A strong cold front, followed by cold air with an early season source in western Canada and an indirect connection to the North Pole, brought an unusual early season freeze to most of the southern tip of Texas during the pre-dawn hours (mostly) on November 14th, 2018.Minimum temperatures in the freeze area typically ranged from 27 to 32 degrees, coldest in rural and wind protected locations.  Durations of the freeze lasted from around two hours in parts of the Rio Grande Valley outside of core urban locations, to 7 hours in wind protected ranch and brush country in Deep South Texas.

Frost/Freeze in WILLACY, TEXAS
From 14-NOV-18 04:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: Mesonet

Low temperatures fell to or below 32 degrees during the pre-dawn areas, mainly in rural locations but also around Raymondville.   Minimum measured and estimated temperatures ranged from the upper 20s to around 30 degrees.

Frost/Freeze in CAMERON, TEXAS
From 14-NOV-18 06:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: Mesonet

Low temperatures fell to or below 32 degrees during the pre-dawn hours, mainly in rural locations but also around Harlingen.   Minimum measured and estimated temperatures ranged from around 30 along the Cameron/Willacy and eastern Hidalgo line, to the mid and upper 30s around Brownsville.

Frost/Freeze in BROOKS, TEXAS
From 14-NOV-18 01:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: COOP Observer

Low temperatures fell to or below 32 degrees around 1 AM (later in unprotected areas and small cities) and continued through 8 AM.  Minimum measured temperatures in the Falfurrias area ranged from 30 to 33 degrees, but were likely between 28 and 32 elsewhere in the County.

Frost/Freeze in INLAND KENEDY COUNTY, TEXAS
From 14-NOV-18 01:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: COOP Observer

Low temperatures fell to or below 32 degrees around 1 AM (later in unprotected areas and small cities) and continued through 8 AM.  Minimum measured temperatures ranged from 24/25 in rural Armstrong to 31 east of Sarita (closer to the coast).

Frost/Freeze in STARR, TEXAS
From 14-NOV-18 01:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: AWOS

Low temperatures fell to or below 32 degrees around 1 AM (later in unprotected areas and small cities) and continued through 8 AM.  Minimum measured and estimated temperatures ranged from the mid and upper 20s (28 at Rio Grande City); Falcon Lake Mesowest (a protected area) briefly fell below 25 degrees.

Frost/Freeze in NORTHERN HIDALGO COUNTY, TEXAS
From 14-NOV-18 01:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: Mesonet

Low temperatures fell to or below 32 degrees around 1 AM (later in unprotected areas and small cities) and continued through 8 AM.  Minimum measured and estimated temperatures ranged from the mid and upper 20s (27 at Linn/San Manuel) to around 30 degrees closer to Edinburg.

Frost/Freeze in SOUTHERN HIDALGO COUNTY, TEXAS
From 14-NOV-18 04:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: Mesonet

Low temperatures fell to or below 32 degrees during the pre-dawn areas, mainly in rural locations but also in suburbs around McAllen, Pharr, Mission, and in parts of Weslaco.   Minimum measured and estimated temperatures ranged from the mid and upper 20s in wind-protected areas to 30 to 33 degrees between Mercedes and Mission.

Frost/Freeze in JIM HOGG, TEXAS
From 14-NOV-18 01:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: AWOS

Low temperatures fell to or below 32 degrees around 1 AM (later in unprotected areas and small cities) and continued through 8 AM.  Minimum measured and estimated temperatures ranged from the mid to upper 20s (29 at Hebbronville).

Frost/Freeze in ZAPATA, TEXAS
From 14-NOV-18 01:00:00 to 14-NOV-18 08:00:00 (CST-6)
Property damage: 0.00K
Reported by: AWOS

Low temperatures fell to or below 32 degrees around 1 AM (later in unprotected areas and small cities) and continued through 8 AM.  Minimum measured and estimated temperatures ranged from the mid and upper 20s (28 at Zapata airport) to around 32 just east of Falcon International Reservoir.