Thursday Daily Weather Summary

ONLINE DAILY WEATHER SUMMARY

Thursday, 18 March 1999

YESTERDAY'S TEMPERATURE EXTREMES IN THE LOWER 48
ALASKAN WEATHER
HAWAIIAN WEATHER
CONCEPT OF THE DAY
HISTORICAL WEATHER EVENTS

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YESTERDAY'S TEMPERATURE EXTREMES IN THE LOWER 48 -- The lowest temperature on Wednesday was XX degrees below zero at XXX. Wednesday's high was XX degrees at XXX.

ALASKAN WEATHER -- ...

The state's lowest overnight temperature on Wednesday morning was XX degrees at XXX. The midafternoon state highest temperature was XX degrees at XXX.

HAWAIIAN WEATHER -- ....

For more information describing the various sets of lines on a Stüve Diagram and how you can make graphical determinations from a Stüve Diagram, you may consult the optional material in Thursday's electronic Supplemental Information .

HISTORICAL WEATHER EVENTS - 18 March

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

...1899...A tornado, rated F4, killed 12 people and injured 30 on a 17 mile track through Calhoun and Cleburne counties in Alabama. (Intellicast)
...1914...San Francisco, CA reached its highest temperature ever recorded in March. The mercury rose to 86 degrees. (Intellicast)
...1925...The great "Tri-State Tornado" occurred, the most deadly tornado in U.S. history. The tornado claimed 695 lives (including 234 at Murphysboro, IL and 148 at West Frankfort, IL), and caused seventeen million dollars property damage. It cut a swath of destruction 219 miles long and as much as a mile wide from east central Missouri to southern Indiana between 1 PM and 4 PM. The tornado leveled a school in West Frankfort, IL, and picked up sixteen students setting them down unharmed 150 yards away. Seven other tornadoes claimed an additional 97 lives that day. At one point, the tornado was moving at a record setting 73 mph. This tornado was easily an F5 on the Fujita scale with winds exceeding 260 mph. Instead of occurring along a cold front or in a squall line, the tornado was closely associated with a surface low pressure area. In all respects, it was a remarkable tornado and stands alone in its own class of tornadic events.(David Ludlum) (Intellicast)
...1971...High winds accompanied a low pressure system from the Rocky Mountains to the Great Lakes. Winds gusted to 100 mph at Hastings, NE, and reached 115 mph at Hays, KS. High winds caused two million dollars damage in Kansas. Fire burned 50,000 forest acres in eastern Oklahoma. (17th-19th) (The Weather Channel)
...1987...A storm in the central U.S. produced up to 10 inches of snow in western Nebraska, and up to six inches of rain in eastern sections of the state. The heavy rains pushed the Elkhorn River out of its banks, submerging the streets of Inman under three feet of water. (The National Weather Summary) (Storm Data)
...1989...A storm in the western U.S. produced heavy rain in California, with heavy snow in the Sierra Nevada Range. Venado, CA was drenched with 5.40 inches of rain in 24 hours. A dozen cities in the eastern U.S. reported new record high temperatures for the date, including Baltimore, MD with a reading of 82 degrees. (The National Weather Summary) (Storm Data)
...1990...Heavy rain caused extensive flooding of rivers and streams in Georgia, with total damage running well into the millions. Flooding also claimed six lives. Nearly seven inches of rain caused 2.5 million dollars damage around Columbus, and up to nine inches of rain was reported over the northern Kinchafoonee Basin in Georgia. (Storm Data)