Tumbler-Snapper Test Series
Nuclear Test BAKER
Detonated: 15 April 1952
Time: 1730 GMT
TYPE OF DETONATION: Airburst
ALTITUDE OF DETONATION: 320 m (above ground)
REPORTED YIELD: 1 kiloton
RADIOIODINE (I-131) PRODUCED: 1.4 x 10E5 Curies
STABILIZED CLOUD HEIGHT: Top 4.9 km, msl;
Base 3.0 km, msl
MEASUREMENTS AVAILABLE FROM GROUND-LEVEL COLLECTORS: Yes
RADIOIODINE IN COUNTIES WITHOUT GROUND-LEVEL COLLECTORS
ESTIMATED BY: AIPC method.
CLOSE-IN FALLOUT PATTERN AVAILABLE: No
Trajectory and Fallout Characteristics
Tumbler-Snapper, Baker
Close-In Fallout
No Close-In Fallout data have been located for this test.
Town Data Base
No Town Data Base records have been located for this test.
County Data Base
The distribution of fallout in the County Data Base (CDB) region
(Fig.TS/2/TCDB) generally reflected the areas covered by the meandering upper-
air trajectories (Fig.TS/2/T). However, the deposition coverage was not
homogeneous and some counties beneath trajectory tracks showed no fallout, such
as southern Nevada where the area was virtually covered with trajectory tracks.
Areas distant from the trajectories on the other hand (most of Arizona, western
New Mexico, southeast Idaho, eastern Oregon) showed light to very light fallout.
Northwestern Arizona and adjacent southeast California had the heaviest fallout
and those areas were definitely associated with trajectories (Fig.TS/2/T). Note
that Ventura County, California, received a moderate amount of fallout and it
was traversed by the 3.0 km trajectory late on the first day after detonation
(1700 GMT, 15 April to 1800 GMT, 16 April).
Overall depositions in the region seemed heavy and very extensive for such
a small yield (1 kt) air burst explosion.
Upper Air Trajectories
The two trajectories calculated for this test were at low altitudes because
of the low yield and the low reported top of the radioactive cloud. Both
trajectories traced out convoluted paths at low speeds for nearly a week,
remaining entirely between the western border of Nevada and a north-south line
through western Wyoming (Fig.TS/2/T). The 3.0 km trajectory ranged between 550
km south of Los Angeles (over the Pacific Ocean) and Salt Lake City which it
reached at the end of the fourth day (1800 GMT, 18 April to 1800 GMT, 19 April).
It then moved south again to a point 200 km southeast of Yuma, Arizona, early on
the seventh day (1800 GMT, 21 April to 1800 GMT, 22 April).
The 4.9 km trajectory started very slowly eastward then looped counter-
clockwise very slowly around northwest Arizona and southwest Utah, crossed
Nevada to the west, going a short distance into California, at the end of the
third day, then headed north-northeast at higher speed reaching into Canada
250 km north-northwest of Havre, Montana, at the end of the fifth day.
List (1953) states that these trajectories have a large degree of
uncertainty because of the light and variable upper-level winds prevailing in
the week after the explosion. Contributing to the initial southwestward then
northeastward movement of the 3.0 km trajectory was the formation on 16 April of
a small upper-level low pressure system just east of the test site. This system
itself moved slowly to the southeast over two or three days augmenting the
southwestward movement of the 3.0 km trajectory.
Deposition of radioactive iodine (I-131), as depicted by gummed paper (GF)
observations, was confined to areas surrounding the envelope of the meandering
trajectories in the intermountain states.
The slow, stagnant movement of the debris cloud (extending between 3.0 km
and 4.9 km) around the four southwest states in the first few days after the
explosion should have provided heavy fallout there. But the daily depositions
through the fourth day were mostly dry and light in value, and were found near
the trajectories or where the trajectories had been, mainly in southern coastal
California and also in Nevada and Idaho (4.9 km trajectory, there).
The lack of fallout stations in the four-state region within 350 km of NTS,
where the trajectories spent considerable time, precluded detection of any heavy
fallout that may have occurred there. On the fifth day, fallout in southern
California tapered to small dry values. Also, light to moderate wet
depositions occurred generally over Arizona on the same day when the
trajectories were by now in Nevada-Utah (3.0 km) and Idaho-Montana (4.9 km)
hundreds of kilometers to the north. Depositions also occurred in northeast
Nevada and at Salt Lake City (both wet) near the
3.0 km trajectory, and in Montana (wet) fairly near the 4.9 km trajectory. On
the sixth day (1800 GMT, 20 April to 1800 GMT, 21 April) depositions occurred at
large distances away from both sides of the 3.0 km trajectory which, at the time
, was moving south along the east Nevada border and along the west Arizona
border. The fallout amounts were very light and dry in southern California and
light (wet) in Arizona and New Mexico.
On the seventh day, light fallout also occurred in southern California,
Arizona and New Mexico (all dry) while the 3.0 km trajectory, by now, was in
Mexico.
A remarkable feature of this test was the persistence of fallout day after
day over the seven days monitored and particularly in areas distant from the
trajectories (fifth and sixth days after detonation). Considering the
uncertainty of these trajectories (List, 1953), it is highly likely that
wind currents not defined here transported radioactive debris to areas distant
from the trajectories where precipitation carried the debris to the ground.
Reference
List, R. J., 1953: Radioactive debris from Operations Tumbler and Snapper.
Observations beyond 200 miles from the test site, Part II. U.S. Weather Bureau,
Washington, DC. NYO-4512 (DEL), U.S. Atomic Energy Commission New York
Operations Office. Feb. 1953.
Figure TS/2/TCDB.
Table TS/2/CDB. Estimates of median I-131 depositions per unit area of ground
in the County Data Base area following the shot BAKER
detonated 4/15/1952.
TEST TEST State County FIPS I-131 GSD
name date code deposition
(y/mo/d) (nCi/m2)
BAKER 520415 AZ APACHE 4001 11.7 1.9
BAKER 520415 AZ COCHISE 4003 27.2 1.7
BAKER 520415 AZ GILA 4007 27.2 1.7
BAKER 520415 AZ GRAHAM 4009 27.2 1.7
BAKER 520415 AZ GREENLEE 4011 27.2 1.7
BAKER 520415 AZ MARICOPA 4013 62.2 1.7
BAKER 520415 AZ NAVAJO 4017 11.7 1.9
BAKER 520415 AZ PIMA 4019 66.1 1.5
BAKER 520415 AZ PINAL 4021 62.2 1.7
BAKER 520415 AZ SANTA CRUZ 4023 66.1 1.7
BAKER 520415 AZ YAVAPAI 4025 306.4 1.9
BAKER 520415 AZ YUMA 4027 62.2 1.5
BAKER 520415 AZ MOHAVE1 4151 37.9 1.9
BAKER 520415 AZ MOHAVE2 4152 37.6 1.9
BAKER 520415 AZ MOHAVE3 4153 780.0 1.9
BAKER 520415 AZ MOHAVE4 4154 780.0 1.9
BAKER 520415 AZ COCONINO1 4501 37.6 1.9
BAKER 520415 AZ COCONINO2 4502 23.3 1.7
BAKER 520415 AZ COCONINO3 4503 27.2 1.5
BAKER 520415 CA LOS ANGELE 6037 111.3 1.5
BAKER 520415 CA MONO 6051 0.0 0.0
BAKER 520415 CA SAN BERNAD 6071 392.8 1.7
BAKER 520415 CA INYO1 6271 22.1 1.7
BAKER 520415 CA INYO2 6272 22.1 1.7
BAKER 520415 CA INYO3 6273 782.9 1.9
BAKER 520415 CO DELTA 8029 0.0 0.0
BAKER 520415 CO DOLORES 8033 0.0 0.0
BAKER 520415 CO GARFIELD 8045 0.0 0.0
BAKER 520415 CO LA PLATA 8067 0.0 0.0
BAKER 520415 CO MESA 8077 0.0 0.0
BAKER 520415 CO MOFFAT 8081 0.0 0.0
BAKER 520415 CO MONTEZUMA 8083 0.0 0.0
BAKER 520415 CO MONTROSE 8085 0.0 0.0
BAKER 520415 CO OURAY 8091 0.0 0.0
BAKER 520415 CO RIO BLANCO 8103 0.0 0.0
BAKER 520415 CO SAN JUAN 8111 0.0 0.0
BAKER 520415 CO SAN MIGUEL 8113 0.0 0.0
BAKER 520415 ID ADA 16001 42.7 1.5
BAKER 520415 ID BANNOCK 16005 4.0 1.5
BAKER 520415 ID BEAR LAKE 16007 3.9 1.7
BAKER 520415 ID BINGHAM 16011 4.0 1.7
BAKER 520415 ID BONNEVILLE 16019 4.0 1.7
BAKER 520415 ID CANYON 16027 38.4 1.7
BAKER 520415 ID CARIBOU 16029 3.9 1.7
BAKER 520415 ID CASSIA 16031 57.3 1.7
Table TS/ 2/CDB (continued)
TEST TEST State County FIPS I-131 GSD
name date code deposition
(y/mo/d) (nCi/m2)
BAKER 520415 ID ELMORE 16039 42.7 1.7
BAKER 520415 ID FRANKLIN 16041 4.0 1.7
BAKER 520415 ID GOODING 16047 47.0 1.7
BAKER 520415 ID JEROME 16053 44.4 1.7
BAKER 520415 ID LINCOLN 16063 40.3 1.7
BAKER 520415 ID MINIDOKA 16067 28.2 1.7
BAKER 520415 ID ONEIDA 16071 12.1 1.7
BAKER 520415 ID OWYHEE 16073 59.8 1.7
BAKER 520415 ID POWER 16077 12.1 1.7
BAKER 520415 ID TWIN FALLS 16083 59.8 1.7
BAKER 520415 NV CHURCHILL 32001 18.0 1.7
BAKER 520415 NV DOUGLAS 32005 13.5 1.7
BAKER 520415 NV ELKO 32007 38.3 1.5
BAKER 520415 NV EUREKA 32011 99.2 1.7
BAKER 520415 NV HUMBOLDT 32013 0.0 0.0
BAKER 520415 NV LYON 32019 13.5 1.7
BAKER 520415 NV MINERAL 32021 4.5 1.7
BAKER 520415 NV PERSHING 32027 13.8 1.7
BAKER 520415 NV STOREY 32029 13.5 1.7
BAKER 520415 NV WASHOE 32031 13.0 1.5
BAKER 520415 NV WHITE PINE 32331 68.1 1.9
BAKER 520415 NV WHITE PINE 32332 136.1 1.9
BAKER 520415 NV WHITE PINE 32333 68.1 1.9
BAKER 520415 NV CARSON CIT 32510 13.4 1.7
BAKER 520415 NV LANDER1 32551 18.9 1.7
BAKER 520415 NV LANDER2 32552 33.5 1.7
BAKER 520415 NM BERNALILLO 35001 3.9 1.5
BAKER 520415 NM CATRON 35003 11.7 1.7
BAKER 520415 NM CHAVES 35005 0.0 0.0
BAKER 520415 NM COLFAX 35007 0.0 0.0
BAKER 520415 NM CURRY 35009 0.0 0.0
BAKER 520415 NM DE BACA 35011 0.0 0.0
BAKER 520415 NM DONA ANA 35013 11.7 1.7
BAKER 520415 NM EDDY 35015 0.0 0.0
BAKER 520415 NM GRANT 35017 11.7 1.7
BAKER 520415 NM GUADALUPE 35019 0.0 0.0
BAKER 520415 NM HARDING 35021 0.0 0.0
BAKER 520415 NM HIDALGO 35023 11.7 1.7
BAKER 520415 NM LEA 35025 0.0 0.0
BAKER 520415 NM LINCOLN 35027 0.0 0.0
BAKER 520415 NM LOS ALAMOS 35028 0.0 0.0
BAKER 520415 NM LUNA 35029 11.7 1.7
BAKER 520415 NM MCKINLEY 35031 3.9 1.7
BAKER 520415 NM MORA 35033 0.0 0.0
BAKER 520415 NM OTERO 35035 0.0 0.0
Table TS/2/CDB (continued)
TEST TEST State County FIPS I-131 GSD
name date code deposition
(y/mo/d) (nCi/m2)
BAKER 520415 NM QUAY 35037 0.0 0.0
BAKER 520415 NM RIO ARRIBA 35039 0.0 0.0
BAKER 520415 NM ROOSEVELT 35041 0.0 0.0
BAKER 520415 NM SANDOVAL 35043 0.0 0.0
BAKER 520415 NM SAN JUAN 35045 0.0 0.0
BAKER 520415 NM SAN MIGUEL 35047 0.0 0.0
BAKER 520415 NM SANTA FE 35049 0.0 0.0
BAKER 520415 NM SIERRA 35051 11.7 1.7
BAKER 520415 NM SOCORRO 35053 3.9 1.7
BAKER 520415 NM TAOS 35055 0.0 0.0
BAKER 520415 NM TORRANCE 35057 0.0 0.0
BAKER 520415 NM UNION 35059 0.0 0.0
BAKER 520415 NM VALENCIA 35061 3.9 1.7
BAKER 520415 OR HARNEY 41025 0.0 0.0
BAKER 520415 OR MALHEUR 41045 17.1 1.7
BAKER 520415 UT BEAVER 49001 31.2 1.7
BAKER 520415 UT CACHE 49005 4.5 1.7
BAKER 520415 UT CARBON 49007 0.0 0.0
BAKER 520415 UT DAGGETT 49009 0.0 0.0
BAKER 520415 UT DAVIS 49011 0.0 0.0
BAKER 520415 UT DUCHESNE 49013 0.0 0.0
BAKER 520415 UT EMERY 49015 0.0 0.0
BAKER 520415 UT GARFIELD 49017 0.0 0.0
BAKER 520415 UT GRAND 49019 0.0 0.0
BAKER 520415 UT JUAB 49023 62.4 1.7
BAKER 520415 UT MILLARD 49027 62.4 1.7
BAKER 520415 UT MORGAN 49029 0.0 0.0
BAKER 520415 UT PIUTE 49031 13.4 1.7
BAKER 520415 UT RICH 49033 0.0 0.0
BAKER 520415 UT SALT LAKE 49035 0.0 0.0
BAKER 520415 UT SAN JUAN 49037 0.0 0.0
BAKER 520415 UT SANPETE 49039 31.2 1.7
BAKER 520415 UT SEVIER 49041 17.8 1.7
BAKER 520415 UT SUMMIT 49043 0.0 0.0
BAKER 520415 UT UINTAH 49047 0.0 0.0
BAKER 520415 UT UTAH 49049 62.4 1.9
BAKER 520415 UT WASATCH 49051 0.0 0.0
BAKER 520415 UT WAYNE 49055 0.0 0.0
BAKER 520415 UT WEBER 49057 0.0 0.0
BAKER 520415 UT IRON1 49211 62.4 1.7
BAKER 520415 UT IRON2 49212 26.8 1.7
BAKER 520415 UT IRON3 49213 17.8 1.7
BAKER 520415 UT KANE1 49251 26.8 1.9
BAKER 520415 UT KANE2 49252 26.8 1.7
Table TS/2/CDB (continued)
TEST TEST State County FIPS I-131 GSD
name date code deposition
(y/mo/d) (nCi/m2)
BAKER 520415 UT TOOELE1 49451 30.3 1.7
BAKER 520415 UT TOOELE2 49452 17.1 1.7
BAKER 520415 UT BOX ELDER1 49931 29.9 1.7
BAKER 520415 UT BOX ELDER2 49932 12.8 1.7
BAKER 520415 WY CARBON 56007 0.0 0.0
BAKER 520415 WY FREMONT 56013 0.0 0.0
BAKER 520415 WY LINCOLN 56023 3.9 1.7
BAKER 520415 WY SUBLETTE 56035 0.0 0.0
BAKER 520415 WY SWEETWATER 56037 0.0 0.0
BAKER 520415 WY UINTA 56041 0.0 0.0
Figure TS/2/T. Estimated trajectories, at several altitudes, of the radioactive cloud resulting
from the test BAKER of 15 April 1952. Numbers indicate the position of each
trajectory at 0000 GMT for several days following the explosion.
Figure TS/2/F.
Table TS/2/GF. Estimates of I-131 daily deposition derived from gummed-film results and associated
precipitation indices for the shot BAKER detonated 4/15/1952.
. Dep = daily deposition of I-131 per unit area of ground (nCi per sq m)
. Pi = precipitation index
Site State Month and day
__________________________________________________________________________________________________
4/15 4/16 4/17 4/18 4/19 4/20 4/21 4/22
Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi
ABILENE TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ALAMOSA CO NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
ALBANY NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ALBUQUERQUE NM 0 1 0 1 0 1 0 1 0 1 2 6 2 2 1 1
ALPENA MI 0 1 0 1 0 1 0 1 0 1 1 1 0 1 0 1
AMARILLO TX 0 1 0 1 0 1 0 1 0 1 0 1 1 4 0 1
ATLANTA GA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BAKER OR NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
BAKERSFIELD CA NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
BALTIMORE MD 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BILLINGS MT 0 1 0 1 0 1 0 1 2 1 2 4 0 1 0 1
BINGHAMTON NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BIRMINGHAM AL 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BISMARCK ND 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BOISE ID 0 1 0 1 0 1 26 2 1 2 2 1 0 1 0 1
BOSTON MA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BUFFALO NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
BURNS OR NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
BUTTE MT NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
CARIBOU ME 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CASPER WY NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
CATALINA CA 2 1 26 1 0 1 34 2 8 1 2 1 2 1 1 1
CHARLESTON WV 0 1 0 1 0 1 0 1 5 1 0 1 0 1 0 1
CHEYENNE WY NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
COLO SPRINGS CO NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
COLUMBIA MO 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CONCORDIA KS 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
CORPUS CRIS. TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DANSVILLE NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DAYTON OH 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DEL RIO TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
DENVER CO NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
DES MOINES IA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
____________________
NA = not available
1 Table TS/2/GF (continued)
Site State Month and day
__________________________________________________________________________________________________
4/15 4/16 4/17 4/18 4/19 4/20 4/21 4/22
Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi
DODGE CITY KS NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
DUNKIRK NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
EAST PORT ME 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ELKO NV 0 1 0 1 0 1 9 2 24 4 1 1 0 1 0 1
ESCANABA MI 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
EUREKA CA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
FARGO ND 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
FLAGSTAFF AZ 0 1 0 1 0 1 0 1 6 6 20 6 0 1 0 1
FLORENCE SC 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
FORT SMITH AK 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
FORT WAYNE IN 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
FRESNO CA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
GOODLAND KS 0 1 0 1 0 1 0 1 0 1 1 4 0 1 0 1
GRAND JNC CO 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
GRAND RAPIDS MI 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
GREAT FALLS MT 0 1 0 1 0 1 0 1 5 3 0 1 0 1 0 1
GREEN BAY WI 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
GREENVILLE SC 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
HARRISBURG PA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
HAVRE MT NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
HELENA MT NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
HURON SD 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
JACKSON MS 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
JACKSONVILLE FL 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
KALISPELL MT NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
KNOXVILLE TN 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
LAGUARDIA NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
LANDER WY NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
LOS ANGELES CA 2 1 26 1 0 1 34 2 8 1 2 1 2 1 1 1
LOUISVILLE KY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
LYNCHBURG VA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MARQUETTE MI 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MEDFORD OR 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MEMPHIS TN 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
____________________
NA = not available
1 Table TS/2/GF (continued)
Site State Month and day
__________________________________________________________________________________________________
4/15 4/16 4/17 4/18 4/19 4/20 4/21 4/22
Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi
MILWAUKEE WI 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MISSOULA MT NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
MOBILE AL 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MONTGOMERY AL 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
MT. SHASTA CA NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
MT. WASH. NH 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
NASHVILLE TN 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
NEW ORLEANS LA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
NEW YORK AEC NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
NORFOLK NB 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
NORTH PLATTE NB NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
NORTHHEAD OR 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
OSWEGO NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
PENDLETON OR NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
PEORIA IL 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
PHOENIX AZ NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
POCATELLO ID 0 1 0 1 0 1 0 1 4 3 0 1 0 1 0 1
PORT ARTHUR TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
PROVIDENCE RI 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
PUEBLO CO NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
RAPID CITY SD 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
RATON NM NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
RED BLUFF CA NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
RENO NV 0 1 0 1 0 1 7 2 1 1 0 1 0 1 0 1
RICHMOND VA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ROCHESTER MN 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ROCHESTER NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ROCK SPRINGS WY 0 1 0 1 0 1 0 1 0 1 1 1 0 1 0 1
ROSEBURG OR NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
ROSWELL NM 0 1 0 1 0 1 0 1 0 1 0 1 1 1 0 1
SACRAMENTO CA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SALT LAKE UT 0 1 0 1 0 1 0 1 6 7 2 1 0 1 0 1
____________________
NA = not available
1 Table TS/2/GF (continued)
Site State Month and day
__________________________________________________________________________________________________
4/15 4/16 4/17 4/18 4/19 4/20 4/21 4/22
Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi Dep Pi
SAN DIEGO CA NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
SAVANNAH GA 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SCOTTSBLUFF NB 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SHERIDAN WY NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
SPOKANE WA 0 1 0 1 0 1 0 1 3 3 0 1 0 1 0 1
ST. CLOUD MN 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
ST. MARIE MI 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
SYRACUSE NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
TALLAHASSEE FL 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
TERRE HAUTE IN 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
TEXARKANA AK 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
TOLEDO OH 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
TUCSON AZ 0 1 0 1 0 1 0 1 34 4 32 6 2 2 1 1
VALENTINE NB NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
WASHINGTON DC 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WATERTOWN NY 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WICH. FALLS TX 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WICHITA KS 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WILLISTON ND 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WILMINGTON DE 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
WINNEMUCCA NV NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1 NA 1
YOUNGSTOWN OH 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
YUMA AZ 0 1 2 1 1 1 0 1 37 4 6 2 0 1 0 1
____________________
NA = not available
Figure TS/2/CD.