower 60s in the
southwest counties) are expected with the passage of a broad
surface ridge on Sunday. As already noted, temperatures out west
will depend on any residual snow on the ground from our potent
late week system. Otherwise, dry conditions are expected early
next week (Monday and Tuesday) as we await yet another storm
system developing across the Desert Southwest and Intermountain
West for later next week. For now, have removed low PoPs Tuesday
and will introduce very low convective chances on Wednesday with
low level warm advection ensuing with mid level ridging
dampening. As one would expect, medium range models and their
ensemble solutions are all over the place, so no bold predictions
for what to expect late next week.

05/

&&

.PRELIMINARY POINT TEMPS/POPS...
Dallas-Ft. Worth    61  55  61  39  49 /   0  30  60  60  40
Waco                63  54  61  38  49 /   5  40  30  40  20
Paris               58  54  62  41  48 /   0  70  70  70  60
Denton              60  53  59  38  48 /   0  30  60  70  40
McKinney            60  56  61  39  48 /   0  40  60  70  50
Dallas              62  56  62  39  49 /   0  40  60  60  40
Terrell             61  57  63  39  50 /   0  50  50  60  40
Corsicana           64  56  62  39  48 /   0  50  40  50  30
Temple              64  52  61  38  50 /   5  40  20  40  20
Mineral Wells       61  49  53  35  48 /   0  20  70  60  30

&&

.FWD WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from Thursday afternoon through Friday
morning for TXZ100-101-115-116-129-130-141-142.

&&

30/92
Hazardous weather outlook, Dec 12, 5:20 AM CST, 10 hours 3 minutes before
Hazardous Weather Outlook
National Weather Service Fort Worth TX
520 AM CST Wed Dec 12 2018

TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-131200-
Montague-Cooke-Grayson-Fannin-Lamar-Young-Jack-Wise-Denton-Collin-
Hunt-Delta-Hopkins-Stephens-Palo Pinto-Parker-Tarrant-Dallas-
Rockwall-Kaufman-Van Zandt-Rains-Eastland-Erath-Hood-Somervell-
Johnson-Ellis-Henderson-Comanche-Mills-Hamilton-Bosque-Hill-Navarro-
Freestone-Anderson-Lampasas-Coryell-Bell-McLennan-Falls-Limestone-
Leon-Milam-Robertson-
520 AM CST Wed Dec 12 2018

This Hazardous Weather Outlook is for North and Central Texas.

.DAY ONE...Today and Tonight.

Low thunderstorm chances will return tonight, especially along and
east of Interstate 35 where an occasional lightning strike will be
possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thunderstorm chances will increase on Thursday, especially along and
east of the Interstate 35E/45 corridors as a surface dryline surges
east through the area late in the day. While the wind shear will be
strong Thursday, a cool and semi-stable surface layer should keep
the greater severe threat east and southeast of the area. Hail and
frequent lightning will be the primary threats with the more intense
thunderstorms, but could add to the very gusty system winds that
will increase through the day as discussed below.

Very windy conditions are expected Thursday, as a vigorous storm
system and strong cold front move across the area. North and
northwest winds between 25 and 35 mph, with gusts to between 40 and
50 mph are expected by Thursday evening, especially across the west.
Wind speeds will slowly decrease late Thursday night into Friday but
remain very brisk and gusty on Friday.

As temperatures fall Thursday evening, rain may mix with snow or
change to a wet snow, possibly heavy at times along and west of a
line from Jacksboro and Mineral Wells to Evant and Goldthwaite where
a Winter Storm Watch has been hoisted for late Thursday afternoon
through mid-morning Friday. Surface temperatures should remain at or
above freezing, but these areas could see wet snow accumulations of
2 to 5 inches, especially on grassy and elevated surfaces. Regardless
of above-freezing surface temperatures, slushy wet snow accumulations
on area roads across the Winter Storm Watch area will combine with
the very windy conditions to create impacts to travel for both the
Thursday evening and Friday morning commutes.

On Friday, a lighter and more brief rain and wet snow mix could
occur as far east as Paris and Rockwall to Waco and Marlin. Due to
warmer surface temperatures and brevity of any wintry mix, little to
no additional impacts are expected with the Friday precipitation.
The timing and impacts from this potential winter weather will
continue to be refined in future forecasts and all interests should
monitor future forecasts and statements closely regarding this
intense storm system.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 12, 3:50 AM CSTWinter Storm WatchFWDComanche, Eastland, Erath, Hamilton, Jack, Lampasas and 4 more25 hr

Nearby

Wind Advisories in Texas, 2018Every wind advisory in 2018

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.