Presentations text content in February 2015 Summary
Slide1
February 2015 Summary
National Weather Service Detroit/Pontiac
Slide2Highlights
Detroit
Flint
Saginaw
2
nd coldest February and 5th coldest month on record10 lows below zero is second-most on record for February5 record low mins and 1 record low maxAverage temperature comparable to normal February values for Edmonton, AB and Caribou, ME
Coldest February and 2nd coldest month on record11 lows below zero is tied for most on record for February6 record low mins and 3 record low maxesLow of −25° on Feb 20 was lowest Feb temp of all time and tied for lowest temp of all timeAverage temperature comparable to normal February values for Regina, SK and Grand Forks, ND
Coldest February and 3
rd
coldest month on record
10 lows below zero is third-most on record for February
5 record low
mins
and 2 record low maxes
Average temperature comparable to normal February values for Regina, SK and Grand Forks, ND
Slide3Coldest Months of All Time (Avg. Temp°F)
RankMonthTemp1Feb 187512.22Jan 197712.83Jan 191213.14Jan 191813.25Feb 201514.16Feb 193414.87Jan 187515.38Jan 189315.49Feb 193616.010Feb 190416.1
Detroit
Flint
Saginaw
RankMonthTemp1Jan 197710.92Feb 201511.33Feb 197912.84Jan 196313.15Feb 197813.46Jan 199413.87Jan 198414.38Jan 200914.59Feb 196314.910Jan 197015.1
RankMonthTemp1Jan 19129.42Jan 191810.43Feb 201511.54Jan 196311.65Jan 199412.16Feb 197912.17Jan 192012.78Jan 197712.89Feb 191413.010Feb 196313.2
Records begin Jan 1874
Records begin Jan 1921
Records begin Jan 1912
Slide4Observed vs. Normal Feb TempsFor Selected Locations
OBSERVED (°F)
Detroit
FlintSaginawTemp14.111.311.5Departure from normal−14.0−13.5−13.0
NORMAL (°F)
CityTempFairbanks, AK−1.3Winnipeg, MB8.2Saskatoon, SK9.5International Falls, MN10.3Regina, SK10.9Grand Forks, ND12.0Caribou, ME14.1Edmonton, AB14.3Fargo, ND14.6Duluth, MN15.1
CityTempMarquette, MI15.5Sault Ste. Marie, MI17.6Bismarck, ND18.1Anchorage, AK20.2Green Bay, WI20.3Minneapolis, MN20.8Saginaw, MI24.5Flint, MI24.8Detroit, MI28.1Miami, FL70.2
Based on 1981
–2010
normals
. Canadian data obtained
from Environment Canada http://climate.weather.gc.ca/climate_normals/index_e.html#1981
Slide5Number of Feb. Days Below Zero
RankYearNum1187514220151021936102188510519857519827519797519347919146919056
Detroit
Flint
Saginaw
RankYearNum12015111197911320141031978105196396199686196786193689198271019946
RankYearNum119361221979113201510319341031914106196396191798192078191271020146
Records begin Jan 1874
Records begin Jan 1921
Records begin Jan 1912
Slide6−9°
−5°
7°
−13°
Annotated values indicate record low min or max values tied or broken in 2015
Daily Temps and Records - Detroit
−4°
−2°
Slide7−13°
−17°
−21°
−25°
−17°
2°
5°
11°
Annotated values indicate record low min or max values tied or broken in 2015
Daily Temps and Records - Flint
*
*
Feb 20 low of −25° is the coldest February temp on record and ties for the coldest temp of all time (Jan 18, 1976)
−17°
Slide8−13°
−15°
−9°
2°
4°
−13°
Annotated values indicate record low min or max values tied or broken in 2015
Daily Temps and Records - Saginaw
−9°
Slide9Other Cold Low Temperatures (°F)
Port Huron−26 Lapeer−25Caro−24White Lake−23Bad Axe−21Owosso−17Pontiac−17Midland−16Howell−16Adrian−13Monroe−13Port Hope−12Ann Arbor (UM)−11
Port Huron−29 Lapeer−29Caro−28White Lake−25Midland−24Bad Axe−23Owosso−21Adrian−20Pontiac−19Howell−17Port Hope−16Monroe−15Ann Arbor (UM)−15
FEB 16
FEB 20
Caro−21 Midland−19Owosso−15White Lake−14Bad Axe−14Port Huron−11Lapeer−11Howell−10Pontiac−9Monroe−8Ann Arbor (UM)−7Port Hope−6Adrian−6
FEB 23
Slide10Persistent Ridge/Trough Pattern
Slide11Persistent Ridge/Trough Pattern
February average temperature departure from normal
February average temperature ranking
Data from Southeast Regional
Climate Center http://www.sercc.com/perspectivesmap?region=conus
Slide12February Snowfall
Monthly
DetroitFlintSaginawObserved26.4”17.4”16.2”Rank7th snowiest11th snowiestT-17th snowiestDeparture from Normal+16.2”+6.6”+7.6”
Much of the snowfall occurred during the Feb. 1–2 storm, one of the largest on record for Detroit and Flint.
Feb 1
–2
Detroit
Flint
Saginaw
Observed
16.7”
9.2”
7.1”
Rank (overall)
3
rd
largest
22
nd
largest
NA
Rank (Feb)
Largest
6
th
largest
NA
Slide13Slide14Slide15Slide16Slide17Slide18
February 2015 Summary
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