⚠️ Severe Thunderstorm Warning – Fannin, TX; Grayson, TX – Sunday, September 20, 2026

Severe Thunderstorm Warning issued September 20 at 6:21PM CDT until September 20 at 7:15PM CDT by NWS Fort Worth TX

Details

SVRFWD

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for…
Southeastern Grayson County in north central Texas…
Northwestern Fannin County in north central Texas…

* Until 715 PM CDT.

* At 620 PM CDT, a severe thunderstorm was located over Howe, with
another storm located near Sherman. Both storms are moving
northeast at 5 mph.

HAZARD…60 mph wind gusts and quarter size hail.

SOURCE…Radar indicated.

IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* Locations impacted include…
Sherman, Denison, Van Alstyne, Howe, Bells, Tom Bean, Savoy,
Knollwood, Dorchester, Valley Lake, Boddie, Ida, Carpenters Bluff,
Ambrose, Sowells Bluff, Luella, White Mound, Farmington, and
Cannon.

Instructions

For your protection get inside a sturdy structure and stay away from
windows.

Heavy rainfall is occurring with this storm, and may lead to flash
flooding. Do not drive your vehicle through flooded roadways.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.