National Weather Service United States Department of Commerce

Abnormally Dry Conditions
End for the Rest of the Area 

Updated on Thursday, September 26, 2019

 

Summary:

 

Between 1.5 and 4 inches of rain fell across Floyd County in northeast Iowa.  This rain ended the abnormally dry (D0) conditions for this county.  This means that no areas in the La Crosse Hydrologic Service Area are currently abnormally (D0) dry or in drought (D1-D4).

U.S. Drought Monitor Summary:

 

In the September 24 release of the U.S. Drought Monitor, abnormally dry (D0) to moderate (D1) drought conditions were seen from east-central Illinois northeast into Michigan's Thumb area, southern Illinois, southern Indiana, and west-central Ohio.

Abnormally Dry (D0) conditions were found in east-central and southeast Iowa, far northern Lower Michigan, and eastern and southern Ohio.

Note: The data cutoff for Drought Monitor maps is Tuesday at 7 a.m. Central Daylight Time.

U.S. Drought Monitor for September 24, 2019 

State Drought Statistics

Iowa Drought Statistics

Minnesota drought statistics

Wisconsin Drought Statistics

Iowa

Minnesota

Wisconsin


Local Area Affected:

Recent rains have ended the abnormally dry (D0) conditions for Floyd County in northeast Iowa. This means that no areas in the La Crosse Hydrologic Service Area are currently abnormally (D0) dry or in drought (D1-D4).

La Crosse WI CWA Latest Drought Information

State/Local Government Actions:

No known actions are taking place at this time.

Climatological Summary:

From July 1 through September 24, 2019, between 11 and 17 inches of rain has fallen in Floyd County.  This is up to 6 inches wetter-than-normal.  Due to this, the abnormally dry (D0) conditions have ended there.  This means that no areas in the La Crosse Hydrologic Service Area are currently abnormally (D0) dry or in drought (D1-D4).

Here is a map of the precipitation deficits & surpluses during this time period.

Wisconsin rainfall deficits July 1 through September 24, 2019.

The following tables show the precipitation totals and deficits from July 1 through September 24, 2019.

Northeast Iowa, Southeast Minnesota, & Southwest Wisconsin
Precipitation Deficits & Surpluses

Location
Rain Total
(July 1 to
September 24, 2019)
Departure
from Normal
Charles City, IA (Floyd County) 11.76" +0.19"
Osage, IA (Mitchell County) 17.34" +5.66"
St. Ansgar, IA (Mitchell County) 17.65" +6.17"

 

The U.S. Drought Monitor is a weekly collaborative effort between a number of federal agencies including NOAA/NWS, U.S. Department of Agriculture and the National Drought Mitigation Center. Details and explanations of the Drought Monitor can found at the web site:

http://droughtmonitor.unl.edu/

The categories of drought are defined as follows:

Abnormally Dry (D0)
- Going into drought: short-term dryness slowing planting, growth of crops or pastures; fire risk above average. Coming out of drought: some lingering water deficits; pastures or crops not fully recovered.

Moderate Drought (D1) - Some damage to crops, pastures; fire risk high; streams, reservoirs, or wells low, some water shortages developing or imminent, voluntary water use restrictions requested.

Severe Drought (D2) - Crop or pasture losses likely; fire risk very high; water shortages common; water restrictions imposed.

Extreme Drought (D3) - Major crop/pasture losses; extreme fire danger; widespread water shortages or restrictions.

Exceptional Drought (D4) - Exceptional and widespread crop/pasture losses; exceptional fire risk; shortages of water in reservoirs, streams, and wells, creating water emergencies.


Potential Evapotranspiration Rates:

Disaster & Drought Assistance:

Other Drought Web Sites:

Drought ACIS:

This tool allows you the ability to explore data related to drought from the Regional Climate Centers (RCCs).  You can look at length or periods without rain, temperature data, and more.  Click on the logo below to gain access to this tool.

http://drought.rcc-acis.org/

River and Stream Flow Conditions:

As of September 17, the river and stream flows were near to above-normal across northeast Iowa. 

 

 

Hourly and forecast river stages out to 90 days can be found at:

Additional Current stream and river stages may be viewed at:

An interactive table of sites which are at or near record flows can be found at:

Agricultural Impacts:


Iowa:

Another week of heavy rainfall across Iowa allowed just 3.3 days suitable for fieldwork statewide during the week ending September 22, 2019, according to the USDA, National Agricultural Statistics Service. Fieldwork activities included harvesting hay and seed corn, chopping silage, and seeding cover crops.

Topsoil moisture condition was rated 1 percent very short, 7 percent short, 75 percent adequate and 17 percent surplus. Precipitation this past week helped increase topsoil moisture levels in all districts; however, the Southeast District remains the driest with a topsoil moisture rating of 36 percent short to very short. Subsoil moisture condition was rated 2 percent very short, 9 percent short, 79 percent adequate and 10 percent surplus.

Nearly all of the corn crop was in or beyond the dough stage at 97 percent complete statewide, over 2 weeks behind the 5-year average. Eighty-two percent of the crop has reached the dented stage or beyond, 17 days behind last year and 12 days behind average. Eighteen percent of corn reached maturity, 19 days behind last year and 2 weeks behind average. There were a few reports of farmers in the central Iowa district that harvested corn for grain this past week. Corn condition rated 65 percent good to excellent. Sixty-five percent of the soybean crop has begun coloring or beyond, 11 days behind last year and 8 days behind average. Twenty-two percent of the crop has begun dropping leaves, 12 days behind last year and 9 days behind average. There were also a few reports of soybeans being harvested in the west-central and central Iowa districts. Soybean condition rated 62 percent good to
excellent.

The third cutting of alfalfa hay reached 87 percent, just over a week behind average. Pasture condition rated 43 percent good to excellent. Continuous rainfall this past week caused feedlots to become muddy.

NASS Soil Moisture Conditions in Iowa & Minnesota as of September 22, 2019

State

Region

Soil
Percent of Moisture
Very Short
Short
Adequate
Surplus
Iowa  North-Central Top Soil
0
1 87
12
Sub Soil 0 3 87 10
Northeast Top Soil 0 4 79 17
Sub Soil 0 2 87 11

 

Soil moisture supply measures how much moisture is present in cropland topsoil during the week. Soil moisture is reported as a percentage. The categories very short, short, adequate and surplus must add up to 100%.

Very Short - Soil moisture supplies are significantly less than what is required for normal plant development. Growth has been stopped, or nearly so, and plants are showing visible signs of moisture stress. Under these conditions, plants will quickly suffer irreparable damage.

Short - Soil dry.  Seed germination and/or normal crop growth and development would be curtailed.

Adequate - Soil moist.  Seed germination and/or crop growth and development would be normal or unhindered.

Surplus - Soil wet.  Fields may be muddy and will generally be unable to absorb additional moisture.  Young developing crops may be yellowing from excess moisture.

The map below lists the Agricultural Districts in southeast Minnesota, western Wisconsin, and northeast Iowa.

Agricultural Divisions

For additional information on agriculture impacts may be viewed from the:

Fire Danger Hazards:

As of the morning of September 24, low fire danger was reported across northeast Iowa.

As a reminder, citizens should always check with local officials in their area before undertaking any outside burning.  Citizens are liable for damages and suppression costs of any wildfire they may start.

Description of Fire Danger Ratings

For updated DNR Fire Conditions consult the following Web Sites:

The Keetch-Byram Drought Index (KBDI) is a drought index that is specifically related to fire potential. The KDBI is broken into four categories which indicate the susceptibility of ground fuels to fire danger. Below are the four categories and a brief description of each.

Keetch-Byram Drought Index (KDBI)
KBDI Value
Description of Fire Potential
0 to 200
Low - Wet with little danger of fire initiation
201 to 400
Moderate - Drying occurring with some fire danger
401 to 600
High - Ground cover dry and will burn readily
601 to 800
Extreme - Dead and live fuels will burn readily

KBDI and Dead Fuel Moisture data can be found through the:

Burn Bans:

Precipitation/Temperature Outlooks:

From September 26 through October 1, both temperatures and precipitation will average above-normal.   During this time frame, the daily average temperatures range from 52 to 57 degrees and the normal precipitation is around 6 tenths of an inch. 

Beyond this time frame, the 8 to 14-day forecast (October 2-8) from the Climate Prediction Center (CPC) calls for enhanced chances of above-normal temperatures and equal chances of wetter-than-normal precipitation.  During this time frame, the daily average temperatures range from 49 to 54 degrees and the normal precipitation is around 6 tenths of an inch. 

The CPC seasonal outlook from November 2019 through January 2020 has enhanced chances of above-normal temperatures and equal chances of wetter-, near-, and drier-than-normal precipitation for the Upper Mississippi River Valley.

Below are the seasonal outlooks for the next year.

Seasonal Temperature Outlooks

Precipitation Outlooks

Temperatures

Precipitation

For updated temperature and precipitation probabilities consult the following Climate Prediction Center (CPC) Web Sites:

NCEP's CFSv2 (Coupled Forecast System Model Version 2):

Questions or Comments:

If you have any questions or comments about this drought information please contact the NWS La Crosse at:

E-mail: nws.lacrosse@noaa.gov
Telephone: 608-784-8275

The Climate focal point at the NWS La Crosse is Jeff Boyne.

Other Contacts:

Local Agricultural Impacts:

State climate impacts: