000
AGAK78 PACR 131739
HMDACR
HYDROMETEOROLOGICAL DISCUSSION
NWS ALASKA PACIFIC RIVER FORECAST CENTER ANCHORAGE AK
800 AM AKST TUE JAN 13 2009
...FLOOD POTENTIAL...
THE FLOOD POTENTIAL FOR THE STATE OF ALASKA IS CURRENTLY LOW.
IMAGES OF THE TWEEDSMUIR GLACIER INDICATE THAT THE ALSEK RIVER
CONTINUES TO FLOW FREELY AS OF 12/27/08.
LASTLY... THE SKILAK GLACIER DAMMED LAKE HAS NOT RELEASED.
...HYDROMETEOROLOGICAL CONDITIONS...
WHILE MUCH OF THE MAINLAND REMAIN UNDER THE GRIP OF A COLD SNAP
DURING THIS PAST WEEK... THE PANHANDLE AND NORTHEAST GULF WAS
INFLUENCED BY LOWS MOVING IN FROM THE NORTH PACIFIC. THE EXTREMELY
DRY PATTERN OVER THE MAINLAND WAS CONTRAST BY THE HEAVY SNOWS OVER
THE SOUTHEAST LAST WEEKEND THAT TURNED TO RAIN EARLY THIS WEEK WITH
STRONG ONSHORE FLOW. THIS COMBINATION OF A DECENT SNOW PACK AND
MODERATE RAINFALL LEAD TO FLOOD WARNINGS FOR SMALL DRAINAGES IN THE
SOUTHEAST WHERE ICE AND SNOW BLOCKED CULVERTS AND FORCED WATER ON TO
ROADWAYS. SNOW DEPTHS ACROSS THE REST OF THE STATE CHANGED LITTLE
OVER THE PAST WEEK.
PRECIPITATION AMOUNTS GREATER THAN 2 INCHES ENDING: 3AM 01_13_2009
FOR THE LAST 6 DAYS. LIST CREATED: 2009-01-13 15:36:10
LOCATION NAME PE TS 144 HR
======== ==== == == ======
SIKA2 SITKA CRN PP RG : 7.59
PAIK KIANA PP RZ : 7.43
PAJN JUNEAU PP RZ : 6.55
LLKA2 LONG LAKE SNOTEL PC RM : 6.50
ANXA2 ANNEX CREEK PP RZ : 6.44
SPPA2 SNETTISHAM POWER PLA PP RZ : 6.17
BRRA2 BRADLEY RIVER BLW DA PC RG : 5.76
CTUA2 CHITITU CAMP PP RG : 5.70
BRRA2 BRADLEY RIVER BLW DA PP RG : 5.36
PAAP PORT ALEXANDER PP RZ : 5.33
HIRA2 HIDDEN INLET PP RZ : 5.21
PANT ANNETTE PP RZ : 4.93
PASI SITKA PP RZ : 4.09
PECA2 PELICAN PP RZ : 3.80
THOA2 THORNE BAY RAWS PP RG : 3.69
CIAA2 CANYON ISLAND PP RV : 3.69
PAKT KETCHIKAN PP RZ : 3.57
PAKW KLAWOCK PP RZ : 3.54
PTBA2 POINT BAKER PP RZ : 3.06
AYMA2 ALYESKA WEATHER MID PC RZ : 3.03
PAEL ELFIN COVE PP RZ : 3.02
AUKA2 AUKE BAY LARC PP RZ : 2.88
PAJK JUNEAU WFO PP RZ : 2.69
JLCA2 JUNEAU LEMON CREEK C PP RZ : 2.69
SOUA2 SOULE RIVER NEAR HYD PC RG : 2.58
SELA2 SEAL ISLAND RAWS PP RG : 2.51
BLTA2 BARTLETT COVE PP RG : 2.50
HHKA2 HAINES HWY AT KLEHIN PP RZ : 2.46
KTAA2 KETCHIKAN 13N PP RZ : 2.37
JDWA2 JUNEAU DOUGLAS WWTP PP RZ : 2.34
KTNA2 BEAVER FALLS PP RZ : 2.32
PAYA YAKUTAT PP RZ : 2.15
ECBA2 EAGLECREST BASE PP RZ : 2.14
HOOA2 HOONAH PP RZ : 2.01
THE COLD AIR THAT HAS BEEN FIRMLY ENTRENCHED IN THE DEEPER VALLEYS
WILL BE DISPLACED AS THE WEATHER PATTERN BECOMES MORE ACTIVE. A
POSITIVE PNA PATTERN IS FORECAST TO DEVELOP AS THE RIDGE THAT HAS
FORMED OVER THE EASTERN PACIFIC SLIDES EAST OVER CALIFORNIA. THIS
OPENS THE DOOR FOR STRONG SOUTHERLY FLOW OVER THE MAINLAND AND HIGH
PRECIPITATION AMOUNTS ALONG THE SOUTHERN COAST. HPC HAS DEPICTED
MUCH OF SOUTHCENTRAL ALASKA UNDER HEAVY RAIN AND SNOW FOR THE 15TH
AND 16TH.
RECENT ICE THICKNESS:
LOCATION NAME THICKNESS | DATE
======== ==== =================
SSLA2 | SNOWSHOE LAKE ICE NR NELCHINA | 17 | 01-01
CCVA2 | COLVILLE VILLAGE | 33 | 01-01
WCIA2 | CHANDALAR LAKE ICE | 25 | 12-29
BTTA2 | KOYUKUK RIVER AT BETTLES | 17 | 11-30
BRLA2 | BIRCH LAKE ICE | 22 | 01-07
CHFA2 | CHENA RIVER AT FAIRBANKS | 22 | 01-05
CNPA2 | CHENA LAKES ICE | 28 | 01-05
FMLA2 | 48 MILE LAKE NR CHENA HOT SPRI| 18 | 01-07
QULA2 | QUARTZ LAKE ICE | 26 | 01-07
HLIA2 | HARDING LAKE ICE | 20 | 01-08
OLNA2 | OLNES LAKE ICE | 16 | 01-06
SMLA2 | SMITH LAKE ICE | 17 | 01-08
FMRA2 | FORTYMILE RIVER AT TAYLOR HWY | 28 | 12-30
OBRA2 | OBRIEN CREEK | 24 | 12-30
GKNA2 | MANKOMEN LAKE | 20 | 11-30
MHSA2 | TANANA RIVER AT MANLEY HOT SPR| 19 | 01-02
LMHA2 | LAKE MINCHUMINA | 21 | 12-31
BETA2 | KUSKOKWIM RIVER AT BETHEL | 24 | 12-31
LHIA2 | LAKE HOOD ICE | 14 | 01-01
LVRA2 | BIG RIVER LAKES ICE | 25 | 01-04
....................................................................
THE DISCUSSION WILL BE ISSUED EVERY TUESDAY UNTIL SPRING BREAKUP
UNLESS CONDITIONS WARRANT. A GRAPHICAL VERSION OF THE HYDROMET
DISCUSSION WITH CURRENT PRECIPITATION AND WEATHER INFORMATION WILL
BE UPDATED DAILY ON THE APRFC WEB SITE.
HTTP://APRFC.ARH.NOAA.GOV/PRODUCTS/GHMD.PHP
$$
ETH
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