Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >
Observation Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Sun Aug 17 09:10:01 GMT 2025
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
1610 -4.3 -8.7 1.2 -1.1 0.3 -0.2 -9.7 -1.4 -8.5 -7.6 8.5 3.7 5.9
1611 -4.2 -8.5 1.5 -1.4 0.3 -0.1 -9.8 -1.6 -8.4 -7.7 8.4 4.1 5.7
1612 -4.0 -8.4 1.4 -1.2 0.4 -0.5 -9.9 -1.9 -8.5 -8.0 7.9 3.3 5.8
1613 -4.2 -8.2 1.6 -1.2 0.7 -0.3 -10.3 -1.9 -8.6 -7.9 7.9 3.4 5.7
1614 -3.9 -8.1 1.8 -1.3 0.7 -0.4 -10.6 -2.2 -8.6 -8.0 7.7 2.9 5.8
1615 -3.8 -7.7 1.7 -1.2 0.6 -0.5 -10.7 -2.2 -8.5 -8.0 7.2 2.7 5.9
1616 -3.6 -7.4 1.8 -1.5 0.5 -0.4 -11.0 -2.2 -8.5 -8.2 7.0 2.6 6.2
1617 -3.6 -7.7 1.6 -1.4 0.5 -0.5 -11.0 -2.1 -8.4 -8.3 7.2 2.3 6.5
1618 -3.5 -7.3 1.4 -1.2 0.2 -0.4 -11.2 -1.8 -8.6 -9.1 6.9 2.4 6.9
1619 -3.3 -6.8 1.4 -1.2 0.2 -0.2 -11.5 -1.6 -8.6 -8.4 6.6 2.5 7.3
1620 -3.3 -6.5 1.0 -1.0 0.1 -0.2 -11.1 -1.2 -8.5 -8.2 6.3 2.7 m
1621 -3.0 -6.1 1.1 -1.0 0.1 -0.1 -11.0 -1.2 -8.2 -7.7 6.0 2.3 7.9
1622 -2.8 -5.4 1.5 -1.1 0.2 0.5 -11.1 -1.0 -8.0 -7.4 5.9 2.3 7.7
1623 -2.3 -5.1 1.9 -1.1 0.6 0.8 -11.1 -1.1 -7.7 -7.3 5.9 2.0 7.5
1700 -2.2 -4.6 2.4 -1.2 1.0 0.8 -11.0 -1.6 -7.6 -6.9 5.4 1.5 7.1
1701 -1.7 -4.3 2.6 -1.3 1.4 1.2 -11.0 -1.4 -7.3 -6.6 5.5 1.6 7.1
1702 -1.7 -4.1 2.6 -1.3 1.3 1.2 -10.8 -1.4 -7.0 -6.0 5.3 1.5 7.1
1703 -2.0 -4.2 2.4 -1.1 1.4 0.9 -10.2 -1.5 -6.7 -6.1 5.1 1.2 6.9
1704 -1.9 -4.1 2.2 -1.0 1.0 1.0 -10.1 -1.2 -6.8 -6.1 5.1 m 7.1
1705 -2.3 -4.2 2.0 -0.9 0.9 1.2 -9.6 -0.8 -6.4 -5.8 5.4 1.5 6.8
1706 -2.5 -4.4 1.7 -0.7 0.8 1.4 -9.2 -0.3 -6.6 -6.0 5.8 1.7 6.7
1707 -2.6 -4.4 1.6 -0.8 0.7 1.6 -9.1 0.0 -6.4 -6.1 6.0 2.2 6.4
1708 -2.4 -4.3 1.6 -0.7 0.6 2.1 -9.2 0.5 -6.6 -6.2 6.4 2.5 6.3
1709 m -3.9 1.7 -0.8 0.6 2.7 -9.3 1.0 -6.7 -6.4 6.6 2.9 6.0
North American Mesoscale Model
Model Forecast Pressure Gradient Table
National Weather Service, Anchorage AK Forecast Office
Sun Aug 17 03:30:01 GMT 2025
(' ', 'ETA242', 'Pressure Difference Forecast (', '20250817_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
1700 -1.6 -4.8 2.0 -0.1 1.0 -0.1 -10.5 -2.0 -9.2 -7.2 4.7 2.5 6.9
1703 -1.8 -4.0 3.6 -0.4 2.7 -0.5 -9.2 -4.1 -8.0 -6.1 3.5 0.7 4.8
1706 -1.1 -4.5 2.7 -0.3 1.6 -0.2 -8.0 -2.9 -7.1 -5.6 4.3 1.3 4.6
1709 -0.6 -4.3 2.3 -0.5 1.2 0.4 -7.8 -1.9 -7.3 -5.9 4.7 1.8 4.2
1712 -0.6 -4.6 1.5 -0.3 0.6 0.5 -7.3 -1.1 -6.9 -5.7 5.0 2.0 4.3
1715 -0.4 -4.4 0.7 0.3 0.1 0.3 -6.1 -0.4 -6.6 -5.5 4.8 2.0 4.2
1718 -0.8 -4.2 -0.4 0.5 -0.9 0.3 -5.6 0.6 -6.4 -5.3 4.4 2.8 4.7
1721 -1.4 -3.6 -1.2 0.7 -1.4 -0.7 -4.7 0.5 -5.6 -4.3 2.9 2.0 4.7
1800 -1.2 -2.5 -1.4 0.5 -1.5 -0.9 -3.9 0.5 -4.7 -3.1 1.6 1.2 4.7
1803 -0.8 -1.2 -1.2 0.0 -1.3 -0.8 -3.3 0.4 -3.9 -2.3 0.5 0.7 4.0
1806 -0.2 -0.2 -0.8 -0.0 -0.9 -0.3 -2.2 0.5 -2.9 -1.5 -0.0 0.2 3.1
1809 0.6 0.5 -0.2 0.1 -0.2 0.6 -1.9 0.8 -2.5 -1.5 0.1 -0.0 2.1
1812 1.0 0.8 0.2 0.2 0.2 1.1 -1.4 0.8 -2.2 -1.4 0.3 0.5 1.1
1815 1.6 1.0 0.5 0.4 0.6 1.8 -1.0 1.3 -1.8 -1.3 0.7 -0.1 0.5
1818 2.6 1.6 0.1 -0.0 -0.0 1.4 -0.9 1.3 -1.5 -1.4 -0.1 -0.0 0.1
1821 2.3 2.2 -0.2 -0.4 -0.2 0.7 -1.1 0.9 -0.9 -1.1 -1.5 -1.2 -0.1
1900 2.5 2.9 -0.4 -0.9 -0.6 -0.1 -1.5 0.3 0.0 -0.3 -3.0 -2.5 -0.5
1903 2.7 3.2 -0.7 -1.2 -1.1 -0.0 -1.0 0.6 0.3 -0.1 -3.2 -2.9 -1.2
1906 2.3 2.7 -0.8 -0.9 -1.2 -0.3 -0.4 0.5 -0.2 -0.6 -3.0 -2.9 -1.9
1909 1.7 2.1 -0.8 -0.6 -0.8 -0.5 -0.5 0.3 -0.8 -1.0 -2.6 -2.6 -2.1
1912 1.2 1.5 -0.6 -0.8 -0.8 -0.3 -1.5 0.3 -1.7 -1.7 -1.8 -2.1 -1.8
1915 0.7 1.2 -0.4 -0.7 -0.6 0.3 -4.2 0.7 -2.6 -2.3 -0.9 -1.3 -1.4
1918 -0.3 0.3 -1.0 0.1 -1.0 -0.6 -5.0 0.4 -3.1 -2.8 -0.9 -0.8 0.2
1921 -0.2 0.6 -0.3 0.1 -0.4 -0.9 -5.5 -0.6 -2.9 -2.7 -1.5 -0.5 1.1
2000 -0.0 0.6 -0.3 0.4 -0.2 -0.9 -5.1 -0.6 -2.7 -2.5 -1.5 -0.4 2.3
2003 0.3 1.4 -0.0 0.3 0.2 -0.1 -4.6 -0.1 -2.4 -2.3 -1.4 0.0 2.9
2006 0.5 1.1 0.2 0.1 0.3 0.2 -3.8 0.0 -1.9 -1.9 -0.9 -0.3 2.9
2009 0.5 0.4 0.4 0.4 0.5 0.7 -3.0 0.4 -1.9 -1.9 0.3 0.3 2.6
2012 0.3 0.1 0.7 0.7 0.8 0.7 -2.1 -0.0 -1.6 -1.7 0.6 0.6 1.6
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