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StormTracker blog

Today will be a bit on the breezy side, but warm. High near 88* with a southeast wind at 10-25 mph. Tonight will be mostly cloudy, with an isolated storm possible. Low near 65* with a southeast wind at 10-20 mph. Thursday will start out nice, but showers and storms will develop during the afternoon. Some severe storms are possible. Storm chances will continue through Sunday with highs in the low to middle 80s.

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January 15, 2013

Temperature   Observed Time Record Year Normal Normal Departure Last Year High 28° 1159 PM 40° 1942 18° 10° 36° Low 0° 210 AM -36° 1888 0° 0° 21° Average 14°       9° 5° 29°
Precipitation   Observed Record Year Normal Normal Departure Last Year Precipitation 0.06 0.48 1889 0.02 0.04 0.00 Month to Date 0.35 0.37     -0.02 0.17 SINCE DEC 1 0.72 1.20     -0.48 0.53 Since Jan. 1 0.35 0.37     -0.02 0.17
Snow   Observed Record Year Normal Normal Departure Last Year Snowfall 0.7 4.0 1920 0.3 0.4 Month to Date 2.4     5.9 3.5 SINCE DEC 1 7.5     7.1 9.6 SINCE JUL 1 15.9     5.7 9.8 Snow Depth
Degree Days Heating   Observed Normal Normal Departure Last Year Heating 51 56 -5 36 Month to Date 751 836 -85 592 SINCE DEC 1 2302 2414 -112 1816 SINCE JUL 1 4211 4376 -165 3362
Degree Days Cooling   Observed Normal Normal Departure Last Year Cooling 0 0 0 0 Month to Date 0 0 0 0 SINCE DEC 1 0 0 0 0 SINCE JAN 1 0 0 0 0
Wind   Observed Highest Speed 3 Highest Direction 3 Highest Gust Speed 3 Highest Guest Direction 3	Relative Humidity   Observed Time Highest 3 3 Lowest 3 3 Average 3
Forecast Skycover POSSIBLE SUNSHINE: MM AVERAGE SKY COVER: 0.5 Conditions LIGHT SNOW FOG HAZE	Climate Normals for Today   Average Record Year Temperature High 18° 47° 1942 Temperature Low 0° -35° 1977     January 16 2013 Sunrise 807 AM CST Sunset 507 PM CST January 17 2013 Sunrise 807 AM CST Sunset 509 PM CST
Source: National Weather Service Climate Report

Wind (mph)	Temperature (Fahrenheit)
0	35°	30°	25°	20°	15°	10°	5°	0°	-5°	-10°	-15°	-20°	-25°	-30°	-35°	-40°	-45°
5	31	25	9	13	7	-1	-5	-11	-16	-22	-28	-34	-40	-46	-52	-57	-72
10	27	21	15	9	3	-4	-10	-16	-22	-28	-35	-41	-47	-53	-59	-66	-77
15	25	19	13	6	0	-7	-13	-19	-26	-35	-39	-45	-51	-58	-64	-71	-81
20	24	17	11	4	-2	-9	-15	-22	-29	-35	-37	-44	-55	-61	-68	-74	-84
25	23	16	9	3	-4	-11	-17	-24	-31	-37	-44	-51	-58	-64	-71	-78	-87
30	22	15	8	1	-5	-12	-19	-26	-33	-39	-46	-53	-60	-67	-73	-80	-89
35	21	14	7	0	-7	-14	-21	-28	-34	-41	-48	-55	-62	-69	-76	-82	-91
40	20	13	6	-1	-8	-15	-22	-29	-36	-43	-50	-57	-64	-71	-78	-84	-93
45	19	12	5	-2	-9	-16	-23	-30	-37	-44	-51	-58	-65	-72	-79	-86	-93
50	19	12	4	-3	-10	-17	-24	-31	-38	-45	-52	-60	-67	-74	-81	-89	-95
55	18	11	4	-3	-11	-18	-25	-32	-39	-46	-54	-61	-68	-75	-82	-89	-97
60	17	10	3	-4	-11	-19	-26	-33	-40	-48	-55	-62	-69	-76	-84	-91	-98

	Increasing Danger (Frostbite in 30 min.)
	Heightened Danger (Frostbite in 10 min.)
	Great Danger (Frostbite in 5 min.)

Differences Between the new and old systems

• Wind speed is now calculated for 5 feet off the ground. Wind speed was previously based on observations at 33 feet.
• The calm wind threshold was lowered to 3mph.
• A consistent standard for skin tissue resistance is now in use.
• Measurements are based on how wind affects the human face, typically the most exposed portion of the body.
• The table incorporates the theory that heat is lost from the body depending on its surroundings
• The sun's impact is not factored into the wind chill temperature formula.