Connect to USGS and find out if Kayaking is possible

grab-river-levels.bash

#!/bin/bash


#  MAIN MAP FOR AL:
#  http://maps.waterdata.usgs.gov/mapper/index.html?state=al
#  
#  02423414 LITTLE CAHABA RIVER AT CAH BEA RD NR CAHABA HTS AL    #Cahaba Beach Road
#           URL: https://waterdata.usgs.gov/nwis/uv?site_no=02423414
#           NOTE: Seems to drop about 3"/hour after peaking.
#
#  02423380 CAHABA RIVER NEAR MOUNTAIN BROOK AL                   # Piggly Wiggly @River Run
#           URL: https://waterdata.usgs.gov/nwis/uv?site_no=02423380
#           NOTE: Seems to drop about 4"/hour after peaking.
#
#  02423400 LITTLE CAHABA RIVER NR JEFFERSON PARK, AL.            # Bailey Road
#           URL: https://waterdata.usgs.gov/nwis/uv?site_no=02423400
#           NOTE: Seems to drop about 10"/hour after peaking.
#  
#  02423397 LITTLE CAHABA RIVER BELOW LEEDS, AL.                  #Leeds Park
#           URL: https://waterdata.usgs.gov/nwis/uv?site_no=02423397
#           NOTE: Seems to drop about 3.5"/hour after peaking.


DATE=$(date +"%Y%m%d %H%M%S")

#grab image:
# wget -O /tmp/3test.html "http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=02423380&parm_cd=00060&period=7"

#grab current values
echo -n "------ "
date
echo -n "Cahaba "
curl -L -s -d "site_no=02423380" -G  "http://waterdata.usgs.gov/nwis/uv"  | grep instantaneous | awk ' { a = $5; getline ; b = $5 ; print "CFS:"a" HEIGHT:"b } '
wget -O ./cahaba-CFS.png    "http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=02423380&parm_cd=00060&period=1" > /dev/null 2>&1
wget -O ./cahaba-HEIGHT.png "http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=02423380&parm_cd=00065&period=1" > /dev/null 2>&1

echo -n "Little Cahaba "
curl -L -s -d "site_no=02423414" -G  "http://waterdata.usgs.gov/nwis/uv"  | grep instantaneous | awk ' { a = $5; getline ; b = $5 ; print "CFS:"a" HEIGHT:"b } '
wget -O ./little-cahaba-CFS.png    "http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=02423414&parm_cd=00060&period=1" > /dev/null 2>&1
wget -O ./little-cahaba-HEIGHT.png "http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=02423414&parm_cd=00065&period=1" > /dev/null 2>&1

echo -n "Locust Fork "
curl -L -s -d "site_no=02455000" -G  "http://waterdata.usgs.gov/nwis/uv"  | grep instantaneous | awk ' { a = $5; getline ; b = $5 ; print "CFS:"a" HEIGHT:"b } '
wget -O ./locust-fork-CFS.png    "http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=02455000&parm_cd=00060&period=1" > /dev/null 2>&1
wget -O ./locust-fork-HEIGHT.png "http://waterdata.usgs.gov/nwisweb/graph?agency_cd=USGS&site_no=02455000&parm_cd=00065&period=1" > /dev/null 2>&1