Alert archive / Virginia / Tornado Warnings in 2014
Tornado Warning 21, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Oct 15, 2014, 12:25 PM EDT for Arlington County, Fairfax County, City of Alexandria, Virginia; Prince George's County, Maryland. It was in force for 13 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Oct 15, 2014, 12:25 PM EDT (16:25 UTC)
- Expired
- Oct 15, 2014, 12:38 PM EDT
- In force
- 13 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
Counties Prince George's County, MD, Arlington County, VA, City of Alexandria, VA, Fairfax County, VA
The radar
The Sterling radar (KLWX), 43 km from the middle of the area, began a volume at 16:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 15, 12:25 PM EDT | TSTM WND DMG | 1 Wnw National Harbor, VA | LARGE TREE LIMB DOWN IN 700 BLOCK OF SOUTH ALFRED ST |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 4.4 hours before the alert went out and 35 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
- 157 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 660 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 311 m²/s²
- 0-3 km storm-relative helicity
- 297 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
989 WFUS51 KLWX 151625 TORLWX DCC001-MDC033-VAC013-059-510-151700- /O.NEW.KLWX.TO.W.0021.141015T1625Z-141015T1700Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1225 PM EDT WED OCT 15 2014 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * TORNADO WARNING FOR... THE DISTRICT OF COLUMBIA... SOUTHEASTERN ARLINGTON COUNTY IN NORTHERN VIRGINIA... WESTERN PRINCE GEORGES COUNTY IN CENTRAL MARYLAND... EASTERN CITY OF ALEXANDRIA IN NORTHERN VIRGINIA... EASTERN FAIRFAX COUNTY IN NORTHERN VIRGINIA... * UNTIL 100 PM EDT * AT 1223 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS NEAR HUNTINGTON...AND WAS MOVING NORTH AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... REAGAN NATIONAL AIRPORT... CRYSTAL CITY... US CAPITOL... NATIONALS PARK... ANACOSTIA... CORAL HILLS... GALLAUDET UNIVERSITY... DOWNTOWN WASHINGTON... HOWARD UNIVERSITY... RFK STADIUM... PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING AND AVOID WINDOWS. IF OUTDOORS OR IN A MOBILE HOME OR VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST RESORT...EITHER PARK AND STAY IN YOUR VEHICLE...OR ABANDON YOUR VEHICLE AND LAY FLAT IN A LOW SPOT. && LAT...LON 3876 7705 3879 7710 3894 7703 3888 7691 TIME...MOT...LOC 1625Z 202DEG 29KT 3881 7705 $$
1 follow-up statement
177 WWUS51 KLWX 151638 SVSLWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 1238 PM EDT WED OCT 15 2014 DCC001-MDC033-VAC013-059-510-151647- /O.CAN.KLWX.TO.W.0021.000000T0000Z-141015T1700Z/ ARLINGTON VA-DISTRICT OF COLUMBIA DC-PRINCE GEORGES MD- CITY OF ALEXANDRIA VA-FAIRFAX VA- 1238 PM EDT WED OCT 15 2014 ...THE TORNADO WARNING IS CANCELLED FOR THE CITY OF ALEXANDRIA... FAIRFAX...PRINCE GEORGES AND ARLINGTON COUNTIES AND THE DISTRICT OF COLUMBIA... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED. THUS THE TORNADO WARNING HAS BEEN CANCELLED. A WIND OBSERVATION OF 57 MPH WAS RECORDED IN ALEXANDRIA VIRGINIA AT 1225 PM IN ASSOCIATED WITH THIS THUNDERSTORM. LAT...LON 3876 7705 3879 7710 3894 7703 3888 7691 TIME...MOT...LOC 1637Z 202DEG 29KT 3890 7700 $$
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 15, 3:30 AM EDT | Flood Watch | LWX | 14 hr | |
| Oct 15, 4:32 AM EDT | Severe Thunderstorm Warning | LWX | Rockingham | 58 min |
| Oct 15, 5:13 AM EDT | Severe Thunderstorm Warning | LWX | Frederick | 47 min |
| Oct 15, 6:16 AM EDT | Severe Thunderstorm Warning | LWX | Clarke, Fauquier, Frederick, Loudoun, Rappahannock, Shenandoah and 2 more | 59 min |
| Oct 15, 6:21 AM EDT | Tornado Warning | LWX | Clarke, Frederick, Warren | 24 min |
| Oct 15, 10:17 AM EDT | Areal Flood Warning | LWX | Albemarle, Greene, Nelson | 6 hr |
| Oct 15, 11:34 AM EDT | Special Marine Warning | LWX | 56 min | |
| Oct 15, 12:05 PM EDT | Special Marine Warning | LWX | 55 min | |
| Oct 15, 1:46 PM EDT | Special Marine Warning | LWX | 59 min | |
| Oct 15, 2:04 PM EDT | Special Marine Warning | LWX | 56 min | |
| Oct 15, 3:12 PM EDT | Special Marine Warning | LWX | 93 min | |
| Oct 15, 3:48 PM EDT | Special Marine Warning | LWX | 87 min | |
| Oct 15, 7:30 AM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 4 hr |
| Oct 15, 1:04 PM EDT | Tornado Warning | LWX | Anne Arundel, Howard, Prince George's | 26 min |
Nearby
Tornado Warnings in Virginia, 2014Tornado Warnings in Maryland, 2014Tornado Warnings in District of Columbia, 2014Every tornado warning in 2014Tornadoes in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.