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Home My WebLink About20051457 Ver 1_Re USGS streamflow and ground-water conditions in NC through Monday September 12.msg_20110913Strickland, Bev From: Patricia Tanner [Patricia.Tanner @noaa.gov] Sent: Tuesday, September 13, 2011 12:30 PM To: John C Weaver Cc: Linwood Peele; Ashley. E.Hatchell @usace. army. miI; Brian. Cullen @noaa.gov; Brian. Hai nes @ncdenr.gov; david.lane @ncdenr.gov; debra.owen @ncdenr.gov; eric.seymour @noaa.gov; gagalleh @duke - energy.com; garry_grabow @ncsu.edu; George. Mathews @noaa.gov; harold.m.brady @ncdenr.gov; jamie.kritzer @ncdenr.gov; jeff.orrock @noaa.gov; jim.prevette @ncdenr.gov; jucilene.hoffmann @ncdenr.gov; Lara.Pagano @noaa.gov; Michael .A.Young @saw02.usace. army. miI; Michael. Moneypenny @noaa.gov; mike.orbon @ncdenr.gov; neelufa.sarwar @ncdenr.gov; Peter. Corrigan @noaa.gov; Richard. Neuherz @noaa.gov; rwall @ncem.org; ryan_boyles @ncsu.edu; sarah.young @ncdenr.gov; Todd. Hamill @noaa.gov; Tom.Fransen @ncdenr.gov; tom.reeder @ncdenr.gov; tony_dorn @nass.usda.gov; Torey_Lawrence @nass.usda.gov; Vernon.Cox @ncagr.gov- Wayne.Munden @ncdenr.gov; woody. yonts @ncdenr.gov; Brian Fuchs; Allison.Wash @va.usda.gov; Kathleen Carroll; Darin Figurskey; Glenn Carrin; Mark Svoboda Subject: Re: USGS streamflow and ground -water conditions in NC through Monday, September 12 i would like to see the D2 area in NC /SC expanded to the east by at least one county in NC and 1/2 county in SC based on rivers and lack of rain. USDM archive (you can select North Carolina from the drop -down box near the top, a quick way to see the last two USDM releases): htto:H drouaht.unl.edu /dm /archive.html -- Observed precipitation -- Sources of precipitation totals are available from the following: (1) USGS rainfall totals (sorted by county) for the last 7 days at http : / /waterdata.usgs.gov /nc /nwis /current ?tvpe = precip &group kev= county cd (2) State Climate Office of North Carolina at http : / /www.nc - climate.ncsu.edu /mpe departure/ (3) NOAA NWS's Advanced Hydrologic Prediction Service at http://water.weather.gov/preci shown below pulled from the NOAA NWS's Advanced Hydrologic Prediction Service at http: / /water.weather.gov /precip/ North Carolina: Current 7 —Day Observed Precipitation Valid at 9/12/2011 1200 UTC— Created 9112/11 23:55 UTC Fil -- Streamflow -- 4: I � •* 1 111111111 Current conditions are depicted as real -time, 7 -day, 14 -day, and 28 -day flows available in the WaterWatch series of maps at: http://waterwatch.usgs.gov/classic/?m=real&r=nc&w=real%2Cmap Current conditions... Tuesday, Septenber 13, 2011 08 :30ET Last week's conditions... Tuesday, September 06, 2011 08 :30ET WIM MUSIGS When viewing the USGS WaterWatch streamflow information, you can hover your cursor over a site and a pop -up box appears with various pieces of information, including the percentile for the current streamflow AND the current percentage of mean and median for the calendar date. Highlighting current flows (September 13 morning) at some selected gaging stations (obtained from http : / /waterdata.usgs.gov /nc /nwis /current / ?type =flow ): Site number Explanation - Percentile classes .. ., 14k,", Current flow Lo so >90 � - �: High Idol- ranked j N ch bedo s � w Be lbw P trr� al Ah,,we % asU) a, , mar€ -- normal When viewing the USGS WaterWatch streamflow information, you can hover your cursor over a site and a pop -up box appears with various pieces of information, including the percentile for the current streamflow AND the current percentage of mean and median for the calendar date. Highlighting current flows (September 13 morning) at some selected gaging stations (obtained from http : / /waterdata.usgs.gov /nc /nwis /current / ?type =flow ): Site number Site name (and County) Flow Sep 06 Current flow (% of) Median Sep 13 02053200 Potecasi Creek near Union (Hertford) -- 760 cfs 340 cfs 43040 7.9 cfs 02106500 Black River near Tomahawk (Sampson) -- 281 cfs 158 cfs 57% 265 cfs 02085500 Flat River at Bahama (Durham) -- 2.8 cfs 4.9 cfs 41% 12 cfs 02096960 Haw River near Bynum (Chatham) -- 105 cfs 75 cfs 33% 227 cfs 02115360 Yadkin River at Enon (Yadkin) -- 1,800 cfs 875 cfs 720 1,220 cfs 02152100 First Broad River near Casar (Cleveland) -- 88 cfs 18 cfs 44% 41 cfs 03451500 French Broad River at Asheville (Buncombe) -- 2,530 cfs 748 cfs 720 1,040 cfs 03550000 Valley River at Tomotla (Cherokee) -- 307 cfs 49 cfs 730 67 cfs 4: ! 4 Visit the WaterWatch pages at http: / /waterwatch.usgs.gov /classic / ?r =nc to get the most recent data for sites of interest. 4 Durations plots for selected individual USGS stations can be accessed at http: / /nc.water.usgs.gov /drought /duration.html The OVERALL 7 -day average flows by HUC map (http:Hwaterwatch.usgs.gov /classic / ?m= pa07d &r= nc &w =pa07d nwc %2Cmap) are depicted in the image below: Monday, Septenber 12, 2011 To help provide more detail by major basin, the BELOW NORMAL 7 -day average flows by HUC map (http: / /waterwatch.usgs.gov /classic /index.php ?map type =drvw &state =nc) are depicted in the image below: Monday, September 12, 2011 As of September 11 (Sunday), the graph of 7 -day flow percentiles shown below indicates 12 percent of sites across North Carolina have percentiles for 7 -day average flows falling below the 25th percentile for the calendar date. And 4 percent of sites across North Carolina are shown as having 7 -day average flows below the 10th percentile or reaching new minimum for calendar date. Compared to September 04 (Sunday), the current values indicate substantial improvements in overall streamflow conditions during course of the past week, considering 62% of sites across the state were below the 25th percentile and 41 % of sites were below 10th percentile and /or reaching new minimum for the calendar date. Below is a graph developed from the 7 -day average flow summary table available at: http: / /waterwater.usgs.gov/ classic / ?m= pa07d &r= nc &w= paO7d %2Ctable i i If i September Less than 25th percentile Percentage of sites in North Carolina with 7 -day t Less than 10th percentile indicated percentile range or lowe New ruin forthe day October to -, December January February ¢. 2010 2010 2010 2011 2011 Date Another measure of the streamflow conditions is available from maps of median percentiles for 7 -day average flows for the previous 7 -, 14- 30 -, 60 -, and 90 -day periods updated through September 12 (Monday). These maps are intended to provide some kind of "long- term" index of the streamflow conditions (not available through the USGS WaterWatch pages) that is mapped according to the classification scheme for streamflow used by the U.S. Drought Monitor. Map images (via the above URL) showing the median percentiles for 7 -day average flows for previous 7 and 30 days are shown below. http: / /nc. water. usgs .gov /drought/dm- streamflow.html L al 13 Previous 30 days Monday, September 12, 2011 0 u II- ,; Explanation Unregulated Regulated No - No Drought ( >30 percentile) DO - Abnormally Dry (21 to 30 percentile) 0 ❑ D1 - Moderate Drought (11 to 20 percentile) D2 - Severe Drought (6 to 10 percentile) D3 - Extreme Drought (3 to 5 percentile) IF D4 - Exceptional Drought (0 to 2 percentile) a IM n/d - Not determined 0 ❑ s The following ArcMap screenshot shows the change in the median percentiles of 7 -day average flows for 7 -day period from last week (with last week's U.S. Drought Monitor in the background). In other words, at a given site, take last week's median percentile and compare it to this week's median percentile. Sites in red indicate a decrease in the median percentile from last week to this week (suggesting a decline in streamflow). Sites in blue indicate an increase in the median percentile from last week to this week (suggesting an improvement decline in streamflow). The size of the circles indicates the general range in percentile increase or decrease (note legend to left of the map). File Edit View Bookmarks Insert Selection Tools Window Help --- ____ ____ _____mmmm________ 23 61 & 10 rc r + 1:3,540,016 0 A ° ' * Editor 11111,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,; X -!, Layers -1 ❑Q Automated DM maps (short string) ❑Q (weekly change in 7 -day median percentile) gall other values > WeeHy_c_i nid Greater than 50 percentile increase 25 to 50 percentile increase Display I Source Selection Drawing El — A ;6 Arial ��_0___ -- Ground Water -- B I U A � - Please visit the Climate Response Network page at http: / /groundwaterwatch. usqs. gov /StateMapsNet.asp ?ncd= crn &sc =37 (map shown below) for more information on 9 L 10 to 25 percentile increase 5 to 10 percentile increase 0 to 5 percentile increase i No percentile change 0 to 5 percentile decrease 5 to 10 percentile decrease 10 to 25 percentile decrease 25 to 50 percentile decrease Greater than 50 percentile decrease Display I Source Selection Drawing El — A ;6 Arial ��_0___ -- Ground Water -- B I U A � - Please visit the Climate Response Network page at http: / /groundwaterwatch. usqs. gov /StateMapsNet.asp ?ncd= crn &sc =37 (map shown below) for more information on 9 L ground -water conditions at selected USGS observation wells in North Carolina. ak tiNES 5%rRGINIA ii i4lte V' Uliarsauu ta�nt� a 17 . F Lagan Tappahannock Atlantic Beckle i Arta Salud'a a J ham ° ¢White Mane Beach Well Unio L' bUl „a 60?' co1fonia 'Ef!9h � E,ashille `P askin onok F� gr# Ner >� Virginia 7 Explanation - Percentile class �. ......ee __ New <10 1024 25-75 75-90 >90 New Not Bel' ..... — - ....... " Low hrluah Below Belaw Normal lave hrluGl l aved High Ranked Shown below are the hydrographs at four selected wells across North Carolina... real -time page for USGS ground water data in NC is available at http: / /waterdata.usgs.gov /nc /nwis /current ?tvpe =qw (MOUNTAINS) NC -144 at Blantyre in Transylvania County (http: / /waterdata.usgs.gov /nc /nwis /dv / ?site no= 351808082374302 &agency cd =USGS &referred module =sw) 10 11 USES 351808082374302 TR -065 HC -144) AT BLANTYRE, HC (RE OLITH 30.00 2117,00 0 30,50 S GF 2116,50 Ly } 31.00 LO z 2116.00 } ;F Qy L 'i o 31.50 +4 FI 2115.50 11 GL] 4J � G} r-I i 32.00 CU +} 2115 +00 L i C G 32.50 C L Aug Aug Sep Sep ca 20 27 03 10 2011 2011 2011 2011 - - -- Provisional Data Subject to Revision - - -- 0 Measured depth to water level — Depth to water level 11 (WESTERN PIEDMONT) NC -193, Piedmont RS near Barber in Rowan County (http: / /waterdata .usgs.gov /nc /nwis /dv / ?dd cd =01 72019 00003 &format =imq default &site no= 354057080362601 &set to qscale v =0 &begin date = 20070319) 12 USES 351 0808237430 TR -065 (SIC -144) AT BLANTYRE, HC (RE OLITH a 2120.0 m 27.0 Q. a, 28.0 2119.0 0 29.0 2118.0 0 z Do ' c 30.0 2117.0 t > M r 31.0 2116.0 r °� 0 32.0 2115.0 4 4J C6 L Gi Q 0 33.0 2114.0 +} M >- J r H a 34.0 � L Nov Jan Mar Nay Jul Sep 2010 2011 2011 2011 2011 2011 — Daily nean depth to water level Period of provisional data Period of approved data (WESTERN PIEDMONT) NC -193, Piedmont RS near Barber in Rowan County (http: / /waterdata .usgs.gov /nc /nwis /dv / ?dd cd =01 72019 00003 &format =imq default &site no= 354057080362601 &set to qscale v =0 &begin date = 20070319) 12 13 SGS 3540 x'0803 01 Rte -149 NC -193) PIEDMONT RS 1 NR BARBER (RE OLIT m C 8 90 - 669.10 0 9.00 666.00 y 4 9.1$ 668,90 Lo �F z p m 9.2$ 668.80 0 Do G] L m Q 9.30 668.70 L ° 9.40 668.60 CU L � C C p 9.5$ 668.50 7 Aug Rug Sep Sep ca 20 27 03 10 2011 2011 2011 2011 - - -- Provisional Data Subject to Revision - - -- 0 Measured depth to water level — Depth to water level 13 (EASTERN PIEDMONT) NC -126 at Chapel Hill in Orange County ( http:/ /waterdata.usgs.gov /nc /nwis /dv/ ?site no= 355522079043001 &agency cd =USGS &referred module =sw) SGS 354057080362601 Rte -149 (SIC -193) PIEDMONT RS 1 NR BARBER (RE OLIT a 672 +0 1 6 +0 -069 0 (RE t LITH) CU � 6.5 671 +5 4J 465 +88 � F1 7 +9 Q 671 +6 G 465 +75 45 +88 } L) 465 +78 z ' C 7 +5 670 +5 L 0 45 +85 8 +0 Qb 670 +0 r m 'i o 45 +98 �} L 8 +5 669 +5 -4 L Q a CU G 45 +95 a= ° 9 +0 465 +55 669 +0 s -J L +} r H �V 0 a 9 +5 L � 668 +5 L Now Jan Mar May Jul Sep 2019 2011 2911 2011 2011 2911 46 +95 — Daily nean depth to water level Period of provisional data Period of approved data 465 +45 C (EASTERN PIEDMONT) NC -126 at Chapel Hill in Orange County ( http:/ /waterdata.usgs.gov /nc /nwis /dv/ ?site no= 355522079043001 &agency cd =USGS &referred module =sw) 14 USGS 355522079 143001 OR -069 (NC-126) AT CHAPEL HILL, H (RE t LITH) 45 76 + 465 +88 � F1 Q 45 +75 465 +75 45 +88 465 +78 Lo 0 45 +85 465 +65 Qb Qy L m 'i o 45 +98 465 +68 L Q Gi DO 45 +95 465 +55 °1 'i � L +} 46 +$$ �V 465 +58 GU L � � 46 +95 465 +45 C L Aug Aug Sep Sep ca 29 27 93 19 2911 2911 2911 2911 - - -- Provisional data Subject to Revision - - -- Measured depth to water level — Depth to water level 14 (COASTAL PLAIN) NC -160 near Simpson in Pitt County ( http:/ /waterdata.usgs.gov /nc /nwis /dv/ ?site no= 353219077153801 &agency cd =USGS &referred module =sw) 15 USGS 3555 079043001 OR -069 (NC -126) AT CHAPEL HILL, H (RE t LITH) a 42.6 469.5 w cu cu .0 42.5 469.0 Q. S Q 43. 468.5 0 S W 43.5 468.8 d > } z 44.9 467.5 L L O J }' to 44.5 467.8 +4 r � 1 45.8 466.5 m L r-I C6 45.5 466.$ L G M >- 46.9 465.5 J 10 H r 0 CE G 46.5 465.8 L Now Jan Mar May Jul Sep 2019 2911 2911 2911 2911 2011 — Daily nean depth to water level Period of provisional data Period of approved data (COASTAL PLAIN) NC -160 near Simpson in Pitt County ( http:/ /waterdata.usgs.gov /nc /nwis /dv/ ?site no= 353219077153801 &agency cd =USGS &referred module =sw) 15 16 USGS 353 19077153801 PI -532 (NC-160) NR SIMPSON, N URFI IAL) 1.9 55 +$ � s O 2.9 54.9 � rn L *' G] 3.0 53 +$ 4.9 L7 x a� 52.9 c, r-I 5 +� 51.9 O 0 L L B +$ 59'$ CU ai +. 7.9 } CU -1 s 49.9 L 8.0 8 +$ 48.9 CU s L 9.$ _ � c G Aug Aug Sep Sep o 29 27 93 19 L ro 2911 2911 2911 2011 - - -- Provisional data Subject to Revision - - -- - Depth to water level Value exceeds "standard difference" threshold. — Lowest recorded water level prior to MY2911 (8.97 ft Oct 23,24, 2997) 16 17 USGS 353 19077153801 PI -532 (NC-160) NR SIMPSON, N URFI IAL) O 4ti 1 +$ 5555 +9 Q- 2 ry �y .0 54 +$ S 41 o% 3 +0 +$ 52 +$ 41 0 55 +0 51 0 +} +$ i a 6 +9 CU 59 +$ }y 7 m -W +9 +9 L C6 p 8 Gi P +9 48 +9 s 9 H o +$ Now Jan Mar May Jul Sep C L 2918 2911 2911 2911 2911 2911 0 — Daily nean depth to water level Period of approved data Period of provisional data — Lowest recorded water level prior to MY2911 (8 +97 ft Oct 23,24, 2997) 17