Mesone t and Drought Update
Mesonet and Drought Update. What’s new? What’s new? What’s the current drought situation? What’s next?
Dec 21, 2015
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Mesonet and Drough
t Update
What’s What’s new?new?
What’s the
current drought situation
?
What’s next?
The new National Weather Center
is Oklahoma’s new Weather
Center
Two OSU Cowboys at OU
120 David L Boren Boulevard
Officed at Oklahoma Climatological
Survey
Derek Arndt Acting State Climatologist
OCS Computer Lab
NWC Auditorium
NWCAtrium
National Weather Center
Highway 9 and Jenkins Ave, Norman, Oklahoma
What’s new?
What’s the
current drought situation
?
What’s next?
2006ThrewMany
$500 MillionFarm Loss
2006 Farm Loss (Mark Hodges, Loss Mitigation,
10/18/06) Cotton $17,678,000
Hay $139,975,000
Peanuts $7,148,000
Rye $2,644,000
Sorghum $5,035,000
Soybeans $28,348,000
Wheat - Grain $204,540,000
Wheat - Grazing $101,500,000
TOTAL FARM LOSS ($519,978,000)
US Drought Monitor Categories
Category Description Possible Impacts
D0 Abnormally Dry Going into drought: short-term dryness slowing planting, growth of crops or pastures. Coming out of drought: some lingering water deficits; pastures or crops not fully recovered
D1 Moderate Drought
Some damage to crops, pastures; streams, reservoirs, or wells low, some water shortages developing or imminent; voluntary water-use restrictions requested
D2 Severe Drought
Crop or pasture losses likely; water shortages common; water restrictions imposed
D3 Extreme Drought
Major crop/pasture losses; widespread water shortages or restrictions
D4 Exceptional Drought
Exceptional and widespread crop/pasture losses; shortages of water in reservoirs, streams, and wells creating water emergencies
Rainfall - Last 30 Days
Available Water
• Rooting depth
• Soil type• Soil compaction
Available Water (inches)
Soil Type Water in
1 foot of soil Water in
2 feet of soil Water in
3 feet of soil Sand 0.96 1.98 2.94
Loamy Sand 1.22 2.44 3.66
Sandy Loam 1.44 2.88 4.32
Loam 1.80 3.60 5.40
Silt Loam 2.16 4.32 6.48
Silty Clay Loam 1.92 3.84 5.76
Clay Loam 1.80 3.60 5.40
Sandy Clay Loam 1.68 3.36 5.04
Silty Clay 1.56 3.12 4.68
Clay 1.44 2.88 4.32
Sandy Clay 1.22 2.44 3.66
Fractional Water Index
10-inch --- Jan 1, 2007
Fractional Water Index
FWI Low
FWI High
Soil and Plant Impact over Extended Periods
0.95 1.00 Saturated soil
0.75 0.95 Optimum water for plant growth
0.50 0.75 Limited plant growth
0.30 0.50 Plant wilting
0.10 0.30 Plant death
0.00 0.10 Bone dry
10” depthFWIJan 1 2007
24” depth FWIJan 1 2007
10” depthFWI
Oct 13 2006
24” depth FWI
Oct 13 2006
2-inch
10-inch
24-inch
30-inch
Stillwater, Fractional Water Index 11/10/06 to 12/10/06
Marshall - 10/16/05 to 12/15/05
OSU Variety Trial Average - 28 bushels
2-inch
10-inch
Lahoma - 10/16/05 to 12/15/05
OSU Variety Trial Average - 67 bushels
2-inch
10-inch
Jan 1 2007
Jan 1 2006
Jan 1 2005
FractionalWaterIndex10-inch
What’s What’s new?new?
What’s the
current drought situation
?
What’s next?
Climate Trends
Average Annual Precipitation (1895-2005)
28.79
47.99
33.93
0
10
20
30
40
50
60
Annual
Div#2-NW
Div#9-SE
State
Average Monthly Precipitation (1895-2005)
0
1
2
3
4
5
6
7
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Rain
fall in
in
ch
es
Div#2-NW
Div#9-SE
State
May Rainfall - Division 2
January Rainfall - Division 2
Looking ahead - Forecasts
Developing El Niño
Air Temperature Forecast
Wind Forecast
Precipitation Forecast
agweather.mesonet.org
Oklahoma Mesonet“Oklahoma’s Weather
Network”
StillwaterMesonet
Tower
Oklahoma Mesonet
Established 1994
• Air temperature
• Rainfall
• Relative humidity
• Soil moisture
• Soil temperature
• Solar radiation
• Station pressure
• Wind direction
• Wind speed
Mesonet measurements
--- Before Agweather data can be viewed, you must first download the WxScope program ---
WxScope download
Plan for
tough times!
Make the
most of good
times!
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