Alert archive / Texas / River Flood Warnings in 2018

River Flood Warning 33, NWS Houston/Galveston, TX

March 29, 2018Montgomery County, Texas

NWS Houston/Galveston, TX issued this river flood warning at Mar 29, 2018, 7:24 AM CDT for Montgomery County, Texas. It took effect at Mar 29, 2018, 10:00 PM CDT. It was in force for 46 hr.

The area

The counties it named.

The facts

Issued: Mar 29, 2018, 7:24 AM CDT (12:24 UTC)
In effect from: Mar 29, 2018, 10:00 PM CDT
Expired: Mar 31, 2018, 8:06 PM CDT
In force: 46 hr
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon
Flood severity: Minor

County Montgomery County, TX

The radar

The Houston radar (KHGX), 101 km from the middle of the area, began a volume at 12:28 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 river

Written for the forecast point Lake Creek above The Woodlands (FCWT2). The gauge peaked at 141.74 ft at Mar 30, 2018, 10:00 AM CDT.

Action stage: 129 ft
Minor stage: 138 ft
Moderate stage: 142 ft
Major stage: 154 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 08067920, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

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

NWS Houston/Galveston, TX wrote its last area forecast discussion before this river flood warning went out at Mar 29, 4:45 AM CDT, 2 hours 39 minutes earlier.

Area forecast discussion, Mar 29, 4:45 AM CDT, 2 hours 39 minutes before

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Hazardous weather outlook, Mar 29, 4:51 AM CDT, 2 hours 33 minutes before

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In the hours before

Special weather statement, Mar 29, 1:46 AM CDT, 5 hours 38 minutes before

Special Weather Statement
National Weather Service Houston/Galveston TX
146 AM CDT THU MAR 29 2018

TXZ226-227-235>238-290745-
Brazoria TX-Wharton TX-Jackson TX-Galveston TX-Fort Bend TX-
Matagorda TX-
146 AM CDT THU MAR 29 2018

...SPECIAL WEATHER STATEMENT FOR SOUTHEASTERN WHARTON...SOUTHEASTERN
JACKSON...SOUTHWESTERN GALVESTON...SOUTHEASTERN FORT BEND...BRAZORIA
AND MATAGORDA COUNTIES UNTIL 245 AM CDT...

At 145 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Fairchilds to near Blessing to near Point
Comfort. Movement was east southeast at 30 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Matagorda, Lake Jackson, Angleton, Bay City, Clute, Hitchcock,
Palacios, West Columbia, Sweeny, South Texas Nuclear Plant, Richwood,
Brazoria, Needville, Jones Creek, Danbury, Holiday Lakes, Fairchilds,
Bailey's Prairie, Liverpool and Bonney.

LAT...LON 2853 9617 2865 9598 2858 9622 2875 9617
      2864 9631 2868 9639 2874 9640 2872 9663
      2892 9629 2945 9579 2934 9507 2882 9557
      2871 9591 2863 9596 2870 9577 2853 9613
TIME...MOT...LOC 0645Z 278DEG 26KT 2939 9576 2892 9622 2869 9660

Special weather statement, Mar 29, 2:04 AM CDT, 5 hours 20 minutes before

Special Weather Statement
National Weather Service Houston/Galveston TX
204 AM CDT THU MAR 29 2018

TXZ199-200-213-214-226-227-237-238-290800-
Brazoria TX-Wharton TX-Chambers TX-Liberty TX-Galveston TX-Harris TX-
Fort Bend TX-Montgomery TX-
204 AM CDT THU MAR 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN WHARTON...GALVESTON...
SOUTHEASTERN MONTGOMERY...EASTERN FORT BEND...WESTERN CHAMBERS...
NORTHERN BRAZORIA...LIBERTY AND HARRIS COUNTIES UNTIL 300 AM CDT...

At 203 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Splendora to near Boling-Iago. Movement
was east at 35 mph.

Dime size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Pasadena, Pearland, League City, Sugar Land, Baytown, Missouri City,
Galveston Island West End, Galveston Causeway, Texas City,
Friendswood, La Porte, Deer Park, southeastern Rosenberg, Alvin,
Dickinson, Stafford, South Houston, Bellaire, Humble and West
University Place.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 2954 9470 2953 9474 2952 9476 2953 9478
      2969 9469 2979 9473 2966 9492 2976 9508
      2968 9498 2954 9501 2937 9482 2936 9489
      2927 9490 2916 9500 2932 9592 3031 9514
      3029 9466 3011 9460 3011 9444 2989 9444
TIME...MOT...LOC 0703Z 278DEG 29KT 3024 9513 2923 9593

11

Local storm report, Mar 29, 3:36 AM CDT, 3 hours 48 minutes before

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The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 28, 7:29 PM CDT	River Flood Warning	HGX	Polk, San Jacinto	35 hr
Mar 28, 7:58 PM CDT	Special Weather Statement	HGX	Brazos	47 min
Mar 28, 8:30 PM CDT	Areal Flood Advisory	HGX	Brazos, Burleson, Grimes	3 hr
Mar 28, 8:32 PM CDT	Special Weather Statement	HGX	Madison	28 min
Mar 28, 8:35 PM CDT	River Flood Warning	HGX	Chambers, Liberty	9 days
Mar 28, 8:35 PM CDT	River Flood Warning	HGX	Chambers, Liberty	11 days
Mar 28, 8:35 PM CDT	River Flood Warning	HGX	Madison, Walker	48 hr
Mar 28, 8:35 PM CDT	River Flood Warning	HGX	Hardin, Liberty, Polk	3 days
Mar 28, 8:35 PM CDT	River Flood Warning	HGX	Burleson, Washington	37 hr
Mar 28, 8:57 PM CDT	Special Weather Statement	HGX	Houston	48 min
Mar 28, 9:18 PM CDT	Flash Flood Warning	HGX	Brazos, Burleson, Grimes, Washington	3 hr
Mar 28, 9:49 PM CDT	Special Weather Statement	HGX	Grimes, Walker	41 min
Mar 28, 10:02 PM CDT	Flash Flood Warning	HGX	Grimes, Houston, Madison, Montgomery, Trinity, Walker	3 hr
Mar 28, 10:09 PM CDT	Areal Flood Advisory	HGX	Houston, Polk, San Jacinto, Trinity	3 hr
Mar 28, 11:02 PM CDT	Special Weather Statement	HGX	Matagorda	43 min
Mar 28, 11:17 PM CDT	Special Weather Statement	HGX	Brazos, Burleson	43 min
Mar 28, 11:33 PM CDT	Flash Flood Warning	HGX	Houston, Polk, San Jacinto, Trinity	3 hr
Mar 28, 11:46 PM CDT	Special Weather Statement	HGX	Brazoria	44 min
Mar 29, 12:04 AM CDT	Flash Flood Warning	HGX	Austin, Brazos, Burleson, Grimes, Houston, Madison and 4 more	3 hr
Mar 29, 12:49 AM CDT	Special Weather Statement	HGX	Jackson, Wharton	41 min
Mar 29, 1:03 AM CDT	Areal Flood Advisory	HGX	Austin, Colorado, Fort Bend, Grimes, Harris, Liberty and 6 more	3 hr
Mar 29, 1:06 AM CDT	Severe Thunderstorm Warning	HGX	Colorado, Fort Bend, Jackson, Wharton	39 min
Mar 29, 1:16 AM CDT	River Flood Warning	HGX	Waller	32 hr
Mar 29, 1:21 AM CDT	Areal Flood Advisory	HGX	Jackson, Wharton	3 hr
Mar 29, 1:21 AM CDT	River Flood Warning	HGX	Harris, Waller	24 hr
Mar 29, 1:27 AM CDT	Special Marine Warning	HGX		93 min
Mar 29, 1:40 AM CDT	Flash Flood Warning	HGX	Montgomery, Polk, San Jacinto, Trinity, Walker	5 hr
Mar 29, 1:46 AM CDT	Special Weather Statement	HGX	Brazoria, Matagorda	59 min
Mar 29, 1:52 AM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Jackson, Matagorda, Wharton	38 min
Mar 29, 1:58 AM CDT	Special Marine Warning	HGX		2 hr
Mar 29, 2:04 AM CDT	Special Weather Statement	HGX	Chambers, Harris, Liberty	56 min
Mar 29, 2:08 AM CDT	Areal Flood Advisory	HGX	Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty	3 hr
Mar 29, 2:09 AM CDT	Areal Flood Advisory	HGX	Brazoria, Fort Bend, Jackson, Matagorda, Wharton	3 hr
Mar 29, 2:13 AM CDT	Tornado Warning	HGX	Brazoria, Fort Bend	17 min
Mar 29, 2:28 AM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Galveston, Harris, Matagorda	32 min
Mar 29, 2:39 AM CDT	River Flood Warning	HGX	Liberty, Polk, San Jacinto	3 days
Mar 29, 2:51 AM CDT	Severe Thunderstorm Warning	HGX	Chambers, Galveston, Harris, Liberty	39 min
Mar 29, 2:53 AM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Galveston, Harris, Matagorda	39 min
Mar 29, 2:56 AM CDT	Tornado Warning	HGX	Galveston	19 min
Mar 29, 3:01 AM CDT	Areal Flood Advisory	HGX	Brazoria, Galveston, Harris, Matagorda	119 min
Mar 29, 3:12 AM CDT	Tornado Warning	HGX	Galveston	18 min
Mar 29, 3:31 AM CDT	Severe Thunderstorm Warning	HGX	Chambers, Galveston	14 min
Mar 29, 3:32 AM CDT	Special Marine Warning	HGX		58 min
Mar 29, 3:49 AM CDT	Special Marine Warning	HGX		56 min
Mar 29, 3:57 AM CDT	Areal Flood Advisory	HGX	Austin, Colorado, Fort Bend, Grimes, Harris, Liberty and 6 more	3 hr
Mar 29, 4:59 AM CDT	Special Marine Warning	HGX		61 min
Mar 29, 5:37 AM CDT	River Flood Warning	HGX	Montgomery	51 hr
Mar 29, 5:37 AM CDT	River Flood Warning	HGX	Harris, Montgomery	4 days
Mar 29, 6:53 AM CDT	River Flood Warning	HGX	Harris, Liberty, Montgomery	5 days
Mar 29, 6:53 AM CDT	River Flood Warning	HGX	Montgomery	41 hr
Mar 29, 9:30 AM CDT	River Flood Warning	HGX	Harris	24 hr
Mar 29, 9:34 AM CDT	River Flood Warning	HGX	Liberty, Polk, San Jacinto	57 hr
Mar 29, 4:15 PM CDT	Small Craft Advisory	HGX		6 hr

Nearby

River Flood Warnings in Texas, 2018 Every river flood warning 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.