Local weather and forecast by
"City, St" or zip code |
|
Search
by city or zip code. Press enter or select the go button to submit request
|
Moderate to Severe Drought
Conditions Return
Montra Lockwood, Service
Hydrologist
|
The latest
Drought Monitor and Palmer Drought Severity Index show moderate
to severe drought conditions have returned across the southern
half of Louisiana. Moderate drought conditions exist
across Southeast Texas. High pressure at the surface and aloft
has become re-established over the region, pushing storm systems
north of the area.
|
|
Click image below for larger version
 |
|
While rains earlier this year caused the drought to subside,
extremely dry conditions have returned. In fact, the last
significant rain event across Southwest Louisiana and Southeast
Texas was Hurricane Rita in late September.
Although some
locations have occasionally experienced localized heavy rains
during the past 12 months, Rita was actually the only
significant widespread rain event during this time.
The
following table shows monthly totals and departure
from normal for each month since last April, as well as the
12-month totals, departure from normal and percentage of normal:
|
|
|
Lake Charles |
Lafayette |
New Iberia |
Alexandria |
Beaumont |
Apr '05
DFN |
1.16
-2.48 |
1.60
-3.12 |
1.46
-2.44 |
2.84
-2.10 |
0.88
-2.96 |
May '05
DFN |
3.73
-2.33 |
1.11
-4.20 |
2.44
-2.26 |
1.17
-4.18 |
2.69
-3.14 |
Jun '05
DFN |
1.63
-4.44 |
2.91
-3.15 |
3.47
-2.35 |
1.26
-3.62 |
1.83
-4.75 |
Jul '05
DFN |
5.59
+0.46 |
3.16
-3.49 |
7.42
-0.03 |
3.02
-1.16 |
10.31
+5.08 |
Aug '05
DFN |
3.18
-1.67 |
3.27
-1.71 |
2.33
-4.15 |
2.23
-2.12 |
3.22
-1.63 |
Sep '05
DFN |
8.74
+2.79 |
7.15
+1.85 |
8.68
+3.27 |
2.17
-1.83 |
8.89
+2.79 |
Oct '05
DFN |
1.35
-2.59 |
0.74
-3.28 |
0.43
-3.56 |
0.60
-4.22 |
1.20
-3.46 |
Nov '05
DFN |
2.40
-2.21 |
3.69
-0.95 |
0.68
-0.84 |
4.07
-1.96 |
1.87
-2.42 |
Dec '05
DFN |
3.92
-0.68 |
6.20
+0.69 |
2.26
-2.94 |
3.80
-2.59 |
2.16
-3.09 |
Jan '06
DFN |
1.92
-3.60 |
3.29
-2.96 |
0.68
-3.74 |
4.07
-2.09 |
1.87
-3.82 |
Feb '06
DFN |
2.73
-0.55 |
4.71
+0.49 |
3.31
-0.88 |
6.28
+1.50 |
1.82
-1.53 |
Mar '06
DFN |
0.19
-3.35 |
0.15
-4.36 |
0.09
-4.07 |
3.53
-2.25 |
1.43
-2.32 |
| |
|
|
|
|
|
12-mon
DFN |
36.54
-20.65 |
37.98
-24.19 |
35.55
-23.99 |
34.77
-26.62 |
38.64
-21.25 |
|
%norm |
64 |
61 |
60 |
57 |
65 |
|
DFN=Departure from Normal
%norm=Percentage of Normal |
|
|
This March was the 2nd driest on record for Lake Charles,
Lafayette and New Iberia. And so far in April, many locations
are on track for another record dry month. Most locations
have received less than one- tenth of an inch of rain.
|
|
Fire Danger Impacts
Despite the extremely dry conditions, fire danger remains low. The
Keetch-Byram Drought Index ranges from 200 to 400, and no
parishes or counties have burn bans in effect at this time. However
if no rain occurs soon, the fire danger will increase as
evaporation increases in response to the longer days.
|
Click image below for larger version
 |
|
Agricultural Impacts
Short-term crop moisture continues to be reduced with increased
evaporation. Soil moisture is currently about 1 1/2 to 4 inches
below normal. These below normal levels have been maintained for
the past 12 months, which has resulted in some crop damage.
Currently, most crops are rated in fair condition.
Another effect
of the drought has been a sharp reduction in crawfish production
in south Louisiana, estimated at 70 percent. According to
crawfish farmers, salt deposited by Rita is harming crawfish
ponds and rain is needed to flush out the salt water. In
addition, low river levels have reduced crawfish numbers.
|
|
Hydrologic Impacts
Reservoir levels are running about 1 to 3 feet below normal pool
levels at Sam Rayburn Reservoir and Steinhagen Lake. Levels are
about 4 feet below normal at Toledo Bend Reservoir.
Streamflows
on rivers across Southwest Louisiana and Southeast Texas are
extremely low. Nearly all river locations are experiencing
streamflows less than 10 percent of normal, with some at
all-time low levels.
Outlook
No rain is expected over the next 5 to 7 days as high pressure
remains in control. medium range forecasts through late April
indicate near normal temperatures and precipitation. Current
long range outlooks though the end of June indicate above normal
temperatures and below normal precipitation.
La Nina
conditions continue in the tropical Pacific and are expected to
gradually weaken over the next 3 to 6 months. This typically
results in above normal temperatures and below normal
precipitation for the region. However, this is balanced by the
potential for an active tropical season which may result in
beneficial rains should a tropical system affect the area.
|
Click image below for larger version
 |
|
For further information on the drought, please visit the
following sites:
NOAA Drought Information Page
http://www.drought.noaa.gov
Climate
Prediction Center
http://www.cpc.noaa.gov |
Click here for the previous Drought Statement
|
|