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An extensive cold frontal boundary stretched from the western Gulf Coast to the Great Lakes on Thursday, while a ridge of high pressure continued to build over the Southwest.

Strong thunderstorms moved across the western Gulf Coast, the Mississippi Valley, the Tennessee Valley, the Ohio Valley and into the Northeast on Thursday due to strong cold front. Flood warnings were issued in Texas, Louisiana, Arkansas and Mississippi, while tornado watches were issued throughout Louisiana and Mississippi.

These intense thunderstorms brought very heavy rain to the region, and also created hazardous conditions along the Gulf Coast. Houston Clover, Texas, reported a midday total of 4.51 inches of rain, while Monroe, La., reported a midday total of 4.36 inches of rain. Strong winds also accompanied this cold front, as Dalhart, Texas, recorded wind speeds of 56 mph on Thursday.

Although the strongest thunderstorms were focused across the Gulf Coast states, moderate to heavy rain also affected a number of states to the northeast. Taylorville, Ill., reported a midday total of 2.28 inches of rain.

The Intermountain West experienced winter like conditions on Thursday as Winter Weather Advisories were issued in the central Rockies. Parts of the Pacific Northwest experienced light, spotty showers as a cold front approached the coast. The remainder of the West Coast avoided precipitation as high pressure dominated the region.

THURSDAY'S WEATHER EXTREMES:

HIGHEST TEMPERATURE (DEGREES F).........................88 Edinburg, Texas

HIGHEST HEAT INDEX (DEGREES F)..........................95 Kingsville NAS, Texas

LOWEST TEMPERATURE (DEGREES F)..........................10 Wolf Creek Pass, Colo.

LOWEST WIND CHILL (DEGREES F)...........................-9 Wolf Creek Pass, Colo.

HIGHEST WIND GUST (MPH).................................56 Dalhart, Texas

HIGHEST PRECIPITATION (INCHES)..........................4.51 Houston Clover, Texas

ON THIS DATE....... The Halloween Mega Storm happened on this date in 1991. Blizzard conditions were experienced throughout the Upper Midwest as Duluth, Minn., picked up 37 inches of snow. Minneapolis picked up 28 inches of snow. Both of these values were single storm records for the respective cities.

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