Heavy Rain Impacts the Gulf Coast Monday April 14, 2014
- An Event Review -
An active upper level southern stream storm system was positioned over the central Gulf Coast on the morning of April 14.
Aloft, amplified upper level ridge of high pressure over the central Gulf caused a highly diffluent flow to orginate
from the Southeast to across the Mississippi Gulf Coast. At same time, an area of mid level height falls associated with an
eastward moving trough pushed across the lower Mississippi River Valley causing an area of enhanced lift to set up
over the central Gulf Coast (Figs. 1 and 2). At the surface, (Fig. 3) a well defined pre-frontal trough provided a focus for lift and
was analyzed from central Alabama southwest to the Mississippi Sound. RAOB data (Fig. 4) from KLIX (New Orleans, LA)
from 12Z April 14, indicated precipitable water values near 1.65 inches was more than sufficient for heavy rains given
the upper level support positioned across the area. These moisture values were well above normal (Fig. 5) for the middle of April.
National Weather Service Mobile, AL Meteorologists issued a Flash Flood Watch for the central Gulf Coast early in
the morning of Monday April 14 in anticipation of excessive rainfall.
The following pictures show the damage caused by the force of water when rivers, creek beds and culverts become rain swollen.
A good reminder is, if driving and water covers the road, the best course of action is to turn around, don't drown.
Click here for helpful resources regarding flooding => Turn Around, Don't Drown
Acknowledgements: The author wishes to thank Cody Lindsey NWS Mobile, AL Senior Meteorologist/Forecaster
for reviewing this page. The forecast team of NWS Mobile, AL, the Storm
Prediction Center (SPC) in Norman, OK for sounding plots, Matthew Bunkers - NWS
Rapid City, SD and Scott Lincoln - NWS Lower MS River Forecast Center (LMRFC) for
providing precipitable water climatic charts. Much appreciation
goes to Cocorahs volunteers, NWS Mobile, AL COOP Observers, Dr. Sytske K. Kimball -
University of South Alabama Mesonet Coordinator and to William Pizzolato -Soil Conservation
Technician and Erosion Control Project Manager for Eglin Air Force Base, FL in
providing Remote Automated Weather Station (RAWS) rainfall observations.
Emergency Management Agencies (EMA) for their reports on road conditions. Appreciation
goes to WKRG.com News 5 for photos and to all other media partners, weather spotters and public
for their weather reports and photos provided via social media outlets.