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Storm system to bring potential for heavy rainfall, flooding, and severe thunderstorms

A slow moving low pressure system will bring the threat for heavy rainfall, flash flooding, and severe thunderstorms Sunday into Monday. The main threat areas include the Mid South, Southeast U.S, and the southern Mid Atlantic. Read More >

Observed Model Pressure Differences

Observation Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Sun Apr 23 13:10:01 GMT 2017

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 
2213     m     m     m     m     m     m     m     m     m     m     m     m     m 
2214   0.1  -0.7   1.3   3.4   2.2   3.6  -0.9   2.3   6.7   1.4   4.3   2.4   1.5 
2215  -0.1  -0.7   1.3   3.1   2.0   4.0  -0.9   2.7   7.0   1.5   4.7   2.9   1.8 
2216  -0.2  -0.9   1.1   3.2   2.0   3.7  -0.6   2.6   7.3   2.1   4.6   3.3   2.0 
2217  -0.4  -1.0   0.8   2.9   1.7   3.8  -0.8   3.0   7.2   2.1   4.8   3.2   2.4 
2218  -0.4  -0.8   0.7   2.7   1.2   3.9  -0.9   3.2   7.2   2.6   4.7   3.2   2.5 
2219  -0.2  -0.8   0.5   2.7   1.0   3.5  -0.9   3.0   6.7   2.2   4.3   2.8   2.6 
2220  -0.3  -0.7   0.3   2.1   0.8   3.2  -0.6   2.9   6.7   2.1   3.9   2.5   2.8 
2221   0.0  -0.4   0.3   1.9   0.6   3.1  -0.5   2.8   6.8   2.5   3.5   2.3   2.9 
2222   0.3  -0.1   0.4   1.5   0.6   3.1  -0.7   2.7   6.7   2.4   3.2   2.2   3.0 
2223   0.4   0.1   0.3   1.3   0.5   3.0  -0.4   2.7   6.5   2.2   2.9   2.0   3.2 
2300   0.4   0.6   0.1   1.2   0.4   3.1  -0.4   3.0   6.2   1.9   2.5   1.8   3.4 
2301   0.3   0.8   0.1   1.0   0.2   2.9  -0.5   2.8   6.5   1.8   2.1   1.5   3.3 
2302   0.7   1.1   0.2   1.0   0.3   2.9  -0.5   2.7   6.6   2.1   1.8   1.1   3.1 
2303   0.7   1.4   0.1   1.0   0.0   2.7  -0.8   2.6   6.5   2.1   1.3   0.7   2.8 
2304   1.3   1.6   0.1   1.1   0.1   2.3  -0.6   2.2   6.4   2.0   0.7   0.0   2.6 
2305   1.5   1.7  -0.2   1.2  -0.1   2.3  -0.4   2.5   6.5   2.1   0.6   0.1   2.7 
2306   1.8   2.0   0.1   0.8   0.1   2.7  -0.6   2.6   6.8   2.4   0.7   0.1   2.4 
2307   1.8   2.3   0.4   0.8   0.2   2.8  -0.5   2.4   6.9   2.7   0.5  -0.0   2.0 
2308   1.6   2.0   0.4   1.0   0.2   2.7   0.0   2.3   6.9   2.6   0.7   0.2   1.5 
2309   1.7   2.2   0.5   0.9   0.1   2.9   0.1   2.4   6.9   3.0   0.7   0.3   1.7 
2310   1.6   2.1   0.5   1.2   0.1   2.8   0.5   2.3   6.9   3.6   0.7   0.5   1.5 
2311   1.3   1.9   0.3   1.8   0.2   2.6   0.9   2.3   6.5   3.5   0.7   0.6   1.2 
2312   1.5   1.9   0.4   1.8   0.5   2.8   0.8   2.4   6.3   3.7   0.9   0.8   1.1 
2313   1.7   1.6   0.4   2.0   0.7   2.8   0.8   2.4   6.1   3.8   1.2   0.6   1.0 

 


Forecast Model Pressure Differences

 North American Mesoscale Model

Model Forecast Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Sun Apr 23 03:30:01 GMT 2017

     ETA242 Pressure Difference Forecast ( 20170423_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 
2300   1.0   0.1   0.4   1.0   1.3   0.9  -0.4   0.6   5.6   0.7   0.8   0.8   3.1
2303   1.2   0.5   0.4   1.0   1.6   1.2  -0.4   0.7   5.6   0.2   0.7   0.3   3.3
2306   1.7   1.2   0.5   1.1   1.0   2.2  -0.2   1.7   5.7   0.4   1.0  -1.0   3.5
2309   1.9   1.3   0.8   1.8   1.4   3.0   0.5   2.2   6.2   1.7   1.7   0.3   2.5
2312   2.2   1.0   1.3   2.5   2.1   3.4   0.6   2.1   5.2   2.2   2.4   1.6   1.7
2315   2.1   0.8   1.2   2.4   2.2   4.2   0.5   3.0   4.6   2.2   3.4   2.5   1.8
2318   1.8   0.3   0.7   2.0   1.7   3.2   0.4   2.5   4.1   2.0   2.9   2.2   1.6
2321   1.8   0.3   0.2   1.4   1.1   1.6   1.1   1.4   4.7   2.4   1.4   1.2   1.0
2400   1.8   0.3   0.2   1.3   1.1   0.8   1.6   0.6   5.2   2.4   0.4   0.3   0.2
2403   2.0   0.9   0.3   1.0   1.2   1.3   1.7   1.0   5.5   2.2   0.4  -0.0   0.0
2406   2.2   1.1   0.3   1.1   1.1   1.7   1.9   1.4   5.5   2.2   0.6  -0.2  -0.3
2409   2.6   1.1   0.8   1.3   1.5   2.4   1.6   1.6   5.2   2.1   1.3   0.3  -0.7
2412   2.3   1.5   1.4   2.0   2.1   3.2   1.6   1.8   4.6   1.6   1.7   0.9  -1.3
2415   2.5   2.0   1.7   2.1   2.4   4.0   1.3   2.3   4.2   1.5   2.0   1.3  -1.1
2418   2.7   2.2   1.1   2.0   1.9   3.6   1.5   2.4   4.1   1.8   1.3   1.5  -0.3
2421   2.8   2.6  -0.0   2.0   1.0   1.8   2.2   1.8   4.3   1.9  -0.8  -0.2   0.3
2500   2.6   2.8  -0.9   2.3   0.7   0.5   3.4   1.4   4.1   1.8  -2.3  -1.7   0.3
2503   2.6   2.9  -0.2   2.1   1.3   1.3   3.6   1.5   3.4   1.8  -1.6  -1.3  -0.4
2506   2.4   3.4   0.5   2.0   1.7   2.2   3.7   1.7   2.5   1.4  -1.2  -1.1  -0.7
2509   2.0   2.6   0.4   1.7   1.4   2.5   3.7   2.1   1.8   0.7  -0.1  -0.6  -0.7
2512   1.9   2.7   0.7   1.3   1.7   2.8   3.4   2.0   1.5   0.3   0.1   0.0  -1.0
2515   1.7   3.3   0.8   1.3   1.6   2.9   2.7   2.2   1.0   0.3  -0.4  -0.1  -0.9
2518   1.9   3.5   0.5   1.3   1.3   2.4   1.6   1.9   0.6   0.2  -1.2  -0.6  -0.2
2521   2.1   3.2  -0.2   1.5   0.9   1.5   1.7   1.7   0.7   0.5  -1.6  -1.0   0.2
2600   2.6   3.0   0.2   0.9   1.4   1.3   1.8   1.0   1.3   0.7  -1.7  -1.0   0.1
2603   2.5   2.5   0.3   0.5   1.6   1.0   2.1   0.8   1.4   1.0  -1.5  -1.2   0.4
2606   2.0   2.2   0.1   0.2   1.4   1.5   2.2   1.4   1.1   1.1  -0.7  -0.7   0.9
2609   1.5   2.4   0.2  -0.5   0.8   2.0   2.0   1.8   0.6   0.7  -0.4   0.1   0.8
2612   0.8   2.1  -0.5  -0.7  -0.2   1.6   2.4   2.1   0.7   0.7  -0.5   0.1   0.8