Heavy Rainfall for Portions of the West and Southern Plains; Dangerous Heat for the Northwest

Monsoonal flow coinciding with a frontal boundary will focus more showers and thunderstorms across the central Great Basin, central Rockies, Southwest into the Southern Plains. Heavy rainfall may bring about instances of flash flooding. Meanwhile, record setting heat continues for the Pacific Northwest through Monday. Heat combining with dry conditions could allow for any fires to quickly spread. Read More >


Regime 1	Regime 2	Regime 3

1000-700mb Mean Vector Flow: Light/Variable <4 knots 70 Total Days in Climatology	1000-700mb Mean Vector Flow: E/NE 4 knots ≤ Wind ≤ 10 knots 220 Total Days in Climatology	1000-700mb Mean Vector Flow: E/NE >10 knots 112 Total Days in Climatology

Regime 4	Regime 5	Regime 6

1000-700mb Mean Vector Flow: W/SW 4 knots ≤ Wind ≤ 10 knots 334 Total Days in Climatology	1000-700mb Mean Vector Flow: W/SW >10 knots 217 Total Days in Climatology	1000-700mb Mean Vector Flow: S/SE 4 knots ≤ Wind ≤ 10 knots 339 Total Days in Climatology

Regime 7	Regime 8

1000-700mb Mean Vector Flow: S/SE >10 knots 183 Total Days in Climatology	1000-700mb Mean Vector Flow: N/NW 4 knots ≤ Wind ≤ 10 knots 84 Total Days in Climatology

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Heavy Rainfall for Portions of the West and Southern Plains; Dangerous Heat for the Northwest

Florida Sea Breeze Thunderstorm Regime Mean Vector Flow