Alert archive / Missouri / Frost Advisories in 2014
Frost Advisory 2, NWS St. Louis, MO
NWS St. Louis, MO issued this frost advisory at May 16, 2014, 2:58 PM CDT for 8 counties in Missouri; Adams County, Brown County, Pike County, Illinois. It took effect at May 17, 2014, 4:00 AM CDT. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 16, 2014, 2:58 PM CDT (19:58 UTC)
- In effect from
- May 17, 2014, 4:00 AM CDT
- Expired
- May 17, 2014, 7:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
Counties Adams County, IL, Brown County, IL, Pike County, IL, Audrain County, MO, Knox County, MO, Lewis County, MO, Marion County, MO, Monroe County, MO, Pike County, MO, Ralls County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 136 km from the middle of the area, began a volume at 19:56 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
Davenport, (KDVN), launched 12:00Z, 8.0 hours before the alert went out and 228 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 489 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
716 WWUS73 KLSX 161958 NPWLSX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 258 PM CDT FRI MAY 16 2014 ILZ095>097-MOZ018-019-026-027-034>036-042-171200- /O.NEW.KLSX.FR.Y.0002.140517T0900Z-140517T1200Z/ ADAMS IL-AUDRAIN MO-BROWN IL-KNOX MO-LEWIS MO-MARION MO-MONROE MO- PIKE IL-PIKE MO-RALLS MO-SHELBY MO- INCLUDING THE CITIES OF...BOWLING GREEN...HANNIBAL...MEXICO... QUINCY 258 PM CDT FRI MAY 16 2014 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 7 AM CDT SATURDAY... THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM 4 AM TO 7 AM CDT SATURDAY. * TIMING...FROST MAY BEGIN TO DEVELOP AS EARLY AS 4 AM AND CONTINUE THROUGH 7 AM. * TEMPERATURES...IN THE MID 30S. * IMPACTS...TENDER VEGETATION MAY BE DAMAGED BY THE FROST. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP DURING THE GROWING SEASON. THOSE WITH AGRICULTURAL INTERESTS IN THE ADVISORY AREA SHOULD PROTECT TENDER VEGETATION. ALSO...POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD. && $$ CARNEY
1 follow-up statement
176 WWUS73 KLSX 171153 NPWLSX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE ST LOUIS MO 653 AM CDT SAT MAY 17 2014 ILZ095>097-MOZ018-019-026-027-034>036-042-171300- /O.EXP.KLSX.FR.Y.0002.000000T0000Z-140517T1200Z/ ADAMS IL-AUDRAIN MO-BROWN IL-KNOX MO-LEWIS MO-MARION MO-MONROE MO- PIKE IL-PIKE MO-RALLS MO-SHELBY MO- INCLUDING THE CITIES OF...BOWLING GREEN...HANNIBAL...MEXICO... QUINCY 653 AM CDT SAT MAY 17 2014 ...FROST ADVISORY WILL EXPIRE AT 7 AM CDT THIS MORNING... TEMPERATURES WILL CONTINUE TO CLIMB OUT OF THE 30S THIS MORNING...THEREFORE THE FROST ADVISORY WILL BE ALLOWED TO EXPIRE AT 7 AM. $$ KANOFSKY
Nearby
Frost Advisories in Missouri, 2014Frost Advisories in Illinois, 2014Every frost advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.