weatherdude Posted February 10, 2011 Share Posted February 10, 2011 -28F in Bartlesville coldest in Oklahoma history according to NWS Tulsa....any day, any month, any location...., Link to comment Share on other sites More sharing options...
donsutherland1 Posted February 10, 2011 Share Posted February 10, 2011 -28F in Bartlesville coldest in Oklahoma history according to NWS Tulsa....any day, any month, any location...., Extremely impressive. Thanks for sharing this info. Link to comment Share on other sites More sharing options...
MN Transplant Posted February 10, 2011 Share Posted February 10, 2011 Amazing. Check out this pocket of cold. Link to comment Share on other sites More sharing options...
MN Transplant Posted February 10, 2011 Share Posted February 10, 2011 Looks like several of the Mesonet sites in NE OK had trouble with the cold. Hopefully it was just a data transmission error. Would be a shame to lose data during a record-breaking event. Link to comment Share on other sites More sharing options...
Mallow Posted February 10, 2011 Share Posted February 10, 2011 Snowcover + calm winds + clear skies = brrrrrr! Link to comment Share on other sites More sharing options...
Siberian Express Posted February 10, 2011 Share Posted February 10, 2011 wow, that is impressive that's close to the lowest I've had in MBY. For people who are not used to that type of temperature, I'm sure it is brutal. Hope they stay warm! Link to comment Share on other sites More sharing options...
fargoflooding Posted February 10, 2011 Share Posted February 10, 2011 wow, that is impressive that's close to the lowest I've had in MBY. For people who are not used to that type of temperature, I'm sure it is brutal. Hope they stay warm! How is this extreme cold impacting your community (besides being cold)? Are schools closing and have there been any infrastructure issues? I live in ND and we are used to these temps, but how other areas handled non-normal weather has always intrigued me. Stay safe and stay warm! If the trend continues, try ice fishing. It is a fun sport! Link to comment Share on other sites More sharing options...
Mallow Posted February 10, 2011 Share Posted February 10, 2011 Got to love this global warming! http://www.americanwx.com/bb/index.php?/forum/18-climate-change/ Link to comment Share on other sites More sharing options...
MN Transplant Posted February 10, 2011 Share Posted February 10, 2011 Via the UWash mailing list, the Nowata, OK mesonet site hit -30.5°F this morning! http://www.mesonet.o.../meteogram/nowa Link to comment Share on other sites More sharing options...
radarman Posted February 10, 2011 Share Posted February 10, 2011 Amazing stuff. Rivals or exceeds the coldest air from the 'Dacks or the Greens this year. Definitely some heat island effects going on in Tulsa and Lawton. Link to comment Share on other sites More sharing options...
masomenos Posted February 10, 2011 Share Posted February 10, 2011 This is really unprecedented, but Oklahoma can get pretty cold in the winter. I guess it has something to do with the rising elevation to its west and the Ozarks/Ouachitas to the east. Those features create a nice bowl effect throughout much of the state. Link to comment Share on other sites More sharing options...
tamarack Posted February 10, 2011 Share Posted February 10, 2011 Probably the Tulsa WSO (or whichever is nearest to the site) will need to check the accuracy of the instrument(s). When Big Black River reported Maine's coldest ever temp, -50 on 1/16/09, it was about 6 weeks before the WSO in CAR verified the new record and made the "official" announcement. Link to comment Share on other sites More sharing options...
snowman21 Posted February 10, 2011 Share Posted February 10, 2011 Probably the Tulsa WSO (or whichever is nearest to the site) will need to check the accuracy of the instrument(s). When Big Black River reported Maine's coldest ever temp, -50 on 1/16/09, it was about 6 weeks before the WSO in CAR verified the new record and made the "official" announcement. I was going to mention that also. I think either the Maine state climatologist or NCDC had to get involved as far as taking the instrument and testing its accuracy before declaring the -50 as being legitimate. Link to comment Share on other sites More sharing options...
brettjrob Posted February 10, 2011 Share Posted February 10, 2011 Definitely some heat island effects going on in Tulsa and Lawton. OKC looks to have had it the worst, though. Thankfully, we still pulled out a -5 F at the airport, which is the coldest since 1989 (and first subzero in 15 years). It's always interesting to me how much lower TUL typically gets on these cold night, despite being at a lower elevation and not a whole lot farther N than OKC. BTW, I think the Medicine Park site NW of LAW probably stayed warm more due to topography (Wichita Mtns). KLAW itself hit 0. Probably the Tulsa WSO (or whichever is nearest to the site) will need to check the accuracy of the instrument(s). When Big Black River reported Maine's coldest ever temp, -50 on 1/16/09, it was about 6 weeks before the WSO in CAR verified the new record and made the "official" announcement. The -31 F at the Nowata site on the Mesonet should be solid. The Mesonet is probably better-maintained than most ASOS sites, or at least equal. No doubt it will still be double-checked given the magnitude of the record in question, though. Link to comment Share on other sites More sharing options...
Mallow Posted February 10, 2011 Share Posted February 10, 2011 OKC looks to have had it the worst, though. Thankfully, we still pulled out a -5 F at the airport, which is the coldest since 1989 (and first subzero in 15 years). It's always interesting to me how much lower TUL typically gets on these cold night, despite being at a lower elevation and not a whole lot farther N than OKC. BTW, I think the Medicine Park site NW of LAW probably stayed warm more due to topography (Wichita Mtns). KLAW itself hit 0. The -31 F at the Nowata site on the Mesonet should be solid. The Mesonet is probably better-maintained than most ASOS sites, or at least equal. No doubt it will still be double-checked given the magnitude of the record in question, though. Perhaps that lower elevation is actually part of the reason. The nighttime inversion could be stronger/deeper in the "bowl" there, keeping winds dead. I noticed this morning it was a bit breezier in central OK than in NE OK. Link to comment Share on other sites More sharing options...
snowmanwx Posted February 10, 2011 Share Posted February 10, 2011 Very deep snow in northeast Oklahoma yesterday. In fact, check out this dispatch from Tulsa: 000 NOUS44 KTSA 101956 PNSTSA PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE TULSA OK 156 PM CST THU FEB 10 2011 ARZ001-002-010-011-019-020-029-OKZ049-053>076-120000- BENTON-CARROLL-WASHINGTON AR-MADISON-CRAWFORD-FRANKLIN-SEBASTIAN- PUSHMATAHA-CHOCTAW-OSAGE-WASHINGTON OK-NOWATA-CRAIG-OTTAWA-PAWNEE- TULSA-ROGERS-MAYES-DELAWARE-CREEK-OKFUSKEE-OKMULGEE-WAGONER- CHEROKEE-ADAIR-MUSKOGEE-MCINTOSH-SEQUOYAH-PITTSBURG-HASKELL- LATIMER-LE FLORE- 156 PM CST THU FEB 10 2011 ...ALL TIME OKLAHOMA RECORD LOW TEMPERATURE SET THIS MORNING... ...ALL TIME OKLAHOMA 24 HOUR SNOWFALL RECORD OCCURRED TUESDAY... THE STRONG WINTER STORM THAT MOVED THROUGH THE REGION TUESDAY BROUGHT RECORD SNOWFALL FOLLOWED BY RECORD LOW TEMPERATURES THIS MORNING ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. THE OKLAHOMA MESONET STATION A NOWATA REACHED A LOW TEMPERATURE OF -31 DEGREES THIS MORNING. PENDING VERIFICATION BY NOAA`S NATIONAL CLIMATIC DATA CENTER...THAT MARK WILL ECLIPSE THE PREVIOUS STATEWIDE RECORD LOW TEMPERATURE OF -27 DEGREES. THE PREVIOUS RECORD LOW WAS SET AT VINITA IN FEBRUARY 1905 AND AT WATTS IN JANUARY 1930. THE MESONET STATIONS ARE MAINTAINED BY THE OKLAHOMA CLIMATOLOGICAL SURVEY. NUMEROUS OTHER LOW TEMPERATURE RECORDS WERE BROKEN THIS MORNING ACROSS OKLAHOMA AND NORTHWEST ARKANSAS WITH SEVERAL LOCATIONS DROPPING BELOW THE PREVIOUS OKLAHOMA STATE RECORD. RECORD LOW TEMPERATURES READINGS THIS MORNING FROM THE MESONET AND OTHER SURFACE OBSERVATION SITES IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS INCLUDE: NOWATA OK -31 PRYOR OK -28 BARTLESVILLE OK -28 BLACKWELL OK -27 FAYETTEVILLE AR -18 TULSA OK -12 MCALESTER OK -4 IN ADDITION TO THE BITTERLY COLD TEMPERATURES...RECORD SNOW FELL TUESDAY FEBRUARY 9TH 2011 AS A STRONG WINTER STORM MOVED OVER THE REGION. THE SPAVINAW DAM NWS CO-OP SITE MEASURED 27 INCHES OF SNOWFALL TUESDAY FEBRUARY 9TH 2011 FOR A 24 HOUR PERIOD. PENDING VERIFICATION BY NOAA`S NATIONAL CLIMATIC DATA CENTER...THAT SNOWFALL TOTAL BREAKS THE PREVIOUS 24 HOUR OKLAHOMA STATE RECORD SNOWFALL OF 26 INCHES SET DURING THE MARCH 2009 BLIZZARD AT BOTH FREEDOM AND WOODWARD. IN ADDITION...SEVERAL LOCATIONS ACROSS NORTHWEST ARKANSAS REPORTED SNOWFALL THAT LIKELY APPROACHED THE ARKANSAS STATE RECORD FOR 24 HOUR SNOWFALL. BOTH THE RECORD LOW TEMPERATURES AND SNOWFALL FROM THE FEBRUARY 9TH 2011 WINTER STORM ARE PRELIMINARY AND WILL CONTINUED TO BE INVESTIGATED BY THE NATIONAL WEATHER SERVICE IN TULSA...THE OKLAHOMA CLIMATOLOGICAL SURVEY AND THE NATIONAL CLIMATIC DATA CENTER. $$ Link to comment Share on other sites More sharing options...
aslkahuna Posted February 10, 2011 Share Posted February 10, 2011 NCDC will have to verify the observations before the records are official. Steve Link to comment Share on other sites More sharing options...
tacoman25 Posted February 10, 2011 Share Posted February 10, 2011 Snowcover + calm winds + clear skies = brrrrrr! Guess Oklahoma hasn't seen that combination since 1930! Link to comment Share on other sites More sharing options...
tacoman25 Posted February 10, 2011 Share Posted February 10, 2011 Probably the Tulsa WSO (or whichever is nearest to the site) will need to check the accuracy of the instrument(s). When Big Black River reported Maine's coldest ever temp, -50 on 1/16/09, it was about 6 weeks before the WSO in CAR verified the new record and made the "official" announcement. Considering three separate locations apparently broke the state record (one by 3 degrees?), I think it's safe to say it's broke. Link to comment Share on other sites More sharing options...
Mallow Posted February 10, 2011 Share Posted February 10, 2011 Guess Oklahoma hasn't seen that combination since 1930! I guess not, at least, not the exact combination that led to this morning! Link to comment Share on other sites More sharing options...
tacoman25 Posted February 10, 2011 Share Posted February 10, 2011 Very deep snow in northeast Oklahoma yesterday. In fact, check out this dispatch from Tulsa: I've always wondered: how much of an effect does snowcover actually have, or more, does greater snowcover necessarily mean colder temp potential? I mean, is a 18" snowpack going to result in more cooling than a 6" one? Either way, everything is covered in snow pretty well... Link to comment Share on other sites More sharing options...
brettjrob Posted February 10, 2011 Share Posted February 10, 2011 I've always wondered: how much of an effect does snowcover actually have, or more, does greater snowcover necessarily mean colder temp potential? I mean, is a 18" snowpack going to result in more cooling than a 6" one? Either way, everything is covered in snow pretty well... I think you can see some evidence of greater snowpack having an effect this morning. However, the caveat is that this past storm here was fairly windy, so it may simply be that only areas with 6-8"+ were able to avoid having a lot of bare/exposed surface area from drifting. Link to comment Share on other sites More sharing options...
wi_fl_wx Posted February 11, 2011 Share Posted February 11, 2011 Also amazing are the forecast highs for next Thursday. If the temperatures reach the 70s as expected, it will be a 100 degree change in just over a week! Link to comment Share on other sites More sharing options...
JoMo Posted February 11, 2011 Share Posted February 11, 2011 Also amazing are the forecast highs for next Thursday. If the temperatures reach the 70s as expected, it will be a 100 degree change in just over a week! There was a 50-60 degree change in a lot of stations from overnight lows to highs today. -20's to 20's in a lot of locations. Nowata had a low of -31 and a high of 22. Marshall had a low of -25 and a high of 31 for a 56 degree spread. That usually happens in the panhandle area. Link to comment Share on other sites More sharing options...
aslkahuna Posted February 11, 2011 Share Posted February 11, 2011 That wide diurnal range is an indicator that another ingredient for very cold temperatures was present. You not only need cold air, calm winds, snow cover but also very dry air with very low dewpoints. That will allow for maximum radiational cooling but will also warm up more in the daylight. Steve Link to comment Share on other sites More sharing options...
JBG Posted February 11, 2011 Share Posted February 11, 2011 This is really unprecedented, but Oklahoma can get pretty cold in the winter. I guess it has something to do with the rising elevation to its west and the Ozarks/Ouachitas to the east. Those features create a nice bowl effect throughout much of the state. True but isn't that a constant feature? Link to comment Share on other sites More sharing options...
beavis1729 Posted February 11, 2011 Share Posted February 11, 2011 I'm estimating that the normal low on 2/10 for Nowata, OK is about 27F (a bit north of Tulsa where the normal low is 30F...and of course Nowata is more rural). If correct, the actual -31F low temp is a departure of -58. Could that be the largest daily low temp. departure from normal ever recorded in the US? If not, it must be really close... Link to comment Share on other sites More sharing options...
Spot Posted February 11, 2011 Share Posted February 11, 2011 Just amazing temps.. I got to -11 in Adair county in Oklahoma with about 12" of snow.. I dont think I have ever seen seen it that cold with that much snow EVER at once! This morning was "milder" with a warm 3 degrees. Link to comment Share on other sites More sharing options...
WestMichigan Posted February 11, 2011 Share Posted February 11, 2011 I'm estimating that the normal low on 2/10 for Nowata, OK is about 27F (a bit north of Tulsa where the normal low is 30F...and of course Nowata is more rural). If correct, the actual -31F low temp is a departure of -58. Could that be the largest daily low temp. departure from normal ever recorded in the US? If not, it must be really close... Back in January 94 when a major cold spell went thorough Ohio there were unofficial reports of -40° and colder temperatures in areas where there are no official readings within several counties. The normal low would be in the 20s so that would be a departure of over 60°F. I am sure there are other places also. Just go around and look at the state min temperature records and compare that to averages. You should find out that 58° is respectable, but not a record. Link to comment Share on other sites More sharing options...
bluewave Posted February 11, 2011 Share Posted February 11, 2011 Really impressive record. It comes only two years after the Maine record low temperature. http://www.erh.noaa....-10_item001.htm Link to comment Share on other sites More sharing options...
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