Severe Thunderstorm Warning Issued for Grimes, Montgomery and Walker Counties in Texas

Source: NOAA · Southeastern Texas

This alert is no longer in effect.

NOAA issued it on May 18, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).

Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.

A Severe Thunderstorm Warning is in effect until 7:30 PM CDT for east central Grimes County, northwestern Montgomery County and southwestern Walker County in southeastern Texas.

Read this weather record in 30 seconds

Record type
Severe Thunderstorm Warning
Affected area
Southeastern Texas
Issued
May 18, 2026
Issuing authority
NWS Houston/Galveston TX

Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.

Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Southeastern Texas.

Alert Details

The National Weather Service in League City has issued a Severe Thunderstorm Warning for east central Grimes County, northwestern Montgomery County and southwestern Walker County in southeastern Texas. The alert is effective from 7:07 PM CDT on May 10, 2026, until 7:30 PM CDT on May 10, 2026.

Affected Areas

The warning covers east central Grimes County, northwestern Montgomery County and southwestern Walker County in southeastern Texas. Locations impacted include Huntsville, New Waverly, Huntsville State Park and Richards.

What You Should Do

For your protection move to an interior room on the lowest floor of a building. If on or near Lake Conroe, get away from the water and move indoors or inside a vehicle. Remember, lightning can strike out to 15 miles from the parent thunderstorm. If you can hear thunder, you are close enough to be struck by lightning. Move to safe shelter now! Do not be caught on the water in a thunderstorm.

Expected Conditions

At 7:06 PM CDT, a severe thunderstorm was located 8 miles northeast of Montgomery, or 9 miles northwest of Willis, and is nearly stationary. Hazards include 60 mph wind gusts and quarter size hail.

Timeline

The warning is effective from 7:07 PM CDT until 7:30 PM CDT on May 10, 2026.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
A Severe Thunderstorm Warning is in effect until 7:30 PM CDT for east central Grimes County, northwestern Montgomery County and southwestern Walker County in southeastern Texas.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Southeastern Texas. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.