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Scattered Severe Thunderstorms and Developing Flooding Risk in the Central U.S.; Fire Weather in the West

Scattered severe thunderstorms are expected across portions of the central and southern High Plains this weekend. Elevated to critical fire weather conditions are forecast across parts of the Western U.S. from today into Monday. Heavy rainfall is forecast from the western Gulf Coast into the Midwest from this weekend into much of next week. Read More >

Observed Model Pressure Differences

Observation Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Sat May 15 11:10:01 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 
1412   2.7   3.3   0.2  -0.8  -1.0   1.2   0.5   1.0   5.3   3.5  -2.1  -4.0  -0.4 
1413   2.4     m   0.6  -0.4  -0.2   1.9   0.6   1.3   5.2     m     m  -3.2  -0.7 
1414   2.0   2.6   0.7  -0.2   0.0   1.4   0.9   0.7   5.3   3.5  -1.2  -3.5  -0.8 
1415   1.7   2.4   0.5   0.0   0.0   1.4   1.1   0.9   6.2   3.9  -1.0  -3.2  -0.9 
1416   1.9   2.6   0.6   0.1   0.1   1.4   1.0   0.8   6.0   3.8  -1.2  -3.3  -1.0 
1417   1.8   2.7   0.2   0.2  -0.1   1.5   1.4   1.3   6.1     m  -1.2  -3.0  -0.8 
1418   2.2   2.8   0.1   0.6  -0.3   1.5   1.6   1.4   5.8     m  -1.3  -3.2  -1.0 
1419   2.3   3.0  -0.1   0.4  -0.1   1.4   1.9   1.5   5.8   3.5  -1.6  -3.6  -1.1 
1420   2.3   3.1  -0.1   0.5   0.2   1.6   2.1   1.7   5.3   3.2  -1.5  -4.0  -1.2 
1421   2.8   3.7   0.0   0.2   0.0   1.5   2.1   1.5   5.2   3.2  -2.2  -4.2  -1.5 
1422   3.0   4.1  -0.2   0.1   0.0   1.3   2.6   1.5   5.2   3.1  -2.8  -4.5  -1.5 
1423   3.5   4.5  -0.3  -0.1  -0.1   1.4   2.7   1.7   5.0   2.8  -3.1  -4.9  -1.5 
1500   3.5   4.9  -0.6  -0.2  -0.4   1.3   3.1   1.9   4.3   2.2  -3.6  -4.9  -1.6 
1501   3.4     m  -1.0   0.1  -1.0   1.6   3.5   2.6   3.7   1.9     m  -4.5  -1.3 
1502   3.3     m  -1.1   0.4  -0.8   0.8   4.0   1.9     m     m     m  -5.1  -1.5 
1503   3.7   5.0  -0.7   0.0  -0.6   1.2   4.0   1.9   2.8     m  -3.8  -5.1  -1.6 
1504   3.8   5.2  -0.4  -0.5  -0.6   1.3   3.5   1.7   2.9     m  -3.9  -5.2  -1.8 
1505   3.8   5.0   0.0  -0.7  -0.4   1.7   3.0   1.7   2.6   2.0  -3.3  -4.9  -2.3 
1506   3.4   4.3   0.1  -0.5   0.0   1.4   3.1   1.3   2.3   1.8  -2.9     m  -2.5 
1507   2.9   4.0   0.0  -0.3  -0.4   1.0     m   1.0   2.0   1.9  -3.0  -4.7  -2.8 
1508   2.9   3.6   0.4  -0.7  -0.5   1.3   3.3   0.9   2.0   2.1  -2.3  -4.3  -3.1 
1509   2.5   2.9   0.6  -0.8  -0.2   1.3   3.2   0.7   2.0   2.2  -1.6  -3.9  -3.3 
1510   1.6   1.9   0.3  -0.4   0.0   0.5   3.2   0.2   1.8   1.9  -1.4  -3.6  -3.6 
1511   1.1   1.2   0.4  -0.3   0.0   0.2   3.1  -0.2   1.2   1.7  -1.0  -3.2  -3.4 

 


Forecast Model Pressure Differences

 North American Mesoscale Model

Model Forecast Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Sat May 15 03:30:01 GMT 2021

     ETA242 Pressure Difference Forecast ( 20210515_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 
1500   3.0   3.9  -1.9   0.9  -0.0  -0.5   3.6   1.4   2.7   0.9  -4.4  -3.5  -0.7
1503   2.4   3.2  -1.8   1.6   0.1  -0.8   4.9   1.0   1.0  -0.1  -4.0  -4.0  -1.6
1506   1.9   2.6  -1.1   1.8   0.6  -0.6   5.2   0.5   1.1   0.7  -3.2  -3.7  -2.8
1509   1.5   1.3   0.0   1.3   1.3   0.4   4.0   0.4   0.6   0.7  -0.8  -1.4  -3.8
1512   1.3   0.2   0.5   0.6   1.4   0.6   2.3   0.1  -0.4   0.4   0.4  -0.4  -3.7
1515   0.9  -0.2   0.4   0.2   0.9   0.5   1.4   0.1  -1.1   0.2   0.7   0.4  -3.2
1518   0.7   0.1  -0.3  -0.3  -0.2  -0.1   1.0   0.2  -1.4   0.1  -0.2   0.1  -2.2
1521   0.8   1.1  -1.3  -1.0  -1.2  -0.8   1.5   0.5  -0.8  -0.1  -1.9  -0.5  -1.8
1600   1.5   1.8  -2.1  -1.3  -2.2  -1.6   2.3   0.5  -0.5   0.6  -3.4  -2.2  -2.0
1603   1.9   2.0  -2.3  -1.3  -2.5  -1.6   3.0   0.7  -0.4   0.5  -3.6  -2.7  -2.6
1606   1.7   1.9  -1.8  -1.0  -2.1  -0.3   3.6   1.4  -0.6   0.2  -2.2  -2.0  -3.9
1609   1.3   2.1  -0.8  -0.6  -1.0   0.6   2.4   1.4  -1.1  -0.2  -1.5  -1.0  -4.7
1612   0.9   2.6  -0.5  -0.2  -0.7   1.1   3.3   1.5  -1.5  -0.4  -1.5  -0.6  -4.9
1615   0.9   2.7  -0.2   0.3  -0.2   0.7   3.8   0.9  -1.8  -0.6  -2.0  -1.5  -5.0
1618   1.1   2.6  -0.6   0.4  -0.5  -0.7   4.4  -0.1  -1.7  -0.9  -3.3  -2.4  -4.8
1621   1.8   2.7  -0.9  -0.2  -1.0  -2.0   4.3  -1.1  -1.6  -0.8  -4.7  -4.1  -4.7
1700   2.1   2.7  -1.5  -0.7  -1.7  -3.1   4.3  -1.6  -1.1  -0.7  -5.7  -4.6  -4.3
1703   2.2   2.5  -1.7  -1.1  -2.2  -3.4   4.1  -1.7  -0.7  -0.5  -6.0  -5.3  -4.0
1706   1.9   1.9  -1.5  -0.9  -1.8  -3.8   3.8  -2.3  -0.6  -0.4  -5.7  -5.6  -4.3
1709   1.1   0.8  -1.0  -0.4  -1.0  -3.5   3.0  -2.5  -0.9  -0.8  -4.3  -4.7  -4.3
1712   0.5  -0.0  -0.6  -0.3  -0.5  -2.9   2.1  -2.3  -1.5  -1.4  -2.9  -2.8  -4.7
1715  -0.2  -0.6  -0.3  -0.2   0.1  -2.9   1.3  -2.6  -2.3  -2.0  -2.3  -1.7  -4.5
1718  -0.8  -1.4  -0.2  -0.3   0.0  -3.7   0.9  -3.5  -2.6  -1.9  -2.3  -0.7  -4.1
1721  -1.6  -2.0  -0.3  -0.2  -0.1  -5.1   1.0  -4.8  -3.1  -2.4  -3.1  -1.5  -3.8
1800  -2.0  -2.1  -1.1  -0.2  -0.8  -6.6   1.4  -5.4  -3.2  -2.8  -4.4  -2.8  -3.2
1803  -1.5  -1.5  -1.4  -0.4  -1.2  -6.9   1.4  -5.4  -3.3  -2.8  -5.4  -3.9  -2.6
1806  -1.0  -0.8  -1.1  -0.4  -1.0  -6.4   1.2  -5.3  -3.2  -2.4  -5.5  -4.5  -2.2
1809  -0.6  -0.5  -0.5  -0.0  -0.4  -5.0   0.7  -4.5  -3.6  -2.4  -4.5  -3.8  -2.1
1812  -0.3  -0.4  -0.2   0.4  -0.0  -3.6   0.3  -3.4  -3.8  -2.4  -3.1  -2.4  -1.5