Alert archive / West Virginia / Flash Flood Warnings in 2001
Flash Flood Warning 37, NWS Baltimore/Washington
NWS Baltimore/Washington issued this flash flood warning at Aug 4, 2001, 3:10 PM EDT for Grant County, West Virginia. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 4, 2001, 3:10 PM EDT (19:10 UTC)
- Expired
- Aug 4, 2001, 6:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties
County Grant County, WV
The radar
The Sterling radar (KLWX), 148 km from the middle of the area, began a volume at 19:09 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.2 hours before the alert went out and 156 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 334 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 922 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- -28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS51 KLWX 041913 FFWLWX WVC023-042215- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 310 PM EDT SAT AUG 4 2001 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * FLASH FLOOD WARNING FOR... GRANT COUNTY IN EASTERN WEST VIRGINIA * UNTIL 615 PM EDT DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER THE EASTERN AND SOUTHEASTERN PORTIONS OF GRANT COUNTY. THESE STORMS ARE NEARLY STATIONARY. RADAR ESTIMATES THAT OVER 2 INCHES OF RAIN HAS FALLEN NEAR PATTERSON CREEK AND LUNICE CREEK...BETWEEN MOOREFIELD AND PETERSBURG... IN THE PAST 90 MINUTES. IF WATER IS FLOWING ACROSS A ROADWAY TURN YOUR VEHICLE AROUND AND FIND AN ALTERNATE ROUTE. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. $$ JM!
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Aug 4, 2:38 PM EDT, 32 minutes earlier.
Area forecast discussion, Aug 4, 2:38 PM EDT, 32 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 238 PM EDT SAT AUG 4 2001 SCATTERED THUNDERSTORMS WITH SOME LOCALLY HEAVY RAIN THIS EVENING SHOULD GRADUALLY END AS SUN GOES DOWN. MODELS CONTINUE TO SHOW GRADUAL DISSAPATION OF UPPER AND SURFACE THROUGH OVER CWA INTO SUNDAY. MAJOR FEATURE IS LARGE UPPER LEVEL RIDGE BUILDING INTO AREA THIS WEEK WITH 850 MB TEMPS EXCEEDING 18 DEG C EACH DAY. COLD FRONT APPROACHES BY MID WEEK BUT MODELS KEEP IT TO NORTH. RESULT IS MORE WESTERLY FLOW MID WEEK AND HOT TEMPS. AFTERNOON HEAT INDEXES LIKELY FROM 100 TO 105 WITH HEAT AND HUMIDITY. WILL CONTIUE TO WATCH THUNDERSTORMS THIS EVENING. SO FAR ONLY ABOUT 1 INCH IN 1 HOUR FROM A FEW. WITH FF GUIDANCE GENERALLY ABOUT 2 INCHES AN HOUR AND 3 TO 4 INCHES IN 3 HOURS WILL BE OKAY AS LONG AS THEY KEEP MOVING. FCSTID = 1 DCA 69 89 71 93 / 30 10 10 10 BWI 67 89 69 92 / 30 10 10 10 MRB 65 88 67 91 / 40 10 10 10 IAD 67 88 68 92 / 30 10 10 10 CHO 67 88 69 93 / 30 10 10 10 HGR 65 88 66 91 / 40 10 10 10 NHK 69 89 70 92 / 30 10 10 10 W99 65 88 66 90 / 40 10 10 10 .LWX... DC...NONE. MD...NONE. VA...NONE. WV...NONE.
Nearby
Flash Flood Warnings in West Virginia, 2001Every flash flood warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.