Chinook Posted June 29, 2015 Author Share Posted June 29, 2015 In the northern Rockies: some temperatures I don't want to see here. --- ...RECORD HIGH TEMPERATURE SET AT MISSOULA MT...KALISPELL MT...ANDBUTTE MT... A RECORD HIGH TEMPERATURE OF 102 DEGREES WAS SET AT MISSOULA MTYESTERDAY SUNDAY JUNE 28. THIS BREAKS THE OLD RECORD OF 98 SET IN2007. A RECORD HIGH TEMPERATURE OF 102 DEGREES WAS SET AT KALISPELL MTYESTERDAY SUNDAY JUNE 28. THIS BREAKS THE OLD RECORD OF 92 SET IN2007. Link to comment Share on other sites More sharing options...
Roger Smith Posted June 29, 2015 Share Posted June 29, 2015 It was 113 F on Sunday at Walla Walla WA. And almost that hot everywhere else within 300 miles.112 F at Moses Lake, 111 at Pasco and Hanford, 110 at Omak near the Canadian border. This heat has relented just slightly today but is supposed to crank back up during the week. But it's only low to mid 60s on the coast. Link to comment Share on other sites More sharing options...
Chinook Posted July 3, 2015 Author Share Posted July 3, 2015 another potentially severe hailstorm is over the ridges east of Laramie WY. Yesterday (see 2nd picture) a storm was over the same place at about the same time of day, and it tracked toward Fort Collins as a non-severe storm. Link to comment Share on other sites More sharing options...
BlizzardWx Posted July 6, 2015 Share Posted July 6, 2015 Its been really quiet here in Utah. We did break a number of heat records for June so I guess that's something. Today was the first day with a high below 90F in 20 days. Link to comment Share on other sites More sharing options...
Chinook Posted July 6, 2015 Author Share Posted July 6, 2015 Fort Collins turned out to be 3.3F above normal for June, although I believe it was only above 90 three times. The average minimum temp was 4.2F above normal, due to humidity and clouds. Fort Collins had 71% of normal precip. Denver had 128% of normal precip. Link to comment Share on other sites More sharing options...
BlizzardWx Posted July 7, 2015 Share Posted July 7, 2015 A couple of severe storms in my area today, but I missed them all due to bad luck with my traveling. Link to comment Share on other sites More sharing options...
mayjawintastawm Posted July 8, 2015 Share Posted July 8, 2015 Incredibly gloomy since Monday, and we only have 0.09" rain to show for it. Hopefully this short wave will be strong enough to give us a good drenching before the upcoming hot weekend. Link to comment Share on other sites More sharing options...
Chinook Posted July 9, 2015 Author Share Posted July 9, 2015 Fort Collins has had 1.1" of rain since Sunday afternoon, and I don't think the sun has been seen since then. It also has not been much above 70 since late Sunday afternoon. It's so weird. This type of weather doesn't generally happen near July 4th. Yesterday it was so white and milky in the sky with the wildfire smoke from Canada. I could even smell the wildfire smoke for a short time. I think the rain during the day yesterday washed out some of that smoke. Link to comment Share on other sites More sharing options...
mayjawintastawm Posted July 9, 2015 Share Posted July 9, 2015 I know, I thought someone was smoking in our backyard yesterday. And the smoke plume is causing increased haze and redder sunsets all the way to the US East Coast! Beautiful afternoon here after 0.18" rain yesterday. Link to comment Share on other sites More sharing options...
Chinook Posted July 13, 2015 Author Share Posted July 13, 2015 I got some pictures of lenticular clouds. These are rare in summer. Yesterday we had a fairly dry downslope flow with 70kt winds at 300mb. I suppose the strong upper flow created larger gravity waves, allowing the lenticulars to form. Link to comment Share on other sites More sharing options...
mayjawintastawm Posted July 14, 2015 Share Posted July 14, 2015 May be an interesting late afternoon in the Denver Metro and east, with lots of moisture, what looks like a little "Denver cyclone" setting up, and some strong storms popping up on the plains perhaps 30 miles east of town. Lots of boundaries being created. We shall see... Link to comment Share on other sites More sharing options...
Chinook Posted July 14, 2015 Author Share Posted July 14, 2015 A storm just popped up near DIA and is moving west into the airport, or north of it. Possible plane delays with that kind of rain. Link to comment Share on other sites More sharing options...
mayjawintastawm Posted July 28, 2015 Share Posted July 28, 2015 Really warm evening on the Front Range. Still 87 at DEN at 9 PM, 81 here. Hope that front comes through. Have to look up the record high minimums just for fun. Edit: 71 for 7/28, 1931. Link to comment Share on other sites More sharing options...
Chinook Posted July 28, 2015 Author Share Posted July 28, 2015 It just dropped below 80 here at 9:20PM. It has been a very warm evening here. I believe this was the warmest day of the year here, 94 degrees. July 4th was also 94 degrees. We usually drop into the 70's much before 9:20pm. We had a downslope wind flow that was pretty much a dryline coming off the mountains. The dew point dropped from 60 to 40 in the daytime hours today, as temperature increased. Link to comment Share on other sites More sharing options...
mayjawintastawm Posted July 29, 2015 Share Posted July 29, 2015 Must have been downsloping here too because by 11 PM the breeze died and the temp dropped to 70. Nice today, 87. Monsoon has been very meh this month, just under an inch of rain 7/1-28. Things are looking less green and more normal for late July, though the prairie sunflowers and thistles are head high or higher in many open spots. Can't even find the lesser used connecting trails in Cherry Creek SP. Link to comment Share on other sites More sharing options...
ConiferMtnMan Posted July 29, 2015 Share Posted July 29, 2015 It was similar (but obviously cooler) even up here at 8,400'. Was only down to 67 by 9:30 pm which is about 7 degrees warmer than any other evening so far this summer. Woke up to 46 this morning, so we ended up near normal. Neat storms tonight grew right around sunset in the Tarryalls. Was really clear at 7 and was thundering by 8. Actually had pretty frequent lightning for about 5 minutes when it was first forming. Any early thoughts on winter along the front range with what seems like a strong Nino developing? I haven't been out here long, so I'm not super familiar with climo. Would seem the front range should be AN snowfall but most of the I-70 ski resorts might be BN snowfall, but that's mostly a hunch. Link to comment Share on other sites More sharing options...
Mercurial Posted July 29, 2015 Share Posted July 29, 2015 First snow of the season (or is it last?) happened back home in Montana yesterday. A few inches above 9,000 feet, and even Missoula at 3,000 ft had a Trace. I want to go back http://www.weather.com/news/news/montana-wyoming-snow-photos Link to comment Share on other sites More sharing options...
mayjawintastawm Posted July 29, 2015 Share Posted July 29, 2015 Any early thoughts on winter along the front range with what seems like a strong Nino developing? I haven't been out here long, so I'm not super familiar with climo. Would seem the front range should be AN snowfall but most of the I-70 ski resorts might be BN snowfall, but that's mostly a hunch. Check the NWS website - every couple months there is a feature and they have discussed El Nino. Even more interesting and also lots more technical have been the discussions on weather5280.com. Bottom line from my read of their work is that is the early call is somewhat greater than normal chances of cool and somewhat greater than normal chances of wet, but way too many variables to say anything with certainty. Link to comment Share on other sites More sharing options...
Chinook Posted July 30, 2015 Author Share Posted July 30, 2015 Must have been downsloping here too because by 11 PM the breeze died and the temp dropped to 70. Nice today, 87. Monsoon has been very meh this month, just under an inch of rain 7/1-28. Things are looking less green and more normal for late July, though the prairie sunflowers and thistles are head high or higher in many open spots. Can't even find the lesser used connecting trails in Cherry Creek SP. Fort Collins has about 1.65" this month. That is 96% of normal. Denver International has 1.06". That is 51% of normal. There hasn't been much rain in Fort Collins in the later part of this month. That's a bit weird, because the monsoon season pretty much happens July 15-August 15th. These are month-to-date precip plots: from the HPRCC, and from the NWS gridded analysis (available on http://water.weather.gov) Some of this is a little confusing- The gridded analysis is obviously too high for DIA and Fort Collins. Also, these plots disagree! Link to comment Share on other sites More sharing options...
mayjawintastawm Posted August 2, 2015 Share Posted August 2, 2015 Yes, those are indeed weird. Wonder what you'd get if you layered COCORaHS data in.Those might be the best, though arguably a few would underestimate. We're just getting the first real shower (if it lasts) in 2.5 weeks, right now. My backyard is all cracked and hard, even with watering enough to keep the plants from dying. Link to comment Share on other sites More sharing options...
Chinook Posted August 2, 2015 Author Share Posted August 2, 2015 Maybe this dot-plot from HPRCC will clear up some of the confusion. This plots July percent of normal precipiation as a colored dot. There was great variability. I still don't know how to explain the NWS 4-km gridded analysis problems. Also, there is a nearly circular outflow boundary moving outwards from the Denver area. Fort Collins dropped from 90 to 85 due to this. Link to comment Share on other sites More sharing options...
Chinook Posted August 3, 2015 Author Share Posted August 3, 2015 The CFSv2 monthly forecast predicts that Colorado will be below normal this month. But the MEX MOS and the GFS 2-meter temperatures are predicting hot temperatures here for a long time. Perhaps so much that are area can't be below normal for the month. Link to comment Share on other sites More sharing options...
mayjawintastawm Posted August 4, 2015 Share Posted August 4, 2015 Maybe this dot-plot from HPRCC will clear up some of the confusion. This plots July percent of normal precipiation as a colored dot. There was great variability. I still don't know how to explain the NWS 4-km gridded analysis problems. Also, there is a nearly circular outflow boundary moving outwards from the Denver area. Fort Collins dropped from 90 to 85 due to this. Those make sense. There were a lot of heavy showers right on our western doorstep that evaporated in the past couple of weeks, and areas just to the south (S of Castle Rock) had a lot more. That was a LARGE outflow boundary- 50+ mile radius! We got 0.2" of nice rain from that one with a rumble here and there. Storm was nearly stationary for almost an hour, but not real heavy. Link to comment Share on other sites More sharing options...
Chinook Posted August 4, 2015 Author Share Posted August 4, 2015 We just had a short rain shower, 0.06" at CSU. That's the first measurable rain here since 7/22. I was on vacation on 7/22 so I haven't seen rain here since 7/8 or 7/9. edit: looking back at the CoCoRAHS daily maps for Fort Collins, there has been a trace to a few hundredths of an inch on several days in mid-July after 7/9. Link to comment Share on other sites More sharing options...
Chinook Posted August 4, 2015 Author Share Posted August 4, 2015 NWS - Rapid City has a web page about upper air climatology. This page has precipitable water climatology and the NAM forecast of PW % of normal. This could be very useful at times. The max and min 850mb temperatures of all time for each RAOB site are listed in a PDF file. That part wasn't quite so helpful though. http://www.weather.gov/unr/uac Link to comment Share on other sites More sharing options...
Chinook Posted August 6, 2015 Author Share Posted August 6, 2015 We have 91 with a dew point of 23 here in Fort Collins. That's 8.5% RH. It's close to being red flag advisory conditions. Driest RH value of the summer. It looks like we will continue to have very little rain for a while. I believe July 15th-August 15th will turn out to be a very dry time period for this area. Link to comment Share on other sites More sharing options...
Chinook Posted August 8, 2015 Author Share Posted August 8, 2015 A Delta Airlines jet ran into large hailstones up inside the clouds in eastern Colorado yesterday. Emergency landing at Denver. I've never seen anything quite like this. http://www.weather.com/news/news/delta-airlines-aircraft-heavy-hail-damage-emergency-landing?cm_ven=Twitter_TheWeatherChannel_Weather_News_LLa_Article_No_5_20150808 Delta Airlines passengers had the scare of their lives Friday night when a flight from Boston to Salt Lake City encountered bad weather over eastern Colorado, with hail that caused significant damage Link to comment Share on other sites More sharing options...
Chinook Posted August 16, 2015 Author Share Posted August 16, 2015 Mesoscale discussion, talking about issuing a severe thunderstorm watch for the northern Front Range. Wow. If I could get more than a few drops of rain, it would be excellent. MESOSCALE DISCUSSION 1690 NWS STORM PREDICTION CENTER NORMAN OK 0108 PM CDT SUN AUG 16 2015 AREAS AFFECTED...PORTIONS OF SERN WY...NERN CO...A SMALL PART OF THE NEB PANHANDLE CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE VALID 161808Z - 162045Z PROBABILITY OF WATCH ISSUANCE...40 PERCENT SUMMARY...THE AREA IS BEING MONITORED FOR INCREASING SVR-TSTM POTENTIAL...AND IT IS POSSIBLE THAT A WW WOULD BE NEEDED AT SOME POINT THIS AFTERNOON. Link to comment Share on other sites More sharing options...
Chinook Posted August 17, 2015 Author Share Posted August 17, 2015 The Weather Channel mentioned that Phoenix tied its all-time highest temperature for the month of August (117) on Friday Aug 14th. At least one major heat record has been established in this heat wave. On Friday, Phoenix Sky Harbor International Airport recorded a high of 117 degrees, tying the Arizona capital's all-time record high for the month of August previously set Aug. 26, 2011. Link to comment Share on other sites More sharing options...
Chinook Posted August 17, 2015 Author Share Posted August 17, 2015 Another mesoscale discussion. Tornado watch likely here CONCERNING...SEVERE POTENTIAL...WATCH LIKELY VALID 171959Z - 172200Z PROBABILITY OF WATCH ISSUANCE...80 PERCENT SUMMARY...SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP/INCREASE INITIALLY ACROSS THE CO FRONT RANGE AND PALMER DIVIDE VICINITY OF EAST-CENTRAL/NORTHEAST CO...WITH OTHER SEVERE THUNDERSTORMS POSSIBLE LATER ACROSS SOUTHEAST WY. Link to comment Share on other sites More sharing options...
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