Alert archive / Maryland / Wind Advisories in 2021
Wind Advisory 14, NWS Baltimore/Washington
NWS Baltimore/Washington issued this wind advisory at Dec 6, 2021, 11:09 AM EST for 10 counties in Virginia; 13 counties in Maryland; 8 counties in West Virginia. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Dec 6, 2021, 11:09 AM EST (16:09 UTC)
- Expired
- Dec 7, 2021, 1:00 AM EST
- In force
- 14 hr
- Issued by
- NWS Baltimore/Washington
All 31 counties
Allegany County, MD, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Cecil County, MD, City of Baltimore, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Prince George's County, MD, Washington County, MD, Arlington County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Winchester, VA, Clarke County, VA, Fairfax County, VA, Frederick County, VA, Highland County, VA, Loudoun County, VA, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Jefferson County, WV, Mineral County, WV, Morgan County, WV, Pendleton County, WV
The radar
The Sterling radar (KLWX), 25 km from the middle of the area, began a volume at 16:10 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, 4.2 hours before the alert went out and 32 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 748 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 256 m²/s²
- 0-3 km storm-relative helicity
- 259 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
198 WWUS71 KLWX 061609 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1109 AM EST Mon Dec 6 2021 MDZ001-501-VAZ503-WVZ501-503-505-070015- /O.NEW.KLWX.WI.Y.0014.211206T1609Z-211207T0600Z/ Garrett-Extreme Western Allegany-Western Highland-Western Grant- Western Mineral-Western Pendleton- Including the cities of Mountain Lake Park, Oakland, Grantsville, Frostburg, Hightown, Bayard, Mount Storm, Elk Garden, and Riverton 1109 AM EST Mon Dec 6 2021 ...WIND ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...West winds 15 to 25 mph with gusts up to 50 mph. * WHERE...In Maryland, Garrett and Extreme Western Allegany Counties. In Virginia, Western Highland County. In West Virginia, Western Grant, Western Mineral and Western Pendleton Counties. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ Belak
5 follow-up statements
000 WWUS71 KLWX 062034 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 334 PM EST Mon Dec 6 2021 DCZ001-MDZ004>006-011-013-014-503>508-VAZ053-054-505-506-070500- /O.EXB.KLWX.WI.Y.0014.211206T2300Z-211207T0500Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- Southern Baltimore-Prince Georges-Anne Arundel- Northwest Montgomery-Central and Southeast Montgomery- Northwest Howard-Central and Southeast Howard-Northwest Harford- Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria- Western Loudoun-Eastern Loudoun- Including the cities of Washington, Frederick, Ballenger Creek, Eldersburg, Westminster, Reisterstown, Cockeysville, Baltimore, Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, Aberdeen, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falls Church, Purcellville, Leesburg, Ashburn, and Sterling 334 PM EST Mon Dec 6 2021 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph. * WHERE...The District of Columbia, much of northern and central Maryland including Baltimore, and northern Virginia. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. * ADDITIONAL DETAILS...The highest wind gusts are most likely in a 2 to 4 hour window between 7 and 11pm this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MDZ003-VAZ028-031-WVZ051>053-070300- /O.EXB.KLWX.WI.Y.0014.211206T2200Z-211207T0300Z/ Washington-Frederick VA-Clarke-Morgan-Berkeley-Jefferson- Including the cities of Hagerstown, Winchester, Berryville, Paw Paw, Martinsburg, Charles Town, and Shepherdstown 334 PM EST Mon Dec 6 2021 ...WIND ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph. * WHERE...In Maryland, Washington County. In Virginia, Frederick and Clarke Counties. In West Virginia, Morgan, Berkeley and Jefferson Counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. * ADDITIONAL DETAILS...The highest wind gusts are most likely in a 2 to 4 hour window between 6 and 10pm this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MDZ001-501-VAZ503-WVZ501-503-505-070600- /O.CON.KLWX.WI.Y.0014.000000T0000Z-211207T0600Z/ Garrett-Extreme Western Allegany-Western Highland-Western Grant- Western Mineral-Western Pendleton- Including the cities of Mountain Lake Park, Oakland, Grantsville, Frostburg, Hightown, Bayard, Mount Storm, Elk Garden, and Riverton 334 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...West winds 20 to 35 mph with gusts up to 55 mph. * WHERE...In Maryland, Garrett and Extreme Western Allegany Counties. In Virginia, Western Highland County. In West Virginia, Western Mineral, Western Grant and Western Pendleton Counties. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ DHOF
380 WWUS71 KLWX 062134 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 434 PM EST Mon Dec 6 2021 MDZ502-WVZ050-055-502-504-070300- /O.EXA.KLWX.WI.Y.0014.211206T2200Z-211207T0300Z/ Central and Eastern Allegany-Hampshire-Hardy-Eastern Grant- Eastern Mineral- Including the cities of Cumberland, Romney, Moorefield, Petersburg, Antioch, Keyser, New Creek, Ridgeville, Russelldale, Headsville, and Fort Ashby 434 PM EST Mon Dec 6 2021 ...WIND ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...West to northwest to 20 mph to 30 mph with gusts up to 50 mph. * WHERE...In Maryland, Central and Eastern Allegany County. In West Virginia, Hampshire, Hardy, Eastern Grant and Eastern Mineral Counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The highest gusts are most likely through 8 PM this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MDZ001-501-VAZ503-WVZ501-503-505-070545- /O.CON.KLWX.WI.Y.0014.000000T0000Z-211207T0600Z/ Garrett-Extreme Western Allegany-Western Highland-Western Grant- Western Mineral-Western Pendleton- Including the cities of Mountain Lake Park, Oakland, Grantsville, Frostburg, Hightown, Bayard, Mount Storm, Elk Garden, and Riverton 434 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...West to northwest winds 20 to 35 mph with gusts up to 55 mph. * WHERE...In Maryland, Garrett and Extreme Western Allegany Counties. In Virginia, Western Highland County. In West Virginia, Western Mineral, Western Grant and Western Pendleton Counties. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ DCZ001-MDZ004>006-011-013-014-503>508-VAZ053-054-505-506-070500- /O.CON.KLWX.WI.Y.0014.211206T2300Z-211207T0500Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- Southern Baltimore-Prince Georges-Anne Arundel- Northwest Montgomery-Central and Southeast Montgomery- Northwest Howard-Central and Southeast Howard-Northwest Harford- Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria- Western Loudoun-Eastern Loudoun- Including the cities of Washington, Frederick, Ballenger Creek, Eldersburg, Westminster, Reisterstown, Cockeysville, Baltimore, Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, Aberdeen, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falls Church, Purcellville, Leesburg, Ashburn, and Sterling 434 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...West to northwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...The District of Columbia, much of northern and central Maryland including Baltimore, and northern Virginia. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. * ADDITIONAL DETAILS...The highest wind gusts are most likely in a 2 to 4 hour window between 7 and 11pm this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MDZ003-VAZ028-031-WVZ051>053-070300- /O.CON.KLWX.WI.Y.0014.211206T2200Z-211207T0300Z/ Washington-Frederick VA-Clarke-Morgan-Berkeley-Jefferson- Including the cities of Hagerstown, Winchester, Berryville, Paw Paw, Martinsburg, Charles Town, and Shepherdstown 434 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...West to northwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...In Maryland, Washington County. In Virginia, Frederick and Clarke Counties. In West Virginia, Morgan, Berkeley and Jefferson Counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. * ADDITIONAL DETAILS...The highest wind gusts are most likely in a 2 to 4 hour window between 6 and 10pm this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
006 WWUS71 KLWX 070009 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 709 PM EST Mon Dec 6 2021 MDZ008-018-070500- /O.EXA.KLWX.WI.Y.0014.000000T0000Z-211207T0500Z/ Cecil-Calvert- Including the cities of Elkton, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby, and Prince Frederick 709 PM EST Mon Dec 6 2021 ...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...West to northwest winds 20 to 35 mph with gusts around 55 mph. * WHERE...Cecil and Calvert Counties. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The highest gusts are most likely through 11 PM this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MDZ001-501-VAZ503-WVZ501-503-505-070600- /O.CON.KLWX.WI.Y.0014.000000T0000Z-211207T0600Z/ Garrett-Extreme Western Allegany-Western Highland-Western Grant- Western Mineral-Western Pendleton- Including the cities of Mountain Lake Park, Oakland, Grantsville, Frostburg, Hightown, Bayard, Mount Storm, Elk Garden, and Riverton 709 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...West to northwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...In Maryland, Extreme Western Allegany and Garrett Counties. In Virginia, Western Highland County. In West Virginia, Western Mineral, Western Grant and Western Pendleton Counties. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ DCZ001-MDZ004>006-011-013-014-503>508-VAZ053-054-505-506-070500- /O.CON.KLWX.WI.Y.0014.000000T0000Z-211207T0500Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- Southern Baltimore-Prince Georges-Anne Arundel- Northwest Montgomery-Central and Southeast Montgomery- Northwest Howard-Central and Southeast Howard-Northwest Harford- Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria- Western Loudoun-Eastern Loudoun- Including the cities of Washington, Frederick, Ballenger Creek, Eldersburg, Westminster, Reisterstown, Cockeysville, Baltimore, Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, Aberdeen, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falls Church, Purcellville, Leesburg, Ashburn, and Sterling 709 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...Northwest winds 20 to 35 mph with gusts up to 55 mph. * WHERE...The District of Columbia, much of northern and central Maryland including Baltimore, and northern Virginia. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. * ADDITIONAL DETAILS...The highest wind gusts are most likely through 11pm this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ MDZ003-502-VAZ028-031-WVZ050>053-055-502-504-070300- /O.CON.KLWX.WI.Y.0014.000000T0000Z-211207T0300Z/ Washington-Central and Eastern Allegany-Frederick VA-Clarke- Hampshire-Morgan-Berkeley-Jefferson-Hardy-Eastern Grant- Eastern Mineral- Including the cities of Hagerstown, Cumberland, Winchester, Berryville, Romney, Paw Paw, Martinsburg, Charles Town, Shepherdstown, Moorefield, Petersburg, Antioch, Keyser, New Creek, Ridgeville, Russelldale, Headsville, and Fort Ashby 709 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...West winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Portions of north central and western Maryland, northwest Virginia and eastern and panhandle West Virginia. * WHEN...Until 10 PM EST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
467 WWUS71 KLWX 070232 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 932 PM EST Mon Dec 6 2021 MDZ003-502-VAZ028-031-WVZ050>053-055-502-504-070345- /O.CAN.KLWX.WI.Y.0014.000000T0000Z-211207T0300Z/ Washington-Central and Eastern Allegany-Frederick VA-Clarke- Hampshire-Morgan-Berkeley-Jefferson-Hardy-Eastern Grant- Eastern Mineral- Including the cities of Hagerstown, Cumberland, Winchester, Berryville, Romney, Paw Paw, Martinsburg, Charles Town, Shepherdstown, Moorefield, Petersburg, Antioch, Keyser, New Creek, Ridgeville, Russelldale, Headsville, and Fort Ashby 932 PM EST Mon Dec 6 2021 ...WIND ADVISORY IS CANCELLED... $$ MDZ001-501-VAZ503-WVZ501-503-505-070600- /O.CON.KLWX.WI.Y.0014.000000T0000Z-211207T0600Z/ Garrett-Extreme Western Allegany-Western Highland-Western Grant- Western Mineral-Western Pendleton- Including the cities of Mountain Lake Park, Oakland, Grantsville, Frostburg, Hightown, Bayard, Mount Storm, Elk Garden, and Riverton 932 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...West to northwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...In Maryland, Extreme Western Allegany and Garrett Counties. In Virginia, Western Highland County. In West Virginia, Western Mineral, Western Grant and Western Pendleton Counties. * WHEN...Until 1 AM EST Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ DCZ001-MDZ004>006-008-011-013-014-018-503>508-VAZ053-054-505-506- 070500- /O.CON.KLWX.WI.Y.0014.000000T0000Z-211207T0500Z/ District of Columbia-Frederick MD-Carroll-Northern Baltimore- Cecil-Southern Baltimore-Prince Georges-Anne Arundel-Calvert- Northwest Montgomery-Central and Southeast Montgomery- Northwest Howard-Central and Southeast Howard-Northwest Harford- Southeast Harford-Fairfax-Arlington/Falls Church/Alexandria- Western Loudoun-Eastern Loudoun- Including the cities of Washington, Frederick, Ballenger Creek, Eldersburg, Westminster, Reisterstown, Cockeysville, Elkton, Baltimore, Bowie, Suitland-Silver Hill, Clinton, College Park, Greenbelt, Laurel, Camp Springs, Glen Burnie, Annapolis, Severn, South Gate, Severna Park, Arnold, Odenton, Chesapeake Beach, Huntingtown, Dunkirk, North Beach, Lusby, Prince Frederick, Germantown, Damascus, Bethesda, Rockville, Gaithersburg, Silver Spring, Lisbon, Columbia, Ellicott City, Jarrettsville, Aberdeen, Reston, Herndon, Annandale, Centreville, Chantilly, McLean, Franconia, Arlington, Alexandria, Falls Church, Purcellville, Leesburg, Ashburn, and Sterling 932 PM EST Mon Dec 6 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EST TONIGHT... * WHAT...Northwest winds 20 to 20 mph with gusts up to 50 mph. * WHERE...The District of Columbia, much of northern and central Maryland including Baltimore, and northern Virginia. * WHEN...Until midnight EST tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. A few power outages may result. * ADDITIONAL DETAILS...The highest wind gusts are most likely through 11 PM this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
775 WWUS71 KLWX 070553 NPWLWX URGENT - WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1253 AM EST Tue Dec 7 2021 MDZ001-501-VAZ503-WVZ501-503-505-070700- /O.EXP.KLWX.WI.Y.0014.000000T0000Z-211207T0600Z/ Garrett-Extreme Western Allegany-Western Highland-Western Grant- Western Mineral-Western Pendleton- Including the cities of Mountain Lake Park, Oakland, Grantsville, Frostburg, Hightown, Bayard, Mount Storm, Elk Garden, and Riverton 1253 AM EST Tue Dec 7 2021 ...WIND ADVISORY WILL EXPIRE AT 1 AM EST EARLY THIS MORNING... Winds have diminished across the entire region. $$
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 5, 8:35 PM EST | Gale Warning | LWX | 30 hr | |
| Dec 6, 6:33 PM EST | Special Marine Warning | LWX | 117 min | |
| Dec 6, 6:57 PM EST | Special Marine Warning | LWX | 2 hr |
Nearby
Wind Advisories in Maryland, 2021Wind Advisories in Virginia, 2021Wind Advisories in West Virginia, 2021Every wind advisory in 2021
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.