Alert archive / Texas / Flash Flood Watches in 2017
Flash Flood Watch 3, NWS Houston/Galveston, TX
NWS Houston/Galveston, TX issued this flash flood watch at Apr 10, 2017, 2:44 PM CDT for 8 counties in Texas. It took effect at Apr 10, 2017, 4:00 PM CDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Apr 10, 2017, 2:44 PM CDT (19:44 UTC)
- In effect from
- Apr 10, 2017, 4:00 PM CDT
- Expired
- Apr 11, 2017, 7:00 AM CDT
- In force
- 15 hr
- Issued by
- NWS Houston/Galveston, TX
- Flood severity
- None
Counties Brazos County, TX, Burleson County, TX, Grimes County, TX, Houston County, TX, Madison County, TX, Trinity County, TX, Walker County, TX, Washington County, TX
The radar
The Ft Hood radar (KGRK), 140 km from the middle of the area, began a volume at 19:49 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 nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 7.7 hours before the alert went out and 265 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 784 J/kg
- Mixed-layer CIN
- -234 J/kg
- Mixed-layer LCL
- 738 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 313 m²/s²
- 0-3 km storm-relative helicity
- 344 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Apr 10, 12:45 PM CDT, 1 hour 59 minutes earlier.
Area forecast discussion, Apr 10, 12:45 PM CDT, 1 hour 59 minutes before
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Everything else NWS Houston/Galveston, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 10:51 AM CDT | Small Craft Advisory | HGX | 18 hr |
Nearby
Flash Flood Watches in Texas, 2017Every flash flood watch in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.