National Weather Service United States Department of Commerce

Storms in the Central U.S.; Active Weather Pattern to Approach the West

A few strong to severe storms with gusty winds and hail will be possible across parts of the Midwest on Wednesday. An approaching storm may produce showers with areas of gusty winds and heavy mountain snow on the West Coast. Read More >

Observed Model Pressure Differences

Observation Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Wed Oct 20 04:10:01 GMT 2021

Time  PAWR- PACV- PATK- PANC- PATK- PAGK- PANC- PAGK- PAHO- PADQ- PAGK- PAGK- PANN-
      PANC  PANC  PANC  PAHO  PAEN  PANC  PAMC  PATK  PAKN  PAKN  PACV  PAVD  PATK 
1905  -0.2   0.1   1.0   1.9   1.3   5.9  -0.2   4.9   0.2     m   5.8   3.1  -0.1 
1906   0.2  -0.1   1.3   1.8   1.7   6.0   0.0   4.7   0.6     m   6.1   3.0  -0.3 
1907   0.2  -0.3   1.6   1.7   1.8   6.2   0.0   4.6   0.6     m   6.5   3.0  -0.5 
1908  -0.2  -0.9   1.5   2.2   2.0   6.5   0.0   5.0   0.4     m   7.4   3.5   0.0 
1909   0.2  -0.7   1.7   2.1   2.3   6.5   0.0   4.8   0.0     m   7.2   3.8   0.1 
1910  -0.8  -1.2   1.8   2.0   2.2   6.9  -0.3   5.1   0.0     m   8.1   4.5   0.6 
1911  -0.3  -0.3   1.4   1.9   2.1   6.7  -0.4   5.3   0.2     m   7.0   4.6   1.5 
1912  -0.9   0.0   1.2   2.1   1.6   6.1  -0.5   4.9   0.3     m   6.1   3.5   2.0 
1913  -0.3   0.0   1.0   1.8   1.5   7.0  -0.6   6.0   0.6     m   7.0   3.7   2.3 
1914  -0.1   0.0   0.5   2.3   1.3   7.0  -0.5   6.5   0.5     m   7.0   3.3   2.9 
1915   0.4   0.4   1.2   1.8   1.4   7.7  -0.9   6.5   1.1     m   7.3   3.5   2.0 
1916  -0.6   0.9   1.0   2.1   1.3   7.5  -0.8   6.5   1.1     m   6.6   3.2   2.3 
1917  -1.0   1.4   2.0   2.4   2.3     m  -1.4     m   0.6     m     m     m   1.9 
1918  -0.3   2.5   2.7   2.0   3.2   9.0     m   6.3   0.5     m   6.5   3.7   1.7 
1919   0.3   4.3   3.1   1.5   3.2   9.9  -3.1   6.8  -0.1     m   5.6   3.6   2.2 
1920   0.3   4.6   2.3   1.6   3.0   9.6  -3.0   7.3  -0.3     m   5.0   2.6   2.6 
1921   0.3   5.0     m   1.4     m  10.0  -3.2     m  -0.2     m   5.0   3.0     m 
1922   0.6   5.5   1.3   1.2   2.3   9.1  -3.1   7.8  -0.1     m   3.6   2.2   3.2 
1923   0.8   6.6   0.9   0.9   1.7   8.8  -3.0   7.9  -0.2     m   2.2   1.5   3.3 
2000   0.9   7.3   1.1   0.5   1.7   8.6     m   7.5  -0.2     m   1.3   0.4   3.4 
2001   1.3   7.6   1.4   0.2   1.9   9.0     m   7.6  -0.1   1.0   1.4   0.6   2.5 
2002   1.3   8.3   1.5  -0.1   1.8   9.1     m   7.6   0.1   1.1   0.8   0.0     m 
2003   1.6   8.7   1.8  -0.5   2.0   9.2     m   7.4   0.3   1.0   0.5  -0.5   1.5 
2004   1.3   8.7   1.6  -1.1   1.4   8.7     m   7.1   0.7   0.9   0.0  -1.0   1.3 

 


Forecast Model Pressure Differences

 North American Mesoscale Model

Model Forecast Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Wed Oct 20 03:30:02 GMT 2021

     ETA242 Pressure Difference Forecast ( 20211020_0000  UTC)
DDHH  PAWR- PACV- PATK- PANC- PATK- PAGK- PANC- PAGK- PAHO- PADQ- PAGK- PAGK- PANN-
      PANC  PANC  PANC  PAHO  PAEN  PANC  PAMC  PATK  PAKN  PAKN  PACV  PAVD  PATK 
2000  -0.2   6.0   0.2   1.8   0.7   8.0  -2.6   7.8  -2.0   0.8   2.0   3.2   5.4
2003   0.7   7.4   2.4   0.8   3.3   8.4  -3.3   6.0  -1.5   0.7   1.0   1.4   2.7
2006   3.4   9.5   3.4  -2.0   2.6   8.5  -3.0   5.1  -0.8  -0.1  -1.0  -0.7   1.7
2009   2.3   6.0   0.9  -0.7   0.8   6.0  -0.6   5.1  -0.4  -1.6  -0.0   0.0   1.4
2012   1.3   3.2   0.9   0.3   1.0   4.4   0.1   3.5  -0.9  -2.6   1.2   0.7  -0.6
2015   0.8   1.5   0.9   1.1   1.3   3.6   0.4   2.7  -1.7  -3.1   2.1   2.0  -0.9
2018   1.0   0.7   1.3   0.8   1.4   3.0  -0.9   1.7  -3.0  -3.7   2.4   2.1   0.0
2021   0.7  -1.2   0.9   0.6   0.9   1.5  -1.8   0.6  -3.8  -3.6   2.7   2.2   1.8
2100   0.2  -1.7   0.2  -0.1  -0.1   1.8  -2.7   1.5  -3.9  -2.5   3.4   3.0   2.4
2103  -0.4  -3.1  -0.3  -0.3  -0.5   1.5  -2.6   1.8  -3.5  -1.4   4.7   2.7   2.5
2106  -1.1  -3.6  -0.1  -0.6  -0.5   0.6  -3.1   0.7  -4.0  -1.5   4.1   2.3   2.3
2109  -1.2  -3.1  -0.4  -0.9  -0.6   0.8  -3.2   1.1  -4.2  -1.6   3.9   2.4   2.0
2112  -0.8  -0.9  -0.6  -1.0  -0.6   0.4  -2.5   1.0  -3.2  -0.3   1.3   1.3   2.2
2115   0.2   1.0  -0.5  -0.9  -0.3   0.6  -1.0   1.1  -1.0   1.3  -0.4  -0.0   1.3
2118   1.5   2.1   0.2  -0.7   0.4   1.3  -0.1   1.1   1.8   3.0  -0.7  -0.1   0.5
2121   1.5   3.9   0.4  -0.7   0.2   1.6   1.4   1.2   5.7   5.3  -2.3  -1.3   0.2
2200   1.5   4.3   0.6   0.2   0.5   2.3   2.7   1.7   9.1   7.2  -2.0  -1.2   0.0
2203   1.9   3.5   0.5   1.8   1.0   3.5   4.0   3.0  11.9   8.8   0.1   0.1  -0.1
2206   1.8   2.6   1.3   3.1   2.4   3.6   3.5   2.3  12.7   8.7   1.0   1.0  -0.6
2209   0.8   1.6   2.3   3.5   3.9   4.6   2.0   2.3  12.6   7.5   3.0   1.3  -0.5
2212   1.0   0.6   2.3   3.8   4.0   5.1  -0.6   2.8  11.3   6.5   4.5   1.6   2.0
2215   1.1  -0.1   2.1   3.8   3.7   5.2  -2.1   3.1   9.7   5.0   5.3   3.8   3.7
2218   0.6  -0.8   1.3   3.5   2.6   5.4  -3.2   4.1   7.7   3.6   6.2   3.4   5.5
2221  -0.1  -0.7   1.2   3.2   1.9   5.5  -4.7   4.3   5.2   2.2   6.2   4.1   6.6
2300   0.1   0.2   1.7   3.1   2.5   5.5  -5.9   3.9   2.1   0.2   5.3   3.3   6.8
2303   0.8   0.5   1.3   4.0   2.3   5.4  -6.2   4.1  -1.2  -1.8   4.9   2.4   6.4
2306   0.6   1.2   1.4   3.8   2.6   5.1  -6.1   3.7  -2.9  -3.3   3.9   1.6   5.7
2309   1.1   1.6   1.6   3.0   2.5   6.0  -5.8   4.4  -2.5  -3.1   4.3   2.5   5.3
2312   1.2   1.9   1.1   2.9   2.3   5.7  -4.8   4.7  -2.5  -2.8   3.9   3.3   4.8