AL
$5,000 TO $50,000
F1
MODERATE DAMAGE (73-112 MPH)
1 - 3.1 MILES
18 - 55 YDS
CST
15 MIN
TORNADO
NOT CONFIRMED
$50,000 TO $500,000
F2
SIGNIFICANT DAMAGE (113-157 MPH)
10 - 31.9 MILES
F3
SEVERE DAMAGE (158-206 MPH)
< 1 MILE
100
176 - 527 YDS
50
600
3.2 - 9.9 MILES
56 - 175 YDS
450
300
$500 TO $5,000
EST
WITH HEAVY RAIN
2 HRS
> 2 HRS
F4
DEVASTATING DAMAGE (207-260 MPH)
F0
LIGHT DAMAGE (40-72 MPH)
900
30
WATERSPOUT MOVING ASHORE
$500,000 TO $5,000,000
FROM STORM DATA
32 - 99.9 MILES
528 - 1759 YDS
30 MIN
2250
150
< 18 YDS
WITH LARGE HAIL
FROM NEWSPAPER CLIPPINGS
80
$50 TO $500
90
200
NO DAMAGE REPORTED
210
360
60
2400
OBSCURED BY HEAVY RAIN
$5,000,000 TO $50,000,000
1500
< $50
230
NO VISIBLE SIGN
420
45 MIN
240
40
1 HR
120
270
180
1320
380
COUNTER-CLOCKWISE
CONFIRMED
STRAIGHT
220
70
0
AR
1250
500
1000
750
2500
2640
10
LEFT TURN LOOP
20
THICK COLUMN
WITH NO RAIN OR HAIL
ROPELIKE
FROM NWS SURVEY
CONE SHAPED
SINUSOIDAL
1200
110
660
700
1050
480
1800
AZ
THIN COLUMN
MST
CA
PST
CO
WITH LARGE HAIL AND HEAVY RAIN
DE
FL
3000
1 HR 30 MI
350
30 DEGREES TO THE LEFT
GA
540
IA
430
IL
1760
IN
KS
KY
LA
850
800
550
TORNADO MOVING OVER A LARGE BO
F5
INCREDIBLE DAMAGE (261-318 MPH)
> 100 MILES
$50,000,000 TO $500,000,000
520
130
490
MD
MI
MO
30 DEGREES TO THE RIGHT
45 DEGREES TO THE RIGHT
MS
690
400
370
60 DEGREES TO THE RIGHT
OTHER
530
45 DEGREES TO THE LEFT
3690
2100
NC
MODERATE COLUMN
2540
NE
NJ
NM
NV
NY
OH
OK
CLOCKWISE
OR
PA
SC
280
390
TN
EDT
810
TX
1 HR 15 MI
> 1760 YDS
5280
640
320
510
UT
VA
WA
WI
WV