National Weather Service United States Department of Commerce

Fire Weather Concerns Persist Across the West; Below Normal Temperatures for the Midwest and East

As a cold front moves through the western states, gusty conditions will bring fire weather concerns through the weekend from the interior Northwest into the Great Basin and Rockies. Elsewhere, temperatures will run ten or more degrees below normal from the Upper Midwest into much of the eastern U.S. Tropical development may bring heavy rainfall to parts of the western Gulf Coast this weekend. Read More >

Observed Model Pressure Differences

Observation Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Fri Sep 18 21:10:01 GMT 2020

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 
1722   5.2   9.4   1.2   1.2   2.1   4.8   6.8   3.6   8.5   7.8  -4.6  -5.6  -6.1 
1723   5.2   9.9   1.5     m   1.7   5.8   6.4   4.3     m   6.8  -4.1  -4.7  -5.9 
1800   5.4     m   1.5  -0.2   1.5   5.7   6.7   4.2   6.8   5.5     m  -4.6  -5.8 
1801   5.7   9.8   1.2  -0.3   1.0   5.4     m   4.2   5.8   5.3  -4.4  -4.7  -5.4 
1802   4.8     m   0.7  -0.5   0.9   5.3   6.9   4.6   4.8   4.7     m  -5.3  -5.3 
1803   4.5     m   0.1     m   0.5   5.1     m   5.0     m   4.4     m  -5.1  -5.5 
1804   4.4   8.8   0.5  -0.6   0.6   5.7   5.7   5.2     m     m  -3.1  -5.0  -5.8 
1805   4.8   8.8   0.5  -1.0   0.2   4.9   6.3   4.4     m     m  -3.9  -5.4  -5.5 
1806   4.7   9.7   0.9  -1.4   0.3   5.4   5.5   4.5   1.7   4.5  -4.3  -5.3  -6.0 
1807   4.6   9.7   0.6  -1.6   0.0   4.9   6.0   4.3   1.4   4.0  -4.8  -5.8  -6.5 
1808   4.4   9.8   1.2  -2.0   0.8   5.3   6.2   4.1     m     m  -4.5  -5.5  -6.9 
1809   4.3   9.2   1.0  -2.2   0.6   4.6   6.4   3.6   0.9   3.5  -4.6  -5.7  -6.4 
1810   3.9   8.8   0.9  -2.3   0.5   3.7   6.8   2.8   0.6   3.1  -5.1  -5.7  -5.5 
1811   3.1   7.9   0.3  -2.1   0.0   3.8     m   3.5   0.1   2.7  -4.1  -4.7  -5.5 
1812   2.6   6.6  -0.1  -2.2  -0.3   3.6   7.2   3.7   0.2   2.6  -3.0  -4.3  -5.4 
1813   3.1     m   0.1  -2.5  -0.3   3.4   6.5   3.3     m     m     m  -4.9  -5.6 
1814   2.9   6.4   0.0     m  -0.6   3.1   5.9   3.1     m   1.8  -3.3  -4.8  -5.9 
1815   2.6   5.8  -0.4     m  -0.7   3.0   5.2   3.4     m   2.0  -2.8  -4.1  -5.5 
1816   2.6   5.2  -0.4     m  -0.9   2.6   4.5   3.0     m   2.5  -2.6  -4.1  -5.2 
1817   2.6   4.7  -0.3     m  -0.8   2.5   3.9   2.8     m   2.3  -2.2  -3.8  -4.7 
1818   2.5   4.3  -0.4     m  -0.7   2.1   3.9   2.5     m   2.3  -2.2  -4.0  -4.4 
1819   2.3   4.2  -0.6     m  -0.8   1.9   3.7   2.5     m   2.1  -2.3  -4.0  -3.5 
1820   2.2   3.9  -0.7     m  -1.0   1.5   3.7   2.2     m     m  -2.4  -4.1  -2.9 
1821   2.1     m  -0.8     m  -1.1   1.3   3.8   2.1     m   2.2     m  -4.3  -2.6 

 


Forecast Model Pressure Differences

 North American Mesoscale Model

Model Forecast Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Fri Sep 18 15:30:01 GMT 2020

     ETA242 Pressure Difference Forecast ( 20200918_1200  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 
1812   1.4   6.2  -0.8  -1.5  -0.3   3.4   7.5   4.2  -1.2   1.7  -2.8  -1.9  -4.7
1815   0.5   4.4  -1.1  -2.3  -0.8   2.3   6.9   3.4  -1.0   1.6  -2.1  -0.9  -5.0
1818   0.7   2.8  -1.2  -2.3  -1.0   1.4   5.4   2.6  -0.9   1.7  -1.4  -0.7  -3.8
1821   0.6   2.5  -1.0  -2.4  -1.1   0.2   4.9   1.2  -0.3   1.4  -2.3  -0.7  -3.9
1900   0.9   3.0  -1.0  -2.3  -1.1  -0.4   4.9   0.7   0.4   1.4  -3.3  -1.6  -3.7
1903   1.7   3.5  -0.8  -1.7  -0.7  -0.3   5.0   0.5   0.6   1.3  -3.8  -2.9  -3.5
1906   1.5   3.2  -1.1  -1.1  -0.6   0.4   4.8   1.5   0.2   1.0  -2.7  -2.0  -3.6
1909   1.3   2.5  -0.7  -0.6  -0.1   1.0   4.3   1.7  -0.1   0.6  -1.6  -1.3  -3.1
1912   1.1   2.2  -0.3  -0.6   0.0   1.2   3.4   1.6  -0.3  -0.2  -1.0  -0.7  -2.6
1915   0.9   2.1  -0.1  -0.3   0.1   1.6   3.2   1.7  -0.2  -0.8  -0.6  -0.3  -2.2
1918   0.8   2.5  -0.1  -0.2   0.0   1.1   3.1   1.3  -0.6  -1.5  -1.3  -0.6  -2.1
1921   1.0   2.0  -0.0  -0.0   0.2   0.1   2.4   0.1  -0.9  -1.8  -2.0  -1.5  -2.1
2000   1.4   2.1  -0.1  -0.4   0.0  -0.2   1.7  -0.1  -1.3  -1.7  -2.3  -1.8  -2.1
2003   1.0   1.7  -0.0  -0.2   0.2  -0.0   1.3  -0.0  -1.4  -0.8  -1.8  -1.6  -2.3
2006   0.8   1.3   0.2  -0.3   0.3   0.6   0.9   0.4  -1.7  -0.5  -0.7  -0.9  -2.3
2009   0.3   0.4   0.3  -0.2   0.4   0.9   0.2   0.5  -1.9  -0.8   0.5   0.2  -1.9
2012   0.0  -0.1   0.4  -0.3   0.4   0.9  -0.5   0.4  -1.9  -0.5   1.0   0.8  -1.2
2015   0.5   0.0   0.4  -0.6   0.2   0.7  -0.6   0.4  -1.1   0.3   0.7   0.3  -0.5
2018   0.3  -0.2   0.1  -0.4  -0.0   0.4  -0.7   0.2  -0.4   0.9   0.5   0.1   0.4
2021   0.3  -0.5  -0.2  -0.4  -0.3  -0.7  -0.6  -0.5   0.6   1.4  -0.2  -0.1   0.7
2100   0.0  -0.7  -0.5  -0.3  -0.5  -1.4  -0.2  -0.9   2.4   2.6  -0.6  -0.5   0.6
2103   0.1  -0.5  -0.3  -0.2  -0.2  -1.1  -0.2  -0.8   3.9   3.1  -0.6  -1.7   0.6
2106   0.1  -0.7   0.2   0.3   0.4  -0.6  -0.2  -0.7   5.2   4.0   0.1  -1.0   0.1
2109   0.1  -0.5   0.4   0.8   0.8  -0.1  -0.1  -0.5   6.5   3.7   0.4  -0.2  -0.2
2112   0.2   0.7   0.7   1.3   1.2   0.4   0.1  -0.3   7.5   2.4  -0.3   0.1  -0.3
2115   0.7   2.1   0.9   2.2   1.5   0.8   0.1  -0.1   8.0   2.0  -1.3  -0.1  -0.3
2118   1.7   3.1   1.2   2.8   1.9   1.3  -0.2   0.1   8.2  -0.2  -1.8  -1.3  -0.2
2121   1.9   3.5   0.9   4.0   2.0   1.5   0.0   0.6   7.8  -0.0  -2.0  -1.7   0.1
2200   1.9   4.1   1.6   5.0   3.3   2.3  -0.2   0.6   6.9  -0.7  -1.9  -1.4  -0.4