Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

NOAA Technical Memorandum NWS SR-206 (Updated Through 2002)

ATLANTIC TROPICAL STORMS AND HURRICANES AFFECTING
THE UNITED STATES: 1899-2002 (continued)

Table 3. Tropical storms affecting the individual states, 1899-2002.

Area	Total	Frequency (Storms per year)	Return Period (years)
Coastal States	Total	Frequency (Storms per year)	Return Period (years)
Alabama (AL)	28	0.27	3.7
Connecticut (CT)	5	0.05	20.8
Delaware (DE)	7	0.07	14.9
Florida (FL)	79	0.76	1.3
Georgia (GA)	45	0.43	2.3
Louisiana (LA)	38	0.37	2.7
Massachusetts (MA)	8	0.08	13.0
Maryland (MD)	15	0.14	6.9
Maine (ME)	11	0.11	9.5
Mississippi (MS)	26	0.25	4.0
North Carolina (NC)	35	0.34	3.0
New Hampshire (NH)	4	0.04	26.0
New Jersey (NJ)	7	0.07	14.9
New York (NY)	11	0.11	9.5
Rhode Island (RI)	0	-	-
South Carolina (SC)	25	0.24	4.2
Texas (TX)	34	0.33	3.1
Virginia (VA)	17	0.16	6.1
Inland States
Arkansas (AR)	8	0.08	13.0
Kansas (KS)	1	0.01	104.0
Kentucky (KY)	4	0.04	26.0
Missouri (MO)	2	0.02	52.0
Ohio (OH)	1	0.01	104.0
Oklahoma (OK)	2	0.02	52.0
Pennsylvania (PA)	10	0.10	10.4
Tennessee (TN)	5	0.05	20.8
Vermont (VT)	1	0.01	104.0
West Virginia (WV)	4	0.04	26.0

Note: In this table, a tropical storm is considered to have affected a state if the center of the storm intersected any portion of the state while the storm was at tropical storm intensity.

Table 4. Total tropical storms and hurricanes affecting the individual coastal states, 1899-2002.

Area	Total	Frequency (storms per year)	Return Period (years)
Alabama (AL)	39	0.38	2.7
Connecticut (CT)	13	0.13	8.0
Delaware (DE)	7	0.07	14.9
Florida (FL)	139	1.34	0.8
Georgia (GA)	50	0.48	2.1
Louisiana (LA)	65	0.63	1.6
Massachusetts (MA)	14	0.13	7.4
Maryland (MD)	16	0.15	6.5
Maine (ME)	16	0.15	6.5
Mississippi (MS)	35	0.34	3.0
North Carolina (NC)	64	0.62	1.6
New Hampshire (NH)	6	0.06	17.3
New Jersey (NJ)	8	0.08	13.0
New York (NY)	20	0.19	5.2
Rhode Island (RI)	5	0.05	20.8
South Carolina (SC)	40	0.38	2.6
Texas (TX)	71	0.68	1.5
Virginia (VA)	21	0.20	5.0

Note: The hurricane information used for this table came from the NOAA publication Tropical Cyclones of the North Atlantic Ocean, 1871-1998 (Neumann, et al. 1999). Additional data for the years 1999-2002 were obtained from the National Hurricane Center's web site using the updated Atlantic track file (Jarvinen, et al. 1984) through 2002.

LCH RSS Feed

Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Research Studies