Alert archive / Maryland / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 45, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at May 9, 2004, 11:43 PM EDT for Howard County, Montgomery County, Maryland. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 9, 2004, 11:43 PM EDT (03:43 UTC)
- Expired
- May 10, 2004, 12:30 AM EDT
- In force
- 47 min
- Issued by
- NWS Baltimore/Washington
- Area
- Counties, with a storm outline in the text
Counties Howard County, MD, Montgomery County, MD
The radar
The Sterling radar (KLWX), 44 km from the middle of the area, began a volume at 03:44 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 forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 9, 10:40 PM EDT, 1 hour 3 minutes earlier.
Area forecast discussion, May 9, 10:40 PM EDT, 1 hour 3 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 940 PM EST SUN MAY 9 2004 UPDATE.. XCPT WHERE CONVECTION IS GOING ON RMNDR OF AREA LOOKS TO BE M CLR OVRNGT. SOME PTCHY FOG IN MRNG...BUT NOT DENSE ENUF TO MAKE MENTION OF IN ZNS. ILL BE SPENDING THE NEXT PD OF TIME WATCHING TO SEE IF THE YORK CO. STORM WL SLIDE INTO HARFORD AT SVR LVLS...OR SLIDE E INTO CECIL LK THE OTHER ONE DID. WOODY TONIGHT-MON... LOOKS LIKE SUMMER WILL BE HERE TO STAY FOR A WHILE WITH SUBTROPICAL HIGH FCST TO REMAIN OFF THE EAST COAST THROUGH THE END OF THE WEEK. LIGHT SRLY FLOW AROUND HIGH WILL PROVIDE REGION WITH WARM AND HUMID CONDITIONS WITH TYPICAL ISOLD TO WDLY SCT LATE AFTERNOON AND EARLY EVENING CONVECTION AND PATCHY FOG TOWARD MORNING. WENT FOR HIGHS TOMORROW NEAR 90F AWAY FROM THE WATER GIVEN EXPECTED WARM START TO THE DAY AND H85 TEMPS NEAR 15C. WITH RESPECT TO POTENTIAL FOR CONVECTION THIS EVENING LOOKS LIKE BLUE RIDGE WILL BE POTENTIAL PLACE FOR INITIATION WITH ANY ACTIVITY POSSIBLY PROPAGATING SLOWLY TO THE EAST. THERE WILL BE A LOCALIZED THREAT OF GUSTY WINDS AND LARGE HAIL GIVEN WBZ LVLS BLO 10KFT AND STEEP MID-LVL LAPSE RATES. STORMS SHOULD BE OF THE PULSE VARIETY WITH LACK OF SHEAR. POTENTIAL EXIST FOR MCS DEVELOPMENT ACROSS NCNTRL PA LATE THIS AFTERNOON WHICH COULD ROLL ALG WARM FRONT ACROSS SERN PA THIS EVENING. THIS LOOKS TO AFFECT MAINLY PHLS AND CTPS CWAS WITH HARFORD CTY MD HAVING THE BEST CHANCE OF SEEING SOMETHING FROM THIS POTENTIAL MCS. WELL CONTINUE TO WATCH. ROSA .LONG TERM... MONDAY NIGHT THROUGH SUNDAY... RIDGE BUILDS OVER THE REGION WITH GOOD SOUTHERLY FLOW FROM THE SUBTROPICAL ANTICYCLONE THAT WILL EXTEND OVER THE SOUTHEASTERN AND MID ATLANTIC STATES MOST OF THE WEEK. WARM HUMID GULF AIR WITH TEMPS IN THE 80S WILL BE THE RULE THIS WEEK WITH A SCHC/CHC OF AFTERNOON AND EVENING THUNDERSTORMS ALMOST EVERY DAY. WESTERN TROF MOVES A COLD FRONT SLOWLY THROUGH THE REGION NEXT WEEKEND. ND && .LWX WATCHES/WARNINGS/ADVISORIES... DC...NONE. MD...NONE. VA...NONE. WV...NONE. MARINE...NONE. && ROSA/ND
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 11:28 PM EDT | Special Marine Warning | LWX | 92 min | |
| May 10, 2:00 PM EDT | Severe Thunderstorm Warning | LWX | Shenandoah | 60 min |
| May 9, 8:11 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 34 min |
| May 9, 11:26 PM EDT | Severe Thunderstorm Warning | LWX | Harford | 49 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2004Every severe thunderstorm warning in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.