Table 1 The 11 GWTC Weather Types, abbreviations and descriptions (relative to seasonal and geographical normal)

From: Trends in weather type frequencies across North America

WT

Description

HC

Humid and Cool

H

Humid (normal temp)

HW

Humid and Warm

C

Cool (normal humidity)

S

Seasonal

W

Warm (normal humidity)

DC

Dry and Cool

D

Dry (normal temp)

DW

Dry and Warm

CFP

Cold Front Passage

WFP

Warm Front Passage