Monday, February 13, 2012

Thursday, February 9, 2012

SnowFail 2011-12 Update: Midwest Snow Running Nearly 40% Below Average

The Northeast and Mid Atlantic are not the only regions with significant snow deficits at the end of the third quarter of winter 2011-12. National Weather Service reports indicate that the Midwest is averaging 40% below the normal snowfall season-to-date. Of the 43 major reporting locations in Minnesota, Wisconsin, Michigan, Iowa, Illinois, Indiana, Ohio, Missouri, and Kentucky, only Ft. Wayne, Indiana has had more snow than the climatological average, by a mere 2.2", or about 11%.

The largest deficit in absolute terms is at Sault Ste. Marie MI, where the current total of 55" is over 3 feet less than the normal amount to date of just over 91". The map of snow depth on the ground for central and northern Michigan as of February 4 shows deficits of 2 feet or more in the Upper Peninsula. Temperatures at Sault Ste. Marie have been well above normal for all 3 winter months (December +3.8°, January +6.0°, February to date +13.1°).

Percentage-wise, the less than 1" at Kansas City MO is 94% below average. The weighted average deficit across all reporting stations is 39%.

The stations shown in the charts are:
DLH Duluth MN
MSP Minneapolis MN
STC St. Cloud MN
RST Rochester MN
LSE La Crosse WI
EAU Eau Claire WI
MSN Madison WI
AUW Wausau WI
GRB Green Bay WI
ANJ Sault Ste. Marie MI
APN Alpena MI
HTL Houghton Lake MI
MQT Marquette MI
DTW Detroit MI
FNT Flint MI
GRR Grand Rapids MI
LAN Lansing MI
MKG Muskegon MI
ALO Waterloo IA
DSM Des Moines IA
MCW Mason City IA
SUX Sioux City IA
DBQ Dubuque IA
MLI Moline IL
ORD Chicago IL
RFD Rockford IL
PIA Peoria IL
IND Indianapolis IN
FWA Ft. Wayne IN
CMH Columbus OH
CAK Akron OH
MFD Mansfield OH
TOL Toledo OH
YNG Youngstown OH
DAY Dayton OH
CLE Cleveland OH
COU Columbia MO
STL St. Louis MO
MCI Kansas City MO
BWG Bowling Green KY
LEX Lexington KY
SDF Louisville KY
JKL Jackson KY
Images (click to enlarge): Total winter snowfall to date vs. average, snowfall deficit in inches, and snowfall percentage deficit; all data from December 1, 2011 through February 7, 2012 from National Weather Service, charts by CapitalClimate; Michigan snow depth on ground departure from average, February 4, 2012, from National Weather Service

Tuesday, February 7, 2012

2011-12 Northeast/Mid Atlantic Snow Drought: Deficit Near 60%

With 3 weeks left in February, the winter of 2011-12 enters its fourth quarter with a major snow deficit in much of the U.S. In sharp contrast with last season, Northeast and Mid Atlantic winter snowfall to date is averaging nearly 60% below the climatological mean.

National Weather Service reports through February 6 show that stations from northern Maine to central North Carolina have all seen snowfall amounts below normal. In absolute terms, the deficit amounts range from 2.8" at Caribou, Maine to over 41" at Syracuse, New York. Percentage-wise, Caribou is only 5.3% below normal, while the southern locations in Virginia and North Carolina are at 100%, with no measurable snow reported.

The 3 major reporting locations in the Washington, DC region are all over 80% below normal, with Baltimore's BWI at nearly 90%.

The stations shown in the charts are:
CAR Caribou ME 
BGR Bangor ME
BTV Burlington VT
PWM Portland ME
CON Concord NH
ALB Albany NY
BGM Binghamton NY
SYR Syracuse NY
BOS Boston MA
ORH Worcester MA
PVD Providence RI
BDL Hartford CT
BDR Bridgeport CT
NYC Central Park NY
EWR Newark NJ
AVP Scranton PA
ACY Atlantic City NJ
PHL Philadelphia PA
ABE Allentown PA
ILG Wilmington DE
BWI Baltimore MD
DCA Washington DC
IAD Dulles VA
RIC Richmond VA
ORF Norfolk VA
RDU Raleigh NC
Images (click to enlarge): Total winter snowfall to date vs. average, snowfall deficit in inches, and snowfall percentage deficit; all data from December 1, 2011 through February 6, 2012 from National Weather Service; charts by CapitalClimate

Out-of-Season Downpour in Key West Sets New All-Time February Daily Rainfall Record;
9th Wettest February in 1 Day


The National Weather Service reports that the 4.34" of rainfall at Key West, Florida on February 5 is a new all-time daily rainfall record for the month of February. It also put this month into the position of 9th wettest February in climate records extending back to 1871. The 0.22" of precipitation as of 4 pm today moves the month up to 8th place, barely behind the 4.63" just 2 years ago.

The wettest February at Key West was in 1872, when 7.19" was recorded. Three of the wettest Februaries at Key West have now occurred in the last 15 years (1998, 2010, and 2012).

Key West also set a daily precipitation record by a wide margin on October 17, when the 6.91" smashed the previous record of 4.08" in 1910.

From the National Weather Service:
RAINFALL ON SUNDAY FEBRUARY 5TH TOTALED 4.34 INCHES AT KEY WEST   
INTERNATIONAL AIRPORT. THIS BROKE THE PREVIOUS RECORD OF 2.89
INCHES...WHICH WAS SET IN 1872. IN FACT...THIS WILL ALSO GO DOWN AS
THE WETTEST FEBRUARY DAY IN HISTORY. THE PREVIOUS RECORD OF 4.04
INCHES WAS SET ON FEBRUARY 28TH...1954.

..24-HOUR RAINFALL TOTALS...IN INCHES...FOR AVAILABLE STATIONS

KEY WEST INT'L AIRPORT 4.34
KEY WEST WFO 3.79
KEY LARGO NORTH--HANDAR 2.74
BIG COPPITT KEY--COCORAHS 2.26
CUDJOE KEY--COCORAHS 1.68
CURRY HAMMOCK--COOP 1.50
BIG PINE KEY--HANDAR 1.26
CUDJOE KEY 1.08
MARATHON AIRPORT 1.03
Image (click to enlarge): Radar-estimated rainfall for the Key West, Florida region, February 5, 2012, from wunderground.com

Saturday, February 4, 2012

Denver Breaks All-Time February 1-Day and 3-Day Snowfall Records


The National Weather Service reports that the heavy snowfall through this morning at Denver has set new 1-day and 3-day records for February:
12.5 INCHES OF SNOW FELL AT DENVER INTERNATIONAL AIRPORT ON FEBRUARY
3RD 2012. THIS ESTABLISHES A NEW SNOWFALL RECORD FOR THE DATE. THE
OLD RECORD WAS 7.5 INCHES SET BACK IN 1932. THE 12.5 INCHES THAT
FELL ALSO ESTABLISHED A DAILY SNOWFALL RECORD FOR THE MONTH OF
FEBRUARY. THE PREVIOUS DAILY SNOWFALL RECORD FOR FEBRUARY WAS 9.5
INCHES ON FEBRUARY 22ND 1909 AND FEBRUARY 19TH 1953.

IN ADDITION...FROM THE EVENING OF THE 2ND THROUGH THE MORNING OF THE
4TH...15.9 INCHES OF SNOW FELL AT DENVER INTERNATIONAL AIRPORT. THIS
ESTABLISHES A NEW THREE DAY SNOWFALL TOTAL FOR THE MONTH OF
FEBRUARY. THE OLD RECORD OF 14.1 INCHES OCCURRED BACK IN 1912.
Denver climate history began in 1872. The average temperature for the first 3 days of February at Denver is 2.5° above normal. Since Denver generally has its heaviest late-season snows in March, this could be considered an early spring storm.

Preliminary reports from the National Climatic Data Center show 27 daily snowfall records set on February 3, nearly all in Colorado.

Image (click to enlarge): Snowfall totals in the Denver region, February 2-4, 2012, from National Weather Service

Friday, February 3, 2012

Heat Record Numbers Continue Crushing Cold Count Into February, 176 to 0 (Plus 2 in Alaska, You Betcha', Sarah P)

Image (click to enlarge): U.S. daily high temperature records tied or broken ("X"), February 1-2, 2012, from National Climatic Data Center

5 PM Update: Tom Nelson really is a bot if he thinks this in any way supports his agenda, but thanks for the link, anyway. (While you're here, bot fans, please check out some of the other 211 posts on the subject of record temperatures.)

Original post:
The overwhelming ratio of daily high temperature records to low temperature records has continued from January into the first 2 days of February. Preliminary reports from the National Climatic Data Center show 176 heat records broken in the first 2 days of the month, vs. 0 cold records in the lower 48 states, plus all of 2 in Alaska. You betcha', partial-term governor Sarah Palin, it really is cold in Alaska.

Tuesday, January 31, 2012

Heat Records Demolish Cold Records for 13th Consecutive Month;
January Ends With Incredible Ratio of [Update] 29 to 1 in Contiguous U.S.

Feb. 1, AM Update: The National Climatic Data Center reports an additional 123 new high temperature records on January 31 (vs. 0 cold records). This brings the ratio for the month to nearly 22 to 1 and the ratio for the lower 48 states to 29 to 1. The chart has been updated.

Midnight Update: The record temperatures on January 30 extended into the Midwest, where Omaha tied its all-time January temperature record and several long-term daily records were smashed by as much as 10°. The National Weather Service reports:
New temperature records were set today, January 30th, 2012 across eastern Nebraska. Omaha's new record is 69 degrees, which breaks the previous record of 60 set in 1974. This also ties the all time high in January, which was reached January 25, 1944. In Lincoln, the new record high is 70, breaking the previous record of 60 set in 1931. And in Norfolk, the new record high is 67, breaking the previous record of 57 set in 1992.
Original post:
A very mild January 2012 is ending with more new high temperature records being set in the Mid Atlantic region and the Northeast. Washington Dulles has at least tied broken the daily record for January 31 with 66° (old record 65° in 1993). By mid afternoon, the 54° at Bridgeport CT exceeded the old record of 53° set in 1974. At Islip NY, where the climate history extends back only to 1986, the temperature of 52° before noon broke the old record of 51° set in 1988. The 63° at Georgetown DE exceeded by 3° the record of 60° in 1974.

The 63° at Atlantic City NJ tied the record from 1988 in a climate history which began back in 1874.

This is now the 13th consecutive month that new high temperature records have exceeded low temperature records in the U.S., since cold records eked out a ratio of 1.5 to 1 vs. heat records in December 2010. The preliminary reports from the National Climatic Data Center through January 30 show heat records crushing cold records by a ratio of 20.7 to 1, nearly as high as the incredible 22.2 to 1 last August. Without the 25% of total January cold records set in Alaska, the ratio for the contiguous 48 states is 27.5 to 1. With meteorological winter now two-thirds over, the ratio for the season as a whole is at 6.2 to 1.

Image (click to enlarge):
- Monthly ratio of daily high temperature to low temperature records set in the U.S. for December 2010 through January 30, 2012, seasonal ratio for summer and fall 2011, winter 2011-2012 to date, and annual ratio for 2011 and 2010
CapitalClimate chart from NOAA/NCDC data, background image © Kevin Ambrose (www.weatherbook.com). Includes historical daily observations archived in NCDC's Cooperative Summary of the Day data set and preliminary reports from Cooperative Observers and First Order National Weather Service stations. All stations have a Period of Record of at least 30 years.

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