Storm Summary Number 2 for Central U.S. Heavy Rain and Rockies Snow
NWS Weather Prediction Center College Park MD
1000 AM CDT Tue May 21 2019

...Heavy rain and flash flooding are ongoing in the central U.S.,
as snow occurs in the Rockies...

Flash Flood and Flood Warnings, Watches, and Advisories are
widespread across the Central Plains and the Middle Mississippi
Valley.

Winter Storm Warnings and Winter Weather Advisories are in effect
for higher elevations of the Rockies and into parts of the
Northern High Plains.

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

At 900 AM CDT...A surface low pressure system with a central
pressure of 993 mb, or 29.32 inches of mercury, was located in
southwest Oklahoma. The low was occluded with a cold front
extending southward through central Texas, and National Weather
Service radars and surface observations indicated that a squall
line was located along this front. In addition, a warm front
extended eastward from the triple point across eastern Oklahoma,
northern Arkansas, and into the Tennessee Valley. Heavy rain and
thunderstorms were ongoing north of the warm front with the squall
line extending through eastern Oklahoma and Kansas, in addition to
widespread rain across the Central Plains. Farther west, a deep
upper-level trough centered over the Rockies was helping cause
temperatures that were cold enough for snow in parts of the
Rockies and into the Central High Plains.

...Selected preliminary Storm Total Snowfall in inches from 700 AM
CDT Mon May 20 through 900 AM CDT Tue May 21...

...COLORADO...
BLACK FOREST 3 NW                    19.5                    
MONUMENT 2 NNE                       14.0                    
PEYTON 4 N                           14.0                    
KIOWA                                13.0                    
COLORADO SPRINGS 5 NNE               12.5                    
GUANELLA PASS 5 WSW                  12.0                    
PALMER LAKE 2 S                      12.0                    
ALMA 3 WNW                           11.0                    
PLACERVILLE 9 NE                     10.8                    
FALCON 4 WSW                          9.0                    
PETERSON AFB 4 NW                     9.0                    
SILVERTON                             8.4                    
CASTLE ROCK 2 SE                      8.0                    
CRIPPLE CREEK 7 NW                    7.0                    
DENVER 3 E                            3.7                    
BOULDER 1 ENE                         2.9                    

...WYOMING...
WARREN AFB 1 ESE                     10.2                    
CHEYENNE 2 ENE                        9.0                    
BUFORD 3 ESE                          8.2                    
SOUTH GREELY HIGH 3 S                 8.0                    
LA GRANGE 4 ESE                       7.5                    
CARPENTER                             7.0                    
HARRISBURG 9 SW                       6.8                    
BURNS 9 WSW                           6.5                    
FORT LARAMIE 4 SW                     6.2                    
PINE BLUFFS 1 SE                      6.0                    

...Selected preliminary Storm Total Rainfall in inches from 700 AM
CDT Mon May 20 through 900 AM CDT Tue May 21...

...ARKANSAS...
PEA RIDGE 0.2 WSW                     2.12                    
GRAVETTE 4.2 W                        2.00                    

...KANSAS...
WINFIELD 7.9 W                        7.00                    
DEXTER 0.1 NW                         6.73                    
ROSE HILL 2.7 ESE                     6.68                    
ARKANSAS CITY 1.7 NNW                 6.64                    
CLIMAX 0.8 ENE                        6.62                    
EUREKA 0.9 NW                         6.37                    
INDEPENDENCE 0.3 NW                   6.30                    
UDALL 4.2 ENE                         6.11                    
LATHAM 0.2 W                          5.94                    
AUGUSTA 1 S                           5.17                    
EL DORADO 1.2 S                       5.08                    
HALSTEAD 4.1 WNW                      5.05                    
WICHITA 6.3 ENE                       4.05                    

...MISSOURI...
CARL JUNCTION 3.4 WSW                 4.59                    
LAMAR 0.3 ESE                         4.45                    
JOPLIN RGNL ARPT                      4.41                    
DUNNEGAN 2.4 NNW                      4.21                    
STOCKTON 5.6 S                        4.19                    
UMBER VIEW HEIGHTS 0.1 WSW            4.11                    
NEVADA 0.2 W                          4.06                    
EL DORADO SPRINGS 0.6 NNW             3.91                    
BOLIVAR 9 N                           3.60                    
FAIR PLAY 1.3 E                       3.42                    
MONETT 1.8 N                          3.42                    
SPRINGFIELD 4.9 SE                    3.12                    

...OKLAHOMA...
PAWNEE                                8.36                    
SKIATOOK                              8.17                    
WYNONA                                7.66                    
GLENCOE 3 W                           7.32                    
OCHELATA 5.6 N                        7.28                    
BILLINGS 4.1 SSE                      7.18                    
OILTON                                7.15                    
TALALA                                7.15                    
STILLWATER                            7.08                    
INOLA                                 7.06                    
NEWKIRK 0.3 W                         6.89                    
YALE 0.4 E                            6.88                    
PAWHUSKA 9.4 ENE                      6.84                    
BROKEN ARROW 3 NNW                    6.65                    
TULSA 12.2 SE                         6.61                    

...TEXAS...
ELLIOT 0.3 WNW                        3.61                    
STANTON 9.9 SW                        3.29                    
ASPERMONT                             3.17                    
ROTAN                                 2.71                    
CROWELL                               2.64                    

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

...NEW MEXICO...
TERERRO 6 WNW                         7.0                    
TOADLENA 5 SSW                        7.0                    
ARROYO SECO 8 NE                      6.0                    
CANON PLAZA 11 NNW                    6.0                    
LLANO LARGO 5 SSE                     5.0                    
CUBA 9 E                              4.0                    


The low pressure system is forecast to move northeastward on
Tuesday, and the cold front will move eastward with it, sweeping
out the moisture from the Southern Plains on Tuesday afternoon.
Through Tuesday, ongoing flooding and flash flooding will
continue, especially across eastern Oklahoma and eastern Kansas. A
widespread area of 1-3 inches of rain, with locally greater
amounts, is forecast for much of the Central Plains and middle
Mississippi Valley on Tuesday. Therefore, a Moderate Risk of
excessive rainfall/flash flooding is in place on Tuesday for
eastern Oklahoma and Kansas, as well as northwestern Arkansas and
western Missouri. Severe weather is also a threat. Meanwhile, snow
up to 1 foot is forecast for higher elevations of the Rockies,
Bighorn Mountains, Wind River Mountains/Tetons, and the Black
Hills over the next couple of days. Some snow could also spread
into the Northern and Central High Plains through Tuesday night.

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.

Hammond