Severe Weather Update 5/10/2019

Over the night (5/9 into the morning of 5/10), the District received just over 3 inches of rain into the drainage system. All pumps are operational and internal water levels within the community are slowly going down. Supplemental pumps purchased by SPLID after Hurricane Harvey have been and continue to be deployed as a precaution due to the additional rain projected over the next several days. With the amount of water already in the lakes and channels, you will continue to see street ponding during periods of heavy rains, which will recede slowly with pumping.

The Brazos River is expected to crest in Richmond over the weekend at 48.4 feet (NWS Brazos River Link), which is a level that will be 6-9 feet below the top of the District levees.

 

Severe Weather Update 5/9/2019

Severe Weather Outlook

Starting at 1 PM, the NWS anticipates placing the entire region within a flash flood watch which could run through 7 PM Saturday evening. From this afternoon into Friday morning, the first of two storm systems could make its way through the region with the second round of storms moving through late Friday and running through Saturday evening. Over the next 2 to 3 days, the region could experience widespread rainfall amounts between 5 to 8 inches with isolated amounts between 9 to 12 inches. These storms could produce rainfall intensities of 2 to 4 inches per hour. The exact timing and location of the most severe weather is unknown and can develop/change rapidly, so we encourage everyone keep informed by following the Fort Bend Office of Homeland Security & Emergency Management and the National Weather Service Houston/Galveston websites.

Brazos River Forecast

Late last night we saw the Brazos River in San Felipe crest around Gage Elevation 119.45 feet. The wave will continue to work its way through Fort Bend County, but we anticipate areas upstream of Richmond not impacted by Tuesday’s rain to be currently cresting or crest within the next few hours. Based on the rainfall received on Tuesday night, Richmond remains around Gage Elevation 47.35 feet and will remain elevated through the end of the forecast window, which currently ends on Tuesday morning. The current forecasts only includes the next 24 hours of rainfall. With significant rain in the forecast through Saturday, we could see the timing of the Brazos River receding shift keeping us in Minor Flood Stage through the majority of next week. The impacts to the Brazos River will be dependent upon the where and how much rainfall occurs over the next several days.

Based on rainfall received upstream of Hempstead, we are monitoring additional rises that are occurring at the Bryan and Hempstead Brazos River Gauges as well as ones on the Navasota River. At this time, these additional rises are not forecasted to be higher than peaks experience at these points last week and are not causing additional rises at the San Felipe and Richmond gauges.

Severe Weather Update 5/8/2019

The past 24-hours produced significant rainfall across the Houston region. Additional rainfall is expected through the remainder of this week, as detailed below. The SPLID levee and drainage system is currently in normal flood operations.

The Brazos River is projected to crest 9-12 feet below the top of the SPLID levees.

We will continue to update this website as more information becomes available. For the latest in area weather information, please visit the Fort Bend Office of Homeland Security & Emergency Management website.

Tuesday Summary

On Tuesday, we experienced significant rainfall rates in the Rosenberg to Sugar Land area through central Fort Bend County. In the Rosenberg area, one CoCoRaHS observer recorded 11.72 inches over a 6 hour period. In Sugar Land, the Fort Bend LID 2 Ditch H at Ditch A structure recorded approximately 10.64 inches within a 6 hour period. Many personal weather stations made similar observations showing that a significant portion of central Fort Bend County averaged 8 to 10+ inches on Tuesday. According to preliminary rainfall information, areas within Fort Bend County experienced rainfall rates similar to what we experienced in Hurricane Harvey.

Remainder of the Week

We continue to have the threat for severe, heavy rainfall starting this afternoon and running through the weekend. The current forecasts are showing the most significant rainfall over the next 24 to 48 hours staying to our north, but our region could see another 1 to 2 inches through Thursday. Based on the current forecasts, our biggest threat for heavy rain could occur Thursday and run through Saturday. Overall, between now through Saturday our region has the potential for widespread rainfall amounts between 5 to 8 inches with isolated areas possibly seeing 9 to 12 inches.

Brazos River Forecast

Based on the rainfall received several streams in Fort Bend County experienced flash flooding conditions with rapid rises over a short period. The Brazos River in Hempstead was not impacted by Tuesday’s storms and peaked around Gauge 46.84 early this morning. San Felipe was also not impacted by this event and is forecasted to hit Gauge Elevation 119.6 tomorrow morning. The Brazos River in Richmond experienced a 3 foot rise during yesterday’s storm and the 8:39 AM forecast shows the Brazos River in Richmond staying elevated through Saturday morning with a peak near Gauge Elevation 47.2 feet.

With elevated levels and saturated soils, we recommend that everyone stay informed by visiting the Fort Bend Office of Homeland Security & Emergency Management website and the National Weather Service Houston/Galveston for updates as things develop.