Dangerous heat will persist over portions of interior California, the Great Basin, and the northern Rockies through Thursday. Heat will gradually spread into the northern Plains today. Across the western Gulf Coast, heavy to excessive rainfall will persist through mid-week. Additionally, the Southwest Monsoon will continue to bring a flash flooding threat to the Four Corners Region this week. Read More >
Overview
On the morning of June 7th, an upper low was centered over the Mississippi Valley, with a broad upper trough extending into VA/NC. At the surface, a frontal boundary was very slowly moving south through the region. There was a easterly component to the flow from 850 mb down to the surface (mainly along and north of the frontal boundary), while the mid-upper level flow was largely out of the SW. Deep layer moisture was already in place, with Precipitable Water (PW) values of around 2". Winds were out of the SW across southern VA/NC, while winds were E-NE north of Interstate 64. There was still plenty of low-level moisture in place immediately N of the boundary (dewpoints were still around 70° at 12z). While a few showers were ongoing during the mid-morning hours on 6/7, the heaviest rainfall was still a few hours away.
The combination of daytime heating, the frontal boundary, and a series of vorticity maxima riding along the aforementioned upper trough allowed for showers to increase in coverage/intensity by midday-early afternoon. Since the flow was fairly weak from the surface to the mid-levels, showers/t-storms that did develop moved very slowly (especially N of the boundary). Looking at the mesoanalysis, it is important to note that there was some modest instability even in areas immediately north of the boundary at 18z/2 PM. The first series of Flash Flood Warnings were issued in the Richmond area in response to some areas receiving 3 inches of rain in less than an hour...due entirely to t-storms that developed/maintained themselves N of the boundary. Shortly after 18z/2 PM, additional showers/t-storms developed along the frontal boundary as it moved southward through SE VA. This second area of showers/t-storms persisted through the early evening hours, prompting another round of Flash Flood Warnings (and of course numerous reports of flooding). Two areas that were especially hard hit by flooding were Norfolk/NE Chesapeake as well as areas right by our office in Wakefield.
The rain diminished in intensity (although there were still areas of moderate-heavy rain) during the evening hours due to the combination of the loss of daytime heating/frontal boundary moving south of the CWA. Despite this, some areas still recorded 1" of rain during the overnight hours and there were Flood Advisories in effect for areas in/around Wakefield into the early morning hours.
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| 24 Hour Radar Estimated Rainfall and Selected Observations. Note...The radar estimated rainfall did not pick up on some of the locally higher amounts (e.g 6" near Ashland). |
Flooding
Hydrographs
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| South Anna River Near Ashland | Pamunkey River near Hanover | Nottoway River near Stony Creek |
Virginia Diner Flooding Photos
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Radar
Selected Radar Images
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| 17z/1 PM Radar and Warnings | 18z/2 PM Radar and Warnings | 19z/3 PM Radar and Warnings | 20z/4 PM Radar and Warnings |
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| 21z/5 PM Radar and Warnings | 22z/6 PM Radar and Warnings | 23z/7 PM Radar and Warnings | 00z/8 PM Radar and Warnings |
Rainfall Reports
Public Information Statement National Weather Service Wakefield VA 1013 AM EDT Sat Jun 8 2019 ...SELECTED PRECIPITATION REPORTS FROM THE PAST 24 HOURS... Location Amount Time/Date Provider ...North Carolina... ...Chowan County... Edenton 13.3 NNW 1.19 in 0800 AM 06/08 COCORAHS Edenton 12.8 NNW 1.12 in 0700 AM 06/08 COCORAHS ...Gates County... Corapeake 1.63 in 0932 AM 06/08 CWOP ...Northampton County... Henrico 0.4 S 2.67 in 0800 AM 06/08 COCORAHS Conway 0.3 W 2.05 in 0700 AM 06/08 COCORAHS Conway 1.88 in 0930 AM 06/08 CWOP ...Pasquotank County... Elizabeth City 2.08 in 0940 AM 06/08 AWS Elizabeth City 3.5 NNW 1.19 in 0630 AM 06/08 COCORAHS ...Perquimans County... Hertford 1.37 in 0933 AM 06/08 CWOP ...Virginia... ...Amelia County... Amelia Courthouse 1.10 in 0940 AM 06/08 AWS ...Caroline County... Ruther Glen 1.7 ENE 1.52 in 0700 AM 06/08 COCORAHS Hanover 3.0 N 1.11 in 0700 AM 06/08 COCORAHS ...Charles City County... Charles City 4.1 SE 1.35 in 0800 AM 06/08 COCORAHS ...Chesterfield County... Midlothian 0.6 NE 3.39 in 0700 AM 06/08 COCORAHS Bon Air 3.15 in 0614 AM 06/08 AWS Midlothian 3.00 in 0850 PM 06/07 Public Richmond 6.4 W 2.36 in 0500 PM 06/07 COCORAHS Chester 6.6 E 1.64 in 0500 AM 06/08 COCORAHS Midlothian 4.7 SSW 1.11 in 0700 AM 06/08 COCORAHS Richmond Chester 1.06 in 0923 AM 06/08 AWOS ...City of Chesapeake... 2 SW Cradock 4.50 in 0930 PM 06/07 Public Chesapeake 4.08 in 0820 AM 06/08 CWOP Chesapeake 3.8 NNW 3.55 in 0800 AM 06/08 COCORAHS Greenbrier 2.55 in 0940 AM 06/08 AWS Chesapeake 3.5 NE 1.54 in 0700 AM 06/08 COCORAHS Chesapeake 1.8 NE 1.40 in 0700 AM 06/08 COCORAHS Chesapeake 7.9 NE 1.05 in 0600 AM 06/08 COCORAHS ...City of Emporia... Emporia 1 WNW 1.39 in 0645 AM 06/08 COOP ...City of Franklin... Franklin 0.5 ESE 1.69 in 0700 AM 06/08 COCORAHS ...City of Hampton... Hampton 8.1 W 2.49 in 0600 AM 06/08 COCORAHS Hampton 2.27 in 0936 AM 06/08 CWOP ...City of Newport News... 2 ESE Newport News Golf 3.18 in 0800 PM 06/07 Public Newport News 2.58 in 0940 AM 06/08 CWOP Newport News 6.9 NNW 2.47 in 0700 AM 06/08 COCORAHS Newport News 2.5 ESE 1.47 in 0704 AM 06/08 COCORAHS Newport News 2.7 ESE 1.43 in 0600 AM 06/08 COCORAHS ...City of Norfolk... 1 ESE Downtown Norfolk 3.50 in 0641 PM 06/07 Public Norfolk 5.0 SSW 2.33 in 0700 AM 06/08 COCORAHS Norfolk 2.30 in 0900 AM 06/08 CWOP Norfolk 1.6 NNW 2.02 in 0705 AM 06/08 COCORAHS ...City of Poquoson... Poquoson 2.86 in 1030 PM 06/07 Public ...City of Portsmouth... Portsmouth 4.1 SSE 3.45 in 0700 AM 06/08 COCORAHS 1 NW Cradock 3.24 in 1049 PM 06/07 Public Portsmouth 3.15 in 0913 AM 06/08 CWOP ...City of Richmond... 2 SW Downtown Richmond 2.91 in 0940 AM 06/08 AWS Richmond 1.1 SE 2.68 in 0840 AM 06/08 COCORAHS Richmond 3.9 NW 2.20 in 0700 AM 06/08 COCORAHS Richmond 1.68 in 0937 AM 06/08 CWOP 2 SW Dumbarton 1.61 in 0940 AM 06/08 AWS 2 SW Roslyn Hills 1.21 in 0940 AM 06/08 AWS ...City of Suffolk... 1 NE Nurney 4.50 in 0800 PM 06/07 Public Suffolk 2.65 in 0935 AM 06/08 AWOS Suffolk 3.1 NNW 1.39 in 0800 AM 06/08 COCORAHS Suffolk 13.9 NNE 1.38 in 0700 AM 06/08 COCORAHS Suffolk 6.3 N 1.29 in 0700 AM 06/08 COCORAHS Suffolk 2.9 NNW 1.21 in 0700 AM 06/08 COCORAHS ...City of Virginia Beach... Virginia Beach 3.33 in 0932 AM 06/08 CWOP Virginia Beach 8.2 WNW 1.60 in 0633 AM 06/08 COCORAHS 1 SSE Kempsville 1.59 in 0939 AM 06/08 AWS Virginia Beach 7.6 NW 1.53 in 0700 AM 06/08 COCORAHS 1 SSE Kempsville 1.45 in 1209 AM 06/08 AWS ...City of Williamsburg... Williamsburg 1.3 SSW 2.57 in 0700 AM 06/08 COCORAHS Williamsburg 1.57 in 0940 AM 06/08 AWS ...Dinwiddie County... Churchroad 2.05 in 0930 AM 06/08 CWOP ...Gloucester County... Gloucester Courthouse 5.8 SS 2.06 in 0649 AM 06/08 COCORAHS Gloucester Point 0.6 S 1.83 in 0700 AM 06/08 COCORAHS Gloucester Point 1.24 in 0700 PM 06/07 Trained Spotter Gloucester Courthouse 3.3 SE 1.21 in 0715 AM 06/08 COCORAHS Zanoni 1.7 SSE 1.13 in 0800 AM 06/08 COCORAHS Gloucester Courthouse 3.5 NN 1.07 in 0700 AM 06/08 COCORAHS ...Goochland County... Maidens 1.47 in 0930 AM 06/08 CWOP Manakin Sabot 1.33 in 0932 AM 06/08 CWOP ...Greensville County... Emporia 2.07 in 0935 AM 06/08 AWOS Purdy 1.87 in 0939 AM 06/08 CWOP Emporia 11.0 SW 1.40 in 0700 AM 06/08 COCORAHS ...Hanover County... Ashland 6.02 in 0600 PM 06/07 COOP Ashland 3.52 in 1209 AM 06/08 AWS Montpelier 4.8 E 3.42 in 0650 AM 06/08 COCORAHS 3 NNW Gilman 3.24 in 0603 PM 06/07 Cocorahs Elmont 3.20 in 0900 PM 06/07 Public 1 SE Rockville 3.18 in 0700 PM 06/07 Public Montpelier 2.37 in 0931 AM 06/08 CWOP Beaverdam 4.3 ESE 2.29 in 0700 AM 06/08 COCORAHS Beaverdam 2.18 in 0930 PM 06/07 CWOP Atlee 1.75 in 0940 AM 06/08 AWS Studley 1.65 in 0752 PM 06/07 Public Beaverdam 1.48 in 0830 AM 06/08 CWOP ...Henrico County... Glen Allen 4.6 W 4.27 in 0706 AM 06/08 COCORAHS Montrose 4.7 SSE 4.17 in 0700 AM 06/08 COCORAHS Glen Allen 4.02 in 0935 AM 06/08 CWOP Richmond 3.42 in 0935 AM 06/08 CWOP 1 WSW Laurel 1.83 in 0940 AM 06/08 AWS Richmond 1.68 in 1201 AM 06/08 CWOP 1 NW Lakeside 1.32 in 0940 AM 06/08 AWS East Highland Park 1.25 in 0940 AM 06/08 AWS ...Isle of Wight County... Windsor 0.5 ENE 1.42 in 0700 AM 06/08 COCORAHS Smithfield 7.2 W 1.34 in 0600 AM 06/08 COCORAHS Franklin J B Ros 1.30 in 0935 AM 06/08 AWOS Smithfield 3.6 SSE 1.12 in 0800 AM 06/08 COCORAHS Carrollton 1.11 in 0940 AM 06/08 CWOP Smithfield 0.7 NE 1.11 in 0700 AM 06/08 COCORAHS Smithfield 1.3 SW 1.06 in 0630 AM 06/08 COCORAHS Smithfield 6.9 NNW 1.00 in 0700 AM 06/08 COCORAHS ...James City County... Williamsburg 8.2 NW 3.75 in 0800 AM 06/08 COCORAHS Toano 3.54 in 0633 PM 06/07 Public Norge 3.53 in 0820 PM 06/07 Public Williamsburg 3.14 in 0931 AM 06/08 CWOP Fords Colony 2.62 in 0938 AM 06/08 CWOP Williamsburg 1.6 ESE 2.58 in 0700 AM 06/08 COCORAHS Williamsburg 3.2 NW 2.51 in 0800 AM 06/08 COCORAHS Williamsburg 3.2 WNW 2.37 in 0700 AM 06/08 COCORAHS Williamsburg 3.5 W 2.28 in 0700 AM 06/08 COCORAHS Williamsburg 4.1 WNW 2.22 in 0700 AM 06/08 COCORAHS Williamsburg 4.7 WSW 2.21 in 0600 AM 06/08 COCORAHS Williamsburg 3.7 SW 2.15 in 0700 AM 06/08 COCORAHS ...King William County... West Point 1.24 in 0931 AM 06/08 CWOP ...King and Queen County... West Point 1.51 in 0935 AM 06/08 AWOS ...Lunenburg County... Victoria 0.9 N 1.92 in 0700 AM 06/08 COCORAHS Kenbridge 1.86 in 0935 AM 06/08 AWOS ...Mecklenburg County... Chase City 2.70 in 0935 AM 06/08 AWOS Island Creek Reservoir 1.79 in 0900 AM 06/08 HADS ...New Kent County... Lanexa 4.60 in 0458 PM 06/07 Public Quinton 1.58 in 0935 AM 06/08 AWOS ...Nottoway County... Blackstone Fort 1.28 in 0935 AM 06/08 AWOS ...Prince Edward County... Farmville 1.0 SSW 1.78 in 0700 AM 06/08 COCORAHS Pamplin 1.07 in 0932 AM 06/08 CWOP ...Prince George County... Disputanta 6.3 NE 1.49 in 0700 AM 06/08 COCORAHS James River 1.34 in 0926 AM 06/08 RAWS Disputanta 1.22 in 0931 AM 06/08 CWOP ...Southampton County... Drewryville 2.3 SW 3.64 in 0649 AM 06/08 COCORAHS Ivor 1.0 SW 3.35 in 0600 AM 06/08 COCORAHS Courtland 3.20 in 0800 PM 06/07 Public Franklin 2.6 WNW 2.89 in 0700 AM 06/08 COCORAHS 2 WSW Courtland 2.71 in 0940 AM 06/08 AWS Sedley 3.7 N 2.10 in 0700 AM 06/08 COCORAHS ...Surry County... 1 SSW Booth Fork 3.10 in 0850 PM 06/07 Public Claremont 0.2 SW 2.46 in 0651 AM 06/08 COCORAHS ...Sussex County... Wakefield 0.1 ENE 5.30 in 0800 AM 06/08 COCORAHS Nws Offfice 4.65 in 1200 AM 06/08 COOP ...York County... Tabb 4.64 in 0800 PM 06/07 Public Newport News 5.8 NE 4.51 in 0700 AM 06/08 COCORAHS Newport News 7.5 NNE 3.98 in 0605 AM 06/08 COCORAHS Seaford 3.58 in 0930 AM 06/08 CWOP Williamsburg 2 N 2.07 in 1200 AM 06/08 COOP &&
Environment
Synoptic summary.
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| Figure 1: 12z/8 AM 500hPa Analysis | Figure 2: 12z/8 AM 850hPa Analysis | Figure 3: 12z/8 AM Surface Analysis |
18z/2 PM EDT Mesoanalysis.
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| Figure 4: 18z/2 PM MSLP/T/Td/Wind | Figure 5: 18z Precipitable Water | Figure 6: 18z/2 PM SBCAPE/CIN |
00z/8 PM EDT Mesoanalysis.
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| Figure 7: 00z/8 PM MSLP/T/Td/Wind | Figure 8: 00z/8 PM Precipitable Water | Figure 9: 00z/8 PM SBCAPE |
Selected Soundings from 18z/2 PM EDT.
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| Figure 10: 18z/2 PM KRIC-Richmond, VA Sounding (Cool Side of Front) | Figure 11: 18z/2 PM KASJ-Ahoskie, NC Sounding (Warm Side of Front) |
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