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StormTracker blog

Good evening. Looks like it is going to be a beautiful evening. Temperatures will cool off quickly tonight. Lows near 45* The wind will be light out of the Southeast at 5-15 mph. Friday will be turning cloudy with some showers moving into the Red River Valley either late afternoon or during the evening hours. Some hit and miss showers and thunderstorms this weekend with high temperatures most days close to 70*.

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November 22, 2012

Temperature   Observed Time Record Year Normal Normal Departure Last Year High 39° 118 AM 63° 2006 33° 6° 42° Low 15° 1159 PM -20° 1896 17° -2° 28° Average 27°       25° 2° 35°
Precipitation   Observed Record Year Normal Normal Departure Last Year Precipitation 0.20 1.40 1886 0.03 0.17 0.00 Month to Date 0.59 0.78     -0.19 0.23 SINCE SEP 1 2.93 5.50     -2.57 1.40 Since Jan. 1 14.15 21.56     -7.41 23.56
Snow   Observed Record Year Normal Normal Departure Last Year Snowfall 2.3 2.6 2010 0.4 1.9 Month to Date 4.5     5.1 0.6 SINCE SEP 1 8.1     5.8 2.3 SINCE JUL 1 8.1     5.8 2.3 Snow Depth
Degree Days Heating   Observed Normal Normal Departure Last Year Heating 38 40 -2 30 Month to Date 674 743 -69 678 SINCE SEP 1 1533 1569 -36 1294 SINCE JUL 1 1551 1619 -68 1295
Degree Days Cooling   Observed Normal Normal Departure Last Year Cooling 0 0 0 0 Month to Date 0 0 0 0 SINCE SEP 1 50 46 4 95 SINCE JAN 1 795 551 244 694
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: 0.8 Conditions SNOW LIGHT SNOW FOG BLOWING SNOW	Climate Normals for Today   Average Record Year Temperature High 32° 54° 1984 Temperature Low 16° -15° 1985     November 23 2012 Sunrise 742 AM CST Sunset 445 PM CST November 24 2012 Sunrise 744 AM CST Sunset 444 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.