Tuesday Daily Weather Summary

ONLINE DAILY WEATHER SUMMARY

Tuesday, 20 April 1999

UPPER AIR
TEMPERATURE EXTREMES IN THE LOWER 48
ALASKAN WEATHER
HAWAIIAN WEATHER
CONCEPT OF THE DAY
HISTORICAL WEATHER EVENTS

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UPPER AIR -- Both the 500 and 300 mb charts for 00Z Tuesday.

TEMPERATURE EXTREMES IN THE LOWER 48 -- The lowest temperature in the lower 48 states on Monday was XX degrees at XXX and Monday's highest temperature was XX degrees at XXX.

ALASKAN WEATHER -- ....

The lowest overnight temperature in the state on Monday was XX degrees below zero at XXX, while the warmest temperature across the state by midafternoon was XX degrees at XXX.

HAWAIIAN WEATHER -- .....

WATCHES AND WARNINGS -- For a description of the terminology used in the official statements issued by the National Weather Service to inform the public of severe local storms, please read the Tuesday optional Supplemental Information.

HISTORICAL WEATHER EVENTS - 20 April

From the files of the Aviation Weather Center, Kansas City, MO and Intellicast

...1880...Sacramento, CA had its heaviest 24 hour rainfall when 7.24 inches fell. (Intellicast)
...1901...A spring storm produced unusually heavy snow in northeast Ohio. Warren received 35.5 inches in thirty-six hours, and 28 inches fell at Green Hill. Akron, OH established April records of 15.6 inches in 24 hours, and 26.6 inches for the month. Pittsburgh, PA established April records of 12.7 inches in 24 hours, and 13.5 inches for the month. (David Ludlum) (The Weather Channel)
...1920...A major tornado outbreak occurred in Mississippi and Alabama. Six tornadoes rated F4 on the Fujita scale killed 223 people and injured 1290. . (David Ludlum) (Intellicast)
...1952...The tankers Esso Suez and Esso Greensboro crashed in a thick fog off the coast of Morgan City, LA. Only five of the Greensboro's crew survived after the ship burst into flame. (David Ludlum)
...1984...A temperature of 106 degrees in Del Rio, TX set a new record high for April. (Intellicast)
...1987...Fifty-two cities in the central and eastern U.S. reported new record high temperatures for the date. The high of 92 degrees at Memphis, TN was a record for April, and the high of 94 at Little Rock, AR equaled their April record. (The National Weather Summary)
...1988...A storm in the western U.S. brought heavy rain to parts of California. Mount Wilson was soaked with 4.15 inches of rain in 24 hours. The heavy rain caused some flooding and mudslides in the Los Angeles area, and a chain reaction collision of vehicles along the Pomona Freeway which resulted in 26 injuries. (Storm Data) (The National Weather Summary)
...1989...Hot weather spread from the southwestern U.S. into the Great Plains Region. Twenty-three cities reported new record high temperatures for the date. The afternoon high of 104 degrees at Tucson, AZ was an April record, and highs of 87 at Provo, UT, 90 at Pueblo, CO, and 85 at Salt Lake City, UT, equaled April records. (The National Weather Summary)
...1990...A fast moving Pacific storm produced heavy snow in the central mountains and the Upper Arkansas Valley of Colorado, with a foot of snow reported at Leadville. Thunderstorms in the south central U.S. produced wind gusts to 76 mph at Tulsa, OK, and heavy rain which caused flooding of Cat Claw Creek in the Abilene, TX area. Lightning struck the building housing a fish farm in Scott, AR killing 10,000 pounds of fish. Many of the fish died from the heat of the fire. (The National Weather Summary) (Storm Data)