#6404 Postby jasons2k » Wed Feb 23, 2022 10:06 pm
This was sent from Jeff at about 7:30:
Winter Weather Advisory now in effect for tonight into early Thursday for areas NW of Houston.
This advisory is roughly along and NW of a lien from Columbus to Brenham to Huntsville.
Shallow, yet very cold arctic air mass continues to spill into the region this evening with surface freezing line extending from west of Huntsville to Brenham to Columbus. Areas of light freezing rain and freezing drizzle continue to develop to the northwest of this line and this will continue through much of the night. While surface ground temperatures are in the mid 30’s, elevated structures such as bridges, overpasses, rooftops, trees, power lines have cooled to or below freezing and this is allowing light icing to develop on these surfaces.
Expect additional precipitation tonight to generally average less than .10 of an inch and more likely around .05 of an inch, but with temperatures falling into the upper 20’s in the advisory area, much of what falls will freeze on contact with sub freezing surfaces.
Expect the freezing line to advance some southward tonight, but at this time do not expect any freezing drizzle into the metro Houston area, it is possible portions of Waller, Northern Fort Bend, Montgomery, and extreme NW Harris County could see temperatures cold enough to produce a few icy patches on bridges.
Temperatures will remain cold tomorrow with many areas only reaching the low to mid 40’s on continued thick clouds and drizzle/light rain.
Same areas could again be near or below freezing tomorrow night and with continued chances of drizzle and light rain…some additional icing will be possible in those areas…again this will likely be N and W of the metro Houston area.
Jeff Lindner
Director Hydrologic Operations Division/Meteorologist
Harris County Flood Control District
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