Storm Summary Number 1 for Southwest and Southern Plains Heavy
Rain...Corrected
NWS Weather Prediction Center College Park MD
1000 AM CDT Fri Sep 21 2018

Corrected for upgrade to High Risk of excessive rainfall.

...Heavy rain is occurring in parts of the Southern Plains...

Flood and Flash Flood Warnings, Watches, and Advisories are in
effect for portions of the Southern Plains and into Arkansas.

For a detailed graphical depiction of the latest watches, warnings
and advisories, please see www.weather.gov

At 900 PM CDT...Pacific moisture associated with former Tropical
Depression 19-E as well as moisture from the Gulf of Mexico
combined to create an impressive moisture plume making its way
into the Southern Plains. At the surface, a low pressure system
with a central pressure of 1009 mb or 29.80 inches was located
about 90 miles west of Abilene, Texas. From this low, a
slow-moving cold front stretched south and westward through West
Texas, while a stationary front extended through Oklahoma and
attached to a stronger cold front moving through the Midwest and
Middle Mississippi Valley. National Weather Service radars and
surface observations indicated that moderate to heavy rain and
thunderstorms were occurring throughout Oklahoma and portions of
Texas.

...Selected preliminary Storm Total Rainfall in inches from 700 AM
CDT Wed Sep 19 through 900 AM CDT Fri Sep 21...

...OKLAHOMA...
FITTSTOWN                             6.42                    
CENTRAHOMA                            4.21                    
WICHITA                               3.75                    
BESSIE                                3.51                    
TISHOMINGO                            2.28                    
ADA MUNI ARPT                         2.11                    
LAVERNE                               2.00                    

...TEXAS...
BIG LAKE 1 WNW                        3.64                    
GRAHAM 5 SSW (MACY RANCH)             3.53                    
COPE RANCH CO-OP                      3.50                    
QUITAQUE 3 NNW-CAPROCK CANYONS ST P   3.44                    
MERTZON 3 NNE                         3.23                    
PAINT CREEK                           2.80                    
TAHOKA                                2.75                    

...Selected preliminary Storm Total Rainfall in inches where the
event has ended...

...ARIZONA...
GREEN VALLEY 3.7 NE                   3.90                    
AMADO 1.65 N                          3.40                    
SAHUARITA 3.5 SW                      3.35                    
ALTAR WASH AT SR 286                  3.31                    
CIENEGA CREEK AT I-1                  2.91                    
ORO VALLEY 5.8 N                      2.32                    
VAIL 8.6 SSE                          2.29                    
BENDER SPRINGS                        2.05                    

...NEW MEXICO...
SUNSPOT 0.2 SSW                       3.09                    
TULAROSA 1.0 E                        2.86                    
SIERRA BLANCA                         2.80                    
LORDSBURG 10.1 WNW (ADOBE)            2.75                    
CLOUDCROFT 1.8 SW                     2.74                    
TRUTH OR CONSEQUENCES MUNI ARPT       2.52                    
RUIDOSO 2.9 SW                        2.30                    
LAS CRUCES 5.8 WNW                    2.13                    
ALBUQUERQUE 8 ESE                     1.40                    


The low pressure system and associated fronts are forecast to move
slowly southeastward through the Southern Plains over the next
couple of days. The slow movement will cause heavy rain to
continue over Texas and Oklahoma through Saturday, with widespread
rainfall totals of 4 to 6 inches, with locally higher amounts.
There is a HIGH RISK of excessive rainfall/flash flooding in the
Southern Plains through Friday night. As the moisture plume
spreads eastward, parts of the Lower Mississippi Valley are
expecting heavy rain of 2 to 4 inches, with locally higher
amounts, through the weekend.

The next storm summary will be issued by the Weather Prediction
Center at 400 PM CDT. Please refer to your local National Weather
Service office for additional information on this event.

Tate