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January 2012 - Obs/Disco/Banter


HoarfrostHubb

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Out of curiosity, anyone have some stats on below zero temps without snow cover? As in how often has it happened at certain sites

Here is the number of times it has occurred in station history along with last occurrence and temperature for ASOS and first order climate sites.

ST ID  STATION                        ELEV    NUM  LAST DATE & LOW
-- --- ------------------------------ ----   ----  ---------------
CT BDR BRIDGEPORT SIKORSKY AP            5      2  1962-12-30   -1
CT DXR DANBURY MUNI AP                 457      1  2000-01-18   -2
CT BDL HARTFORD                        190     15  2011-02-11   -5
CT HFD HARTFORD BRAINARD FLD            20     16  1997-02-25   -4
MA BED BEDFORD HANSCOM FLD             133     10  1962-12-21   -1
MA MQE BLUE HILL                       625     39  2007-01-27   -1
MA BOS BOSTON                           12     13  2005-01-22   -2
MA AQW NORTH ADAMS                     652      3  1989-01-21   -1
MA PSF PITTSFIELD WB AP                        27  2011-02-10   -4
MA NZW SOUTH WEYMOUTH NAS              157     10  1986-01-15   -1
MA MVY VINEYARD HAVEN AP                68      1  2000-01-16   -5
MA ORH WORCESTER                      1000     29  1996-01-06   -5
ME AUG AUGUSTA FAA AP                  350     41  2000-01-15   -3
ME BGR BANGOR AP                       148     51  2004-02-17   -9
ME NHZ BRUNSWICK                        70     64  2004-02-17   -2
ME CAR CARIBOU WFO                     624     36  2002-01-05   -5
ME EPO EASTPORT                         85     86  2002-12-09   -1
ME FVE FRENCHVILLE AROOSTOOK AP        988      1  1999-03-06   -2
ME IZG FRYEBURG E SLOPES AP            445      2  1997-02-04   -2
ME GYX GRAY                            378      5  2004-01-27   -2
ME GNR GREENVILLE                     1029      5  1960-12-11   -4
ME GNR GREENVILLE MAINE FORESTRY SVC  1028      1  1999-01-07   -7
ME HUL HOULTON AP                      476     42  1998-12-23   -1
ME MLT MILLINOCKET FAA AP              407     12  1999-02-24   -2
ME PWM PORTLAND JETPORT                 45     45  2004-01-26   -7
NH BML BERLIN MUNI AP                 1158      1  1998-02-16  -12
NH CON CONCORD ASOS                    346     85  2009-01-02   -2
NH AFN JAFFREY                        1080      1  1996-12-31   -3
NH LEB LEBANON MUNI AP                 598     27  1989-03-08   -3
NH MHT MANCHESTER AP                   225      2  1954-02-13   -6
NH MWN MT WASHINGTON                  6267    122  2003-11-09   -5
RI BID BLOCK ISLAND STATE AP           110      4  1992-02-03  -10
RI PVD PROVIDENCE                       60     13  2004-01-16   -6
VT BTV BURLINGTON WSO AP               330     60  2009-01-15  -16
VT MPV MONTPELIER AP                  1126     46  2011-12-25   -1
VT MVL MORRISVILLE STOWE STATE AP      732      1  1997-01-30  -14
VT 1V4 SAINT JOHNSBURY                 700     58  2010-12-10   -2

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Here is the number of times it has occurred in station history along with last occurrence and temperature for ASOS and first order climate sites.

ST ID  STATION						ELEV	NUM  LAST DATE & LOW
-- --- ------------------------------ ----   ----  ---------------
CT BDR BRIDGEPORT SIKORSKY AP			5	  2  1962-12-30   -1
CT DXR DANBURY MUNI AP				 457	  1  2000-01-18   -2
CT BDL HARTFORD						190	 15  2011-02-11   -5
CT HFD HARTFORD BRAINARD FLD			20	 16  1997-02-25   -4
MA BED BEDFORD HANSCOM FLD			 133	 10  1962-12-21   -1
MA MQE BLUE HILL					   625	 39  2007-01-27   -1
MA BOS BOSTON						   12	 13  2005-01-22   -2
MA AQW NORTH ADAMS					 652	  3  1989-01-21   -1
MA PSF PITTSFIELD WB AP						27  2011-02-10   -4
MA NZW SOUTH WEYMOUTH NAS			  157	 10  1986-01-15   -1
MA MVY VINEYARD HAVEN AP				68	  1  2000-01-16   -5
MA ORH WORCESTER					  1000	 29  1996-01-06   -5
ME AUG AUGUSTA FAA AP				  350	 41  2000-01-15   -3
ME BGR BANGOR AP					   148	 51  2004-02-17   -9
ME NHZ BRUNSWICK						70	 64  2004-02-17   -2
ME CAR CARIBOU WFO					 624	 36  2002-01-05   -5
ME EPO EASTPORT						 85	 86  2002-12-09   -1
ME FVE FRENCHVILLE AROOSTOOK AP		988	  1  1999-03-06   -2
ME IZG FRYEBURG E SLOPES AP			445	  2  1997-02-04   -2
ME GYX GRAY							378	  5  2004-01-27   -2
ME GNR GREENVILLE					 1029	  5  1960-12-11   -4
ME GNR GREENVILLE MAINE FORESTRY SVC  1028	  1  1999-01-07   -7
ME HUL HOULTON AP					  476	 42  1998-12-23   -1
ME MLT MILLINOCKET FAA AP			  407	 12  1999-02-24   -2
ME PWM PORTLAND JETPORT				 45	 45  2004-01-26   -7
NH BML BERLIN MUNI AP				 1158	  1  1998-02-16  -12
NH CON CONCORD ASOS					346	 85  2009-01-02   -2
NH AFN JAFFREY						1080	  1  1996-12-31   -3
NH LEB LEBANON MUNI AP				 598	 27  1989-03-08   -3
NH MHT MANCHESTER AP				   225	  2  1954-02-13   -6
NH MWN MT WASHINGTON				  6267	122  2003-11-09   -5
RI BID BLOCK ISLAND STATE AP		   110	  4  1992-02-03  -10
RI PVD PROVIDENCE					   60	 13  2004-01-16   -6
VT BTV BURLINGTON WSO AP			   330	 60  2009-01-15  -16
VT MPV MONTPELIER AP				  1126	 46  2011-12-25   -1
VT MVL MORRISVILLE STOWE STATE AP	  732	  1  1997-01-30  -14
VT 1V4 SAINT JOHNSBURY				 700	 58  2010-12-10   -2

cool.

MVY must have been down below 0F since 2000....if not 2005, then 2004.

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cool.

MVY must have been down below 0F since 2000....if not 2005, then 2004.

Yeah they were below zero 4 times in '05 and twice in '04. Problem is in the climate record on a lot of the days the snow depth is missing, so I couldn't verify the coincidence of below zero lows and bare ground without a little more research.

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Boston had no snow over 1/22/05? Hell of a thaw?

Snow depth was likely zero at 12Z that morning that they recorded the low of -2. My guess is the 9.1 inches of snow came later in the day. Or it could be crappy snow depth data, also a possibility. I'd have to do a little more research to know for sure.

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Snow depth was likely zero at 12Z that morning that they recorded the low of -2. My guess is the 9.1 inches of snow came later in the day. Or it could be crappy snow depth data, also a possibility. I'd have to do a little more research to know for sure.

They had 3.3 on the 20th, IDK. I seem to remember snow cover before the blizzard.

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I'm pretty sure hartford had snowcover on Feb. 11th, 2011, also.

Yeah probably a case of crappy data. It shows as zero snow depth on the BOX F6 for BDL as well, for what it's worth. I was gonna list all the caveats... but that could be kinda long LOL. NCDC snow depth data can be questionable. There I said it :P

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10.9° F and dropping. I'm wondering if I'll go subzero tonight. NWS P&C has me at 1° F for an overnight low, so it may be close here. Considering I'm in a bit of a sheltered valley, I could do it, particularly if the winds find a way to slacken off after midnight.

Yeah, I am forecast for 1F as well. I think the wind will keep it above, but it will be close

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Yeah they were below zero 4 times in '05 and twice in '04. Problem is in the climate record on a lot of the days the snow depth is missing, so I couldn't verify the coincidence of below zero lows and bare ground without a little more research.

Oh no...my bad. I didn't realize the snowcover part was added in. Either way, thx for posting

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Snow depth was likely zero at 12Z that morning that they recorded the low of -2. My guess is the 9.1 inches of snow came later in the day. Or it could be crappy snow depth data, also a possibility. I'd have to do a little more research to know for sure.

BOS had snow cover on 1/22/05 even before the blizzard. We had back to back clipper systems right before. BOS recorded 3.1" on Jan 16-17 and then 3.3" on Jan 19-20...the highest maximum temperature recorded between Jan 17-Jan 22 was 28F.

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Yea ORH 1/6/96 is wrong too.

Yeah we had like 20" or more on the ground prior to the Jan 7-8, 1996 blizzard, lol. We had just gotten 14" in the 1/4/96 storm...and there was already decent snow on the ground before that one too from the snowy December.

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