[Advising] EM Alert: Severe Storm Possibility and Heavy Rain/Flood Forecast from NWS

From: Lorenzo Sanchez Sent: Monday, May 12, 2014 9:43 AM To: Be Prepared Subject: EM Alert: Severe Storm Possibility and Heavy Rain/Flood Forecast from NWS UTSA Preparedness Partners, Please see the full forecast below provided by the National Weather Service regarding an approaching weather system. To summarize, the SA metro may experience heavy storms this afternoon/evening, with total rainfall between 1 - 3 inches, possibly higher in localized areas. Strong winds and hail may be present with these storms. A flash flood watch has been issued from 7:00 pm tonight through noon Tuesday. Please be cautious on roadways if traveling in heavy storms, and do not attempt low-water crossings. Stay informed of weather conditions by visiting the NWS website at www.weather.gov/sanantonio<http://www.weather.gov/sanantonio> or local news stations. Please let me know if you have any questions. Thanks! ______________________________ Lorenzo D. Sanchez, MPA, CEM Director of Emergency Management The University of Texas at San Antonio University Police Department Office of Emergency Management One UTSA Circle San Antonio, Texas 78249 Phone: (210) 458-6756 Fax: (210) 458-7602 Email: lorenzo.sanchez@utsa.edu<mailto:lorenzo.sanchez@utsa.edu> Website: www.utsa.edu/utsapd<http://www.utsa.edu/utsapd> Campus Alerts: http://alerts.utsa.edu/ [Description: cid:image001.jpg@01CD17CE.5E7D8A80]<http://www.utsa.edu/>[Description: Facebook]<http://www.facebook.com/UTSAPoliceDepartment>[Description: Twitter]<http://twitter.com/UTSA_Police> From: Jon Zeitler [mailto:jon.zeitler@noaa.gov] Sent: Monday, May 12, 2014 5:28 AM Subject: 530 am Mon 5/12 -- Severe Storm and Heavy Rain/Flood Forecast from NWS South Central Texas Partners... ...HEADLINE...Severe storms also possible late this afternoon and evening. Flash flood watch from 7 pm through noon Tuesday... ...AREA OF CONCERN...The entire area for severe storms late this afternoon and evening. Then locations along and east of U.S. Highway 83 for heavy rain late tonight into Tuesday morning. ...IMPACTS...The severe storms will have a main threat of damaging winds and a lesser threat of large hail. Rainfall late tonight into early Tuesday will average from 1 to 3 inches east of U.S. Highway 83, with isolated spots receiving up to 5 inches. ...TIMING...The severe threat mainly from 3 pm to 10 pm. The heavy rain threat mainly from 10 pm to 6 am, which could cause significant issues for the Tuesday morning commute. ...CONFIDENCE...High ...DISCUSSION...Moist Gulf air, an upper level trough, and a cold front will combine to produce widespread showers and thunderstorms across the area from late this afternoon through noon Tuesday. Severe storms are possible ahead of the front late this afternoon through late evening. Heavy rain is possible along and behind the front late this evening through Tuesday morning. While massive flooding is not expected, the rainfall may occur in a 2-4 hour period, and cause significant flooding in urban areas and water rises in north-to-south flowing rivers and creeks such as the Frio, Sabinal, and Nueces. Please emphasize with your staff and the public to Turn Around, Don't Drown and not drive anywhere where deep water covers the road. As usual, the rain and flooding will be overnight, when visibility is greatly reduced. The morning commute could be difficult in Austin and treacherous in San Antonio if the forecast rainfall occurs, as low water crossings and low-lying spots may be flooded, and heavy rain still ongoing in San Antonio. The latest information is on the Austin-San Antonio National Weather Service: Website: www.weather.gov/austin<http://www.weather.gov/austin> Twitter: @NWSSanAntonio<https://twitter.com/NWSSanAntonio> Facebook: US National Weather Service Austin-San Antonio Jon Zeitler National Weather Service Austin-San Antonio TX [cid:part3.05030901.02080607@noaa.gov] [cid:image004.png@01CF6DC6.90586CA0] [cid:image005.png@01CF6DC6.90586CA0] [cid:image006.png@01CF6DC6.90586CA0]