The (literally freezing) cold Alaskan summer continues

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The cold, cloudy, wet weather has been with Alaskans since May, with a only a few short breaks here and there. Here’s a recent example from the usually warmish Copper River Basin: A rainy day Wednesday in Glennallen (wx data from close-by Gulkana–that’s where the airport and weather station are for the Glennallen area) with a high of only 48F (9C), then some clearing overnight allowing the temperature to drop to 29F (-2C), the coldest spot in the state Thursday morning. That’s right, below freezing in late June.  And it’s the 6th day in a row that the cold spot of the state has been at or below zero Celsius. Further inland, Eagle was the warmest spot in the state, but only at 70F (21C). Nice, but not a very warm day for Eagle on the Yukon, and not a temperature you’d expect for the hot spot. No station in Alaska has managed 80F (27C) since last weekend, which was one of those glorious breaks from the cold, with many places in the 80s, even upper 80s (~31C) on Friday through Sunday. It brings some truth to the old joke, “summer in Alaska can be really nice, and we’re especially thankful if it falls on a weekend.”

How about the 4th of July?

While we are still a little too far out for any forecast detail with hope of accuracy, it is looking likely the current cool trend will still be with us to varying degrees. Worst area will probably be the long suffering southwest quadrant of the state, with Southcentral not a whole lot better. The Interior and Southeast might get by with OK weather, which is not bad for this summer. Here’s why: A strong upper level low moving down the west coast from Siberia. Boy, have we seen this before!

500 mb forecast for 10 am July 4 2012
500 mb forecast for 10 am July 4 2012

You may use the comment form below to let me know how summer has been in your neck of the woods.

Here’s the rundown of highs, lows, and precipitation for the last 24 hours. Typical for this summer:

ALASKA TEMPERATURE AND PRECIPITATION BULLETIN
NATIONAL WEATHER SERVICE ANCHORAGE AK
435 PM AKDT FRI JUN 29 2012

HIGHEST TEMPERATURE LAST 12 HOURS. LOWEST TEMPERATURE LAST
24 HOURS. A "-" INDICATES TEMPERATURES BELOW ZERO.
PRECIPITATION FOR 24 HOURS ENDING AT 4 PM AKDT.

: ID           STATION      HI    LO    PCPN  SNOW
:                                             DEPTH
PAFC  : ANCHORAGE NWS     :  62 /  47 /  0.00 /
PANT  : ANNETTE           :  60 /  50 /  0.36 /
PABR  : BARROW AIRPORT    :  44 /  34 /  0.00 /
PABE  : BETHEL            :  56 /  41 /  0.00 /
PABT  : BETTLES           :  62 /  55 /  0.04 /
PABV  : BIRCHWOOD         :  59 /  48 /    M  /
PACD  : COLD BAY          :  48 /  40 /  0.05 /
PACV  : CORDOVA           :  60 /  36 /  0.00 /
PADL  : DILLINGHAM        :  52 /  43 /    M  /
PADU  : DUTCH HARBOR      :  50 /  46 /    T  /
PAFA  : FAIRBANKS AIRPORT :  68 /  52 /    T  /
PAGK  : GULKANA           :  67 /  39 /  0.01 /
PAHO  : HOMER             :  54 /  48 /  0.03 /
PAJN  : JUNEAU            :  50 /  48 /  1.50 /
PAEN  : KENAI             :  63 /  43 /  0.01 /
PAKN  : KING SALMON       :  59 /  38 /  0.00 /
PADQ  : KODIAK            :  60 /  46 /  0.03 /
PAOT  : KOTZEBUE          :  50 /  41 /  0.00 /
PAMC  : MCGRATH           :  68 /  54 /  0.02 /
PAOM  : NOME              :  50 /  43 /  0.00 /
PAOR  : NORTHWAY AIRPORT  :  67 /  47 /  0.00 /
PAAQ  : PALMER            :  64 /  48 /  0.00 /
PAPG  : PETERSBURG        :  54 /  48 /    M  /
PASN  : SAINT PAUL ISLAND :  45 /  40 /  0.10 /
PAWD  : SEWARD            :  68 /  47 /    T  /
PASI  : SITKA             :  52 /  47 /  0.17 /
PATK  : TALKEETNA         :  64 /  47 /  0.06 /
PAVD  : VALDEZ            :  63 /  45 /    T  /
PAWS  : WASILLA           :  61 /  45 /    M  /
PAWR  : WHITTIER          :  62 /  51 /  0.00 /
PAYA  : YAKUTAT           :  53 /  49 /  0.14 /
:
:  ALASKA TEMPERATURE EXTREMES.
:  HIGHEST TEMPERATURE LAST 12 HOURS.
:   69 AT KALTAG
:  LOWEST TEMPERATURE LAST 24 HOURS.
:   30 AT MEKORYUK

Here are the details for the Gulkana freeze (times listed in ADT) (the hourly temperatures only got down to 30, but 29 was reached between the hourlys, something you can discover by looking at the undecoded observations, or on daily climate reports:

ID      day time  sky                      vis         temp dp wind      alt  RH   wind chill
PAGK  AA 27 0453  OVC042                    10          46  39 21008     960  76%  41
PAGK  AA 27 0553  FEW010 BKN042 OVC055      10 R-       45  41 19008     962  86%  40
PAGK  AA 27 0653  FEW006 BKN040 OVC055      10 R-       45  42 18008     963  89%  40
PAGK  AA 27 0753  FEW006 BKN045 OVC055      10 R-       45  43 19007     964  93%  41
PAGK  AA 27 0853  FEW020 BKN035 OVC050      10 R-       46  43 19006     965  89%  42
PAGK  AA 27 0953  FEW020 BKN030 OVC050      10 R-       46  43 18008     965  89%  41
PAGK  AA 27 1053  FEW007 BKN028 OVC050      10 R-       47  44 17008     965  89%  43
PAGK  AA 27 1153  FEW007 OVC028             10          47  44 17009     966  89%  42
PAGK  AA 27 1253  FEW007 SCT015 OVC028       5 R-F      46  45 16009     967  96%  41
PAGK  AA 27 1353  SCT007 SCT015 OVC034       7 R-       47  45 17013     967  93%  41
PAGK  AA 27 1453  SCT007 BKN015 OVC044       7 R-       46  44 15013     969  93%  40
PAGK  AA 27 1553  SCT015 BKN039 OVC047       7 R-       46  44 16009     970  93%  41
PAGK  AA 27 1653  FEW015 BKN043 OVC055      10 R-       46  44 16010     971  93%  41
PAGK  AA 27 1753  FEW015 BKN043 OVC055      10 R-       46  44 16012     972  93%  40
PAGK  AA 27 1853  BKN049 BKN080 BKN090      10          47  44 17008     972  89%  43
PAGK  AA 27 1953  BKN035 BKN080 BKN095      10          47  44 19006     973  89%  44
PAGK  AA 27 2053  FEW035 SCT070 BKN110      10          47  45 21005     973  93%  44
PAGK  AP 27 2126  FEW035 SCT070 SCT110      10          46  45 22004     973  96%  44
PAGK  AA 27 2153  CLR                       10          46  44 22003     974  93%  46
PAGK  AA 27 2253  CLR                       10          44  41 00000     975  89%  44
PAGK  AA 27 2353  CLR                       10          38  37 00000     976  96%  38
PAGK  AP 28 0033  CLR                    1 1/4 F        37  37 01003     976 100%  37
PAGK  AP 28 0037  VV001                    1/2 F        36  36 00000     976 100%  36
PAGK  AP 28 0047  FEW001                 1 1/4 F        34  34 00000     977 100%  34
PAGK  AP 28 0051  VV001                    3/4 F        34  34 00000     977 100%  34
PAGK  AA 28 0053  VV001                    3/4 F        34  33 00000     977  96%  34
PAGK  AP 28 0059  FEW001                 1 1/4 F        34  34 00000     976 100%  34
PAGK  AP 28 0102  FEW001                     3 F        34  34 00000     976 100%  34
PAGK  AA 28 0153  CLR                       10          32  32 00000     977 100%  32
PAGK  AA 28 0253  CLR                       10          31  30 00000     978  96%  31
PAGK  AA 28 0353  CLR                       10          31  30 32003     979  96%  31
PAGK  AA 28 0453  CLR                       10          30  30 00000     979 100%  30
PAGK  AA 28 0553  FEW050 SCT080 SCT160      10 F        34  32 00000     979  92%  34
PAGK  AA 28 0653  FEW040 SCT065 SCT110      10 (F)      42  39 00000     980  89%  42
PAGK  AP 28 0733  FEW009 SCT050 SCT110      10          45  39 00000     980  79%  45
PAGK  AA 28 0753  FEW009 SCT050 SCT110      10 (F)      45  40 00000     980  82%  45
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