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

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

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.

**What You Should Do:**

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.

**Alert Details:**

- **Severity:** Severe

- **Urgency:** Immediate

- **Issued by:** NWS Fort Worth TX

- **Effective:** Sep 20, 2026 6:21 PM UTC

- **Expires:** Sep 20, 2026 7:15 PM UTC

*This alert was automatically distributed from the National Weather Service via the IPAWS All-Hazards Information Feed.*