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1990 WEATHER OBSERVATIONS Taconite Inlet Project Abbreviations [Day of Year] * no specific time, range of times, or time not specified c approximately (in reference to time) esp. especially est. estimated ht. height min. minimum max. maximum temp. temperature (all in degrees C) Cloud types; number following type abbreviation is cloud extent, in tenths: AC Altocumulus ACL Altocumulus (lenticularis) AS Altostratus CC Cirrocumulus CI Cirrus CS Cirrostratus CU Cumulus SC Stratocumulus SF Stratus (fractus) ST Stratus OVC Overcast (10/10 cloud extent) 9 June 1990 [160] 0700 clear AM previous two days have been clear and warm 1900 SF1 10 June [161] 0700 sky partially obscured in fog10 1900 AS10 11 June [162] 0700 AC1 early AM clear, sunny, warm 1900 clear 12 June [163] 0700 sky partially obscured in fog, but lifting 1600 thin overcast, snowing lightly, radiation bouncing around 1900 ST9, thin; sun brightly visible 13 June [164] 0700 clear * clear and sunny, calm 1900 clear 14 June [165] 1900 ST10; clear to north, lowering to south 15 June [166] 0700 SC10 1900 CI2 16 June [167] 0700 ST1 1900 ST9; sun dimly visible, clearing from NW 17 June [168] 0700 clear 1900 clear 18 June [169] 0700 ST1, CS1 1900 CS1 19 June [170] 1900 clear 20 June [171] 0700 CI1 1900 AC10 21 June [172] 0700 SC9 1900 ST10, light rain 22 June [173] 0700 ST10, snowing 0900 clearing; snow has stopped 1300 sunny, temp. 1.5¡ 1900 ST1, AS9 23 June [174] 0700 clear 1900 ST1, CS4 24 June [175] 0700 SF1, AC1; the SF is breaking up 1900 clear 25 June [176] 0700 clear 1900 clear 26 June [177] 0700 clear 1900 clear 27 June [178] 0700 clear 1900 clear 28 June [179] 0700 AC6, CI2 1000 warm (6¡), cloudy, radiation bouncing around 1200 cold, clouds thickening 1730 raining lightly 1900 AS5, AC5 29 June [180] 0700 Fog10, 1/8 mi. visibility; sun dimly visible 1900 SF1, AC7 30 June [181] 0700 SC10 1145 intermittent rain begins 1900 SC10 1 July [182] 0700 AC2, AS3, CS4 1900 SC10 2 July [183] * rain between approx. 0330 and 0800 0700 Fog 10, with rain 3 July [184] 0700 AC6 1900 AC5, CS4 4 July [185] 0700 ST10 1900 SC9, CS1 5 July [186] 0700 ST10 AM low ceiling, snow above 2000 ft on peaks * snow mid-afternoon 1900 ST10 6 July [187] 0700 ST10 AM drizzle, low ceiling; drizzle and rain all day 1900 ST10 2300 first break in stratus; cooling 7 July [188] 0700 ST10 1500 rain begins 1900 SC7, AS3 PM rain, highest winds of season to date 8 July [189] AM 8/10 clouds, snow flurries 1900 SC4, AS5, CI1 2300 snowing moderately 9 July [190] 0700 Fog 10, sun dimly visible AM snowing, low ceiling 1900 sky partially obscured in blowing snow, windy PM all peaks snow covered 10 July [191] 0700 blowing snow, visibility 0.5 mi., windy (gusts 20+ knots) AM 0 to 1 cm snow on ground 1230 blowing snow, gusts 20+ mph PM less wind, snowfall lighter 1900 blowing snow, visibility 0.5 mi., windy 11 July [192] 0700 indefinite obscured, light snow, ST10 AM clouds may be thinning 1900 ST9, AS1 * snow begins again late 12 July [193] 0700 blowing snow, somewhat wet; visibility 0.5 mi., windy PM wet snow all day 1900 blowing snow, visibility 0.5 mi., windy late temperature drops, starting to clear? 13 July [194] 0700 blowing snow, windy; patchy snow cover 1300 snow stops; some sun beginning to burn through 1500 sun intense 1600 some sun through hole in clouds 1700 OVC 1900 blowing snow evening seems to be clearing 14 July [195] 0700 ST10 AM ceiling about 700 ft, very light rain 1000 occasional sun; cold wind 1900 AS10 15 July [196] 0700 ST2, AS8 AM cold and raw 1900 ST3, AS7; light snow, clouds lifting 16 July [197] 0700 SF1, SC7; clear to north AM clearing, cool N breeze, some stratus * full sun by mid-afternoon; clear by 1800 1900 clear 17 July [198] 0700 CC5, in great streaks * mid-day sun, then high clouds 1900 AS5, CS4 2200 precipitation starts 18 July [199] 0700 SC5, AS5 1000 light drizzle PM tiny bit of sun; lowering and thickening clouds 1900 ST10 in light drizzle evening rain 19 July [200] 0700 ST10 in light rain AM rain/wet snow; calm PM occasional sun, feels like clearing 1900 ST3, AS3, CI1 20 July [201] 0700 AS10, still 1900 SF4, AS2, CI3 2300 rain begins 21 July [202] * rain and some wet snow overnight, to before 0600 0700 ST10 PM pea soup all day 1900 ST9; clouds appear very thin 2100c climb out of ST at 300 ft, to watch partial solar eclipse 22 July [203] 0700 CC2 AM mostly clear, except 1/10 to south 1900 AC3 23 July [204] 0700 CI1 AM clear, max. temp. reaches 13.5¡; calm 1900 clear, calm 24 July [205] 0700 CI1 1200 CS10, temperature falling 1900 CS9 PM very light drizzle 25 July [206] * rain during the night, esp. 0230-0430; heavy at times 0700 ST2, AC5, CI1 PM occasional sun 1900 CU1, CI2 26 July [207] 0700 SF2, AS8; lowering to south * intermittent frozen drizzle all afternoon; calm 1900 ST10 and light drizzle all night 27 July [208] 0700 ST10, fog and light drizzle PM clear patches; overcast at 200 ft but thin; calm 1900 ST5, SC1 28 July [209] 530 clear until now 0700 CC5 PM partly sunny, warm; depart 2030 1990 sources: RSB copied field book pages DRH field book (notes and general weather summary section) PCSP weather report forms TI Meteorological station field book