Severe Thunderstorm and Flash Flood Threats Continue into the Weekend

Severe thunderstorms are expected from the southern Plains to the Midwest through Friday night. Severe storm hazards may include large hail, severe winds, and tornadoes, some of which may be strong. There will be another chance for severe thunderstorms on Saturday for portions of Texas, the Lower Mississippi Valley, and the Ohio Valley. Storms could result in locally heavy rain and flash flooding. 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.

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Severe Thunderstorm and Flash Flood Threats Continue into the Weekend

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